MIC2562A Micrel Semiconductor, MIC2562A Datasheet

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MIC2562A

Manufacturer Part Number
MIC2562A
Description
PCMCIA/CardBus Socket Power Controller
Manufacturer
Micrel Semiconductor
Datasheet

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MIC2562A
General Description
The MIC2562A PCMCIA (Personal Computer Memory Card
International Association) and CardBus Power Controller
handles all PC Card slot power supply pins, both V
The MIC2562A switches between the three V
3.3V and 5.0V) and the V
12.0V) required by PC Cards. The MIC2562A switches
voltages from the system power supply to V
Output voltage is selected by two digital inputs each and
output current ranges up to 1A for V
The MIC2562A provides power management capability con-
trolled by the PC Card logic controller. Voltage rise and fall
times are well controlled. Medium current V
current V
is required for 3.3V or 5V output.
The MIC2562A is designed for efficient operation. In standby
(sleep) mode the device draws very little quiescent current,
typically 0.3 A. The device and PCMCIA port is protected by
current limiting and overtemperature shutdown. Full cross-
conduction lockout protects the system power supply.
The MIC2562A is an improved version of the MIC2562,
offering lower ON-resistance and a V
the OFF mode. It is available in a 14-pin 0.150" SOIC.
Ordering Information
Note: see the logic table inside for a description of the differences
Typical Application
MIC2562A
Part Number
MIC2562A-0BM
MIC2562A-1BM
CC
between the logic options
Controller
Card Slot
System
PCMCIA
Supply
Power
output switches are self-biasing: no +12V supply
3.3V
12V
(opt)
5V
Temperature Range
–40 C to +85 C
–40 C to +85 C
PP
voltages (OFF, 0V, 3.3V, 5V, or
EN0
EN1
V CC5_EN
V CC3_EN
V PP IN
(opt)
CC
CC
MIC2562
and 250mA for V
V CC3 IN
14-pin Narrow SOIC
14-pin Narrow SOIC
pull-down clamp in
V CC5 IN
CC
Package
voltages (0V,
PP
CC
CC
and high
and V
and V
V PP1
V PP2
V CC
PP
PP
PP
Card Slot
PCMCIA
.
.
.
54
Applications
Features
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
Analog Power Switching
High Efficiency, Low Resistance Switches Require No
12V Bias Supply
No External Components Required
Output Current Limit and Overtemperature Shutdown
Open-Drain Flag for Error Condition Indication
Ultra Low Power Consumption
Complete PC Card/CardBus V
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 V
Over 1A V
Over 200mA V
Small 14-Pin SOIC Package
PCMCIA/CardBus Socket Power Controller
Pin Configuration
V
All three V
CC
V
V
PP
Both V
P
V
CC5_EN
CC3_EN
FLAG
3
4
n i
PP
OUT
Output Current
PP
IN
14 Pin S.O. Package
CC5
MIC2562A
*
*
M
CC
Output Current
* see table below
C I
IN pins must be connected.
OUT pins must be connected.
CC
2
E
E
5
0 -
N
N
6
2
3
4
5
6
7
and V
0
1
2
A
P
14
13
12
11
10
n i
CC
9
8
PP
A
s
and V
Voltages
s
V
V
g i
P
P
GND
V
V
V
V
V
V
P
P
n
1 -
_
_
CC5
CC
CC5
CC
CC3
CC
m
P
V
PP
G
C
e
OUT
OUT
OUT
C
M
n
IN
IN
IN
Switch Matrix
s t
July 1999
Micrel

Related parts for MIC2562A

MIC2562A Summary of contents

Page 1

... A. The device and PCMCIA port is protected by current limiting and overtemperature shutdown. Full cross- conduction lockout protects the system power supply. The MIC2562A is an improved version of the MIC2562, offering lower ON-resistance and a V the OFF mode available in a 14-pin 0.150" SOIC. ...

Page 2

... FLAG Pull-up Voltage ................................................. 7.5V Logic Input Voltages ..................................... –0.3V to +10V Output Current (each Output OUT V CC OUT ...................................... MIC2562 Control Logic I Limit / Thermal Shut Down Gate Drive Generator ...................................................... ............................ >200mA, Internally Limited >1A, Internally Limited (optional OUT V CC OUT MIC2562A Micrel 15V ...

Page 3

... Output Turn-Off Delay Time 14 t (Note Output Turn-OFF Fall Time 11 t (Note MIC2562A (Over operating temperature range with V CC3 Conditions 0 V < V < 5.5V IN Shutdown Mode 0 V 12V PP OUT OUT Select OUT Select V = 3.3V PP OUT I = – ...

Page 4

... Micrel Min Typ Max Units 1 1.5 A 100 150 m 70 100 m 500 3900 300 1500 s 750 3000 200 700 2500 s 200 1500 6000 2 2.8 8 100 240 1000 s 100 600 2000 0 100 A 0 0.3 4 — 5 3.0 3 — 12.0 14.5 V MIC2562A ...

Page 5

... V is not required for operation NOTE 8: V must be either high impedance or greater than or approximately equal to the highest voltage example, if both 3.3V and 5V are connected to the MIC2562A, V NOTE 9: A 10k pull-up resistor is connected between FLAG and 3. 12V ...

Page 6

... MIC2562A V CC Enable 3. Output FLAG Figure 2. MIC2562A V Timing Diagram specific control logic input. At time 5V. And MIC2562A-0 Control Logic Table V V CC5_EN CC3_EN ...

Page 7

... MIC2562A MIC2562A-1 Control Logic (compatible with Cirrus Logic CL-PD6710 & PD672x-series Controllers CC5_EN CC3_EN MIC2562A-2 Logic (Compatible with Databook Controllers) Pin CCSEL0( ...

Page 8

... CC3 trolled to prevent damage to sensitive loads and meet all PC Card Specification speed requirements. Supply Bypassing External capacitors are not required for operation. The MIC2562A is a switch and has no stability problems. For best results however, bypass V IN, V CC3 CC5 with 1 F capacitors to improve output ripple. As all internal ...

Page 9

... EN1 MIC2562 PCMCIA V CC5_EN Card Slot Controller V CC3_EN EN0 V PP OUT EN1 MIC2557 Figure 3. MIC2562A PC Card slot power control applica- tion with dual V (5V and 3.3V) and separate PP2 System Power Supply PCMCIA Card Slot Controller Figure 5. PC Card slot power control application without an available 3.3V V together ...

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