Ver: 1.0
Jan 23, 2003
TEL: 886-3-5788833
http://www.gmt.com.tw
1
G576
Global Mixed-mode Technology Inc.
Dual-Slot PCMCIA/CardBus Power Controllers
Features
Fully Integrated V
CC
and V
PP
Switching for
Dual-Slot PC Card
TM
Interface
Low r
DS(on)
(180-m
5V V
CC
Switch and 3.3V V
CC
Switch)
3.3V Low-Voltage Mode
Meets PC Card Standards
12V Supply Can Be Disabled Except During
12V Flash Programming
Short Circuit and Thermal Protection
28 Pin SSOP
Compatible With 3.3V, 5V, and 12V PC Cards
Break-Before-Make Switching
Application
Notebook PC
Electronic Dictionary
Personal Digital Assistance
Digital still Camera
Description
The G576 PC Card power-interface switch provides an
integrated power-management solution for dual-slot
PC Cards. All of the discrete power MOSFETs, a logic
section, current limiting, and thermal protection for PC
Card control are combined on a single integrated cir-
cuit. The circuit allows the distribution of 3.3V, 5V,
and/or 12V card power, and is compatible with many
PCMCIA controllers. The current-limiting feature
eliminates the need for fuses, which reduces compo-
nent count and improves reliability. Current-limit re-
porting can help the user isolate a system fault to the
PC Card.
The G576 features a 3.3V low voltage mode that al-
lows for 3.3V switching without the need for 5V. Bias
power can be derived from either the 3.3V or 5V inputs.
This facilitates low-power system designs such as
sleep mode and pager mode where only 3.3V is
available.
End equipment for the G576 includes notebook com-
puters, desktop computers, personal digital assistants
(PDAs), digital cameras and bar-code scanners.
Ordering Information
PART NUMBER TEMP. RANGE
PACKAGE
G576
-40C to +85C
28-SSOP
Pin Configuration
VCC12
AOC
GND
VCC5
VCC5
VCC3
BVCCD1
BVCCD0
BSHDN
BVPPD1
BVCC
AVCC
AVPPD1
AVPPD0
ASHDN
AVCCD0
AVCCD1
VCC3
VCC5
VCC5
GND
BOC
VCC12
BVPP
BVCC
G576
AVCC
AVPP
28Pin SSOP
5
6
7
8
9
10
11
12
13
14
26
27
28
25
24
23
22
21
20
19
18
17
16
15
1
4
3
2
BVPPD0
VCC12
AOC
GND
VCC5
VCC5
VCC3
BVCCD1
BVCCD0
BSHDN
BVPPD1
BVCC
AVCC
AVPPD1
AVPPD0
ASHDN
AVCCD0
AVCCD1
VCC3
VCC5
VCC5
GND
BOC
VCC12
BVPP
BVCC
G576
AVCC
AVPP
28Pin SSOP
5
6
7
8
9
10
11
12
13
14
26
27
28
25
24
23
22
21
20
19
18
17
16
15
1
4
3
2
BVPPD0
Ver: 1.0
Jan 23, 2003
TEL: 886-3-5788833
http://www.gmt.com.tw
2
G576
Global Mixed-mode Technology Inc.
Typical PC-card Power-distribution application
Terminal Functions
TERMINAL
NAME NO.
I/O DESCRIPTION
AVCC
1,28
O
Switched output that delivers 0V, 3.3V, 5V, or high impedance to card
AVPPD1
2
I
Logic input that controls voltage of AVPP (see control-logic table)
AVPPD0
3
I
Logic input that controls voltage of AVPP (see control-logic table)
ASHDN
4
I
Logic input that shuts down AVPP/AVCC and sets AVPP/AVCC to high-impedance state
0
AVCCD
5
I
Logic input that controls voltage of AVCC (see control-logic table)
1
AVCCD
6 I
Logic input that controls voltage of AVCC (see control-logic table)
VCC3 7,21
I
3.3V
V
CC
input for card power and/or chip power if 5V is not present
VCC5 8,9,22,23
I
5V
V
CC
input for card power and/or chip power
GND 10,24
Ground
BOC
11
O
Logic-level overcurrent reporting output that goes low when an overcurrent condition exists
VCC12 12,26 I
12V
V
PP
input card power
BVPP
13
O
Switched output that delivers 0V, 3.3V, 5V, 12V or high impedance to card
BVCC
14,15
O
Switched output that delivers 0V, 3.3V, 5V, or high impedance to card
BVPPD1
16
I
Logic input that controls voltage of BVPP (see control-logic table)
BVPPD0
17
I
Logic input that controls voltage of BVPP (see control-logic table)
BSHDN
18
I
Logic input that shuts down BVPP/BVCC and set BVPP/BVCC to high-impedance state
0
BVCCD
19
I
Logic input that controls voltage of BVCC (see control-logic table)
1
BVCCD
20
I
Logic input that controls voltage of BVCC (see control-logic table)
AOC
25
O
Logic-level overcurrent reporting output that goes low when an overcurrent condition exists
AVPP
27
O
Switched output that delivers 0V, 3.3V, 5V, 12V or high impedance to card
0.1F
AVCC
AVCC
AVPP
V
CC1
V
CC2
PC Card
Connector
A
V
PP1
V
PP2
GND
0.1F
G576
0.1F
BVCC
BVCC
BVPP
V
CC1
V
CC2
PC Card
Connector
B
V
PP1
V
PP2
0.1F
AOC
BOC
AVCCD0
AVCCD1
AVPPD0
AVPPD1
BVCCD0
BVCCD1
BVPPD0
BVPPD1
ASHDN
BSHDN
VCC12
VCC12
VCC3
VCC3
VCC5
VCC5
VCC5
VCC5
PCMCIA
Controller
GND
12V
5V
3.3V
To CPU
To CPU
From CPU
From CPU
0.1F
0.1F
0.1F
1F
1F
1F
0.1F
AVCC
AVCC
AVPP
V
CC1
V
CC2
PC Card
Connector
A
V
PP1
V
PP2
GND
0.1F
G576
0.1F
BVCC
BVCC
BVPP
V
CC1
V
CC2
PC Card
Connector
B
V
PP1
V
PP2
0.1F
AOC
BOC
AVCCD0
AVCCD1
AVPPD0
AVPPD1
BVCCD0
BVCCD1
BVPPD0
BVPPD1
ASHDN
BSHDN
VCC12
VCC12
VCC3
VCC3
VCC5
VCC5
VCC5
VCC5
PCMCIA
Controller
GND
12V
5V
3.3V
To CPU
To CPU
From CPU
From CPU
0.1F
0.1F
0.1F
1F
1F
1F
Ver: 1.0
Jan 23, 2003
TEL: 886-3-5788833
http://www.gmt.com.tw
3
G576
Global Mixed-mode Technology Inc.
Absolute Maximum Ratings Over Operating
Free-Air Temperature
(unless other-wise noted)*
Input voltage range for card power:
VCC5.........................................................-0.3V to 7V
VCC3................................................... -0.3V to 7V
VCC12....................................................-0.3V to 14V
Logic input voltage......................................-0.3V to 7V
Output current (each card):I
O (AVCC/BVCC)..
internally limited
I
O(AVPP/BVPP).....
internally limited
Operating virtual junction temperature range, T
J.
.........................................................-40C to 150C
Operating free-air temperature range,.T
A
........................................................................................
-40C to 85C
Storage temperature range, T
STG
........................................................-55C to 150C
Lead temperature 1.6 mm (1/16 inch) from case for
10 seconds....................................................260C
Thermal resistance
JA
SSOP 28..................................................125C/W
Power dissipation P
D
(T
A
+25C)
SSOP 28...................................................800mW
ESD............................................................Note1
*
Stresses beyond those listed under "absolute maximum ratings"may cause permanent damage to the device. These are stress rating
only, and functional operation of the device at these or any other conditions beyond those indicated under "recommended operating
conditions"is not implied. Exposure to absolutemaximum-rated conditions for extended periods may affect device reliability.
Note 1: ESD (electrostatic discharge) sensitive device. Proper ESD precautions are recommended to avoid performance degradation or
less of functionality.
Recommended Operating Conditions
MIN MAX UNIT
VCC5 0
5.25
V
VCC3 0
5.25
V
Input voltage, V
I
VCC12 0
13.5
V
I
O (AVCC/BVCC)
1.0
A
Output current
I
O (AVPP/BVPP)
150
mA
Operating virtual junction temperature, T
J
-40
125
C
Electrical Characteristics
(T
A
=25C)
Power Switch
PARAMETER TEST
CONDITIONS*
MIN
TYP MAX UNIT
5V to AVCC/BVCC
VCC5 = 5V
130
180
3.3V to AVCC/BVCC
VCC5 = 5V, VCC3 =3.3V
130
180
3.3V to AVCC/BVCC
VCC5 = 0V, VCC3 =3.3V
130
180
m
5V to AVPP/BVPP
T
J
= 25C
3.6
6
3.3V to AVPP/BVPP
T
J
= 25C
3.4
6
Switch resistance
12V to AVPP/BVPP
T
J
= 25C
1.2
6
V
O (AVPP/BVPP)
Clamp low voltage
I
PP
at 10mA
0.18 0.8
V
V
O (AVCC/BVCC)
Clamp low voltage
I
CC
at 10mA
0.13 0.8
V
I
PP
high-impedance State T
A
= 25C
1
10
I
IKG
Leakage current
I
CC
high-impedance State T
A
= 25C
1
10
A
VCC5 = 5V
V
O (AVCC/BVCC)
=5V, V
O (AVPP/BVPP)
=12V
75
150
VCC5= 0V, VCC3 = 3.3V V
O (AVCC/BVCC)
=3.3V, V
O (AVPP/BVPP)
=12V
75
150
I
I
Input current
Shutdown mode
V
O (AVCC/BVCC)
=V
O (AVPP/BVPP)
= Hi-Z
1
3
A
I
O(AVCC/BVCC)
0.8
2.2
A
I
OS
Short-circuit Output-
current Limit
I
O(AVPP/BVPP)
Output powered into a short to GND
120 400 mA
*Pulse-testing techniques maintain junction temperature close to ambient temperatures; thermal effects must be taken into account separately.
Ver: 1.0
Jan 23, 2003
TEL: 886-3-5788833
http://www.gmt.com.tw
4
G576
Global Mixed-mode Technology Inc.
Logic Section
PARAMETER TEST
CONDITION*
MIN
MAX
UNIT
Logic input current
1
A
Logic input high level
2
V
Logic input low level
0.8
V
VCC5=5V, I
O
=1mA VCC5
-0.4
Logic output high level
VCC5=0V, I
O
=1mA, VCC3=3.3V
VCC3
-0.4
V
Logic output low level
I
O
=1mA
0.4
V
*Pulse-testing techniques maintain junction temperature close to ambient temperatures; thermal effects must be taken into account sepa-
rately.
Switching Characteristics **
PARAMETER TEST
CONDITION
MIN
TYP
MAX
UNIT
V
O (AVCC/BVCC)
2.6
t
r
Rise times, output
V
O (AVPP/BVPP)
10
V
O (AVCC/BVCC)
7.5
t
f
Fall times, output
V
O (AVPP/BVPP)
38
ms
t
on
14
V
I
(
AVPPD0/BVPPD0
) to V
O (AVPP/BVPP)
t
off
44
t
on
3.2
V
I
(
1
AVCCD
/
1
BVCCD
) to V
O (AVCC/BVCC)
(3.3V)
t
off
17
t
on
4.4
t
pd
Propagation delay
(see Figure 1)
V
I
(
0
AVCCD
/
0
BVCCD
) to V
O (AVCC/BVCC)
(5V)
t
off
20
ms
**Switching Characteristics are with C
L
= 147F.
Refer to Parameter Measurement Information
Parameter Measurement Information
Figure 1. Test Circuits and Voltage Waveforms
Table of Timing Diagrams
FIGURE
AVCC/BVCC Propagation Delay and Rise Time With 1F Load, 3.3V Switch
2
AVCC/BVCC Propagation Delay and Fall Time With 1F Load, 3.3V Switch
3
AVCC/BVCC Propagation Delay and Rise Time With 147F Load, 3.3V Switch
4
AVCC/BVCC Propagation Delay and Fall Time With 147F Load, 3.3V Switch
5
AVCC/BVCC Propagation Delay and Rise Time With 1F Load, 5V Switch
6
AVCC/BVCC Propagation Delay and Fall Time With 1F Load, 5V Switch
7
AVCC/BVCC Propagation Delay and Rise Time With 147F Load, 5V Switch
8
AVCC/BVCC Propagation Delay and Fall Time With 147F Load, 5V Switch
9
AVPP/BVPP Propagation Delay and Rise Time With 1F Load, 12V Switch
10
AVPP/BVPP Propagation Delay and Fall Time With 1F Load, 12V Switch
11
AVPP/BVPP Propagation Delay and Rise Time With 147F Load, 12V Switch
12
AVPP/BVPP Propagation Delay and Fall Time With 147F Load, 12V Switch
13
LOAD CIRCUIT
V
DD
GND
50%
90%
t
off
t
on
10%
V
I(12V)
GND
V
O(AVPP)
AVPP
C
L
VOLTAGE WAVEFORMS
50%
V
I(VPPD0)
(V
I(VPPD1)
=0V)
LOAD CIRCUIT
V
DD
GND
50%
90%
t
off
t
on
10%
V
I(3.3V)
GND
V
O(AVCC)
AVCC
C
L
VOLTAGE WAVEFORMS
V
I(VCCD1)
(V
I(VCCD0)
=V
DD
)
50%
Ver: 1.0
Jan 23, 2003
TEL: 886-3-5788833
http://www.gmt.com.tw
5
G576
Global Mixed-mode Technology Inc.
Parameter Measurement Information
Figure 2. AVCC/BVCC Propagation Delay and Rise
Time With 1F Load, 3.3V Switch
Figure 3. AVCC/BVCC Propagation Delay and Fall
Time With 1F Load, 3.3V Switch
Figure 4. AVCC/BVCC Propagation Delay and Rise
Time With 147F Load, 3.3V Switch
Figure 5. AVCC/BVCC Propagation Delay and Fall
Time With 147F Load, 3.3V Switch
V C C D 0 =3.3 V
V C C D 1
AV C C
V C C D 0 = 3 .3 V
V C C D 1
AV C C
V C C D 0 = 3 .3V
V C C D 1
AV C C
V C C D 0=3.3V
V C C D 1
AV C C
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