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《TI-TPS2211：单插槽PC卡电源接口开关》 TI-TPS2211是一款专为并行PCMCI控制器设计的单插槽PC卡电源接口开关，由德州仪器（Texas Instruments）采用LinBiCMOS工艺制造。这款芯片集成了所有必要的电源MOSFET、逻辑部分、电流限制以及热保护功能，为PC卡提供了一套完整的电源管理解决方案。主要特性： 1. **低rDS(on)**：TI-TPS2211具有低导通电阻，5V VCC开关的rDS(on)仅为90毫欧，3.3V VCC开关的rDS(on)也较低，这确保了高效能的电源转换，减少了功率损失。 2. **兼容性**：该芯片兼容Cirrus、Ricoh、O2Micro、Intel和Texas Instruments等多家厂商的控制器，符合多种标准，适用于广泛的PC卡应用。 3. **3.3V低压模式**：支持3.3V电源切换，无需5V电源。在低功耗系统设计如睡眠模式或仅使用3.3V电源的设备（如掌上电脑和条形码扫描器）中，此特性尤其有用。 4. **12V供应控制**：12V电源可以在除闪存编程期间之外被禁用，降低了功耗，并保护系统免受潜在过电压的影响。 5. **短路与热保护**：内置的短路保护和热保护机制可以防止因过载导致的损坏，增强了系统的稳定性和可靠性。 6. **空间节省的封装**：采用16引脚小型轮廓SSOP封装（DB），减小了板级空间占用，方便在紧凑型设计中使用。 7. **断电前切换**：断电前切换功能确保了在电源切换过程中不会出现瞬间的电源中断，提高了系统稳定性。 8. **电流限制报告**：当发生过流时，芯片能够报告当前限制，帮助用户快速定位系统故障至PC卡，提升了故障排查效率。该器件适用于笔记本电脑、台式电脑、个人数字助理（PDA）、数码相机以及条形码扫描器等终端设备。TI提供了不同封装选项，如DB封装（仅提供带R后缀的带状和卷盘包装）和Y封装，工作温度范围为-40°C至85°C。 TI-TPS2211是一款高集成度、低功耗、高性能的电源管理芯片，旨在满足现代电子设备对电源管理的严格要求，特别是在单插槽PC卡应用中，它提供了高效、安全且节省空间的电源接口解决方案。

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TPS2211

SINGLE-SLOT PC CARD POWER INTERFACE SWITCH

FOR PARALLEL PCMCIA CONTROLLERS

SLVS156E – JULY 1997 – REVISED JANUARY 2001

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

Fully Integrated V

and V

Switching for

Single-Slot PC Card Interface

Low r

DS(on)

(90-mΩ 5-V V

Switch and

3.3-V V

Switch)

Compatible With Controllers From Cirrus,

Ricoh, O

Micro, Intel, and Texas

Instruments

3.3-V Low-Voltage Mode

Meets PC Card Standards

12-V Supply Can Be Disabled Except

During 12-V Flash Programming

Short-Circuit and Thermal Protection

Space-Saving 16-Pin SSOP (DB)

Compatible With 3.3-V, 5-V, and 12-V

PC Cards

Break-Before-Make Switching

description

The TPS2211 PC Card power-interface switch provides an integrated power-management solution for a single

PC Card. 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, using the Texas Instruments LinBiCMOS process. The

circuit allows the distribution of 3.3-V, 5-V, and/or 12-V 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 TPS2211 features a 3.3-V low-voltage mode that allows for 3.3-V switching without the need for 5 V. Bias

power can be derived from either the 3.3-V or 5-V inputs. This facilitates low-power system designs such as

sleep mode and pager mode where only 3.3 V is available.

End equipment for the TPS2211 includes notebook computers, desktop computers, personal digital assistants

(PDAs), digital cameras, and bar-code scanners.

AVAILABLE OPTIONS

PACKAGED DEVICE

CHIP FORM

SMALL OUTLINE

(DB)

CHIP

FORM

(Y)

–40°C to 85°C TPS2211IDBR TPS2211Y

The DB package is only available taped and reeled, indicated by the

R suffix on the device type.

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.

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 is a trademark of PCMCIA (Personal Computer Memory Card International Association).

LinBiCMOS is a trademark of Texas Instruments Incorporated.

VCCD0

VCCD1

3.3V

GND

SHDN

VPPD0

VPPD1

AVCC

AVPP

12V

DB PACKAGE

(TOP VIEW)

TPS2211

SINGLE-SLOT PC CARD POWER INTERFACE SWITCH

FOR PARALLEL PCMCIA CONTROLLERS

SLVS156E – JULY 1997 – REVISED JANUARY 2001

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

Terminal Functions

TERMINAL

I/O

DESCRIPTION

NAME NO.

I/O

DESCRIPTION

3.3V 3, 4 I 3.3-V V

input for card power and/or chip power if 5 V is not present

5V 5, 6 I 5-V V

input for card power and/or chip power

12V 9 I 12-V V

input card power

AVCC 11, 12, 13 O Switched output that delivers 0 V, 3.3-V, 5-V, or high impedance to card

AVPP 10 O Switched output that delivers 0 V 3.3-V, 5-V, 12-V, or high impedance to card

GND 7 Ground

OC 8 O Logic-level overcurrent reporting output that goes low when an overcurrent conditions exists

SHDN 16 I Logic input that shuts down the TPS2211 and sets all power outputs to high-impedance state

VCCD0 1 I Logic input that controls voltage of AVCC (see control-logic table)

VCCD1 2 I Logic input that controls voltage of AVCC (see control-logic table)

VPPD0 15 I Logic input that controls voltage of AVPP (see control-logic table)

VPPD1 14 I Logic input that controls voltage of AVPP (see control-logic table)

absolute maximum ratings over operating free-air temperature (unless otherwise noted)

†

Input voltage range for card power: V

I(5V)

–0.3 V to 7 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

I(3.3V)

–0.3 V to 7 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

I(12V)

–0.3 V to 14 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Logic input voltage –0.3 V to 7 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Continuous total power dissipation See Dissipation Rating Table. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Output current (each card): I

O(VCC)

internally limited. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

O(VPP)

internally limited. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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

stg

–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 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.

DISSIPATION RATING TABLE

PACKAGE

≤ 25°C

POWER RATING

DERATING FACTOR

ABOVE T

= 25°C

= 70°C

POWER RATING

= 85°C

POWER RATING

DB 775 mW 6.2 mW/°C 496 mW 403 mW

These devices are mounted on an FR4 board with no special thermal considerations.

recommended operating conditions

MIN MAX UNIT

I(5V)

0 5.25 V

Input voltage, V

I(3.3V)

0 5.25 V

I(12V)

0 13.5 V

Out

ut current

O(AVCC)

1 A

Output

current

O(AVPP)

150 mA

Operating virtual junction temperature, T

–40 125 °C

剩余23页未读，继续阅读

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