TPS2421-1

更新时间： 2024-11-10 05:52:23

品牌	Logo	应用领域
德州仪器 - TI		/
页数	文件大小	规格书
22页	1445K
描述
3-V to 20-V Integrated FET Hot Swap

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TPS2421-1 数据手册

TPS2421-1

TPS2421-2

www.ti.com .................................................................................................................................................. SLUS907A–JANUARY 2009–REVISED MARCH 2009

3-V to 20-V Integrated FET Hot Swap

FEATURES

DESCRIPTION

•

Integrated Pass MOSFET

3.3-V to 20-V Bus Operation

Programmable Fault Current

The TPS2421 provides highly integrated hot swap

power management and superior protection in

applications where the load is powered by voltages

between 3.0 V and 20 V. These devices are very

effective in systems where a voltage bus must be

protected to prevent shorts from interrupting or

damaging the unit. The TPS2421 is an easy to use

devices in an 8-pin PowerPad™ SO-8 package.

Current Limit Proportionally Larger than Fault

Current

•

Programmable Fault Timer

Internal MOSFET Power Limiting

Latch-Off on Fault (-1) and Retry (-2) Versions

SO-8 PowerPad™ Package

The TPS2421 has multiple programmable protection

features. Load protection is accomplished by a

non-current limiting fault threshold, a hard current

limit, and a fault timer. The current dual thresholds

allow the system to draw short high current pulses,

while the fault timer is running, without causing a

voltage droop at the load. An example of this is a disk

drive startup. This technique is ideal for loads that

experience brief high demand, but benefit from

protection levels in-line with their average current

draw.

–40°C to 125°C Junction Temperature Range

APPLICATIONS

•

RAID Arrays

Telecommunications

Plug-In Circuit Boards

Disk Drive

Hotswap MOSFET protection is provided by power

limit circuitry which protects the internal MOSFET

against SOA related failures.

The TPS2421 is available in latch-off on fault (-1) and

retry on fault (-2).

3 V to 20 V IN

VIN

VOUT

FLT

OUT

(A)

GND

ISET

C_VIN

(A)

C_OUT

(A)

Figure 1. Typical Application

NOTE:

(A) Required only in systems with lead and/or load inductance.

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.

PowerPad is a trademark of Texas Instruments.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.

12 3 4 5 6 7...22

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与TPS2421-1相关器件

型号	品牌	获取价格	描述	数据表
TPS2421-1DDA	TI	获取价格	3-V to 20-V Integrated FET Hot Swap
TPS2421-1DDAR	TI	获取价格	3-V-20-V, 33mΩ, 1.8-5.5A eFuse 8-SO PowerPAD -40 to 125
TPS2421-2	TI	获取价格	3-V to 20-V Integrated FET Hot Swap
TPS2421-2DDA	TI	获取价格	3-V to 20-V Integrated FET Hot Swap
TPS2421-2DDAR	TI	获取价格	具有热关断功能的 3V 至 20V、33mΩ、1.8A 至 5.5A 电子保险丝 \| DD
TPS2456	TI	获取价格	Dual 12 V Protection / Blocking Controller
TPS2456A	TI	获取价格	Dual 12 V Protection and Blocking Controller
TPS2456ARHH	TI	获取价格	Dual 12 V Protection and Blocking Controller
TPS2456ARHHR	TI	获取价格	Dual 12 V Protection and Blocking Controller
TPS2456ARHHT	TI	获取价格	Dual 12 V Protection and Blocking Controller

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