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KA7630/KA7631
Fixed Multi-Output Regulator
Features
* Output Currents up to 0.5A (Output1 & 2) * Output Current up to 1A with External Transistor (Output3) * Fixed Precision Output 1 Voltage 5.1V 2% * Fixed Precision Output 2 Voltage 8V 2% (KA7630) * Fixed Precision Output 2 Voltage 9V 2% (KA7631) * Control Signal Generator for Output 3 Voltage (12V 2%) * Reset Facility for Output Voltage1 * Output 2,3 with Disable by TTL Input * Current Limit Protection at Each Output * Thermal Shut Down
Description
The KA7630/KA7631 is a multi-output positive voltage regulator designed to provide fixed precision output voltages of 5.1V, 8V (7630) / 9V(7631) at current up to 0.5Aand 12V at current up to 1A with external PNP transistor. An internal reset circuit generates a reset pulse when the output 1 decreases below the regulated value. Output2 & 3 can be disabled by TTL input. Protection features include over voltage protection, short circuit protection and thermal shutdown.
10-SIP H/S
Internal Block Diagram
Vin1 1 10uA 3 Cd 100nF RESET Vsys 6 +
SW Thermal Shut Down OVP Bandgap Reference
Vin2 2
OVP
Vin1
2.5V
DEL.CAP
+ SCP
9 Output 1
+ 50mV
Vin2
10K A614 "Y" Control 10 Output3 7 +
SCP
+ + Output 2,3 1.4V
SCP
8 Output 2
5 GND
4 Disable
Rev. 1.0.1
(c)2002 Fairchild Semiconductor Corporation
KA7630/KA7631
Absolute Maximum Ratings
Parameter DC Input Voltage Disable Input Voltage Output Current Power Dissipation Junction Temperature Operating Temperature Symbol Vin Vc Io Pd Tj Topr Value 20 20 0.5 1.5 +150 0 ~ +125 Unit V V A W C C Remark No Heatsink -
Electrical Characteristics(KA7630)
(Refer to test circuit Vin1=7.5V ,Vin2=10.5V ,Tj = +25C, unless otherwise specified) Parameter Output Voltage 1 Symbol Vo1 Conditions Io1 = 10mA 7.5VOutput Voltage 2 Dropout Output Voltage 1,2 Line Regulation 1,2 Load Regulation 1,2 Output Voltage 3 Line Regulation 3 Load Regulation 3 Reset Pulse Delay Saturation Voltage in Reset Condition Leakage Current at Pin 6 Output Voltage Thermal Drift Short Circuit Output Current Disable Voltage High Disable Voltage Low Disable Bias Current Junction Temperature for TSD Quiescent Current Reset Threshold Voltage Reset Threshold Hysteresis
Vo2 Vd1,2 Vo 1,2 Vo 1,2 Vo3 Vo3 Vo3 Trd VrL IrH STt Isc1,2 VdisH VdisL Idis Ttsd Iq Vr Vrth
V V mV mV V mV mV ms V A ppm/C A V V A C mA V mA
Notes: 1. To check the reset circuit ,the reset output is low to discharge the delay capacitor(=Cd). it's less than Vo1-0.25V. And the reset output is high when the delay capacitor voltage linearly increased by the internal current source(10A) if it's more than Vo1- 0.2V. The equation of delay time is same as below. Trd = (Cd x 2.5) / 10A 2. These parameters, although guaranteed, are not 100% tested in production.
2
KA7630/KA7631
Electrical Characteristics(KA7631) (Continued)
(Refer to test circuit Vin1=7.5V ,Vin2=11.5V ,Tj = +25C, unless otherwise specified) Parameter Output Voltage 1 Symbol Vo1 Conditions Io1 = 10mA 7.5V < Vin1 < 14V 5mA < Io1 < 500mA Io2 = 10mA 11.5V < Vin2 < 18V 5mA < Io2< 500mA Io1,2 = 500mA 7.5V < Vin1< 14V 11.5V < Vin2< 18V Io1,2 = 200mA 5mA < Io1< 500mA 5mA < Io2 < 500mA Vsys =13V, Io3 = 100mA 13V < Vin2 <18V, Io3 =100mA 5mA < Io3 < 1A Cd = 100nF, Note1 I6 = 5mA V6 = 10V 0C < Tj < +125C , Note2 Vin1 = 7.5V ,Vin2 = 11.5V Output 2 Active Output 2 Disabled 0V < Vdis < 7V Note2 Io1=10mA, Output2 Disabled K = Vo1 Note1 Min. 5 4.9 8.82 8.65 11.7 0.8 0.8 -100 K-0.4 20 Typ. 5.1 5.1 9 9 12 25 100 145 K-0.25 50 Max. 5.2 5.3 9.18 9.35 2.5 50 80 100 160 12.3 120 250 0.4 10 1.6 2.0 2.0 2 2 K -0.1 100 Unit V
Output Voltage 2 Dropout Output Voltage 1,2 Line Regulation 1,2 Load Regulation 1,2 Output Voltage 3 Line Regulation 3 Load Regulation 3 Reset Pulse Delay Saturation Voltage in Reset Condition Leakage Current at Pin 6 Output Voltage Thermal Drift Short Circuit Output Current Disable Voltage High Disable Voltage Low Disable Bias Current Junction Temperature for TSD Quiescent Current Reset Threshold Voltage Reset Threshold Hysteresis
Vo2 Vd1,2 Vo 1,2 Vo 1,2 Vo3 Vo3 Vo3 Trd VrL IrH STt Isc1,2 VdisH VdisL Idis Ttsd Iq Vr Vrth
V V mV mV V mV mV ms V A ppm/C A V V A C mA V mA
Notes: 1. To check the reset circuit ,the reset output is low to discharge the delay capacitor(=Cd). if it's less than Vo1-0.25V. And the reset output is high when the delay capacitor voltage linearly increased by the internal current source(10A) if it's more than Vo1- 0.2V. The equation of delay time is same as below. Trd = (Cd x 2.5) / 10A 2. These parameters, although guaranteed, are not 100% tested in production.
3
KA7630/KA7631
Mechanical Dimensions
Package Dimensions in millimeters
10-SIP-H/S
3.25 0.20 0.128 0.008 #1 1.50 ) 0.059 0.50 0.10 0.020 0.004 (
25.75 0.10 1.013 0.004
26.05 MAX 1.026
#10 1.30 ( ) 0.051
2.54 0.100
1.30 0.10 0.051 0.004
1.00 0.20 0.039 0.008 7.00 0.30 0.276 0.012 8.90 0.20 0.350 0.008 13.65 0.30 0.537 0.012 16.80 MAX 0.661
0.50 0.10 0.020 0.004
4
1.65 0.10 0.065 0.004
3.80 0.20 0.150 0.008
23.86 0.20 0.939 0.008
KA7630/KA7631
Ordering Information
Product Number KA7630 KA7631 Package 10-SIP-H/S Operating Temperature 0C to +125C
5
KA7630/KA7631
DISCLAIMER FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN; NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS. LIFE SUPPORT POLICY FAIRCHILD'S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD SEMICONDUCTOR CORPORATION. As used herein: 1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant into the body, or (b) support or sustain life, and (c) whose failure to perform when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in a significant injury of the user.
www.fairchildsemi.com 11/12/02 0.0m 001 Stock#DSxxxxxxxx 2002 Fairchild Semiconductor Corporation
2. A critical component in any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness.

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