The TPS2202 PC Card (PCMCIA) power-interface switch provides an integrated power-management solution
for two PC Cards. All of the discrete power MOSFETs, a logic section, current limiting, thermal protection, and
power-good reporting for PC Card control are combined on a single integrated circuit (IC), using Texas
Instruments LinBiCMOS process. The circuit allows the distribution of 3-V, 5-V, and/or 12-V card power by
means of a reduced I/O serial interface. 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 a
bad card.
DD
The TPS2202 maximizes battery life by using an internal charge pump to generate its own switch-drive voltage.
Therefore, the 12-V supply can be powered down and only brought out of standby when flash memory needs
to be written to or erased. End equipment for the TPS2202 includes notebook computers, desktop computers,
personal digital assistants (PDAs), digital cameras, handiterminals, and bar-code scanners.
typical PC-card power-distribution application
V
Power Supply
12 V
5 V
3 V
3
PCMCIA
Controller
LinBiCMOS is a trademark of Texas Instruments Incorporated.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
12V
5V
3V
Serial Interface
APWR_GOOD
BPWR_GOOD
OC
DD
TPS2202
AVPP
AVCC
AVCC
AVCC
BVPP
BVCC
BVCC
BVCC
V
pp1
V
V
V
V
V
V
V
pp2
CC
CC
pp1
pp2
CC
CC
PC
Card A
PC
Card B
Copyright 1995, Texas Instruments Incorporated
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
6–1
TPS2202, TPS2202Y
CHIP FORM
I/O
DESCRIPTION
DUAL-SLOT PC CARD POWER-INTERFACE SWITCHES
FOR SERIAL PCMCIA CONTROLLERS
SLVS103A – DECEMBER 1994 – REVISED AUGUST 1995
AVAILABLE OPTIONS
PACKAGED DEVICES
T
J
–40°C to 150°CTPS2202IDBTPS2202IDFTPS2202Y
†
The DF package is only available left-end taped and reeled (indicated by the LE suffix on the device type; e.g.,
TPS2202IDFLE).
TERMINAL
NAMENO.
3V15, 16, 17I3-V VCC input for card power
5V1, 2, 30I5-V VCC input for card power
12V7, 24I12-V VPP input for card power
AVCC9, 10, 11OSwitched output that delivers 0 V , 3.3 V, 5 V, or high impedance
AVPP8OSwitched output that delivers 0 V, 3.3 V, 5 V, 12 V, or high impedance
APWR_GOOD13OLogic-level power-ready output that stays low as long as AVPP is within limits.
BVCC20, 21, 22OSwitched output that delivers 0 V, 3.3 V, 5 V, or high impedance
BVPP23OSwitched output that delivers 0 V, 3.3 V, 5 V, 12 V, or high impedance
BPWR_GOOD19OLogic-level power-ready output that stays low as long as BVPP is within limits.
CLOCK4ILogic-level clock for serial data word
DATA3ILogic-level serial data word
GND12Ground
LATCH5ILogic-level latch for serial data word
NC6, 14, 26,
OC18OLogic-level overcurrent reporting output that goes low when an overcurrent condition exists.
V
DD
27, 28, 29
255-V power to chip
SHINK SMALL-OUTLINE
(DB)
Terminal Functions
No internal connection
SMALL-OUTLINE
(DF)
(Y)
6–2
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TPS2202, TPS2202Y
DUAL-SLOT PC CARD POWER-INTERFACE SWITCHES
FOR SERIAL PCMCIA CONTROLLERS
SLVS103A – DECEMBER 1994 – REVISED AUGUST 1995
TPS2202Y chip information
This chip, when properly assembled, displays characteristics similar to the TPS2202. Thermal compression or
ultrasonic bonding may be used on the doped aluminum bonding pads. The chips may be mounted with
conductive epoxy or a gold-silicon preform.
BONDING PAD ASSIGNMENTS
204
(19)
(20)
(21)
(22)
(23)
(24)
(25)
(18)
(17)
(30)
(16)
(1)
142
(15)
(2)
(13)
(3)(4)
(12)
(11)
(10)
(9)
APWR_GOOD
(8)
(7)
(5)
(1)
(2)
5V
(3)
DATA
CLOCK
LATCH
(5)
(6)
NC
(7)
12V
(8)
AVPP
(9)
AVCC
(10)
AVCC
(11)
AVCC
(12)
GND
(13)
(14)
NC
(15)
3V
CHIP THICKNESS: 15 MILS TYPICAL
BONDING PADS: 4 × 4 MILS MINIMUM
TJmax = 150°C
TOLERANCES ARE ±10%
ALL DIMENSIONS ARE IN MILS
TERMINALS 6, 14, 26, 27, 28, AND 29
ARE NOT CONNECTED
TPS2201Y
(30)
(29)
(28)
(27)(4)
(26)
(25)
(24)
(23)
(22)
(21)
(20)
(19)
(18)
(17)
(16)
5V5V
NC
NC
NC
NC
V
DD
12V
BVPP
BVCC
BVCC
BVCC
BPWR_GOOD
OC
3V
3V
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
6–3
TPS2202, TPS2202Y
Output current, I
DUAL-SLOT PC CARD POWER-INTERFACE SWITCHES
FOR SERIAL PCMCIA CONTROLLERS
SLVS103A – DECEMBER 1994 – REVISED AUGUST 1995
absolute maximum ratings over operating free-air temperature (unless otherwise noted)
Supply voltage range, V
Input voltage range for card power: V
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 ratings 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.
Serial-Interface Timing2
xVCC Propagation Delay and Rise Times With 1-µF Load, 3-V Switch3
xVCC Propagation Delay and Fall Times With 1-µF Load, 3-V Switch4
xVCC Propagation Delay and Rise Times With 100-µF Load, 3-V Switch5
xVCC Propagation Delay and Fall Times With 100-µF Load, 3-V Switch6
xVCC Propagation Delay and Rise Times With 1-µF Load, 5-V Switch7
xVCC Propagation Delay and Fall Times With 1-µF Load, 5-V Switch8
xVCC Propagation Delay and Rise Times With 100-µF Load, 5-V Switch9
xVCC Propagation Delay and Fall Times With 100-µF Load, 5-V Switch10
xVPP Propagation Delay and Rise Times With 1-µF Load, 12-V Switch11
xVPP Propagation Delay and Fall Times With 1-µF Load, 12-V Switch12
xVPP Propagation Delay and Rise Times With 100-µF Load, 12-V Switch13
xVPP Propagation Delay and Fall Times With 100-µF Load, 12-V Switch14
C
L
V
t
off
90%
10%
DD
GND
V
I(12V)
GND
LATCH
V
O(xVCC)
t
on
Figure 1. Test Circuits and Voltage Waveforms
Table of Timing Diagrams
V
CC
C
L
LOAD CIRCUIT
50%
t
off
90%
VOLTAGE WAVEFORMS
FIGURE
10%
V
DD
GND
V
I(5V)
GND
DATA
LATCH
CLOCK
NOTE A. Data is clocked in on the a positive leading edge of the clock. The latch should occur before next positive leading edge of
the clock. For definition of D0–D8, see control logic table.
D8D7D6D5D4D3D2D1D0
Figure 2. Serial-Interface Timing
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
6–7
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