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03.2005
Automotive Electronics Solutions
High Performance Analog ICs
Linear Technology Automotive Awards
Today's automotive environment demands high input voltage capability, wide operating temperature ranges and efficient thermal management. Consumer expectations and extended warranties demand years of trouble-free operation, so rugged dependable power conversion and management, signal conditioning and data conversion solutions are essential. Linear Technology's high-performance analog ICs provide efficient, compact and dependable solutions for use in engine management systems, body electronics and comfort systems. This selection guide features recommended Linear Technology solutions for a wide range of functions commonly used in today's automobiles, including telematics and infotainment systems, body electronics and engine management, safety systems and GPS/navigation systems. For information on our latest product releases for the continuously evolving automotive market, visit our web site at www.linear.com.
1993 ISO9001 Certification 1998 Ford Q1 Preferred Quality 1998 QS9000 Certification 2001 ISO14001 Certification 2002 Delphi Absolute Zero Defect Award 2003 TS16949: 2002 Certification ISO9001: 2000 Certification Delphi Commendation Award 2004 Harmon/Becker Automotive Systems A-Supplier Award
Best Supplier Rating, 0 ppm failure rate, 0 complaints
Reliability Improvement
0.40 OPERATING LIFE TEST @ +150C/+125C FAILU RE RAT E IN F IT S 0.35 Failure Rate Equivalent to +55C, 60% Confidence Level, Assuming 1.0 eV 0.30
Equivalent Device Hours 0.25 0.20 0.15 0.10 0.05 0.00 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 QU ART ER/C ALEN DAR YEAR Plastic Packaged Devices=393,233,420K
Automotive Electronics
BODY ELECTRONICS HVAC Control Door, Window & Seat Power * Security System * Tire Pressure Monitor
* * * *
NAVIGATION & ENTERTAINMENT Telematics Audio & Video Systems
LED POWER Instrument Panel Tailights * Headlights * Accent Lighting
* * *
ENGINE MANAGEMENT Engine Control Processor Power * Electronic Valves
EXHAUST SYSTEM Active Exhaust Resonance Tuning * Active Noise Cancellation
* * *
ELECTRONIC BRAKING ABS Processor Power Brake Caliper Power
* *
12V-42V POWER Power Conversion Fault Protection
*
ELECTRONIC STEERING Stability Control System Power * Steering Motor Power
Automotive Power Products
HIGH EFFICIENCY STEP-UP
Controllers: LTC(R)1680, LTC1871, LTC3703 Monolithic Switching Regulators: LT(R)1070/1/2, LT1170/1/2, LT1082 LED Drivers/CCFL: LT3466, LT3465/A, LT1768, LTC1697, LT1786
MEDIUM VOLTAGE STEP-DOWN 10V-40V
LDOs: LT1761/2/3/4, LT1962/3/4, LT3010, LT3014, LT3023/7, LT3024/8 Monolithic Switching Regulators: LT1940, LT1765, LT1767 LT1777, LT1070/1/2, LT1170/1/2, LT1082, LT1374 Controllers: LTC1624/5/8, LTC1871, LTC1436/9, LTC3727/8, LTC3731, LTC1735, LTC1159, LTC3703 PolyPhase(R): (High Power) LTC3728/9, LTC1628/9, LTC1929, LTC3727, LTC3732
<
>
<
INTERIOR/EXTERIOR LIGHTING
* * * *
Head Lamps CCFL Lighting Displays Backlighting
TRANSIENT PROTECTION
* *
ALL DIGITAL/ANALOG ELECTRONICS
Telematics Drivetrains Safety Security Remote Sensors Engine Controls
LOW VOLTAGE STEP-DOWN
LDOs: LT1761/2/3/4, LT1962/3/4, LTC1844, LT3023/7, LT3024/8 Monolithic Switching Regulators: LTC3405/6/7, LTC3411/2, LTC3414/18 Controllers: LTC1624, LTC3713, LTC3778, LTC1735, LTC1778, LTC1625, LT1538/9, LTC1438/9 PolyPhase: (High Power) LTC3728/9, LTC1628/9, LTC1929, LTC3727, LTC3731, LT1339
< > < >
* * * * * *
60V STEP-DOWN
LDO: LT3010, LT3014 Monolithic Switching Regulators: LT1676, LT1766, LT1956, LT3430/1 Controllers: LT1339, LTC4440, LTC3703 (100V)
* * * *
>
<5.5V
60V MICROPOWER STEP-DOWN
Monolithic Switching Regulators: LT3437/8, LT1976/7, LT3434/5 Controllers: LTC1871 LDO: LT3010, LT3014
ALL DIGITAL/ANALOG ELECTRONICS
Telematics Drivetrains Safety Security Remote Sensors Engine Controls
LOW VOLTAGE "IN CABIN" ELECTRONICS
* * * * * * *
< > <
Alternator
60V MICROPOWER BUCK-BOOST REGULATOR
LT3433
DVD Players CD/Radios Climate Control Car TV/PC GPS /Navigation Telematics Microprocessor Systems
"ALWAYS ON" SYSTEMS
*
-
+
* * * * *
12V/24V/42V
* * * * *
Safety Security Remote Sensors Engine Controls Comfort Control Motor Control Entertainment GPS/OnStarTM Telematics Lighting Control Memory
The chart above shows our DC/DC converters for either 12V/24V or 42V systems. See datasheets for more details.
02
S O L U T I O N S F O R A U T O M O T I V E A P P L I C AT I O N S
6 0 V S T E P - D O W N ( L O W I Q)
LT3434:
60V Step-Down Switching Regulator with Only 100A of Quiescent Current for "Always On" Applications Benefits:
VIN 3.3V TO 60V 4148 VIN 4.7F SHDN SW BOOST 0.33F 33H VOUT 3.3V 2A
. Output Current to 2.75A . 3.3V to 60V Input Voltage Capability to
Withstand Cold Crank/Load Dump
LT3434
VC 0.047F 12.5k 100pF 1F CT SYNC GND CSS VBIAS FB PGFB
0.1F
. Efficiencies Up to 90% . 200kHz Switching Frequency . IQ 100A . ISD<1A . Compact, Thermally Efficient Footprint
27pF
165k 1% 100F 100k 1%
Efficiency vs Load Current
100 90 80 EF F IC IEN C Y (%) 70 60 50 40 30 20 10
LT3434: Actual Size
Supply Current vs Input Voltage
150
VOUT = 5V SU PPLY C U RREN T ( A) 125 VOUT = 3.3V 100 75 50 25 0 0.001 0.01 0.1 1 10 0 10 20 30 40 50 60 LOAD C U RREN T (A) IN PU T VOLTA G E ( V)
VOUT = 3.3V
0
High Voltage, Low Quiescent Current Step-Down DC/DC Converters
Part No LT3434 LT3435 LT1976 LT1977 LT3433
LT1976: Actual Size
Device Function Step-Down Regulator Step-Down Regulator Step-Down Regulator Step-Down Regulator Buck-Boost Regulator Step-Down Regulator Step-Down Regulator Step-Down Regulator Step-Down Regulator High Voltage LDO High Voltage LDO
VIN Range 3.3 to 60V 3.3 to 60V 3.3 to 60V 3.3 to 60V 4 to 60V 3.3 to 80V 3.3 to 80V 3.3 to 34V 4.0 to 40V 3.5 to 80V 3.0 to 80V
ISW (A) 3.0 3.0 1.5 1.5 0.5 0.5 0.5 0.4 0.33 0.2 0.07
Frequency 200kHz 500kHz 200kHz 500kHz 200kHz 200kHz 500kHz COT* hystr. n/a n/a
* Constant Off Time
IQ (A) 100 100 100 100 100 80 80 12 26 30 7
ISD (A) <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1
Package TSSOP-16E TSSOP-16E TSSOP-16E TSSOP-16E TSSOP-16E DFN DFN ThinSOTTM ThinSOT MS8E DFN, ThinSOT
LT3437 LT3438 LT1934/-1 LT3470 LT3010 LT3014
S O L U T I O N S F O R A U T O M O T I V E A P P L I C AT I O N S
60V STEP-DOWN
03
LT3430:
60V, 3A (ISW), 200kHz Step-Down Switching Regulator in TSSOP-16E Benefits:
VIN 5.5V TO 60V VIN 4.7F 100V OFF ON BOOST SW 0.68F 22H VOUT 5V 2A + 15.4k SYNC GND FB 4.99k VC 100F
. Output Current to 2.75A . 5.5V to 60V Input Voltage Capability . Efficiencies Up to 90% . 200kHz Switching Frequency . IQ=2.5mA . Compact, Thermally Efficient Footprint
LT3430
SHDN BIAS
3.3k 0.022F
220pF FOR INPUT VOLTAGES BELOW 7.5V, SOME RESTRICTIONS MAY APPLY
Efficiency vs Load Current
100
90 EF F IC IEN C Y (%) VIN = 12V 80 VIN = 42V 70
60
VOUT = 5V L = 27H 0 0.5 1.0 1.5 2.0 2.5
50 L O AD CURREN T (A)
LT3430: Actual Size
High Voltage, High Efficiency Step-Down DC/DC Converters
Part No LT1676 LT1172/HV LT1956 LT1766 LT1076/HV LT1171/HV LT3431 LT3430 LT1071/HV LT1170/HV LT1070/HV LT1074/HV LT1339 LTC4440 LTC3703 Device Function Step-Down Regulator Step-Down Regulator Step-Down Regulator Step-Down Regulator Step-Down Regulator Step-Down Regulator Step-Down Regulator Step-Down Regulator Step-Down Regulator Step-Down Regulator Step-Down Regulator Step-Down Regulator Step-Down Controller High Side Gate Driver Step-Down Controller VIN Range (V) 7.4 to 60 3 to 40/60 5.5 to 60 5.5 to 60 7.3 to 45/64 3 to 40/60 5.5 to 60 5.5 to 60 3 to 40/60 3 to 40/60 3 to 40/60 7.3 to 64 9 to 60 6.5 to 60 5.5 to 100 ISW (A) 0.6 1.3 1.5 1.5 2.0 2.5 3.0 3.0 5.0 5.0 5.0 5.5 Ext FET Ext FET Ext FET Frequency 100kHz 100kHz 500kHz 200kHz 100kHz 100kHz 500kHz 200kHz 40kHz 100kHz 40kHz 100kHz 150kHz n/a 100-600kHz IQ 3.2mA 6mA 2.5mA 2.5mA 8.5mA 6mA 2.5mA 2.5mA 6mA 6mA 6mA 8.5mA 2.2A 250A n/a ISD (A) <30 <50 <25 <25 <140 <50 <30 <30 <50 <50 <50 <10 <150 <25 <50 Package N8/SO-8 DD, TO-220, SO-8, SO-16 TSSOP-16/E TSSOP-16/E DD, TO-220 DD, TO-220 TSSOP-16E TSSOP-16E TO-220 DD, TO-220 TO-220 DD, TO-220 SO-16, N20 ThinSOT SSOP-16, SSOP-28
04
S O L U T I O N S F O R A U T O M O T I V E A P P L I C AT I O N S
M E D I U M V O LTA G E H I G H E F F I C I E N C Y S T E P - D O W N
LT1940:
Dual 25V, 1.4A, 1.1MHz Step-Down Switching Regulator Benefits:
VIN 7V TO 25V
. Output Current to 1.4A per Channel . 25V Input Capability . Efficiencies Up to 85% . 1.1MHz Switching Frequency 100 . Anti-Phase Switching
Reduces Ripple Soft-Start Pins
EF F IC I EN C Y ( % )
4.7F VIN BOOST1 BOOST2
LT1940: Actual Size
VOUT1 3.3V 1.4A 0.1F
0.1F SW1 SW2 4.7H FB2 VC2 330pF 15k PG1 PG2 30.1k 10.0k
VOUT2 5V 1.4A
Efficiency vs Load Current
3.3H FB1 16.5k
LT1940
. Independent Shutdown/ . Independent PowerGood
Indicators
90
10.0k
330pF 15k
. ISD<1A . Compact, Thermally
Efficient Footprint
VOUT = 3.3V 70 VIN = 12V 0 0.5 1.0 1.5
1nF
80
10F
100k
RUN/SS2 GND
POWER GOOD
60
L O AD CURREN T (A)
Medium Voltage, High Efficiency Step-Down
Part No LT1934/-1 LT1776 LT1933 LT1940 LT1777 LT1767 LT1376/HV LT1765 LT1374/HV LT1270 LT1270A LTC1624 LTC1625 LTC1628 LTC3728 LTC1436 LTC1439 LTC3731 LTC1735 LTC1159 LTC3728L LTC3707 LTC3727 Device Function Step-Down Regulator Step-Down Regulator Step-Down Regulator Dual Step-Down Regulator Step-Down Regulator Step-Down Regulator Step-Down Regulator Step-Down Regulator Step-Down Regulator Step-Down Regulator Step-Down Regulator Step-Down Controller Step-Down Controller 2-Phase Step-Down Controller Dual 2-Phase Step-Down Controller Step-Down Controller Dual Step-Down Controller 3-Phase Step-Down Controller Step-Down Controller Step-Down Controller Dual 2-Phase Step-Down Controller 2-Phase Step-Down Controller Step-Down Controller VIN Range (V) 3.3 to 34 7.4 to 40 3.6 to 36 3.6 to 25 7 to 48 2.7 to 25 2.7 to 25/30 3 to 25 5 to 25/32 3.5 to 30 3.5 to 30 3.5 to 36 3.7 to 36 3.5 to 36 4.5 to 36 3.5 to 36 3.5 to 36 4.5 to 28 3.5 to 36 4 to 40 4.5 to 28 4.5 to 28 4 to 36 ISW (A) 0.4 0.7 0.75 1.4 X 2 1.5 1.5 1.5 3.0 4.5 8.0 10.0 Ext FET Ext FET Ext FET Ext FET Ext FET Ext FET Ext FET Ext FET Ext FET Ext FET Ext FET Ext FET Frequency COT 200kHz 500kHz 1.1MHz 200kHz 1.25MHz 500kHz 1.25MHz 500kHz 60kHz 60kHz 200kHz 150kHz 300kHz 550kHz 240kHz 400kHz 600kHz 500kHz 250kHz 550kHz 300kHz 550kHz IQ 12A 3.2mA 1.6mA 3.8mA 620A 1mA 2.5mA 1mA 2.5mA 7mA 7mA 550A 500A 350A 450A 280A 280A 3.5mA 450A 200A 450A 350A 670A ISD (A) <1 <30 <2 <1 <12 <6 <20 <15 <20 <100 <100 <16 <30 <20 <20 <25 <30 <50 <25 <20 <20 <20 <20 Package ThinSOT SO-8 ThinSOT TSSOP-16E SO-16 MS8E SO-8, SO-16 S0-8, TSSOP16E SO-8, TO-220, DD, TSSOP-16E TO-220 TO-220 SO-8 SSOP-16 SSOP-28, QFN SSOP-28, QFN SSOP-28, SSOP-24 SSOP-28, SSOP-36 SSOP-36, QFN SO-16, SSOP-16, TSSOP-20 SSOP-20, SO-16 SSOP-28, QFN SSOP-28, QFN SSOP-28, QFN
10F
VOUT = 5V
VC1 RUN/SS1
S O L U T I O N S F O R A U T O M O T I V E A P P L I C AT I O N S
L O W V O LTA G E S T E P - D O W N
HIGH EFFICIENCY STEP-UP
05
LTC3406B-2:
2.25 MHz, 600mA Synchronous Step-Down DC/DC Converter in ThinSOT Benefits: Efficiency vs Output Current
100 90 EFFI C I EN C Y ( % ) 80 70 60 50 40 30 20 10 0.1 1 10 100 1000 O UTP U T C U RREN T (mA) VIN = 4.2V
LTC3406B-2: Actual Size
VIN 2.7V TO 5.5V 4.7F
2.2H VIN SW 22pF 1M RUN GND VFB 499k
LT3406B-2
VOUT 1.8V 10F 600mA
. High Efficiency-Up to 96% . VIN: 2.25V to 5.5V . Low IQ: 350A . ISD <1A . Low Dropout Operation:
100% Duty Cycle
VOUT = 1.8V TA = 25C
VIN = 3.6V VIN = 2.7V
. No Schottky Diode Required . Current Mode Operation . Low Profile/Tiny
Solution Footprint
Part No LTC3405A LTC3404 LTC3406/B LTC3406B-2 LTC3407 LTC3407-2 LTC3411 LTC3412 LTC3414 LTC3416 LTC3418 LTC1772 LTC1622
VIN (V) 2.5 to 5.5 2.5 to 5.5 2.5 to 5.5 2.5 to 5.5 2.5 to 5.5 2.5 to 5.5 2.5 to 5.5 2.5 to 5.5 2.25 to 5.5 2.25 to 5.5 2.25 to 5.5 2.5 to 9.8 2 to 10
VOUT (V) 0.8 to 5.5 0.8 to 5.5 0.6 to 5.5 0.6 to 5.5 0.6 to 5.5 0.6 to 5.5 0.8 to 5.5 0.8 to 5.5 0.8 to 5.5 0.8 to 5.5 0.8 to 5.5 0.8 to 9.8 0.8 to 10
IOUT (A) 0.30 0.60 0.60 0.60 0.6 X 2 0.8 X 2 1.25 2.50 4.00 4.0 8.0 Ext FETs Ext FETs
Frequency 1.5MHz 1.4MHz 1.5MHz 2.25MHz 1.5MHz 2.25MHz 4MHz 4MHz 4MHz 4MHz 4MHz 550kHz 550kHz
IQ (A) 20 10 20 20 40 40 60 60 64 300 300 270 350
ISD (A) <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1
Package ThinSOT MS8 ThinSOT ThinSOT MS10, DFN MS10, DFN TSSOP-16E, DFN TSSOP-16E TSSOP-20E TSSOP-20E QFN ThinSOT MS8
LT3436: High Efficiency Step-Up Converters (including LCD Biasing)
3A, 35V, 800kHz Boost Converter in TSSOP-16E Benefits:
LT3436: Actual Size
EF FI C I EN CY ( %)
. Integrated 3A, 35V Switch . 3V to 25V Input Capability . Efficiencies Up to 85% . 800kHz Switching Frequency . Constant Current Limit
for all Duty Cycles
3.9H
Efficiency vs Load Current
90 85 80
VIN 5V 4.7F
VIN
VSW
LT3436
SHDN SYNC FB GND VC
90.9k
VOUT 12V 0.8A
10nF
. IQ<0.9mA, ISD<1A . Compact, Thermally
Efficient Footprint
75 70 65 VIN= 5V VOUT = 12V 60 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 L O AD CURREN T (A)
4.7k
470pF
10k 1%
22F
06
S O L U T I O N S F O R A U T O M O T I V E A P P L I C AT I O N S
HIGH EFFICIENCY STEP-UP
LOW NOISE LDOs
High Efficiency Step-Up Converters (including LCD Biasing)
Part No LT3464 LT1615-1 LT3461/A LT1615 LT3460 LT1945 LT1613 LTC3400/B LTC3401 LT1930/A LT3467 LT1618 LT1961 LT1935 LTC3402 LTC3424 LTC3421 LT3436 LTC3425 LT1370HV VIN Min (V) 2.3 1 2.5 1.2 2.5 1 1 0.85 0.5 2.6 2.4 1.6 3 2.3 0.5 0.5 0.5 3 0.5 2.7 VIN Max (V) 10 15 16 15 16 15 10 5 5 16 16 18 25 16 5 5 4.5 25 4.5 30 VOUT Max (V) 34 36 38 36 36 +36 36 6 6 16 40 36 34 40 6 6 5.25 34 5.25 42 ISW (A) 0.085 0.10 0.30 0.30 0.32 0.35 0.55 0.60 1.00 1.00 1.10 1.50 1.50 2.00 2.00 2.00 3.00 3.00 5.00 6.00 Frequency COT COT 1.3/3MHz COT 1.3MHz COT 1.4MHz 1.2MHz 3MHz 1.2/2.2MHz 1.3MHz 1.4MHz 1.25MHz 1.2MHz 3MHz 3MHz 3MHz 800kHz 8MHz 500kHz IQ 25A 20A 2.8mA 20A 2mA 20A 3 mA 19A 38A 4.2/5.5mA 1mA 1.8mA 0.9mA 3mA 38A 38A 12A 0.9mA 12A 4.5mA ISD (A) <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <6 <1 <1 <1 <1 <1 <1 <12 Package ThinSOT ThinSOT ThinSOT ThinSOT SC70, ThinSOT MS10 ThinSOT ThinSOT MS10 ThinSOT ThinSOT MS10 MS8E ThinSOT MS10 MS10 QFN-24 TSSOP-16E QFN-32 DD, TO220
LT3010:
80V, 50mA, Micropower LDO in MS8 Benefits:
D R OP O UT VOLT A G E (mV)
. 3V to 80V Input Capability . 300mV Dropout Voltage . Reverse Battery Protection . IQ<30A . ISD<1A . Stable with Ceramic
Capacitors
350 300 250 200 150 100 50 0 0
Dropout Voltage vs IOUT
VIN 5.4V TO 80V 1F
IN
OUT
LT3010-5
SHDN GND SENSE
1F
VOUT 5V 50mA
. Compact, Thermally
Efficient MS8E
10
20
30
40
50
O UTPUT C U RREN T (mA)
Low Noise LDOs: Negative Regulators
Part No IOUT Min VIN (V) Max VIN (V) Reference Voltage (V) Dropout Voltage (V) Output Noise (VRMS ) 30 n/a IQ ISD (A) Output Voltage (V) Package
LT1964 LT1175
200mA 500mA
-1.9 -4.3
-20 -20
-1.21 -3.8
0.34 0.50
30A 45A
<3 <10
Adj, -5 Adj, -5
ThinSOT DD, SOT-223, SO-8, PDIP8
LT1185
3A
-4.2
-35
-2.40
0.80
n/a
2.5mA
<1
Adj
T5
S O L U T I O N S F O R A U T O M O T I V E A P P L I C AT I O N S
LOW NOISE LDOs
LED DRIVERS
07
Low Noise LDOs: Positive Regulators
Part No IOUT 50mA 100mA Min VIN (V) 1.5 1.8 Max VIN (V) 80 20 Reference Voltage (V) 1.28 1.22 Dropout Voltage (V) 0.30 0.30 Noise (VRMS ) 30 20 IQ 30A 20A ISD (A) <1 <1 Output Voltage (V) Adj, 5 Adj, 1.5, 1.8, 2, 2.5, 2.8, 3, 3.3, 5 LT3023 LT3027 LT1762 LTC1844 Dual 100mA Dual 100mA 150mA 150mA 1.8 1.8 1.8 1.6 20 20 20 6.5 1.22 1.22 1.22 1.25 0.30 0.30 0.30 0.11 20 20 20 30 20A/LDO 20A/LDO 25A 40A <1 <1 <1 <1 Adj Adj Adj,2.5, 3, 3.3, 5 Adj,1.5, 1.8, 2.5, 2.8, 3.3 LT1962 300mA 1.8 20 1.22 0.27 20 30A <1 Adj,1.5, 1.8, 2.5, 3, 3.3, 5 LT1763 500mA 1.8 20 1.22 0.30 20 30A <1 Adj,1.5, 1.8, 2.5, 3, 3.3, 5 LT3024 LT3028 LT1963/A Dual 100/500mA Dual 100/500mA 1.5A 1.8 1.8 2.1 20 20 20 1.22 1.22 1.21 0.30 0.30 0.34 20 20 40 30A/LDO 30A/LDO 1mA <1 <1 <1 Adj Adj Adj,1.5, 1.8, 2.5, 3.3 LT1764/A 3A 2.7 20 1.21 0.34 40 1mA <1 Adj,1.8, 2.5, 3.3 DFN, TSSOP-16E DFN, TSSOP-16E DD, T5, SOT-223, S0-8 DD, T5 SO-8 MS8 DFN, MS10E DFN, MS10E MS8 ThinSOT Package
LT3010 LT1761
ThinSOT ThinSOT
LT3466:
Dual Full Function White LED Step-Up Converter with Built-In Schottky Diodes in a 3x3mm DFN Package Benefits:
3V TO 5V
. Drives Up to 20 White LEDs . 2.7V to 24V Input Capability . Two Independent Boost Converters Capable of
Driving Asymmetric LED Strings
SW1 VOUT1 LED1
VIN
SW2 VOUT2 LED2
LT3466
FB1 CTRL1 FB2 RT GND CTRL2
. Internal Schottky Diodes . Internal Soft Start . Open LED Protection (42V Max VOUT) . 2MHz Fixed Frequency Operation
SHUTDOWN AND DIMMING CONTROL 1
SHUTDOWN AND DIMMING CONTROL 2
High Efficiency LED Drivers
Part No Min VIN (V) 2.5 2.7 1.2 1.0 2.7 1.6 Max VIN Max VOUT (V) 10.0 16.0 15.0 10.0 24.0 18.0 34 30 34 34 40 34 Max Switch Current (mA) 340 400 300 400 2 X 400 1,500 Max No. White LEDs 4 6 8 8 2 X 10 20 Dimming Control PWM PWM PWM PWM PWM PWM Frequency IQ 1.9mA 2mA 20A 1.2mA 5.2mA 1.8mA ISD (A) <1 <1 <1 <1 <1 <1 Package
LT1937 LT3465/A LT1615 LT1932 LT3466 LT1618
1.2MHz 1.2/2.7MHz PFM 1.2MHz 2.0MHz 1.4MHz
ThinSOT, SC70 ThinSOT ThinSOT ThinSOT DFN MS10
08
S O L U T I O N S F O R A U T O M O T I V E A P P L I C AT I O N S
CCFL BACKLIGHTING AND LCD BIAS
LTC1697:
High Efficiency Low Power 1W CCFL Switching Regulator Benefits:
6 1 R1 330 Q1 10 2 3 5 T1 4
. 2.8V to 5.5V Input Capability . Synchronous Buck for
High Efficiency
LTC1697: Actual Size
C3 27pF 1kV
. Accurate Lamp Current
Maximizes Lamp Lifetime
VIN 2.8V TO 5.5V
. Internal or External PWM Dimming . MS10E Package
ICCFL vs RPROG
10 9 8 7 I C C FL (mA) 6 5 4 3
C1 10F C5 0.022F Li-Ion CELL +
C2 0.15F
Q2 CCFL LAMP 200k
L1 33H VIN OFF ON DIMMING INPUT 1V(0%) - 2V(100%) SHDN VDIM CDIM RPROG GND 8.25k SW OVSEN
LTC1697 LAMP
VC C4 0.1F
2 4k 5k 8k 10k 20k R PR OG ( )
CCFL/LED Backlight and LCD Biasing
Part No Min VIN (V) 1.2 2.5 2.0 2.6 1.0 1.5 1.8 1.5 3.5 3.5 2.8 3 2.4 2.7 1.0 3 2.5 2.7 8 Max VIN (V) 15 16 30 16 12 12 10 8 30 30 5.5 30 16 25 10 25 24 25 24 Max VOUT 34 38 50 44 28 28 20 25 60 60 60 60 40 42 30 34 40 42 28 Max Switch Current (A) 0.25 0.30 0.40 0.55 0.60 0.66 0.75 0.80 0.90 0.90 1.00 1.2/.625 1.30 1.50 2.00 3.00 3.00 3.00 Ext FETs Frequency IQ 20A 2.8mA 110A 7mA 50A/1.1mA 100A/4.8mA 120A 120A 6mA 6mA 440A 9mA 4mA 4mA 100A 0.9mA 5mA 40mA 7mA ISD (A) <1 <1 n/a <1 <1 <30/28 <10 <10 <5 <5 <1 <3 <1 <12 <5 <1 <1 <12 <65 Package
LT1945 LT3461/A LT1173 LT1942 LT1307/B LT1317/B LT1300 LT1304 LT1186F LT1786F LTC1697 LT1182/83 LT3471 LT1372/77 LT1308A/B LT3436 LT3479 LT1371/HV LT1768
Constant Off-Time 1.3/3MHz 23kHz 1MHz 600kHz 600kHz 155kHz 300kHz 200kHz 100kHz 300kHz 200kHz 1.2 MHz 500kHz/1MHz 600kHz 800kHz 3.5MHz 500kHz 350kHz
MS10 ThinSOT N8, S0-8 QFN MS8, N8, S0-8 MS8, S0-8 N8, S0-8 S0-8 S0-16 S0-16 MS10 S0-16 DFN S0-8 S0-8 TSSOP-16E DFN, TSSOP-16E SO-20, DD SSOP-16
Automotive Signal Chain Products
Linear Technology's signal chain ICs are designed, manufactured and tested to thrive in harsh under-hood environments. Automotive-grade data converters, amplifiers, monitors, voltage references, filters and oscillators offer features such as Over-The-Top(R) capability that allows device inputs to exceed the supply rails. These devices ensure guaranteed -40C to 125C specifications, low quiescent current, reverse supply protection, and reliable small footprint packages.
HIGH PERFORMANCE AMPLIFIERS LT1490/1, LT1494/5/6, LT1636, LT1637/8/9, LT1782, LT1783, LT1787, LTC1992-x, LTC2050/1/2, LTC2053, LTC2054/5, LTC6800, LTC6910/1-x, LTC6915
HIGH TEMPERATURE
POWER SUPPLY SUPERVISORS LTC1726, LTC1727, LTC1728, LTC2900, LTC2901, LTC2902, LTC2903, LTC2904, LTC2905
VIDEO AMPLIFIERS LT1395/6/7, LT1398/9, LT1675/-1, LT1818/9, LT6550/1, LT6553
COMPARATORS LT1716, LT6700
* * * *
Battery Monitors Remote Sensors Body Electronics Engine Controls
* * *
Lighting Systems Body Electronics Engine Controls
* *
Body Electronics Navigation and Entertainment
* *
Navigation Displays Rear Seat Entertainment Systems
1
2
3
4
2 Comparator
3
Supply Supervisor
1
Amp
6
ADC Processor
8
DAC
4
Amp Filter Buffer
5
Ref Transceiver
5 7
Ref
5
HIGH TEMPERATURE VOLTAGE REFERENCES LT1460, LT1461, LT1790, LT6650 Battery Monitors Remote Sensors Navigation Systems Engine Controls
6
MICROPOWER DATA CONVERTERS (ADCs) Analog to Digital LTC1860/60L, LTC1861/61L, LTC1863/63L, LTC1864/64L, LTC1865/65L, LTC1867/67L
7
RUGGED SERIAL TRANSCEIVERS
8
MICROPOWER DATA CONVERTERS (DACs) Digital to Analog LTC2600, LTC2601, LTC2602, LTC2604, LTC2610, LTC2611, LTC2612, LTC2614, LTC2620, LTC2621, LTC2622, LTC2624
LT1785, LT1796
* * * *
*
Delta-Sigma Analog to Digital LTC2433-1, LTC2436-1, LTC2439-1
* *
HVAC Control Door, Window and Seat Controls Security Systems
* * * *
Navigation Systems Gyro Monitoring General System Monitoring Measuring Temperature or Pressure Transducers
10
S O L U T I O N S F O R A U T O M O T I V E A P P L I C AT I O N S
M I C R O P O W E R D ATA C O N V E RT E R S
MICROPOWER DATA CONVERTERS
Adaptive Power
1000
5V
800
I C C ( A)
600
Differential Inputs (LTC1864)
LTC1864
DC to 20MHz SPI Port Output Data in 16 Clocks True Convert Start for Precise Sampling Control
400
200
2-Channel Multiplexer (LTC1865)
0 0 10 S A M P L E R ATE ( ksps) 100 250
Actual Size 8-Pin MSOP
Analog to Digital Converters
. Ideal for Navigation Systems,
Gyro Monitoring and General System Monitoring
Part Number LTC1864 (L) LTC1865 (L) LTC1867 (L) LTC1860 (L) LTC1861 (L) LTC1863 (L)
Resolution 16 16 16 12 12 12
Channels 1 2 8 1 2 8 250ksps 250ksps 200ksps 250ksps 250ksps 200ksps
Speed (150ksps) (150ksps) (175ksps) (150ksps) (150ksps) (175ksps) 4.25mW 4.25mW 6mW 4.25mW 4.25mW 6mW
Power (1.22mW) (1.22mW) (2.25mW) (1.22mW) (1.22mW) (2.25mW)
Package MSOP-8 MSOP-10 SSOP-16 MSOP-8 MSOP-10 SSOP-16
. Single 5V (or 3.3V, L-Version) Supply
Delta-Sigma Analog to Digital Converters
. Simple and Extremely Accurate for
Measuring Temperature or Pressure Transducers
Part Number LTC2433-1 LTC2436-1 LTC2439-1
Resolution 16-Bits 16-Bits 16-Bits
Channels 1 2 8/16
RMS Noise 1.45V 800nV 1V
Total Unadjusted Error 0.2LSB 0.2LSB 0.2LSB
Package MSOP-10 SSOP-16 SSOP-28
5V REF 1F 4.9k (100mV) 100 Thermocouple
LTC2436-1
VCC REF+ CHO+ CHOREFCH1+ CH1GND SCK SDO CS 3-Wire SPI Interface F0 = External Clock Source = Internal OSC/Simultaneous 50Hz/60Hz Rejection
S O L U T I O N S F O R A U T O M O T I V E A P P L I C AT I O N S
P O W E R S U P P LY S U P E RV I S O R S
R U G G E D S E R I A L I N T E R FA C E T R A N S C E I V E R S
11
Micropower Digital to Analog Converters
. Guaranteed Monotonic
Over Temperature
Resolution SPI 16-Bit 14-Bit 12-Bit
Single I2C LTC2606 LTC2616 LTC2626
SPI LTC2602 LTC2612 LTC2622
Dual I2C LTC2607 LTC2617 LTC2627
SPI LTC2604 LTC2614 LTC2624
Quad I2C LTC2609 LTC1619 LTC2629
SPI LTC2600 LTC2610 LTC2620
Octal I2C LTC2605 LTC2615 LTC2625
. 2.5V to 5.5V Operation . Low Power and
Tiny Packages
LTC2601 LTC2611 LTC2621
. SPI or I2C Versions
LTC2600/LTC2605 16-Bit DAC
16-Bit DAC
16-Bit DAC 16-Bit DAC 16-Bit DAC 16-Bit DAC Actual Size SSOP-16
16-Bit DAC 16-Bit DAC
SPI or I2C Serial I/O
SPI or I2C I/O
POWER SUPPLY SUPERVISORS
. Programmable Threshold
Combinations of 5V, 3.3V, 3V, 2.5V, 1.8V, 1.5V, ADJ
Part Number
# of Supplies
Watchdog
PWRGD
RESET Disable for Margining
Package
LTC2900 LTC2901 LTC2902 LTC2903 LTC1726 LTC1727 LTC1728 LTC2904 LTC2905
4 4 4 4 3 3 3 2 2 YES YES YES YES YES YES
MSOP-10, DFN-10 SSOP-16 SSOP-16 SOT-23-6 SO-8, MSOP-8 SO-8, MSOP-8 SOT-23-5 SOT-23-8, DFN-8 SOT-23-8, DFN-8
RUGGED SERIAL INTERFACE TRANSCEIVERS
Part Number LT1785 LT1796 Standard RS485 CAN Bus Voltage Protection 60V 60V ESD Protection 15kV 15kV Comments Standard pinout, half-duplex Standard SO-8 pinout, 125kbaud
12
S O L U T I O N S F O R A U T O M O T I V E A P P L I C AT I O N S
AMPLIFIERS
C O M PA R AT O R S
V O LTA G E R E F E R E N C E S
HIGH PERFORMANCE AMPLIFIERS
Part No. LT1490A/1A LT1494/5/6 LT1636 LT1637/8/9 LT1782 LT1783 LT1787 LTC1992-x LTC2050/1/2 LTC2053 LTC2054/5 LTC6800 LTC6910/1-x LTC6915 Channels 2/4 1/2/4 1 1/2/4 1 1 1 1 1/2/4 1 1/2 1 1/2 1 Bandwidth 60kHz 2.7kHz 60kHz 350kHz 65kHz 400kHz N/A 1.9MHz 3MHz 200kHz 500kHz 200kHz 5MHz 200kHz VSUPPLY 2.5V - 44V 2.2V - 36V 2.5V - 44V 2.5V - 44V 2.7V - 18V 2.7V - 18V 2.5V - 65V 2.7V - 11V 2.7V - 12V 2.7V - 11V 2.7V - 12V 2.7V - 5.5V 2.7V - 11V 2.7V - 11V ISUPPLY 90A 5A 75A 400A 100A 600A 140A 1.5mA 1.2mA 1.1mA 155A 1.3mA 3mA 1.5mA VOS 2.5mV 875V 325V 3mV 3mV 3mV 400V 4mV 3V 10V 3A 100V 12mV 10V Reverse Battery Yes Yes Yes Yes Yes Yes No No No No No No No No
-40C to 125C guaranteed specifications
Features Rail-to-Rail, Over-The-Top Rail-to-Rail, Over-The-Top Rail-to-Rail, Over-The-Top Rail-to-Rail, Over-The-Top Rail-to-Rail, Over-The-Top Rail-to-Rail, Over-The-Top Bi-directional Current Sense Amp Differential In/Out Amp Zero-drift Instrumentation Amp, Zero-drift Zero-drift, Ultralow Power Instrumentation Amp, Zero-drift Programmable Gain Amplifier Programmable Instrumentation Amp
RSENSE TO LOAD C 0.1F 2.5V TO 60V
IL V+ = 2.7 V to 44V VREF
Over-The-Top Inputs and Outputs
EXTERNAL PULLUP ABOUT V+
FILVS -
FIL+
LT1787
VS + VBIAS VOUT
44V Input Range
VOUT
+
VOUT = 35A INTERNAL PULLUP TO V+
LT1716 -
VEE
HIGH TEMPERATURE COMPARATORS
Part No. LT1716 LT6700 Channels 1 2 Prop Delay 9S 18S Reference No 400mV VSUPPLY 2.7V - 44V 1.4V - 18V ISUPPLY 70A 16A
-40C to 125C guaranteed specifications
Features Over-The-Top with 44V inputs Over-The-Top, Open Collector Outputs
HIGH TEMPERATURE VOLTAGE REFERENCES
Part No. LT1790 VOUT (V) 1.25/2.048/2.5/ 3/3.3/4.096/5 LT1461 2.5/3/3.3/ 4.096/5 LT1460 LT6650 2.5/5 0.4 to 18 50ppm/C 30ppm/C 0.20% 0.5% 3.4V - 30V 1.4V - 18V 165A 11A Yes No 20ppm/C 0.15% 2.8V - 20V 70A No Temp Coeff 10ppm/C Initial Accuracy 0.18% VSUPPLY 2.5V - 20V ISUPPLY 75A
-40C to 125C guaranteed specifications
Reverse Battery No Features Precision micropower, ThinSOT
Low dropout, shutdown
No output capacitor required Built-in buffer amp
S O L U T I O N S F O R A U T O M O T I V E A P P L I C AT I O N S
VIDEO AMPLIFIERS
13
VIDEO AMPLIFIERS
. Navigation displays . Rear seat entertainment systems
3.3V TO 12.6V
450
450 ROUT
RIN
+ 75 75
75 450 450 GOUT GIN
+ 75 75
75 450 450 BOUT BIN
+ 75 75
75 450 450 SYNCOUT SYNCIN
+ 75 75
75
LT6551
Selected Video Amplifiers
Part No. LT6553/4 LT1818/9 LT1675/-1 LT1398/9 LT1395/6/7 LT6550/1 LT6552 LT6205/6/7 Channels 3 1/2 1/3 2/3 1/2/4 3/4 1 1/2/4 Slew Rate 2500V/S 2500V/S 1100V/S 800V/S 800V/S 600V/S 600V/S 450V/S Bandwidth 650MHz 400MHz 250MHz 300MHz 400MHz 90MHz 75MHz 100MHz VSUPPLY 4.5V - 13.2V 4V - 12.6V 8V - 12.6V 4V - 15.5V 4V - 12.6V 3V - 12.6V 3V - 12.6V 2.7V - 12.6V ISUPPLY 11mA 10mA 14mA 6.5mA 6.5mA 10.5mA 16.5mA 5mA Features Fixed Gain of 2 or 1, -85dB distortion Low Noise, -85dB distortion 2:1 Multiplexer, Fixed Gain of 2 0.1dB Gain Flatness to 150 MHz Current Feedback, 80mA output Fixed Gain of 2, Operates on 3.3V Difference Amp, Rail-to-Rail Output Low Cost, Rail-to-Rail Output
LTC, LT, Over-The-Top, and PolyPhase are registered trademarks and ThinSOT is a trademark of Linear Technology Corporation. All other trademarks are the property of their respective owners. (c) 2005 Linear Technology Corporation.
SALES OFFICES
NORTH AMERICA
NORTHWEST AREA Bay Area 720 Sycamore Dr. Milpitas, CA 95035 Phone: (408) 428-2050 FAX: (408) 432-6331 Denver Phone: (303) 926-0002 Portland 6700 SW 105th Ave., Ste. 207 Beaverton, OR 97008 Phone: (503) 520-9930 FAX: (503) 520-9929 Sacramento Phone: (408) 432-6326 Salt Lake City Phone: (801) 731-8008 Seattle 2018 156th Ave. NE, Ste. 100 Bellevue, WA 98007 Phone: (425) 748-5010 FAX: (425) 748-5009 SOUTHWEST AREA Los Angeles 21243 Ventura Blvd., Ste. 238 Woodland Hills, CA 91364 Phone: (818) 703-0835 FAX: (818) 703-0517 Orange County 15375 Barranca Pkwy., Ste. A-213 Irvine, CA 92618 Phone: (949) 453-4650 FAX: (949) 453-4765 San Diego 5090 Shoreham Place, Ste. 110 San Diego, CA 92122 Phone: (858) 638-7131 FAX: (858) 638-7231 CENTRAL AREA Chicago 2040 E. Algonquin Rd., Ste. 512 Schaumburg, IL 60173 Phone: (847) 925-0860 FAX: (847) 925-0878 Cleveland 7550 Lucerne Dr., Ste. 106 Middleburg Heights, OH 44130 Phone: (440) 239-0817 FAX: (440) 239-1466 Columbus Phone: (614) 488-4466 Detroit Phone: (248) 414-5211 Indiana Phone: (317) 581-9055 SOUTHEAST AREA Atlanta Phone: (770) 888-8137 Austin 8500 N. Mopac, Ste. 603 Austin, TX 78759 Phone: (512) 795-8000 FAX: (512) 795-0491 Dallas 17000 Dallas Pkwy., Ste. 200 Dallas, TX 75248 Phone: (972) 733-3071 FAX: (972) 380-5138 Fort Lauderdale Phone: (954) 473-1212 Houston 1080 W. Sam Houston Pkwy., Ste. 225 Houston, TX 77043 Phone: (713) 463-5001 FAX: (713) 463-5009 Huntsville Phone: (256) 885-0215 Orlando Phone: (407) 688-7616 Raleigh 15100 Weston Pkwy., Ste. 202 Cary, NC 27513 Phone: (919) 677-0066 FAX: (919) 678-0041 Tampa Phone: (813) 634-9434 Kansas Phone: (913) 829-8844 Minneapolis 7805 Telegraph Rd., Ste. 225 Bloomington, MN 55438 Phone: (952) 903-0605 FAX: (952) 903-0640 Wisconsin Phone: (262) 859-1900 NORTHEAST AREA Boston 15 Research Place North Chelmsford, MA 01863 Phone: (978) 656-4750 FAX: (978) 656-4760 Connecticut Phone: (860) 228-4104 Philadelphia 3220 Tillman Dr., Ste. 120 Bensalem, PA 19020 Phone: (215) 638-9667 FAX: (215) 638-9764
ASIA
CHINA Linear Technology Corp. Ltd. Unit 2108, Metroplaza Tower 2 223 Hing Fong Road Kwai Fong, N.T., Hong Kong Phone: +852 2428-0303 FAX: +852 2348-0885 Linear Technology Corp. Ltd. Room 902, Peregrine Plaza 1325 Huaihai M. Road Shanghai, 200031, PRC Tel: +86 (21) 6375-9478 Fax: +86 (21) 5465-5918 Linear Technology Corp. Ltd. Room 707, 7th Floor Beijing Canway Building 66 Nan Li Shi Lu Beijing, 100045, PRC Phone: +86 (10) 6801-1080 FAX: +86 (10) 6805-4030 Linear Technology Corp. Ltd. Rm. 2109, Shenzhen Kerry Centre 2008 Shenzhen Renminnan Lu Shenzhen, China Phone: +86 755-8236-6088 FAX: +86 755-8236-6008 JAPAN Linear Technology KK 8F Shuwa Kioicho Park Bldg. 3-6 Kioicho Chiyoda-ku Tokyo, 102-0094, Japan Phone: +81 (3) 5226-7291 FAX: +81 (3) 5226-0268 Linear Technology KK 6F Kearny Place Honmachi Bldg. 1-6-13 Awaza, Nishi-ku Osaka-shi, 550-0011, Japan Phone: +81 (6) 6533-5880 FAX: +81 (6) 6543-2588 Linear Technology KK 3F Sakae Members Office Bldg. 4-16-8 Sakae, Naka-ku Nagoya 460-0008, Japan Phone: +81-52-269-9510 FAX: +81-52-269-9520 KOREA Linear Technology Korea Co., Ltd. Yundang Building, #1002 Samsung-Dong 144-23 Kangnam-Ku, Seoul 135-090, Korea Phone: +82 (2) 792-1617 FAX: +82 (2) 792-1619 SINGAPORE Linear Technology Pte. Ltd. 507 Yishun Industrial Park A Singapore 768734 Phone: +65 6753-2692 FAX: +65 6752-0108 TAIWAN Linear Technology Corporation 8F-1, 77, Nanking E. Rd., Sec. 3 Taipei, Taiwan Phone: +886 (2) 2505-2622 FAX: +886 (2) 2516-0702
EUROPE
FINLAND Linear Technology AB Teknobulevardi 3-5 P.O. Box 35 FIN-01531 Vantaa Finland Tel: +358 (0)9 2517 8200 Fax: +358 (0)9 2517 8201 FRANCE Linear Technology S.A.R.L. Immeuble "Le Quartz" 58, Chemin de la Justice 92290 Chatenay Malabry, France Phone: +33 (1) 41 07 95 55 FAX: +33 (1) 46 31 46 13 Linear Technology "Le Charlemagne" 140, cours Charlemagne 69286 Lyon Cedex 2, France Phone: +33 (4) 72 41 63 86 FAX: +33 (4) 72 41 62 99 GERMANY Linear Technology GmbH Oskar-Messter-Str. 24 D-85737 Ismaning Germany Phone: +49 (89) 962455-0 FAX: +49 (89) 963147 Linear Technology GmbH Haselburger Damm 4 D-59387 Ascheberg Germany Phone: +49 (2593) 9516-0 FAX: +49 (2593) 951679 Linear Technology GmbH Jesinger Strasse 65 D-73230 Kirchheim/Teck Germany Tel: +49 (0)7021 80770 Fax: +49 (0)7021 807720 ITALY Linear Technology Italy Srl Via Giovanni da Udine, 34 I-20156 Milano Italy Phone: +39 (02) 38093656 FAX: +39 (02) 38093659 SWEDEN Linear Technology AB Electrum 204 Isafjordsgatan 22 SE-164 40 Kista Sweden Phone: +46 (8) 623 16 00 FAX: +46 (8) 623 16 50 UNITED KINGDOM Linear Technology (UK) Ltd. 3 The Listons, Liston Road Marlow, Buckinghamshire SL7 1FD United Kingdom Phone: +44 (1628) 477066 FAX: +44 (1628) 478153
LINEAR TECHNOLOGY CORPORATION
1630 McCarthy Blvd. Milpitas, CA 95035-7417 Tel: 408-432-1900 www.linear.com
AB030510K

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