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MIC2563A
Micrel
MIC2563A
Dual Slot PCMCIA/CardBus Power Controller
Preliminary Information
General Description
The MIC2563A Dual Slot PCMCIA (Personal Computer Memory Card International Association) and CardBus Power Controller handles all PC Card slot power supply pins, both VCC and VPP. The MIC2563A switches between the three VCC voltages (0V, 3.3V and 5.0V) and the VPP voltages (OFF, 0V, 3.3V, 5V, or 12.0V) required by PC Cards. The MIC2563A switches voltages from the system power supply to VCC and VPP. Output voltage is selected by two digital inputs each and output current ranges up to 1A for VCC and 250mA for VPP. The MIC2563A provides power management capability controlled by the PC Card logic controller. Voltage rise and fall times are well controlled. Medium current VPP and high current VCC output switches are self-biasing: no +12V supply is required for 3.3V or 5V output. The MIC2563A is designed for efficient operation. In standby (sleep) mode the device draws very little quiescent current, typically 0.3A. The device and PCMCIA port is protected by current limiting and overtemperature shutdown. Full crossconduction lockout protects the system power supplies. The MIC2563A is an improved version of the MIC2563, offering lower ON-resistances and a VCC pulldown clamp in the OFF mode. It is available in a 28-pin SSOP.
Applications
* * * * * * * * * * Dual Slot PC Card Power Supply Pin Voltage Switch CardBus Slot Power Supply Control Data Collection Systems Machine Control Data Input Systems Wireless Communications Bar Code Data Collection Systems Instrumentation Configuration/Datalogging Docking Stations (portable and desktop) Power Supply Management Power Analog Switching
2
Features
* * * * * * * * * * * * * Single Package Controls Two PC Card Slots High Efficiency, Low Resistance Switches Require No 12V Bias Supply No External Components Required Output Current Limit and Overtemperature Shutdown Ultra Low Power Consumption Complete Dual Slot PC Card/CardBus VCC and VPP Switch Matrix in a Single Package Logic Compatible with Industry Standard PC Card Logic Controllers No Voltage Shoot-Through or Switching Transients Break-Before-Make Switching Digital Selection of VCC and VPP Voltages Over 1A VCC Output Current for Each Section Over 250mA VPP Output Current for Each Section 28-Pin SSOP Package
Ordering Information
Part Number MIC2563A-0BSM MIC2563A-1BSM Temperature Range -40C to +85C -40C to +85C Package 28-pin SSOP 28-pin SSOP
Typical Application
5V
(opt)
System Power 3.3V Supply 12V
(opt)
VPPIN VCC3IN VCC5IN (opt)
VPP1 VPP2 PCMCIA Card Slot A VCC
EN0
Note: see the logic table inside for a description of the differences between the logic options
PCMCIA Card Slot Controller
EN1 VCC5_EN VCC3_EN
MIC2563
VPP1 EN0 EN1 VCC5_EN VCC3_EN PCMCIA VPP2 PCMCIA Card Slot Card Slot B VCC
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MIC2563A
Micrel
(Notes 1 and 2) Supply Voltage, VPP IN ...................................................... 15V VCC3 IN ................................................................ 7.5V VCC5 IN ................................................................ 7.5V Logic Input Voltages ..................................... -0.3V to +10V Output Current (each Output) VPP OUT ............................ >200mA, Internally Limited VCC OUT ...................................... >1A, Internally Limited
Absolute Maximum Ratings
Power Dissipation, TAMBIENT 25C ...... Internally Limited SSOP .............................................................. 800 mW Derating Factors (To Ambient) SSOP ............................................................. 4 mW/C Storage Temperature .............................. -65C to +150C Operating Temperature (Die) ................................... 125C Lead Temperature (5 sec) ........................................ 260C
Pin Configuration
A VCC5 IN A VCC OUT A VCC5 IN GND A VCC5_EN A VCC3_EN A EN0 A EN1 B VPP IN B VPP OUT NC B VCC OUT B VCC3 IN B VCC OUT
28 2 3 4 5 6 7 8 9 10 11 12 13 14 27 26 25 24 23 22 21 20 19 18 17 16 15
Logic Block Diagram
A VPP IN (optional) A EN1 A EN0
MIC2563 Section A Control Logic
AVCC OUT A VCC3 IN A VCC OUT NC A VPP OUT A VPP IN B EN1 B EN0 B VCC3_EN B VCC5_EN GND B VCC5 IN B VCC OUT B VCC5 IN
A VPP OUT
A VCC5_EN A VCC3_EN
A VCC OUT
A VCC3 IN
28 Pin SSOP Package
A VCC5 IN
ILimit / Thermal Shut Down
Connect all pins with the same name together for proper operation.
Gate Drive Generator
B VPP IN (optional) B EN1 B EN0
MIC2563 Section B Control Logic
B VPP OUT
B VCC5_EN
MIC2563A-1 Redefined Pin Assignment Function VPP_VCC VPP_PGM Pin Number Slot A Slot B 7 21 8 22
B VCC3_EN
B VCC OUT
VCC3 IN VCC5 IN
Some pin names for the MIC2563A-1 are different from the MIC2563A-0. This table shows the differences. All other pin names are identical to the MIC2563A-0 as shown in the Pin Configuration, above. 2-48
ILimit / Thermal Shut Down Gate Drive Generator
GND
1997
MIC2563A
Micrel
(Over operating temperature range with VCC3 IN = 3.3V, VCC5 IN = 5.0V, VPP IN = 12V, unless Conditions Min Typ Max Units
Electrical Characteristics:
otherwise specified.) Symbol DIGITAL INPUTS VIH VIL IIN Logic 1 Input Voltage Logic 0 Input Voltage Input Current Parameter
2.2 -0.3 0 V < VIN < 5.5V
7.5 0.8 1
V V A
VPP OUTPUT IPP OUT Hi-Z IPPSC RO High Impedance Output Leakage Current Short Circuit Current Limit Switch Resistance Shutdown Mode 0 VPP OUT 12V VPP OUT = 0 Select VPP OUT = 5V Select VPP OUT = 3.3V IPP OUT = -100mA (Sourcing) VPP IN = 12V IPP OUT = -100 mA (Sourcing) Select VPP OUT = clamped to ground IPP OUT = 50A (Sinking) 0.2 1 10 A
0.3 1.8 3.3 2.5 5
A
2
RO
Switch Resistance, Select VPP OUT = 12V Switch Resistance, Select VPP OUT = 0V
0.6
1
RO
2500
3900
VPP SWITCHING TIME (See Figure 1) t1 t2 t3 t4 t5 t6 t7 t8 t9 t10 t14 t15 t16 t11 t12 t13 Output Turn-ON Delay (Note 3) VPP OUT = Hi-Z to 10% of 3.3V VPP OUT = Hi-Z to 10% of 5V VPP OUT = Hi-Z to 10% of 12V VPP OUT = 10% to 90% of 3.3V VPP OUT = 10% to 90% of 5V VPP OUT = 10% to 90% of 12V VPP OUT = 3.3V to 90% of 12V VPP OUT = 5V to 90% of 12V VPP OUT = 12V to 90% of 3.3V VPP OUT = 12V to 90% of 5V VPP OUT = 3.3V to Hi-Z VPP OUT = 5V to Hi-Z VPP OUT = 12V to Hi-Z VPP OUT = 90% to 10% of 3.3V VPP OUT = 90% to 10% of 5V VPP OUT = 90% to 10% of 12V 100 100 100 100 100 100 100 5 10 70 200 300 225 250 200 200 350 200 200 200 50 50 300 50 50 250 800 1000 800 1000 800 800 1200 1000 1000 1000 1000 1000 2000 s
Output Rise Time (Note 3)
s
Output Transition Timing (Note 3)
s
Output Turn-Off Delay Time (Notes 3, 5)
ns
Output Turn-OFF Fall Time (Note 3)
ns
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Electrical Characteristics (continued)
Symbol VCC OUTPUT ICCSC RO Short Circuit Current Limit Switch Resistance VCC OUT = 0 Select VCC OUT = 3.3V ICC OUT = -1A (Sourcing) Select VCC OUT = 5V ICC OUT = -1A (Sourcing) Select VCC OUT = clamped to ground ICC OUT = 0.1mA (Sinking) VCC SWITCHING TIME (See Figure 2) t1 t2 t3 t4 t7 t8 t5 t6 POWER SUPPLY ICC5 VCC5 IN Supply Current (5V) VCC OUT = 5V or 3.3V, ICC OUT = 0 VCC OUT = 0V (Sleep Mode) ICC3 VCC3 IN Supply Current (3.3V) (Note 6) IPP IN VPP IN Supply Current (12V) (Note 7) VCC OUT = 5V or 3.3V, ICC OUT = 0 VCC OUT = 0V (Sleep Mode) VPP OUT = 3.3V or 5V. IPP OUT = 0 VPP OUT = Hi-Z, 0 or VPP 8 0.2 40 0.1 0.3 0.3 50 10 100 10 4 4 A A A Output Fall Time (Note 4) Output Turn-Off Delay (Notes 4, 5) Output Turn ON Delay Time (Note 4) Output Rise Time (Note 4) VCC OUT = 0V to 10% of 3.3V VCC OUT = 0V to 10% of 5.0V VCC OUT = 10% to 90% of 3.3V VCC OUT = 10% to 90% of 5V VCC OUT = 3.3V VCC OUT = 5V VCC OUT = 90% to 10% of 3.3V VCC OUT = 90% to 10% of 5.0V 100 100 200 200 300 750 700 1500 2.4 2.8 240 600 1500 3000 2500 6000 8 8 1000 2000 s ms s s 1 1.5 100 150 A m Parameter Conditions Min Typ Max Units
70
100
m
500
3900
VCC5 VCC3 VPP IN
Operating Input Voltage (5V) Operating Input Voltage (3.3V) Operating Input Voltage (12V)
VCC5 IN not required for operation (Note 6) VPP IN not required for operation (Note 8)
-- 3.0 --
5.0 3.3 12.0
6 6 14.5
V V V
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Electrical Characteristics (continued)
Symbol Parameter Conditions Min Typ Max Units
THERMAL SHUTDOWN TSD Thermal Shutdown Temperature 130 C
NOTE 1: NOTE 2: NOTE 3: NOTE 4: NOTE 5: NOTE 6: NOTE 7: NOTE 8:
Functional operation above the absolute maximum stress ratings is not implied. Static-sensitive device. Store only in conductive containers. Handling personnel and equipment should be grounded to prevent damage from static discharge. RL = 100 connected to ground. RL = 10 connected to ground. Delay from commanding Hi Z or 0V to beginning slope. Does not apply to current limit or overtemperature shutdown conditions. The MIC2563A uses VCC3 IN for operation. For single 5V supply systems, connect 5V to both VCC3 IN and VCC5IN. See Applications Information for further details. VPP IN is not required for operation. VPP IN must be either high impedance or greater than or approximately equal to the highest voltage VCC in the system. For example, if both 3.3V and 5V are connected to the MIC2563A, VPP IN must be either 5V, 12V, or high impedance.
2
A VPP Enable
0
B
C
D
E
F
G
H
J
K
VPP to 3.3V
VPP to 12V
VPP to 3.3V
VPP OFF
VPP to 5V
VPP to 12V
VPP to 5V
VPP OFF
VPP to 12V
VPP OFF
t13 t10
t7
t9
t8
t6
t16
12V
VPP Output
t1
t3 t2 t4 t11 t5 t15 t12
5V t14 3.3V
0
Figure 1. MIC2563A VPP Timing Diagram. VPP Enable is shown generically: refer to the timing tables (below). At time "A" VPP = 3.3V is selected. At B, VPP is set to 12V. At C, VPP = 3.3V (from 12V). At D, VPP is disabled. At E, VPP is programmed to 5V. At F, VPP is set to 12V. At G, VPP is programmed to 5V. At H, VPP is disabled. At J, VPP is set to 12V. And at K, VPP is again disabled. RL = 100 for all measurements. Load capacitance is negligible.
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MIC2563A
A VCC Enable
0
Micrel
B C D
VCC to 3.3V
VCC OFF
VCC to 5V
VCC OFF
t1
t2 t4
t8 t6
5V
t3
t7 t5
3.3V
VCC Output
0
Figure 2. MIC2563A VCC Timing Diagram. VCC Enable is shown generically: refer to the timing tables (below) for specific control logic input. At time A, VCC is programmed to 3.3V. At B, VCC is disabled. At C, VCC is programmed to 5V. And at D, VCC is disabled. RL = 10
MIC2563A-0 Control Logic Table VCC5_EN
0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1
VCC3_EN
0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1
EN1
0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1
EN0
0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1
VCC OUT
Clamped to Ground Clamped to Ground Clamped to Ground Clamped to Ground 3.3 3.3 3.3 3.3 5 5 5 5 3.3 3.3 3.3 3.3
VPP OUT
High Z High Z High Z Clamped to Ground High Z 3.3 12 Clamped to Ground High Z 5 12 Clamped to Ground High Z 3.3 5 Clamped to Ground
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MIC2563A
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MIC2563A-1 Control Logic (compatible with Cirrus Logic CL-PD6710 & PD672x-series Controllers) VCC5_EN
0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1
VCC3_EN
0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1
VPP_PGM
0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1
VPP_VCC
0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1
VCC OUT
Clamped to Ground Clamped to Ground Clamped to Ground Clamped to Ground 5 5 5 5 3.3 3.3 3.3 3.3 Clamped to Ground Clamped to Ground Clamped to Ground Clamped to Ground
VPP OUT
Clamped to Ground High Z High Z High Z Clamped to Ground 5 12 High Z Clamped to Ground 3.3 12 High Z Clamped to Ground High Z High Z High Z
2
MIC2563A-2 Logic (Compatible with Databook Controllers) Pin 5
0 1 0 1 0 1 0 1
Pin 6
1 1 0 0 1 1 0 0
Pin 7
0 0 0 0 1 1 1 1
Pins 2 & 14
VCC OUT
Clamped to Ground 3.3V 3.3V 3.3V Clamped to Ground 5V 5V 5V
Pin 13
VPP OUT
Clamped to Ground 3.3V 12V Clamped to Ground Clamped to Ground 5V 12V Clamped to Ground
VCCSEL0(1) VPPSEL0(1) VCCSEL2(3)
The Databook DB86184 PCMCIA controller requires two 100k pull-down resistors from pins 5 and 7 to ground and a 100k pull-up resistor from pin 6 to +3.3V (or +5V). Connect MIC2560-2 pin 8 to ground.
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Applications Information
PC Card power control for two sockets is easily accomplished using the MIC2563A PC Card/CardBus Slot V & CC V Power Controller IC. Four control bits per socket deterPP mine V and V voltage and standby/operate CC OUT PP OUT mode condition. V outputs of 3.3V and 5V at the maximum CC allowable PC Card current are supported. V output PP OUT voltages of V (3.3V or 5V), V , 0V, or a high impedance CC PP state are available. When the V clamped to ground condiCC tion is selected, the device switches into "sleep" mode and draws only nanoamperes of leakage current. Full protection from hot switching is provided which prevents feedback from the V (from 5V to 3.3V, for example) by locking out the CC OUT low voltage switch until the initial switch's gate voltage drops below the desired lower V .
CC
If no card is inserted or the system is in sleep mode, the slot logic controller outputs a (VCC3 IN, VCC5 IN) = (0,0) to the MIC2563A, which shuts down VCC. This also places the switch into a high impedance output shutdown (sleep) mode, where current consumption drops to nearly zero, with only tiny CMOS leakage currents flowing. Internal device control logic and MOSFET drive and bias voltage is powered from VCC3 IN. The high voltage bias is generated by an internal charge pump quadrupler. Systems without 3.3V may connect VCC3 IN to 5V. Input logic threshold voltages are compatible with common PC Card logic controllers using either 3.3V or 5V supplies. The PC Card Specification defines two VPP supply pins per card slot. The two VPP supply pins may be programmed to different voltages. VPP is primarily used for programming FLASH memory cards. Implementing two independent VPP voltages is easily accomplished with the MIC2563A and a MIC2557 PCMCIA VPP Switching Matrix. Figure 3 shows this full configuration, supporting independent VPP and both 5.0V and 3.3V VCC operation. However, few logic controllers support multiple VPP--most systems connect VPP1 to VPP2 and the MIC2557 is not required. This circuit is shown in Figure 4. During Flash memory programming with standard (+12V) Flash memories, the PC Card slot logic controller outputs a (0 , 1) to the EN0, EN1 control pins of the MIC2563A, which connects VPP IN (nominally +12V) to VPP OUT. The low ON resistance of the MIC2563A switch allows using a small bypass capacitor on the VPP OUT pins, with the main filtering action performed by a large filter capacitor on VPP IN (usually the main power supply filter capacitor is sufficient). Using a small-value capacitor such as 0.1F on the output causes little or no timing delays. The VPP OUT transition from VCC to 12.0V typically takes 250s. After programming is completed, the controller outputs a (EN1, EN0) = (0,1) to the MIC2563A, which then reduces VPP OUT to the VCC level. Break-before-make switching action and controlled rise times reduces switching transients and lowers maximum current spikes through the switch. Figure 5 shows MIC2563A configuration for situations where only a single +5V VCC is available. Output Current and Protection MIC2563A output switches are capable of passing the maximum current needed by any PC Card. The MIC2563A meets or exceeds all PCMCIA specifications. For system and card protection, output currents are internally limited. For full system protection, long term (millisecond or longer) output short circuits invoke overtemperature shutdown, protecting the MIC2563A, the system power supplies, the card socket pins, and the PC Card.
The MIC2563A operates from the computer system main power supply. Device logic and internal MOSFET drive is generated internally by charge pump voltage multipliers . Switching speeds are carefully conpowered from V CC3 IN trolled to prevent damage to sensitive loads and meet all PC Card Specification timing requirements. Supply Bypassing External capacitors are not required for operation. The MIC2563A is a switch and has no stability problems. For best results however, bypass VCC3 IN, VCC5 IN, and VPP IN inputs with 1F capacitors to improve output ripple. As all internal device logic and comparison functions are powered from the VCC3 IN line, the power supply quality of this line is the most important, and a bypass capacitor may be necessary for some layouts. Both VCC OUT and VPP OUT pins may use 0.01F to 0.1F capacitors for noise reduction and electrostatic discharge (ESD) damage prevention. PC Card Slot Implementation The MIC2563A is designed for full compatibility with the Personal Computer Memory Card International Association's (PCMCIA) PC Card Specification, (March 1995), including the CardBus option. When a memory card is initially inserted, it should receive V -- either 3.3V 0.3V or 5.0V 5%. The initial voltage is CC determined by a combination of mechanical socket "keys" and voltage sense pins. The card sends a handshaking data stream to the controller, which then determines whether or not this card requires V and if the card is designed for dual PP V . If the card is compatible with and desires a different V CC CC level, the controller commands this change by disabling V , CC waiting at least 100ms, and then re-enabling the other V CC voltage. V switches are turned ON and OFF slowly. If commanded CC to immediately switch from one V to the other (without CC turning OFF and waiting 100ms first), enhancement of the second switch begins after the first is OFF, realizing breakbefore-make protection. V switches are turned ON slowly PP and OFF quickly, which also prevents cross conduction.
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MIC2563A
5V
(opt)
Micrel
5V
(opt)
System Power 3.3V Supply 12V
(opt)
VPPIN VCC3IN VCC5IN (opt)
System Power 3.3V Supply 12V
(opt)
VPP1 VPP2 PCMCIA Card Slot A VCC PCMCIA Card Slot Controller VPP1
VPPIN VCC3IN VCC5IN (opt) (opt)
VPP1 VPP2 PCMCIA Card Slot A VCC
EN0 EN1 VCC5_EN VCC3_EN
A EN0 A EN1 A VCC5_EN A VCC3_EN
MIC2563
PCMCIA Card Slot Controller
MIC2563
VPP1 B EN0 B EN1 B VCC5_EN B VCC3_EN PCMCIA VPP2 PCMCIA Card Slot Card Slot B VCC
EN0 EN1 VCC5_EN VCC3_EN
PCMCIA VPP2 PCMCIA Card Slot Card Slot B VCC
EN0 EN1
MIC2558
EN0 EN1
2
Figure 3. PC Card slot power control application with dual VCC (5.0V or 3.3V) and separate VPP1 and VPP2.
Figure 4. Typical PC Card slot power control application with dual VCC (5.0V or 3.3V). Note that VPP1 and VPP2 are driven together.
5V System Power Supply 12V
(opt)
VPPIN VCC3IN VCC5IN (opt)
VPP1 VPP2 PCMCIA Card Slot A VCC
A EN0 A EN1 A VCC5_EN PCMCIA Card Slot Controller A VCC3_EN
MIC2563
VPP1 B EN0 B EN1 B VCC5_EN B VCC3_EN PCMCIA VPP2 PCMCIA Card Slot Card Slot B VCC
Figure 5. PC Card slot power control application without a 3.3V VCC supply. Note that VCC3 IN and VCC5 IN lines are driven together. The MIC2563A is powered from the VCC3 IN line. In this configuration, VCC OUT will be 5V when either VCC3 or VCC5 is enabled.
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MIC2563A
RST# VCC
Micrel
20 SER_DATA 2 D Q 19
1 CLR 4
74x175
9 CLK D Q 2 A_VPP_PGM (Pin 8)
3
D
Q
18
5
D
Q
7
A_VPP_VCC (Pin 7)
4
D
Q
17
12
D
Q
10
A_VCC5_EN (Pin 5)
5
D
Q
16
13
D
Q
15
A_VCC3_EN (Pin 6)
6
D
Q
15
4
D
Q
2
B_VPP_PGM (Pin 22)
7
D
Q
14
5
D
Q
7
B_VPP_VCC (Pin 21)
8
D
Q
13
12
D
Q
10
B_VCC3_EN (Pin 19)
9
D
Q
12 10
13
D
Q
15
B_VCC5_EN (Pin 20)
SER_CLK
11
74x574
1
1 CLR
9 CLK
74x175
SER_LATCH
Figure 6. Interfacing the MIC2563A with a serial-output data controller. Pinouts shown are for the MIC2563A-1 and a three-wire serial controller. Serial Control Figure 6 shows conversion from a three-wire serial interface, such as used by the Cirrus Logic CL-PD6730, to the standard eight-line parallel interface used by the MIC2563A-1. This interface requires three common, low cost 7400-series logic ICs: * 74x574 Octal D Flip-Flop * 74x175 Quad Flip-Flop with Latches (two needed) Either 3.3V or 5V logic devices may be used, depending upon the control voltage employed by the slot logic controller. Pin numbers in parenthesis refer to the MIC2563A-1BSM. GerberTM files for this P.C. board layout are available to Micrel customers. Please contact Micrel directly. Another serial-to-parallel solution for this application is the 74HC594, 8-bit shift register with output registers. This device contains the eight D flip-flops plus has latched outputs suitable for this purpose. Component Key U1 ............. MIC2563 U2, U3 ...... 74x175 U4 ............. 74x574 Serial Control Adapter P.C. Board Layout
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