GMT G574SA Datasheet

Global Mixed-mode Technology Inc.

Dual-Slot PCMCIA/CardBus Power Controller

Features

Backward Compatible with G570



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



30 Pin SSOP



Compatible With 3.3V, 5V and 12V PC Cards



Low R



130 m Break-Before-Make Switching



Internal power-On Reset



Standby mode: 60mA current limit (TYP)



DS(on)

3.3V V

ΩΩΩΩ

(180-m

CC

5V VCC Switch;

ΩΩΩΩ

Switch)

Application

Notebook PC



Electronic Dictionary



POS



Description

The G574 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 G574 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 G574 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.

This device also has the ability to program the xVpp outputs independent of the xVCC outputs. A standby mode that changes all output-current limits to 50mA (typical) has been incorporated.

G574

and VPP

CC

Pin Configuration

5V

DATA

CLOCK

LATCH

RESET

12V

AVPP

AVCC

GND

NC

RESET

3.3V

11

12

13

14

10

10 11

1

2

3

4

5

6

7

8

9

End equipment for the G574 includes notebook computers, desktop computers, personal digital assistants (PDAs), digital cameras and bar-code scanners

The G574 is backward-compatible with the G570.

Ordering Information

PART NUMBER TEMP. RANGE PACKAGE

G574

30Pin SSOP

.

G574SA -40°C to +85°C 30 SSOP

5V

30

MODE

29

NC

28

NC

27

NC

26

NC

25

12V

24

23

BVPP

22

BVCC

21

BVCC

20

BVCC

STBY

19

18

OC

3.3V

17

3.3V

1615

Ver: 1.0

Jan 23, 2003

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

........…….......................………………-0.3V to 6V

I(3.3V)

V

……......................………..…...………..-0.3V to 6V

I(5V)

V

I(12V)…….

Logic input voltage...................................…-0.3V to 6V

Output current (each card): I

O (xVCC)…………..

I

O(xVPP).

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

…………………..…...…..internally limited

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

(unless otherwise noted)*

Operating virtual junction temperature range, T ……………………………………………….-40°C to 125°C Operating free-air temperature range, T ...…………………….……..……………….-40°C to 85°C Storage temperature range, T Thermal resistance SSOP 30………………………………………….122°C/W Power dissipation P SSOP 30…………………………………………1024mW ESD…………………………..………………………Note1

….…...-55°C to 150°C

STG

θ

JA

+25°C)

(T

≤

D

A

G574

J

A

*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

2.7 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

2.7 5.25 V

I (3.3V)

13.5 V

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

AVCC

12V

5V

(Ce ram ic)

3.3V

(Cera m ic)

0.1µF

(Cera m ic)

0.1µF

10µF

33µF

12V

5V

3.3V

MODE

STBY

G574

GND

AVCC

BVCC

AVPP

BVPP

DATA

CLOCK

LATCH

RESET

OC

0.1µF

System Voltage

Supervisor

or

PCI Bus Reset

V

CC

V

CC

Connector A

V

PP1

V

PP2

V

CC

V

CC

V

PP1

V

PP2

DATA

CLOCK

LATCH

GPI/O

PC Card

Connector B

PCMCIA

C ontr olle r

Ver: 1.0

Jan 23, 2003

2

TEL: 886-3-5788833

http://www.gmt.com.tw

Global Mixed-mode Technology Inc.

G574

Terminal Functions

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

GND 12 Ground

MODE 29 I G570 operation when floating or pulled low; must be pulled high externally for G574 operation.

OC

RESET 6 I

RESET

STBY

CLOCK 4 I Logic level clock for serial data word

DATA 3 I Logic level serial data word

LATCH 5 I Logic level latch for serial data word

NC

18 O

14 I Logic-level reset input active low. Do not connect if RESET pin is used. The pin is internally

19 Logic-level active low input sets the G574 to standby mode and sets all current limits to 50mA.

13,25,26,

27,28

I/O DESCRIPTION

MODE is internally pulled low with a 150kΩ pulldown resistor.

Logic-level overcurrent. reports output that goes low when an overcurrent condition exists

Logic-level reset input active high. Do not connect if

pulled low with a 150kΩ pulldown resistor.

pulled high with a 150kΩ pullup resistor to 5V, if 5V V

exists only.

The pin is internally pulled high with a 150kΩ pullup resistor to 5V, if 5V V

to 3.3V, if 3.3V V

No internal connection

exists only.

CC

RESET

pin is used. RESET is internally

exists. And pulled to 3.3V, if 3.3V VCC

CC

exists. And pulled

CC

Ver: 1.0

Jan 23, 2003

3

TEL: 886-3-5788833

http://www.gmt.com.tw

Global Mixed-mode Technology Inc.

Electrical Characteristics

(T

A=TJ

=25°C, V

I(5V)

=5V, V

I(3.3V)

=3.3V, V

I(12V)

=12V,

floating, all outputs unloaded (unless otherwise noted)

STBY

G574

DC Characteristics

PARAMETER TEST CONDITIONS MIN TYP MAX UNIT

5V to xVCC 150 180

3.3V to xVCC V

I(5V)

= 5V, V = 0V, V

=3.3V 100 130

I(3.3V)

=3.3V 110 150

I(3.3V)

5V to xVPP 3 4

Switch resistance*

3.3V to xVPP 2.9 4 12V to xVPP 1.3 2

3.3V/5V to xVCC 1.2 2

3.3V/5V to xVPP 12 12.5 12V to xVPP

V

Clamp low voltage IPP at 10mA 0.18 0.8 V

O(xVPP)

V

Clamp low voltage ICC at 10mA 0.13 0.8 V

O(xVCC)

I

Leakage current

IKG

IPP high impedance State

high-impedance State

I

CC

Normal operation and in reset mode

I

Input current⊙

I

Shutdown mode

I

O(xVCC)

I

O(xVPP)

I

Short-circuit*

OS

Output current Limit

Standby mode, 3.3V to xVCC Standby mode, 5V to xVCC Standby mode, 3.3V to xVPP Standby mode, 5V to xVPP Standby mode, 12V to xVPP

Thermal shutdown※

Trip point, TJ Hysteresis

STBY

= low, IO = 30mA

5 6.5

= 25°C 0.3 1

T

A

= 25°C 0.3 1

T

A

I

6 15

I(3.3V)

= V

V

I

110 150

O(xVCC)

I(5V)

I

I(12V)

I

82 150

I(3.3V)

I

I(5V)

I

I(12V)

I

I(3.3V)

I

I(5V)

I

I(12V)

= 0, V

V

I(5V)

0

V

O(xVPP)

= 12V

1

V

O(xVCC)

= Hi-Z, V

2 10

Output powered into a short to GND

O(xVCC)

= 5V

= 3.3V

O(xVPP)

5 15

17 45

= Hi-Z

1

0.8 2.2 A

120 450 mA

55 120

T

= 25°C Output powered into a

J

short to GND

STBY

=0V

70 120 44 120 78 120 60 110 155 10

* Pulse-testing techniques are used to maintain junction temperature close to ambient tem pe ratures; therm al effects m us t be taken into ac-

count separately.

⊙

Input currents do not include logic input currents (presented in electrical characteristics for logic section); clock is inactive.

※

Specified by design, not tested in production.

mΩ

Ω

µA

mA

°C

Logic Section

PARAMETER TEST CONDITION MIN TYP MAX UNIT

V

V V VI

V

1

Logic input current

II (RESET) or (

RESET

II (MODE)*

STBY

II (

I

)*

(CLOCK) or II(DATA) or II

)*

(LATCH) Logic input high level 2 V Logic input low level 2 0.8 V

Logic output high level,OC

Logic output low level,OC

RESET and MODE have internal 150kΩ pulldown resistors;

*

V V I

Ver: 1.0

Jan 23, 2003

= 5V or VI

I(RESET)

= 0V or VI

I(RESET)

= 5V 35 50

I(MODE)

= 0V 1

I(MODE)

= 5V 1

(

)

STBY

= 0V 35 50

I (

)

STBY

= 5V, IO = 1mA

I(5V)

= 0V, IO = 1mA

I(5V)

= 1mA 0.4 V

O

RESET

and

= 0V 35 50

(

)

RESET

= 5V 1

(

)

RESET

V

0.4

－

I(5V)

V

STBY

have internal 150kΩ pullup resistors.

I(3.3V)

－

0.4

TEL: 886-3-5788833

http://www.gmt.com.tw

4

µA

V

Global Mixed-mode Technology Inc.

G574

Switching Characteristics *, **

PARAMETER TEST CONDITION MIN TYP MAX UNIT

tr Output rise time

tf Output fall time

V V V V

LATCH↑to V

Propagation delay (see

tpd

Figure 1)

LATCH↑to V

* Refer to Parameter Measurement Information **Switching Characteristics are with C

2

O (xVCC)

1

O (xVPP)

0.01

O (xVCC)

0.01

O (xVPP)

ton 0.2

1.8

t

off

ton 2.4

8.5

t

off

ton 1

8.5

t

off

ton 2.6

8.2

t

off

= 0.1µF

L

O(xVPP)

O(xVCC)

(3.3V), V

(5V)

(3.3V), V

I(5V)

= 5V

I(5V)

= 0V

ms

Parameter Measurement Information

LATCH

V

O(xVPP)

V

O(xVPP)

LATCH

V

O(xVPP)

xVPP

50%

t

pd(off)

t

pd(on)

10%

Propagation Delay (xVPP)

t

r

90%

10%

Rise/Fall Time (xVPP)

50%

t

off

t

on

Turn on/off Time (xVPP)

90%

10%

t

f

I

O(xVPP)

V

DD

GND

V

DD

GND

LOAD CIRCUIT

LATCH

V

O(xVCC)

V

O(xVCC)

LATCH

V

O(xVCC)

xVCC

50%

t

pd(off )

t

pd(on)

10%

Propagation Delay (xVCC)

t

r

90%

10%

Rise/Fall Time (xVCC)

50%

t

off

t

on

90%

Turn on/off Time (xVCC)

90%

10%

I

O(xCC)

t

f

V

DD

GND

V

DD

GND

Ver: 1.0

Jan 23, 2003

VOLTAGE WAVEFORMS

Figure 1. Test Circuits and Voltage Waveforms

5

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GMT G574SA Datasheet

Specifications and Main Features

Frequently Asked Questions

User Manual