MIC2560
PCMCIA Card Socket V
CC
and V
PP
Switching Matrix
General Description
The MIC2560 V
CC
and V
PP
Matrix controls PCMCIA (Per-
sonal Computer Memory Card International Association)
memory card power supply pins, both V
CC
and V
PP
. The
MIC2560 switches voltages from the system power supply
to V
CC
and V
PP
. The MIC2560 switches between the three
V
CC
voltages (OFF, 3.3V and 5.0V) and the V
PP
voltages
(OFF, 0V, 3.3V, 5V, or 12.0V) required by PCMCIA cards.
Output voltage is selected by two digital inputs for each
output and output current ranges up to 1A for V
CC
and
200mA for V
PP
.
The MIC2560 provides power management capability
under the control of the PC Card controller and features
over current and thermal protection of the power outputs,
zero current “sleep” mode, suspend mode, low power
dynamic mode, and on-off control of the PCMCIA socket
power.
The MIC2560 is designed for efficient operation. In stand-
by (sleep) mode the device draws very little quiescent
current, typically 0.01µA. The device and PCMCIA ports
are protected by current limiting and overtemperature
shutdown. Full cross-conduction lockout protects the
system power supply.
Data sheets and support documentation can be found on
Micrel’s web site at www.micrel.com.
Features
•
Complete PCMCIA VCC and VPP switch matrix in a
single IC
•
No external components required
•
Logic compatible with industry standard PCMCIA
controllers
•
No voltage overshoot or switching transients
•
Break-before-make switching
•
Output current limit and overtemperature shutdown
•
Digital flag for error condition indication
•
Ultra-low power consumption
•
Digital selection of VCC and VPP voltages
•
Over 1A VCC output current
•
200mA VPP (12V) output current
•
Options for direct compatibility with industry standard
PCMCIA controllers
•
16-Pin SOIC package
Applications
•
•
•
•
•
•
•
•
•
•
PCMCIA power supply pin voltage switch
Font cards for printers and scanners
Data-collection systems
Machine control data input systems
Wireless communications
Bar code data collection systems
Instrumentation configuration/data-logging
Docking stations (portable and desktop)
Power supply management
Power analog switching
Typical Application
Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com
September 2006
1
M9999-092106
Micrel, Inc.
MIC2560
Absolute Maximum Ratings
(1, 2)
Power Dissipation, T
AMBIENT
≤
25°C...........Internally
Limited
SOIC. .................................................................800mW
Derating Factors (To Ambient)
SOIC .................................................................4mW/°C
Storage Temperature (T
s
) .........................–65°C to +150°C
Maximum Operating Temperature (Die) .................... 125°C
Operating Temperature (Ambient) ..............–40°C to +70°C
Lead Temperature (soldering, 5sec.)......................... 260°C
Supply Voltage (V
PP IN
) ...................................................15V
V
CC3
IN ................................................................V
CC5
IN
V
CC5
IN ....................................................................7.5V
Logic Input Voltages...................................... –0.3V to +15V
Output Current (each Output)
V
PP OUT
.................................
>200mA, Internally Limited
V
PP OUT
........................................
>1A, Internally Limited
V
PP OUT
, Suspend Mode ......................................600mA
Electrical Characteristics
(3)
(Over operating temperature range with V
CC3 IN
= 3.3V, V
CC5 IN
= 5.0V, V
PP IN
= 12V unless otherwise specified.)
Symbol
Input
V
IH
V
IL
I
IN
I
PP OUT
Hi-Z
I
PPSC
R
O
Logic 1 Input Voltage
Logic 0 Input Voltage
Input Current
High-Impedance Output
Leakage Current
Short Circuit Current Limit
Switch Resistance,
I
PP OUT
= –100mA (sourcing)
0V < V
IN
< 5.5V
Shutdown Mode
1V
≤
V
PP OUT
≤
12V
V
PP OUT
= 0
select V
PP OUT
= 12V
select V
PP OUT
= 5V
select V
PP OUT
= 3.3V
Switch Resistance,
I
PP OUT
= 50µA
V
PP
Switching Time
t
1
t
2
t
3
t
4
I
CC OUT
Hi-Z
I
CCSC
R
O
Output Turn-On Rise Time
Output Turn-On Rise Time
Output Turn-On Rise Time
Output Rise Time
High Impedance Output
Leakage Current, Note 3
Short Circuit Current Limit
Switch Resistance,
V
CC OUT
= 5.0V
Switch Resistance,
V
CC OUT
= 3.3V
V
CC
Switching Time
t
1
t
2
t
3
t
4
Rise Time
Rise Time
Fall Time
Rise Time
V
CC OUT
= 0V to 3.3V, IOUT = 1A
V
CC OUT
= 0V to 5.0V, IOUT = 1A
V
CC OUT
= 5.0V to 3.3V
V
CC OUT
= hi-Z to 5V
100
100
600
500
300
400
µs
µs
µs
µs
V
PP OUT
= hi-Z to 5V
V
PP OUT
= hi-Z to 3.3V
V
PP OUT
= hi-Z to 12V
V
PP OUT
= 3.3V or 5V to 12V
1V
≤
V
CC OUT
≤
5V
V
CC OUT
= 0
I
CC OUT
= –1000mA (sourcing)
I
CC OUT
= –1000mA (sourcing)
1
50
40
300
300
1
2
70
40
100
66
10
µs
µs
µs
µs
µA
A
mΩ
mΩ
select V
PP OUT
= clamped to ground
1
0.2
0.55
0.7
2
0.75
1
1
3
2
2.2
–0.3
15
0.8
±1
10
V
V
µA
µA
A
Ω
Ω
Ω
kΩ
Parameter
Condition
Min
Typ
Max
Units
VPP Output
VCC Output
September 2006
4
M9999-092106
Micrel, Inc.
Symbol
I
CC5
I
CC3
I
PP IN
V
CC5 IN
V
CC3 IN
V
PP IN
I
CC3
Parameter
V
CC5 IN
Supply Current
V
CC3 IN
Supply Current
V
PP IN
Supply Current
(I
PP OUT
= 0)
Operating Input Voltage
Operating Input Voltage
Operating Input Voltage
Active Mode Current
V
PP IN
= 0V, V
CC3
= V
CC3
= 3.3V
V
CC3
= enabled
V
PP
= disabled (hi-Z or 0V)
V
PP IN
= 0V, V
CC5
= V
CC3
= 3.3V
V
CC3
= enabled
V
PP
= disabled (hi-Z or 0V)
Condition
I
CC OUT
= 0
V
CC OUT
= 5V or 3.3V, I
CC OUT
= 0
V
CC OUT
= hi-Z (Sleep mode)
V
CC
active, V
PP OUT
= 5V or 3.3V
V
PP OUT
= hi-Z, 0 or V
PP
V
CC5
IN
≥
V
CC3
IN
V
CC3 IN
≤
V
CC5 IN
V
CC3 IN
2.8
8.0
Min
Typ
0.01
30
0.01
15
0.01
5.0
3.3
12.0
30
Max
10
50
10
50
10
6
V
CC3 IN
14.5
MIC2560
Units
µA
µA
µA
µA
µA
V
V
V
µA
Power Supply
Suspend Mode (Note 4)
R
ON
V
CC
V
CC OUT
R
ON
4.5
Ω
Notes:
1. Functional operation above the absolute maximum stress ratings is not implied.
2. Static-sensitive device. Store only in conductive containers. Handling personnel and equipment should be grounded to prevent damage from static
discharge.
3. Leakage current after 1,000 hours at 125°C may increase up to five times the initial limit.
4. Suspend mode is a pseudo-power-down mode the MIC2560 automatically allows when V
PP IN
= 0V, V
PP OUT
is deselected, and V
CC OUT
=3.3V is
selected. Under these conditions, the MIC2560 functions in a reduced capacity mode where V
CC
output of 3.3V is allowed, but at lower current levels
(higher switch on-resistance).
September 2006
5
M9999-092106
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