參數(shù)資料
型號(hào): TPS2226APWPRG4
廠商: TEXAS INSTRUMENTS INC
元件分類: 電源管理
英文描述: 3-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO24
封裝: LEAD FREE, PLASTIC, HTSSOP-24
文件頁(yè)數(shù): 1/29頁(yè)
文件大?。?/td> 447K
代理商: TPS2226APWPRG4
www.ti.com
FEATURES
APPLICATIONS
24
23
22
21
20
19
18
17
16
15
14
13
1
2
3
4
5
6
7
8
9
10
11
12
TPS2223A, TPS2224A
DB OR PWP PACKAGE
(TOP VIEW)
5V
DATA
CLOCK
LATCH
NC
12V
AVPP
AVCC
GND
RESET
5V
NC
SHDN
12V
BVPP
BVCC
NC
OC
3.3V
NC No internal connection
Pin 7 and 20 are NC for TPS2223A.
DESCRIPTION
TPS2220A, TPS2223A
TPS2224A, TPS2226A
SLVS428B – MAY 2002 – REVISED SEPTEMBER 2004
CARDBUS POWER-INTERFACE SWITCHES
FOR SERIAL PCMCIA CONTROLLERS
Notebook and Desktop Computers
Single-Slot Switch: TPS2220A
Dual-Slot Switches: TPS2223A, TPS2224A,
Bar Code Scanners
TPS2226A
Digital Cameras
Fast Current Limit Response Time
Set-Top Boxes
PDAs
Fully Integrated VCC and VPP Switching for
3.3 V, 5 V, and 12 V (no 12 V on TPS2223A)
Meets Current PC Card Standards
Vpp Output Selection Independent of VCC
12-V and 5-V Supplies Can Be Disabled
TTL-Logic Compatible Inputs
Short-Circuit and Thermal Protection
24-Pin HTSSOP, 24- or 30-Pin SSOP
140-A (Typical) Quiescent Current from
3.3-V Input
Break-Before-Make Switching
Power-On Reset
40
°C to 85°C Operating Ambient Temperature
Range
The TPS2223A, TPS2224A, and TPS2226A CardBus power-interface switches provide an integrated
power-management solution for two PC Card sockets. The TPS2220A is a single-slot option for this family of
devices. These devices allow the controlled distribution of 3.3 V, 5 V, and 12 V to each card slot. The
current-limiting and thermal-protection features eliminate the need for fuses. Current-limit reporting helps the user
isolate a system fault. The switch rDS(on) and current-limit values have been set for the peak and average current
requirements stated in the PC Card specification, and optimized for cost. A faster maximum current limit
response time is the only difference between the TPS2223A, TPS2224A, and TPS2226A and the TPS2223,
TPS2224, and TPS2226.
Like the TPS2214 and TPS2214A and the TPS2216 and TPS2216A, this family of devices supports independent
VPP/VCC switching; however, the standby and interface-mode pins are not supported. Shutdown mode is now
supported independently on SHDN as well as in the serial interface. Optimized for lower power implementation,
the TPS2223A does not support 12-V switching to VPP. See the available options table for pin-compatible device
information.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PC Card, CardBus are trademarks of PCMCIA (Personal Computer Memory Card International Association).
PowerPAD is a trademark of Texas Instruments.
PRODUCTION DATA information is current as of publication date.
Copyright 2002–2004, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
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