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Электронный компонент: G570SA

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Ver 1.0
Nov 09, 2000
TEL: 886-3-5788833
http://www.gmt.com.tw
1
G570
Global Mixed-mode Technology Inc.
Dual-Slot PCMCIA/CardBus Power Controller
Features
Fully Integrated V
CC
and V
pp
Switching for Dual
Slot PC Card
TM
Interface
3-Lead Serial Interface Compatible With
CardBus
TM
Controllers
3.3V Low Voltage Mode
Meets PC Card Standards
RESET for System Initialization of PC Cards
12V Supply Can Be Disabled Except During
12V Flash Programming
Short Circuit and Thermal Protection
28 Pin and 30 Pin SSOP
Compatible With 3.3V, 5V and 12V PC Cards
Low R
DS(on)
(225-m
5V V
CC
Switch;
200 m
3.3V V
CC
Switch)
Break-Before-Make Switching
Internal power-On Reset
Application
Notebook PC
Electronic Dictionary
Personal Digital Assistance
Digital still Camera
Description
The G570 PC Card power-interface switch provides an
integrated power-management solution for two 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 (IC). The circuit allows the distribution of 3.3V, 5V,
and/or 12V card power by means of the Serial inter-
face. The current-limiting feature eliminates the need
for fuses, which reduces component count and im-
proves reliability.
The G570 features a 3.3V low voltage mode that allows
for 3.3V switching without the need for 5V supply. This
facilitates low power system designs such as sleep
mode and pager mode where only 3.3V is available.
The G570 incorporates a reset function, selectable by
one of two inputs, to help alleviate system errors. The
reset function enables PC card initialization concurrent
with host platform initialization, allowing a system reset.
Reset is accomplished by grounding the V
CC
and V
PP
(flash-memory programming voltage) outputs, which
discharges residual card voltage.
End equipment for the G570 includes notebook com-
puters, desktop computers, personal digital assistants
(PDAs), digital cameras and bar-code scanners
.
Ordering Information
PART NUMBER TEMP. RANGE
PACKAGE
G570S4
-40C to +85C
28 SSOP
G570SA
-40C to +85C
30 SSOP
Pin Information
NC
NC
NC
12V
BVPP
BVCC
BVCC
BVCC
NC
OC
3.3V
3.3V
5V
DATA
CLOCK
LATCH
RESET
12V
AVPP
AVCC
AVCC
AVCC
GND
NC
RESET
3.3V
G570
5V
5V
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
NC
NC
NC
12V
BVPP
BVCC
BVCC
BVCC
NC
OC
3.3V
3.3V
5V
DATA
CLOCK
LATCH
RESET
12V
AVPP
AVCC
AVCC
AVCC
GND
NC
RESET
3.3V
G570
5V
30Pin 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
5V
30
29
NC
NC
Ver 1.0
Nov 09, 2000
TEL: 886-3-5788833
http://www.gmt.com.tw
2
G570
Global Mixed-mode Technology Inc.
Absolute maximum ratings over operating
free-air temperature
(unless otherwise noted)*
Input voltage range for card power:
V
I(3.3V)
...................................................-0.3V to 7V
V
I(5V)
....................................................-0.3V to 7V
V
I(12V)
............................................... -0.3V to 14V
Logic input voltage......................................-0.3V to 7V
Output current (each card):
I
O (xVCC)...
.....................................internally limited
I
O(xVPP).
............................................ 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
*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.
Recommended Operating Conditions
Min Max Unit
V
I (5V)
0
5.25
V
V
I (3.3V)
0
5.25
V
Input voltage range, V
I
V
I (12V)
0
13.5
V
I
O (xVCC)
at 25C
1
A
Output current
I
O (xVPP)
at 25C
150
mA
Clock frequency
0 2.5
MHz
Operating virtual junction temperature, T
J
-40
125
C
Typical PC Card Power-Distribution Application
Supervisor
PCMCIA
Controller
12V
5V
3.3V
3
G570
12V
5V
3.3V
RESET
RESET
Serial Interface
OC
AVPP
V
PP1
V
PP2
V
CC
V
CC
PC Card A
V
PP1
V
PP2
V
CC
V
CC
PC Card B
AVCC
AVCC
AVCC
BVPP
BVCC
BVCC
BVCC
Power Supply
Ver 1.0
Nov 09, 2000
TEL: 886-3-5788833
http://www.gmt.com.tw
3
G570
Global Mixed-mode Technology Inc.
Terminal Functions
28 Pin
TERMINAL
NAME NO.
I/O DESCRIPTION
3.3V 14,15,16
I
3.3V
V
CC
input for card power
5V 1,27,28
I
5V
V
CC
input for card power and/or chip power
12V 6,23
I
12V
V
PP
input for card power
AVCC
8,9,10
O
Switched output that delivers 0V,3.3V,5V or high impedance to card
AVPP
7
O
Switched output that delivers 0V,3.3V,5V,12V or high impedance to card
BVCC
19,20,21
O
Switched output that delivers 0V, 3.3V, 5V or high impedance
BVPP
22
O
Switch output that delivers 0V, 3.3V, 5V, 12V or high impedance
CLOCK
3
I
Logic-level clock for serial data word
DATA
2
I
Logic-level serial data word
GND 11
Ground
LATCH
4
I
Logic level latch for serial data word
NC
12,18,24,25,26
No internal connection
OC
17 O
Logic-level overcurrent.
OC
reports output that goes low when an overcurrent condition
exists
RESET
5
I
Logic-level RESET input active high. Do not connect if terminal 13 is used.
RESET
13
I
Logic-level RESET input active low. Do not connect if terminal 5 is used.
30 Pin
TERMINAL
NAME NO.
I/O DESCRIPTION
3.3V 15,16,17
I
3.3V
V
CC
input for card power
5V 1,2,30
I
5V
V
CC
input for card power and/or chip power
12V 7,24
I
12V
V
PP
input for card power
AVCC
9,10,11
O
Switched output that delivers 0V,3.3V,5V or high impedance to card
AVPP
8
O
Switched output that delivers 0V,3.3V,5V,12V or high impedance to card
BVCC
20,21,22
O
Switched output that delivers 0V, 3.3V, 5V or high impedance
BVPP
23
O
Switch output that delivers 0V, 3.3V, 5V, 12V or high impedance
CLOCK
4
I
Logic level clock for serial data word
DATA
3
I
Logic level serial data word
GND 12
Ground
LATCH
5
I
Logic level latch for serial data word
NC
13,19,25,26,
27,28,29
No internal connection
OC
18 O
Logic-level overcurrent.
OC
reports output that goes low when an overcurrent condition
exists
RESET
6
I
Logic-level RESET input active high. Do not connect if terminal 14 is used.
RESET
14
I
Logic-level
RESET
input active low. Do not connect if terminal 6 is used.
Ver 1.0
Nov 09, 2000
TEL: 886-3-5788833
http://www.gmt.com.tw
4
G570
Global Mixed-mode Technology Inc.
Electrical Characteristics
(T
A
= 25C, V
I(5V)
= 5V; unless otherwise noted)
DC Characteristics
PARAMETER TEST
CONDITIONS
MIN
TYP MAX UNIT
5V to x VCC
170
225
3.3V to x VCC
V
I(5V)
= 5V, V
I(3.3V)
=3.3V
140
200
3.3V to x VCC
V
I(5V)
= 0V, V
I(3.3V)
=3.3V
150
200
m
5V to x VPP
6
3.3V to x VPP
6
Switch resistance*
12V to x VPP
6
V
O(xVPP)
Clamp low voltage
I
PP
at 10mA
0.8
V
V
O(xVCC)
Clamp low voltage
I
CC
at 10mA
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
V
I(5V)
= 5V
V
O(AVCC)
= V
O(BVCC)
= 5V
V
O(AVPP)
= V
O(BVPP)
= 12V
115 150
V
I(5V)
= 0V
V
I(3.3V)
= 3.3V
V
O(AVCC)
= V
O(BVCC)
= 3.3V
V
O(AVPP)
= V
O(BVPP)
= 0V
131 150
I
I
Input current
Shutdown mode
V
O(BVCC)
= V
O(AVCC)
=V
O(AVPP)
= V
O(BVPP)
= Hi-Z
2
A
I
O(xVCC)
0.8 2.2
A
I
OS
Short-circuit
Output current Limit
I
O(xVPP)
Output powered up into a short to
GND
120 400
mA
*Pulse-testing techniques are used to maintain junction temperature close to ambient temperatures; thermal effects must be taken into account
separately.
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
V
I(5V)
= 5V, I
O
= 1mA
V
I(5V)
0.4
Logic output high level
V
I(5V)
= 0V, I
O
= 1mA
V
I(3.3V)
= 3.3V
V
I(3.3V)
0.4
V
Logic output low level
I
O
= 1mA
0.4
V
Switching Characteristics *, **
PARAMETER TEST
CONDITION
MIN
TYP
MAX
UNIT
V
O (xVCC)
2
t
r
Output rise time
V
O (xVPP)
10
V
O (xVCC)
16
t
f
Output fall time
V
O (xVPP)
45
ms
t
on
7 ms
LATCH
to V
O(xVPP)
t
off
30 ms
t
on
5 ms
LATCH
to V
O(xVCC)
(3.3V), V
I(5V)
= 5V
t
off
16 ms
t
on
3.2 ms
LATCH
to V
O(xVCC)
(5V)
t
off
25 ms
t
on
6 ms
t
pd
Propagation delay (see
Figure 1)
LATCH
to V
O(xVCC)
(3.3V), V
I(5V)
= 0V
t
off
21 ms
* Refer to Parameter Measurement Information
**Switching Characteristics are with C
L
= 147F
Ver 1.0
Nov 09, 2000
TEL: 886-3-5788833
http://www.gmt.com.tw
5
G570
Global Mixed-mode Technology Inc.
Parameter Measurement Information
Figure 1. Test Circuits and Voltage Waveforms
Table of Timing Diagrams
Note:Data is clocked in on the positive leading edge of the clock. The latch should occur before the next
positive leading edge of the clock. For definition of D0 to D8, see the control logic table.
Figure 2. Serial-Interface Timing
V
DD
GND
50%
90%
t
off
t
on
10%
V
I(12V)
GND
LATCH
V
O(xVPP)
V
PP
C
L
VOLTAGE WAVEFORMS
LOAD CIRCUIT
V
DD
GND
50%
90%
t
off
t
on
10%
V
I(5V)
GND
LATCH
V
O(xVCC)
V
CC
C
L
VOLTAGE WAVEFORMS
LOAD CIRCUIT
D7
D8
D6
D5
D4
D3
D2
D1
D0
DATA
LATCH
CLOCK