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PDF MIC2562A-0BM Data sheet ( Hoja de datos )
| Número de pieza | MIC2562A-0BM | |
| Descripción | PCMCIA/CardBus Socket Power Controller | |
| Fabricantes | Micrel Semiconductor | |
| Logotipo |  |
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MIC2562A
MIC2562A
Micrel
PCMCIA/CardBus Socket Power Controller
General Description
The MIC2562A PCMCIA (Personal Computer Memory Card
International Association) and CardBus Power Controller
handles all PC Card slot power supply pins, both VCC and VPP.
The MIC2562A 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 MIC2562A 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 MIC2562A provides power management capability con-
trolled 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 MIC2562A is designed for efficient operation. In standby
(sleep) mode the device draws very little quiescent current,
typically 0.3µA. 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 VCC pull-down clamp in
the OFF mode. It is available in a 14-pin 0.150" SOIC.
Ordering Information
Part Number Temperature Range
Package
Applications
• 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
Features
• 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 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
•
•
Over 200mA
Small 14-Pin
VSPOPICOPuatpcuktaCgeurrent
MIC2562A-0BM
MIC2562A-1BM
–40°C to +85°C
–40°C to +85°C
14-pin Narrow SOIC
14-pin Narrow SOIC
Pin Configuration
Note: see the logic table inside for a description of the differences
between the logic options
Typical Application
5V
System
Power 3.3V
Supply
12V
(opt)
VPPIN VCC3IN VCC5IN
(opt)
EN0
EN1
MIC2562
VPP1
VPP2 PCMCIA
Card Slot
VCC5_EN
14 GND
VCC3_EN
2 13
VCC5 IN
* 3 12 VCC OUT
* 4 11 VCC5 IN
FLAG
5 10
VCC OUT
VPP IN 6 9 VCC3 IN
VPP OUT 7 8 VCC OUT
* see table below
14 Pin S.O. Package
Both VCC5 IN pins must be connected.
All three VCC OUT pins must be connected.
PCMCIA
Card Slot
Controller
VCC5_EN
VCC3_EN
VCC
MIC2562A Pin Assignments
Pin -0
-1
3 EN0 VPP_VCC
4 EN1 VPP_PGM
MIC2562A
54
July 1999
1 page  
MIC2562A
Electrical Characteristics (continued)
Symbol
Parameter
Conditions
THERMAL SHUTDOWN
TSD Thermal Shutdown Temperature
FLAG OUTPUT
VO OK
FLAG Threshold Voltage
(Note 9)
FLAG High (OK) Threshold voltage
Micrel
Min Typ Max Units
130 °C
VCC – 1
VPP – 1
V
NOTE 1:
NOTE 2:
NOTE 3:
NOTE 4:
NOTE 5:
NOTE 6:
NOTE 7:
NOTE 8:
NOTE 9:
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.
R
L
=
100Ω
connected
to
ground.
RL = 10Ω connected to ground.
Delay from commanding Hi Z or 0V to beginning slope. Does not apply to current limit or overtemperature shutdown
conditions.
The MIC2562A uses VCC3 IN for operation. For single 5V supply systems, connect 5V to both VCC3 IN and VCC5IN. See Applica-
tions 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 MIC2562A, VPP IN must be either 5V, 12V, or high impedance.
A 10kΩ pull-up resistor is connected between FLAG and VCC3 IN.
AB
VPP
Enable
0
VPP to 3.3V VPP to 12V
C DE
VPP to 3.3V
VPP
OFF
VPP to 5V
F
VPP to 12V
t7 t9
12V
t8
G
VPP to 5V
t10
HJ
K
VPP OFF VPP to 12V
VPP OFF
t13
t6 t16
VPP
Output
t4
t1
5V
3.3V
t2
t11 t5
t14
t3
t15
t12
0
FLAG
Figure 1. MIC2562A 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, V is set to 12V. At G, V is programmed to 5V. At H, V is disabled. At J, V is set to
PP PP
PP PP
12V. And at K, VPP is again disabled. RL = 100Ω for all measurements. Load capacitance is negligible.
MIC2562A
58
July 1999
5 Page | ||
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| PDF Descargar | [ Datasheet MIC2562A-0BM.PDF ] | |
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