MIC2564A
Micrel
MIC2564A
Dual Serial PCMCIA/CardBus Power Controller
General Description
The MIC2564A is dual-slot PC Card PCMCIA (Personal Com-
puter Memory Card International Association) and CardBus
power controller. It is a sophisticated power switching matrix
that controls V
CC
and V
PP
voltages to two PC Card slots. The
MIC2564A is used in conjunction with a serial-data output logic
controller using the standard three-wire serial control data
format.
When connected to 3.3V, 5V, and 12V system power supplies,
the MIC2564A can switch its V
CC
outputs between 0V, 3.3V,
5.0V, and high-impedance states and V
PP
outputs between 0V,
3.3V, 5V, 12V, and high-impedance states. The V
CC
outputs
will supply a minimum of 1A current to the socket and the V
PP
outputs will supply a minimum of 120mA to the socket. Voltage
rise and fall times are well controlled. The MIC2564A also
features an efficient standby (sleep) mode at 0.3mA typical
quiescent current.
12V and 5V supplies are not required for MIC2564A operation
making it possible to omit one or both supplies when they are not
needed by the system. An internal charge pump supplies the
internal bias voltages required for high-performance switching.
The MIC2564A is protected by overtemperature shutdown, and
protects itself and the system with current limiting and cross-
conduction lockout.
The MIC2564A is available in 24-pin SSOP, 24-pin TSSOP,
and an environmentally friendly (lead-free) 24-pin TSSOP.
All support documentation can be found on Micrel’s web site
at www.micrel.com.
Features
•
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•
•
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Standard 3-wire serial control data input
Controls two card slots from one surface mount device
High-efficiency, low-resistance switches
12V supply optional (not required by MIC2564A)
Current limit and overtemperature shutdown
Ultra-low 1mA-typical standby power consumption
Cross-conduction lockout (no switching transients)
Break-before-make switching
1A minimum V
CC
output per slot
Independent V
CC
and V
PP
voltage output (MIC2564A-1)
120mA minimum V
PP
output current per slot
Lead-free 24-pin surface-mount TSSOP package
UL recognized, file #179633
PC Card and CardBus power control
Zoom Video port power control
Wireless communications
Bar code data collection systems
Docking stations (portable and desktop)
Power supply management
Applications
Typical Application
Slot A
Address and data lines
between logic controller and
PCMCIA cards not shown.
System Power Supply
(
OPTIONAL
)
(
OPTIONAL
)
12V
5V
3.3V
V
PP1
V
PP2
PCMCIA
Card
A
V
CC
System Reset
V
PP
IN
(
OPTIONAL
)
Dual-Slot
Logic Controller
PCMCIA,
CardBus,
or Zoom Video
RST#
Serial
Control
Bus
MIC2564A
Power
Controller
V
CC3
IN
V
CC5
IN
(
OPTIONAL
)
A V
PP
OUT
A V
CC
OUT
B V
PP
OUT
GND
B V
CC
OUT
V
PP1
V
PP2
PCMCIA
Card
B
Slot B
V
CC
Motherboard
UL Recognized Component
PCMCIA Card Power Management Application
Micrel, Inc. • 1849 Fortune Drive • San Jose, CA 95131 • USA • tel + 1 (408) 944-0800 • fax + 1 (408) 944-0970 • http://www.micrel.com
March 2004
1
M0250-031104
MIC2564A
Micrel
Ordering Information
Part Number
MIC2564A-0BSM
MIC2564A-1BSM*
MIC2564A-0BTS
MIC2564A-1BTS*
MIC2564A-0YTS
MIC2564A-1YTS*
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
24-pin SSOP
24-pin SSOP
24-pin TSSOP
24-pin TSSOP
24-pin TSSOP
24-pin TSSOP
Lead-Finish
Standard
Standard
Standard
Standard
Lead-free
Lead-free
* -1 option: independent V
PP
OUT and V
CC
OUT programming
Pin Configuration
VCC5 IN 1
A VCC OUT 2
VCC5 IN 3
A FLAG 4
SDA 5
SCL 6
RST# 7
SLA 8
B FLAG 9
VCC5 IN 10
B VCC OUT 11
VCC5 IN 12
24 A VCC OUT
23 VCC3 IN
22 A VCC OUT
21 GND
20 A VPP OUT
19 VPP IN
18 VPP IN
17 B VPP OUT
16 GND
15 B VCC OUT
14 VCC3 IN
13 B VCC OUT
24-lead SSOP (SM)
24-lead TSSOP (TS)
Pin Description
Pin Number
1, 3, 10, 12
2, 22, 24
4
5
6
7
8
9
11, 13, 15
14, 23
16, 21
17
18, 19
20
M0250-031104
Pin Name
VCC5 IN
A VCC OUT
A FLAG
SDA
SCL
RST#
SLA
B FLAG
B VCC OUT
VCC3 IN
GND
B VPP OUT
VPP IN
A VPP OUT
Pin Function
5V Supply Input: Optional system power supply connection. Required only
for 5V V
CC
and V
PP
output voltage.
Slot A V
CC
Output: Pins 2, 22 and 24 must be externally connected
together.
Channel A V
CC
and V
PP
Output Monitor (Output): Low on error condition.
Serial Data (Input).
Serial Clock (Input).
System Reset (Input): Active low signal deactivates the MIC2564A, clearing
the serial registers and forcing the four power outputs to 0V (GND).
Serial Data Latch (Input).
Channel B V
CC
and V
PP
Output Monitor (Output): Low on error condition.
Slot B V
CC
Output: Pins 11, 13 and 15 must be externally connected
together.
3.3V Supply Input: Required system power supply connection. Powers 3.3V
V
CC
and V
PP
outputs and all internal circuitry.
Ground.
Slot B V
PP
Output.
12V Supply Input: Optional system power supply connection. Required only
for 12V V
PP
output voltage.
Slot A V
PP
Output.
2
March 2004
MIC2564A
Micrel
Absolute Maximum Ratings
(1)
V
PP
IN ...................................................................... +13.6V
V
CC3
IN ....................................................................... +6.0V
V
CC5
IN ....................................................................... +6.0V
V
SCL
, V
SDA
, V
SLA
, V
RST# ....................................
–0.3V to +6.0V
V
A FLAG
, V
B FLAG
....................................................... +6.0V
A or B V
PP
OUT ....................... >120mA, Internally Limited
A or B V
CC
OUT .............................. >1A, Internally Limited
Power Dissipation (P
D
) at T
A
£
25∞C ....... Internally Limited
Storage Temperature ............................... –65∞C to +150∞C
Lead Temperature (5 sec.) ...................................... +260∞C
ESD Rating
(3)
Operating Ratings
(2)
V
PP
IN ............................................................ 0V to +13.2V
V
CC3
IN ........................................................ +3.0V to +5.5V
V
CC5
IN ............................................................. 0V to +5.5V
V
SCL
, V
SDA
, V
SLA
, V
RST#
................................. 0V to +5.5V
A or B V
PP
OUT ................................................ 0 to 120mA
A or B V
CC
OUT ....................................................... 0 to 1A
Clock Frequency ................................................. 0 to 2MHz
Ambient Temperature (T
A
) ......................... –40∞C to +85∞C
Junction Temperature (T
J
) ...................................... +125∞C
Package Thermal Resistance
SSOP
(q
JA
) ...................................................... 90∞C/W
TSSOP
(q
JA
) .................................................... 83∞C/W
Electrical Characteristics
(4)
V
CC3
IN = 3.3V, V
CC5
IN = 5.0V, V
PP
IN = 12V; T
A
= 25∞C,
bold
indicates –40∞C
£
T
A
£
+85∞C; unless noted.
Symbol
V
PP
Output
I
PP
OUT
Hi-Z
I
PPSC
R
O
High-Impedance Output
Leakage Current
Short Circuit Current Limit
Switch Resistance
Shutdown mode
V
PP
OUT = 0V
V
PP
OUT = 0V, normal mode
(5)
V
PP
OUT = 5V selected,
I
PP
OUT = –100mA (sourcing)
V
PP
OUT = 3.3V selected,
I
PP
OUT = –100mA (sourcing)
V
PP
OUT = 12V selected, V
PP
IN = 12V,
I
PP
OUT = –100 mA (sourcing)
V
PP
OUT = 0V [ground] selected,
I
PP
OUT = 50mA (sinking)
V
PP
Switching Time
(See Figure 3)
t
1
t
2
t
3
t
4
t
5
t
6
t
7
t
8
t
9
t
10
t
11
t
12
t
13
Notes:
1. Exceeding the absolute maximum rating may damage the device.
2. The device is not guaranteed to function outside its operating rating.
3. Devices are ESD sensitive. Handling precautions recommended.
4. Specification for packaged product only.
5. Output enabled into short circuit.
6. Measurement is from the 50% point of the SLA rising edge.
Parameter
Conditions
Min
Typ
Max
Units
mA
mA
W
W
W
W
1
120
260
1.6
1.3
1.3
2000
10
400
5
5
2.3
5000
Output Turn-On Delay
(6)
V
PP
OUT = Hi-Z to 10% of 3.3V, R
L
= 100W
V
PP
OUT = Hi-Z to 10% of 5V, R
L
= 100W
V
PP
OUT = Hi-Z to 10% of 12, RL = 100W
1
1
50
10
10
10
10
10
10
10
100
250
100
100
100
100
250
1
1
1
100
100
250
500
1000
500
500
500
500
1000
500
500
500
ms
ms
ms
ms
ms
ms
ms
ms
ms
ms
ms
ms
ms
Output Rise Time
V
PP
OUT = 10% to 90% of 3.3, R
L
= 100W
V
PP
OUT = 10% to 90% of 5, R
L
= 100W
V
PP
OUT = 10% to 90% of 12, R
L
= 100W
Output Transition Time
(6)
V
PP
OUT = 3.3V to 90% of 12V, R
L
= 100W
V
PP
OUT = 5V to 90% of 12, R
L
= 100W
V
PP
OUT = 12V to 90% of 3.3, R
L
= 100W
V
PP
OUT = 12V to 90% of 5, R
L
= 100W
Output Turn-Off Fall Time
V
PP
OUT = 90% to 10% of 3.3, R
L
= 100W
V
PP
OUT = 90% to 10% of 5, R
L
= 100W
V
PP
OUT = 90% to 10% of 12, R
L
= 100W
March 2004
3
M0250-031104
MIC2564A
Micrel
Electrical Characteristics
(7)
Symbol
t
14
t
15
t
16
V
CC
Output
I
CC
OUT Hi-Z High-Impedance Output
Leakage Current
I
CCSC
R
O
Short Circuit Current Limit
Switch Resistance
Shutdown mode, V
CC
OUT = 0V
V
CC
OUT = 0, normal mode,
V
CC3
or V
CC5
switches
(9)
V
CC
OUT = 3.3V selected,
I
CC
OUT = –1A (sourcing)
V
CC
OUT = 5V selected,
I
CC
OUT = –1A (sourcing)
V
CC
OUT = 0V [ground] selected,
I
CC
OUT = 0.1mA (sinking)
V
CC
Switching Time
(See Figure 4)
t
17
t
18
t
19
t
20
t
21
t
22
t
23
t
24
Power Supply
I
CC3
I
CC5
I
PP
IN
V
CC3
V
CC5
V
PP
Notes:
7. Specification for packaged product only.
8. Measurement is from the 50% point of the SLA rising edge.
9. Output enabled into short circuit.
10. Measurement is from the Hi-Z- or 0V-state command to the beginning of the slope. Measurement does not apply when device is in current limit or
thermal shutdown.
11. V
CC3
IN powers all internal logic, bias, and drive circuitry, and is required for operation.
12. V
PP
and V
CC5
IN are not required for operation.
13. 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 MIC2564A, V
PP
IN must be either 5V, 12V, or high-impedance.
Parameter
Output Turn-Off Delay Time
(8, 11)
Conditions
V
PP
OUT = 3.3V to Hi-Z, R
L
= 100W
V
PP
OUT = 5V to Hi-Z, R
L
= 100W
V
PP
OUT = 12V to Hi-Z, R
L
= 100W
Min
Typ
1
1
1
Max
50
50
50
Units
ms
ms
ms
mA
A
mW
mW
W
1
1.0
2.0
120
85
2000
20
3.0
150
120
3900
Output Turn-On Delay Time
(8)
V
CC
OUT = 0V to 10% of 3.3, R
L
= 10W
V
CC
OUT = 0V to 10% of 5.0, R
L
= 10W
V
CC
OUT = 10% to 90% of 3.3V, R
L
= 10W
V
CC
OUT = 10% to 90% of 5, R
L
= 10W
V
CC
OUT = 90% to 10% of 3.3, R
L
= 10W
V
CC
OUT = 90% to 10% of 5.0, R
L
= 10W
V
CC
OUT = 3.3V to 90% of 3.3V, R
L
= 10W
V
CC
OUT = 5V to 90% of 5V, R
L
= 10W
750
1000
100
100
250
500
1200
2200
550
400
400
400
500
1000
5000
5000
1000
2000
2000
2000
ms
ms
ms
ms
ms
ms
ms
ms
mA
mA
mA
mA
mA
mA
V
V
V
Output Rise Time
Output Fall Time
Output Turn-Off Delay
(8, 10)
V
CC3
IN Supply Current (3.3V)
(11)
V
CC5
IN Supply Current (5V)
(12)
V
PP
IN Supply Current (12V)
(12)
Operating Input Voltage (3.3V)
Operating Input Voltage (5V)
Operating Input Voltage (12V)
V
CC
OUT = 5V or 3.3V, I
CC
OUT = 0
V
CC
OUT = Hi-Z (sleep mode)
V
CC
OUT = 5V or 3.3V, I
CC
OUT = 0
V
CC
OUT = Hi-Z (sleep mode)
V
PP
OUT = 0V, 3.3V, 5V, or Hi-Z; I
PP
OUT = 0
V
PP
OUT = V
PP
IN
Note 11
Note 12
Notes 12, 13
3.0
120
5
25
0.2
1
4
3.3
5.0
12
200
10
50
10
10
50
5.5
5.5
13.2
M0250-031104
4
March 2004
MIC2564A
Symbol
Parameter
Conditions
Min
Typ
Max
Micrel
Units
∞C
5.5
0.3V
CC3
IN
0.2
1
V
V
mA
mA
ns
ns
ns
ns
ns
ns
ns
ns
100
100
ns
ns
Thermal Shutdown
T
SD
V
IH
V
IL
I
IN
Flag
I
FLG
t
HD:DAT
t
SU:DAT
t
SU:SLA
t
SU:RST#
t
W
Flag Leakage Current
V
FLG
= 5V
75
Data before clock
75
50
RST# before data
Clock (t
W:CLK
)
Latch (t
W:SLA
)
Reset (t
W:RST
)
Data (t
W:DA
)
t
R
t
F
Notes:
14. Guaranteed by design not production tested.
15. Guaranteed by characterization but not production tested.
Thermal Shutdown Temperature
145
Serial Interface DC Specifications
Input Voltage: SDA, SCL, SLA pins
Input Voltage: SDA, SCL, SLA pins
Input Current
0V < V
IN
< 5.5V
0.7V
CC3
IN
–0.3
–1
1
Serial Interface Timing Requirements
(See Figures 1 and 2)
(14)
SDA Hold Time
SDA Setup Time
Latch Setup Time
Reset to Data Setup Time
Minimum Pulse Width
50
50
100
50
50
0
0
SCL Rise Time
SCL Fall Time
f = 32kHz
(15)
f = 32kHz
(15)
Serial Control Timing Diagram
t
W:DAT
RST#
t
SU:RST#
SDA
t
SU:DAT
SLA
t
W:CLK
t
HD:DAT
t
SU:SLA
t
W:SLA
D8
D7
D6
D5
D4
D3
D2
D1
D0
SCL
Figure 1. Serial Control Timing Diagram
The MIC2564A uses a three-wire serial interface to control V
CC
and V
PP
outputs for both sections A and B. The three control
lines have thresholds compatible with both 3.3V and 5V logic families. Data (SDA) is clocked in on the rising clock edge. The
clock signal may be continuous or it may halt after all data is clocked in.
t
r
SCL
90%
10%
90%
10%
t
f
Figure 2. SCL Rise and Fall Times
March 2004
5
M0250-031104
嵌入式系统
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