Document
Global Mixed-mode Technology Inc.
G571
Single-Slot PCMCIA/CardBus Power Controllers
Features
Fully Integrated VCC and VPP Switching for Sin-
Description
The G571 PC Card power-interface switch provides an integrated power-management solution for a single 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. 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 component count and improves reliability. Current-limit reporting can help the user isolate a system fault to the PC Card. The G571 features a 3.3V low voltage mode that allows 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 G571 includes notebook computers, desktop computers, personal digital assistants (PDAs), digital cameras and bar-code scanners.
gle-Slot PC CardTM Interface Low rDS(on) (180-mΩ 5V VCC Switch and 3.3V VCC Switch) Compatible With Controllers From Cirrus, Ricoh, O2Micro, Intel, and Texas Instruments 3.3V Low-Voltage Mode Meets PC Card Standards 12V Supply Can Be Disabled Except During 12V Flash Programming Short Circuit and Thermal Protection Space-Saving 16 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
Ordering Information
PART NUMBER
G571S1
TEMP. RANGE
-40°C to +85°C
PACKAGE
16-SSOP
Pin Configuration
G571
VCCD0 VCCD1 3.3V 3.3V 5V 5V GND OC 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 SHDN VPPD0 VPPD1 AVCC AVCC AVCC AVPP 12V
16Pin SSOP
Ver 1.1 Jan 08, 2001
TEL: 886-3-5788833 http://www.gmt.com.tw
1
Global Mixed-mode Technology Inc.
Typical PC-card Power-distribution application
AVCC AVCC AVCC 0.1µF VCC1 VCC2 VPP1 AVPP 12V 5V 0.1µF 1µF 12V 5V 5V VCCD0 3.3V 0.1µF 1µF 3.3V 3.3V VCCD1 VPPD0 VPPD1 OC SHDN To CPU 0.1µF VPP2
G571
PC Card Connector
G571
PCMCIA Controller
VCC_EN0 VCC_EN1 VPP_EN0 VPP_EN1 CS
GND
Shutdown Signal From CPU
Terminal Functions
TERMINAL NAME
3.3V 5V 12V AVCC AVPP GND
OC SHDN VCCD0
NO.
3,4 5,6 9 11,12,13 10 7 8 16 1 2 15 14
I/O
I I I O O O I I I I I
DESCRIPTION
3.3V VCC input for card power and/or chip power if 5V is not present 5V VCC input for card power and/or chip power 12V VPP input card power Switched output that delivers 0V,3.3V,5V, or high impedance to card Switched output that delivers 0V,3.3V,5V,12V or high impedance to card Ground Logic-level overcurrent reporting output that goes low when an overcurrent condition exists Logic input that shuts down the G571 and sets all power outputs to high-impedance state Logic input that controls voltage of AVCC(see control-logic table) Logic input that controls voltage of AVCC(see control-logic table) Logic input that controls voltage of AVPP(see control-logic table) Logic input that controls voltage of AVPP(see control-logic table)
VCCD1
VPPD0 VPPD1
Ver 1.1 Jan 08, 2001
TEL: 886-3-5788833 http://www.gmt.com.tw
2
Global Mixed-mode Technology Inc.
Absolute Maximum Ratings Over Operating Free-Air Temperature (unless other-wise noted)*
Input voltage range for card power: VI(5V) ..........................................………..…….-0.3V to 7V VI(3.3V) ..........…...........................…….……... -0.3V to 7V VI(12V) ..........................................……..…….-0.3V to 14V Logic input voltage....................…...........…….-0.3V to 7V Output current (each card):IO (VCC)....……internally limited IO(VPP)............internally limited
G571
Operating virtual junction temperature range, TJ. .........…..............…………..…….………-40°C to 150°C Operating free-air temperature range,.TA ………………………………………………………………………….-40°C to 85°C Storage temperature range, TSTG ………………………...........….....……...-55°C to 150°C Lead temperature 1.6 mm (1/16 inch) from case for 10 seconds.……..……………………………….….260°C
*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.
Recommended Operating Conditions
MIN
VI(5V) Input voltage, VI VI(3.3V) VI(12V) IO(AVCC) Output current IO(AVPP) Operating virtual junction temperature, TJ 0 0 0
MAX
5.25 5.25 13.5 1.0 150 125
UNIT
V V V A mA
-40
°C
Electrical Characteristics (TA=25°C)
Power Switch PARAMETER
5V to AVCC 3.3V to AVCC 3.3V to AVCC 5V to AVPP 3.3V to AVPP 12V to AVPP
TEST CONDITIONS*
VI(5V) = 5V VI(5V) = 5V, VI(3.3V) =3.3V.