TPS22920开发板套件编程器的评估演示板及套件规格书PDF中文资料

TPS22920属于开发板套件编程器的评估演示板及套件。由德州仪器制造生产的TPS22920评估和演示板及套件该系列产品提供了一种方便的方法，在经过验证的实施环境中评估某些重点器件的性能或特性。评估方法通常有完善的文档说明，并且视乎具体情况由评估软件提供支持。产品通常由印刷电路板组成，板上已装有重点器件以及必要或有用的支持元器件，另外也可能包括其他组件，例如电缆或电源。对于数量特别多或类别独特的器件类别(如 ADC、DAC 和开关模式电源)，评估平台可组合为一个单独的产品系列。

1 Features

1• Input Voltage Range: 0.75 V to 3.6 V

• Integrated Load Switch

• Integrated Pass-FET rDSON = 2 mΩ (Typ) at 3.6 V

• Typical ON-Resistance

– rON = 5.3 mΩ at VIN = 3.6 V

– rON = 5.4 mΩ at VIN = 2.5 V

– rON = 5.5 mΩ at VIN = 1.8 V

– rON = 5.8 mΩ at VIN = 1.2 V

– rON = 6.1 mΩ at VIN = 1.05 V

– rON = 7.3 mΩ at VIN = 0.75 V

• CSP-8 Package 0.9 mm × 1.9 mm, 0.5 mm Pitch

• 4-A Maximum Continuous Switch Current

• Shutdown Current 5.5-μA Max

• ON-Logic Available in Both Active High/Low:

– TPS22920 is Active High

– TPS22920L is Active Low

• Low Threshold Control Input

• Controlled Slew-Rate to Avoid Inrush Current

• Quick Output Discharge Resistor

• ESD Performance Tested Per JESD 22

– 4000-V Human-Body Model

(A114-B, Class II)

– 1000-V Charged-Device Model (C101)

2 Applications

• Notebook / Netbook Computer

• Tablet PC

• PDAs / Smartphones

• GPS Navigation Devices

• MP3 Players

3 Description

The TPS22920x is a small, space-saving load switch

with controlled turn on to reduce inrush current. The

device contains a N-channel MOSFET that can

operate over an input voltage range of 0.75 V to 3.6

V and switch currents up to 4 A. An integrated charge

pump biases the NMOS switch in order to achieve a

minimum switch ON resistance (rON). The switch is

controlled by an on/off input (ON), which is capable of

interfacing directly with low-voltage control signals.

The TPS22920x has a 1250-Ω on-chip resistor for

quick output discharge when the switch is turned off

which insures that the output is not left floating.

The TPS22920x has an internally controlled rise time

in order to reduce inrush current.

The TPS22920x is available in an ultra-small, spacesaving

8-pin CSP package and is characterized for

operation over the free-air temperature range of

–40°C to 85°C.