MIC2562A
Micrel
MIC2562A
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 V
CC
and
V
PP
. The MIC2562A switches between the three V
CC
volt-
ages (0V, 3.3V and 5.0V) and the V
PP
voltages (OFF, 0V,
3.3V, 5V or 12.0V) required by PC Cards. The MIC2562A
switches voltages from the system power supply to V
CC
and
V
PP
. Output voltage is selected by two digital inputs each and
output current ranges up to 1A for V
CC
and 250mA for V
PP
.
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
PP
and high
current V
CC
output switches are self-biasing:
no +12V sup-
ply 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 during
switching operations.
The MIC2562A is an improved version of the MIC2562,
offering lower on-resistance and a V
CC
pull-down clamp in
the OFF mode. It is available in a 14-pin (0.150") SOIC, and
the -1 logic option is also available in 16-pin TSSOP
All support documentation can be found on Micrel’s web
site at www.micrel.com.
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 V
CC
and V
PP
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 V
CC
and V
PP
voltages
• Over 1A V
CC
output current
• Over 200mA V
PP
output current
• Pb-free SOIC packages
• UL recognized, file #179633
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
Typical Application
5V
System
Power 3.3V
Supply
12V
(opt)
VPP IN VCC3 IN VCC5 IN
(opt)
VPP1
VPP2
PCMCIA
Card Slot
EN0
EN1
MIC2562
VCC
PCMCIA
Card Slot
Controller
VCC5_EN
VCC3_EN
UL Recognized Component
Micrel, Inc. • 1849 Fortune Drive • San Jose, CA 95131 • USA • tel + 1 (408) 944-0800 • fax + 1 (408) 944-0970 • http://www.micrel.com
June 2004
1
M9999-062204
MIC2562A
Micrel
Ordering Information
(1)
Part Number
MIC2562A-0BM
MIC2562A-1BM
MIC2562A-0YM
MIC2562A-1YM
MIC2562A-1BTS
MIC2562A-1YTS
Note.
1. See “MIC2562A-0 Control Logic” table for a description of the differences between the
logic options.
Temperature Range
–40°C to +85°C
–40°C to +85°C
–40°C to +85°C
–40°C to +85°C
–40°C to +85°C
–40°C to +85°C
Package
14-pin Narrow SOIC
14-pin Narrow SOIC
14-pin Narrow SOIC
14-pin Narrow SOIC
16-pin TSSOP
16-pin TSSOP
Pb-Free
X
X
X
Pin Configuration
VCC5_EN
1
2
3
4
5
6
7
8
* See table below
16 GND
15 VCC5 IN
14 VCC OUT
13 VCC5 IN
12 VCC OUT
11 VCC3 IN
10 NC
9
VCC OUT
VCC5_EN
VCC3_EN
*
*
/FLAG
VPP IN
VPP OUT
1
2
3
4
5
6
7
14 GND
13 VCC5 IN
12 VCC OUT
11 VCC5 IN
10 VCC OUT
9
8
VCC3 IN
VCC OUT
VCC3_EN
*
*
/FLAG
VPP IN
NC
VPP OUT
* See table below
14-Pin SOIC (M)
Both V
CC5
IN pins must be connected.
All three V
CC
OUT pins must be connected.
16-Pin TSSOP (TS)
Both V
CC5
IN pins must be connected.
All three V
CC
OUT pins must be connected.
Pin
3
4
MIC2562A Pin Assignments
-0
-1
V
PP_VCC
EN0
V
PP_PGM
EN1
Pin
3
4
MIC2562A Pin Assignments
-0
-1
V
PP_VCC
EN0
V
PP_PGM
EN1
June 2004
2
M9999-062204
MIC2562A
Micrel
Absolute Maximum Ratings
(1)
Supply Voltage, V
PP
IN ............................................... +15V
V
CC3
IN ................................................................... +7.5V
V
CC5
IN ................................................................... +7.5V
FLAG Pull-up Voltage ................................................ +7.5V
Logic Input Voltages ..................................... –0.3V to +10V
Output Current (each output)
V
PP
OUT ............................... >200mA, Internally Limited
V
CC
OUT ..................................... >1A, Internally Limited
Power Dissipation (P
D
), T
A
≤
25°C .......... Internally Limited
SOIC ................................................................... 800mW
Lead Temperature (5 sec.) ........................................ 260°C
Storage Temperature (T
S
) ....................... –65°C to +150°C
Operating Ratings
(2)
Ambient Temperature (T
A
) ......................... –40°C to +85°C
Operating Temperature (Die) .................................... 125°C
Package Thermal Resistance (θ
JA
)
SOIC ................................................................. 120°C/W
TSSOP ....................................... (4 layer board) 83°C/W
Electrical Characteristics
(3)
Over operating temperature range with V
CC3
IN = 3.3V, V
CC5
IN = 5.0V, V
PP
IN = 12V; T
A
= 25°C,
bold
values indicate –40°C
≤
T
A
≤
+85°C; unless noted.
Symbol
Digital Inputs
V
IH
V
IL
I
IN
V
PP
Output
I
PP
OUT
Hi-Z
I
PPSC
R
O
Parameter
Condition
Min
Typ
Max
Units
Logic 1 Input Voltage
Logic 0 Input Voltage
Input Current
0V < V
IN
< 5.5V
Shutdown Mode
0
≤
V
PP
OUT
≤
12V
V
PP
OUT = 0
Select V
PP
OUT = 5V
Select V
PP
OUT = 3.3V
I
PP
OUT = –100mA (Sourcing)
V
PP
IN = 12V
I
PP
OUT = –100mA (Sourcing)
Select V
PP
OUT = clamped to ground
I
PP
OUT = 50µA (Sinking)
V
PP
OUT = Hi-Z to 10% of 3.3V
V
PP
OUT = Hi-Z to 10% of 5V
V
PP
OUT = Hi-Z to 10% of 12V
Output Rise Time
(4)
V
PP
OUT = 10% to 90% of 3.3V
V
PP
OUT = 10% to 90% of 5V
V
PP
OUT = 10% to 90% of 12V
Output Transition Timing
(4)
V
PP
OUT = 3.3V to 90% of 12V
V
PP
OUT = 5V to 90% of 12V
V
PP
OUT = 12V to 90% of 3.3V
V
PP
OUT = 12V to 90% of 5V
Output Turn-Off Delay Time
(4)
V
PP
OUT = 3.3V to Hi-Z
V
PP
OUT = 5V to Hi-Z
V
PP
OUT = 12V to Hi-Z
2.2
–0.3
7.5
0.8
±1
1
10
V
V
µA
µA
A
High Impedance Output
Leakage Current
Short Circuit Current Limit
Switch Resistance
0.2
0.4
1.8
3.3
0.6
2500
2.5
5
1
3900
Ω
Ω
Ω
Ω
R
O
R
O
Switch Resistance,
Select V
PP
OUT = 12V
Switch Resistance,
Select V
PP
OUT = 0V
Output Turn-On Delay
(4)
V
PP
Switching Time
(See Figure 1)
t
1
t
2
t
3
t
4
t
5
t
6
t
7
t
8
t
9
t
10
t
14
t
15
t
16
5
10
70
100
100
100
100
100
100
100
200
300
225
250
200
200
350
200
200
200
50
50
250
800
1000
800
1000
800
800
1200
1000
1000
1000
µs
µs
µs
µs
µs
µs
µs
µs
µs
µs
ns
ns
ns
Notes:
1. Exceeding the absolute maximum rating may damage the device.
2. The device is not guaranteed to function outside its operating rating. Devices are ESD sensitive. Handling precautions recommended.
3. Specification for packaged product only.
4. R
L
= 100Ω connected to ground.
June 2004
3
M9999-062204
MIC2562A
Symbol
Parameter
Output Turn-Off Fall Time
(4)
Condition
Min
Typ
Max
Micrel
Units
V
PP
Switching Time
(See Figure 1) Continued
t
11
t
12
t
13
V
CC
Output
I
CCSC
R
O
Short Circuit Current Limit
Switch Resistance
V
CC
OUT = 0
Select V
CC
OUT = 3.3V
I
CC
OUT = –1A (Sourcing)
Select V
CC
OUT = 5V
I
CC
OUT = –1A (Sourcing)
Select V
CC
OUT = clamped to ground
I
CC
OUT = 0.1mA (Sinking)
V
CC
Switching Time
(See Figure 2)
t
1
t
2
t
3
t
4
t
7
t
8
t
5
t
6
Power Supply
I
CC5
I
CC3
I
PP
IN
V
CC5
V
CC3
V
PP
IN
T
SD
FLAG Output
V
O
OK
FLAG Threshold Voltage
(10)
FLAG High (OK) Threshold Voltage
V
CC
–1
V
PP
–1
V
V
CC5
IN Supply Current (5V)
V
CC3
IN Supply Current (3.3V)
(7)
V
PP
IN Supply Current (12V)
(8)
Operating Input Voltage (5V)
Operating Input Voltage (3.3V)
Operating Input Voltage (12V)
V
CC
OUT = 5V or 3.3V, I
CC
OUT = 0
V
CC
OUT = 0V (Sleep Mode)
V
CC
OUT = 5V or 3.3V, I
CC
OUT = 0
V
CC
OUT = 0V (Sleep Mode)
V
PP
OUT = 3.3V or 5V. I
PP
OUT = 0
V
PP
OUT = Hi-Z, 0 or V
PP
V
CC5
IN not required for operation
Note 7
V
PP
IN not required for operation
(9)
3.0
8
0.2
40
0.1
0.3
0.3
5.0
3.3
12.0
50
10
100
10
4
4
6
6
14.5
µA
µA
µA
µA
µA
µA
V
V
V
°C
Output Fall Time
(5)
Output Turn-Off Delay
(5, 6)
Output Rise Time
(5)
Output Turn-On Delay Time
(5)
V
CC
OUT = 0V to 10% of 3.3V
V
CC
OUT = 0V to 10% of 5.0V
V
CC
OUT = 10% to 90% of 3.3V
V
CC
OUT = 10% to 90% of 5V
V
CC
OUT = 3.3V
V
CC
OUT = 5V
V
CC
OUT = 90% to 10% of 3.3V
V
CC
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
µs
µs
µs
µs
ms
ms
µs
µs
1
1.5
100
70
500
150
100
3900
A
mΩ
mΩ
Ω
V
PP
OUT = 90% to 10% of 3.3V
V
PP
OUT = 90% to 10% of 5V
V
PP
OUT = 90% to 10% of 12V
50
50
300
1000
1000
2000
ns
ns
ns
Thermal Shutdown
Thermal Shutdown Temperature
130
Notes:
4. R
L
= 100Ω connected to ground.
5. R
L
= 10Ω connected to ground.
6. Delay from commanding Hi-Z or 0V to beginning slope. Does not apply to current limit or overtemperature shutdown conditions.
7. The MIC2562A uses V
CC3
IN for operation. For single 5V supply systems, connect 5V to both V
CC3
IN and V
CC5
IN. See “Applications Information”
section for further details.
8. V
PP
IN is not required for operation.
9. V
PP
IN must be either high impedance or greater than or approximately equal to the highest voltage V
CC
in the system. For example, if both 3.3V
and 5V are connected to the MIC2562A, V
PP
IN must be either 5V, 12V, or high impedance.
10. A 10kΩ pull-up resistor is connected between FLAG and V
CC3
IN.
June 2004
4
M9999-062204
MIC2562A
Micrel
A
V
PP
Enable
0
V
PP
to 3.3V
B
V
PP
to 12V
C
V
PP
to 3.3V
D
V
PP
OFF
E
V
PP
to 5V
F
V
PP
to 12V
G
V
PP
to 5V
H
V
PP
OFF
J
VPP
to 12V
K
V
PP
OFF
t
13
t
7
12V
t
9
t
8
t
10
t
6
t
16
V
PP
Output
t
1
5V
3.3V
t
4
t
11
t
2
t
5
t
15
t
12
t
3
t
14
0
/FLAG
Figure 1. MIC2562A V
PP
Timing Diagram
V
PP
Enable is shown generically: refer to the timing tables. At time “A,” V
PP
= 3.3V is selected. At “B,” V
PP
is set to 12V. At
“C,” V
PP
= 3.3V (from 12V). At “D,” V
PP
is disabled. At “E,” V
PP
is programmed to 5V. At “F,” V
PP
is set to 12V. At “G,” V
PP
is
programmed to 5V. At “H,” V
PP
is disabled. At “J,” V
PP
is set to 12V. And at “K,” V
PP
is again disabled. R
L
= 100Ω for all
measurements. Load capacitance is negligible.
A
VCC
Enable
0
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
/FLAG
0
Figure 2. MIC2562A V
CC
Timing Diagram
V
CC
Enable is shown generically: refer to the timing tables for specific control logic input. At time “A,” V
CC
is programmed to
3.3V. At “B,” V
CC
is disabled. At “C,” V
CC
is programmed to 5V. And at “D,” V
CC
is disabled. R
L
= 10Ω. FLAG pull-up resistor
is 10kΩ to V
CC3
IN.
June 2004
5
M9999-062204
嵌入式系统
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