GMT G570S4, G570SA Datasheet

Global Mixed-mode Technology Inc.

Dual-Slot PCMCIA/CardBus Power Controller

Features

Fully Integrated VCC and Vpp Switching for Dual



Slot PC Card 3-Lead Serial Interface Compatible With



CardBus

3.3V Low Voltage Mode



Meets PC Card Standards



RESET for System Initialization of PC Cards



12V Supply Can Be Disabled Except During



TM

Interface

TM

Controllers

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



200 m Break-Before-Make Switching



Internal power-On Reset



DS(on)

3.3V V

ΩΩΩΩ

(225-m

CC

5V VCC Switch;

ΩΩΩΩ

Switch)

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 circuit (IC). The circuit allows the distribution of 3.3V, 5V, and/or 12V card power by means of the Serial interface. The current-limiting feature eliminates the need for fuses, which reduces component count and improves 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 (flash-memory programming voltage) outputs, which discharges residual card voltage.

End equipment for the G570 includes notebook computers, desktop computers, personal digital assistants (PDAs), digital cameras and bar-code scanners

G570

and VPP

CC

.

Pin Information

5V

1

12V

NC

2

3

4

5

6

7

8

9

10 11

12

13

14

28Pin SSOP

DATA

CLOCK

LATCH

RESET

AVPP

AVCC

GND

RESET

3.3V

G570

28

27

26

25

24

23

22

20

19

18

17

16

15

21

5V

NC

12V

BVPP

BVCC

NC

OC

3.3V

Ordering Information

PART NUMBER TEMP. RANGE PACKAGE

G570S4 -40°C to +85°C 28 SSOP

G570SA -40°C to +85°C 30 SSOP

G570

5V

DATA

CLOCK

LATCH

RESET

12V

AVPP

AVCC

GND

NC

RESET

3.3V

1

2

3

4

5

6

7

8

9

10 11

12

13

14

30Pin SSOP

30

28

27

26

25

24

23

22

20

19

18

17

1615

29

21

5V

NC

12V

BVPP

BVCC

NC

OC

3.3V

Ver: 1.1

Nov 28, 2000

1

TEL: 886-3-5788833

http://www.gmt.com.tw

Global Mixed-mode Technology Inc.

Absolute maximum ratings over operating free-air temperature

Input voltage range for card power: V V V

Logic input voltage...................................…-0.3V to 7V

Output current (each card): I I

.................................………………-0.3V to 7V

I(3.3V)

........................………..…...………..-0.3V to 7V

I(5V)

...................………..…………….. -0.3V to 14V

I(12V)

O (xVCC)…

O(xVPP).

…………………..……...…..internally limited

..............................…........... internally limited

(unless otherwise noted)*

Operating virtual junction temperature range, T ……………………………………………….-40°C to 150°C Operating free-air temperature range, T ...…………………….……..……………….-40°C to 85°C Storage temperature range, T Thermal resistance SSOP 28………………………………………….125°C/W SSOP 30………………………………………….122°C/W Power dissipation P SSOP 28……………………….………………….800mW SSOP 30…………………………………………1024mW

….…...-55°C to 150°C

STG

θ

JA

+25°C)

(T

≤

D

A

G570

J

A

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 absolute–maximum-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

V

0 5.25 V

I (5V)

Input voltage range, VI

Output current

Clock frequency 0 2.5 MHz

Operating virtual junction temperature, TJ -40 125 °C

V

0 5.25 V

I (3.3V)

V

0 13.5 V

I (12V)

I

at 25°C 1 A

O (xVCC)

I

at 25°C 150 mA

O (xVPP)

Min Max Unit

Typical PC Card Power-Distribution Application

Power Supply

12V

5V

3.3V

Supervisor

PCMCIA

Controller

12V

5V

3.3V

RESET

3

Serial Interface

OC

G570

AVPP

AVCC

BVPP

BVCC

V

PP1

V

PP2

V

CC

V

CC

V

PP1

V

PP2

V

CC

V

CC

PC Card A

PC Card B

Ver: 1.1

Nov 28, 2000

2

TEL: 886-3-5788833

http://www.gmt.com.tw

Global Mixed-mode Technology Inc.

Terminal Functions

28 Pin

TERMINAL

NAME NO.

3.3V 14,15,16 I 3.3V VCC input for card power

5V 1,27,28 I 5V VCC input for card power and/or chip power

12V 6,23 I 12V VPP 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

RESET 5 I Logic-level RESET input active high. Do not connect if terminal 13 is used.

RESET

17 O

13

I/O DESCRIPTION

OC

Logic-level overcurrent.

exists

I

Logic-level

input active low. Do not connect if terminal 5 is used.

RESET

reports output that goes low when an overcurrent condition

G570

30 Pin

TERMINAL

NAME NO.

3.3V 15,16,17 I 3.3V VCC input for card power

5V 1,2,30 I 5V VCC input for card power and/or chip power

12V 7,24 I 12V VPP 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

OC

RESET 6 I Logic-level RESET input active high. Do not connect if terminal 14 is used.

RESET

13,19,25,26,

27,28,29

18 O

14

I/O DESCRIPTION

No internal connection

OC

Logic-level overcurrent.

exists

I

Logic-level

RESET

input active low. Do not connect if terminal 6 is used.

reports output that goes low when an overcurrent condition

Ver: 1.1

Nov 28, 2000

3

TEL: 886-3-5788833

http://www.gmt.com.tw

Global Mixed-mode Technology Inc.

Electrical Characteristics

(TA = 25

°C,

V

= 5V; unless otherwise noted)

I(5V)

G570

DC Characteristics

PARAMETER TEST CONDITIONS MIN TYP MAX UNIT

5V to x VCC 170 225

mΩ

Ω

µA

Switch resistance*

3.3V to x VCC V

5V to x VPP 6

I(5V)

= 5V, V

= 0V, V

=3.3V 140 200

I(3.3V)

=3.3V 150 200

I(3.3V)

3.3V to x VPP 6

12V to x VPP 6

V

Clamp low voltage IPP at 10mA 0.8 V

O(xVPP)

V

Clamp low voltage ICC at 10mA 0.8 V

O(xVCC)

I

Leakage current

IKG

I

Input current

I

Short-circuit

OS

Output current Limit

IPP high impedance State TA = 25°C 1 10

I

high-impedance State TA = 25°C 1 10

CC

V

= 5V V

I(5V)

V

= 0V

I(5V)

= 3.3V

V

I(3.3V)

Shutdown mode V

I

0.8 2.2 A I

O(xVCC)

I

O(xVPP)

O(AVCC)

V

O(AVPP)

V

O(AVCC)

V

O(AVPP)

O(BVCC)

=V

O(AVPP)

= V = V

= V

O(BVCC)

O(BVPP)

O(BVCC)

O(BVPP)

O(AVCC)

O(BVPP)

= 5V

= 12V

= 3.3V

= 0V

= Hi-Z

Output powered up into a short to GND

115 150

131 150

2

120 400 mA

*Pulse-testing techniques are used to maintain junction temperature close to ambient te mper at ures; t hermal effects must b e taken into account

separately.

Logic Section

PARAMETER TEST CONDITION MIN MAX UNIT

Logic input current 1 µA

Logic input high level 2 V

Logic input low level 0.8 V

0.4

V

－

Logic output high level

V

= 5V, IO = 1mA

I(5V)

= 0V, IO = 1mA

V

I(5V)

V

= 3.3V

I(3.3V)

V

I(5V)

I(3.3V)

－

0.4

V

Logic output low level IO = 1mA 0.4 V

Switching Characteristics *, **

PARAMETER TEST CONDITION MIN TYP MAX UNIT

V

2

tr Output rise time

tf Output fall time

Propagation delay (see

tpd

Figure 1)

* Refer to Parameter Measurement Information

**Switching Characteristics are with C

O (xVCC)

V

10

O (xVPP)

V

16

O (xVCC)

V

45

O (xVPP)

LATCH↑to V

= 147µF

L

O(xVPP)

O(xVCC)

(3.3V), V

(5V)

(3.3V), V

I(5V)

= 5V

= 0V

ton 7 ms

30 ms

t

off

ton 5 ms

16 ms

t

off

ton 3.2 ms

25 ms

t

off

ton 6 ms

21 ms

t

off

ms

Ver: 1.1

Nov 28, 2000

4

TEL: 886-3-5788833

http://www.gmt.com.tw

Global Mixed-mode Technology Inc.

Parameter Measurement Information

V

PP

C

L

LOAD CIRCUIT

50%

LATCH

t

off

t

on

V

O(xVPP)

90%

VOLTAGE WAVEFORMS

Figure 1. Test Circuits and Voltage Waveforms

Table of Timing Diagrams

10%

V

DD

GND

V

GND

I(12V)

LATCH

V

O(xVCC)

V

CC

LOAD CIRCUIT

50%

t

off

t

on

90%

VOLTAGE WAVEFORMS

G570

C

L

V

DD

GND

V

I(5V)

10%

GND

DATA

LATCH

CLOCK

D7D8

D6 D5 D4 D3 D2 D1 D0

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

Ver: 1.1

Nov 28, 2000

5

TEL: 886-3-5788833

http://www.gmt.com.tw

GMT G570S4, G570SA Datasheet

Specifications and Main Features

Frequently Asked Questions

User Manual