Datasheet > TPS22970

TPS22970

更新时间： 2024-11-15 11:13:07

品牌	Logo	应用领域
德州仪器 - TI		开关
页数	文件大小	规格书
25页	1228K
描述
具有输出放电功能的 3.6V、4A、4.7mΩ 负载开关

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TPS22970

SLVSDF2A –MAY 2017–REVISED JULY 2017

TPS22970 3.6-V, 4-A, 4.7-mΩ On-Resistance Load Switch

1 Features

3 Description

The TPS22970 is a small, space-saving load switch

•

Input Voltage Range (V_IN): 0.65 V to 3.6 V

On-Resistance

with controlled Turn-ON to reduce inrush current. The

device contains an N-channel MOSFET that can

operate over an input voltage range of 0.65 V to 3.6

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

charge pump biases the NMOS switch in order to

achieve a minimum switch ON resistance (R_ON). The

switch is controlled by an on and off input (ON),

which is capable of interfacing directly with low-

voltage control signals.

–

R_ON= 4.7 mΩ (Typical) at V_IN≥ 1.8 V

R_ON= 5.1 mΩ (Typical) at V_IN= 1.05 V

R_ON= 6.4 mΩ (Typical) at V_IN= 0.65 V

•

Maximum Continuous Switch Current (I_MAX): 4 A

ON State (I_Q): 30 µA (Typical) at V_IN> 1.2 V

OFF State (I_SD): 1 µA (Typical) at V_IN> 1.8 V

Controlled Slew Rate to Avoid Inrush Current

The TPS22970 is capable of thermal shutdown when

the junction temperature is above the threshold,

turning the switch off. The switch turns on again when

the junction temperature stabilizes to a safe range.

–

3.6 V Turn-ON time (t_ON): 1530 μs

0.65 V Turn-ON time (t_ON): 815 μs

•

Low Threshold Enable (ON) Supports Use of

Logic as Low as 0.9 V (V_IH) of Logic

The TPS22970 has a 150-Ω on-chip resistor for quick

discharge of the output when switch is disabled to

avoid any unknown state caused by floating supply to

the downstream load.

•

Thermal Shutdown (T_SD

)

Quick Output Discharge (QOD): 150-Ω (Typical)

The TPS22970 has an internally controlled rise time

in order to reduce inrush current.

2 Applications

•

Notebook, Tablet

Industrial PC

Smartphones

Telecom

The TPS22970 is available in an ultra-small, space

saving 8-pin WCSP package and is characterized for

operation over the free-air temperature range of

–40°C to +105°C.

Device Information⁽¹⁾

Storage

PART NUMBER

PACKAGE

BODY SIZE (NOM)

TPS22970YZPT

DSBGA (8)

1.90 mm × 0.90 mm

(1) For all available packages, see the orderable addendum at

the end of the data sheet.

Typical Application

V_OUT

V_IN

Power Supply

V_OUT

C_L

C_IN

R_L

V_OUT

TPS22970

GND

OFF

An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,

intellectual property matters and other important disclaimers. PRODUCTION DATA.

12 3 4 5 6 7...25

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与TPS22970相关器件

型号	品牌	获取价格	描述	数据表
TPS22970YZPR	TI	获取价格	具有输出放电功能的 3.6V、4A、4.7mΩ 负载开关 \| YZP \| 8 \| -40
TPS22970YZPT	TI	获取价格	具有输出放电功能的 3.6V、4A、4.7mΩ 负载开关 \| YZP \| 8 \| -40
TPS22971	TI	获取价格	具有可调节上升时间、电源正常指示和输出放电功能的 3.6V、3A、6.7mΩ 负载开关
TPS22971YZPR	TI	获取价格	具有可调节上升时间、电源正常指示和输出放电功能的 3.6V、3A、6.7mΩ 负载开关 \|
TPS22971YZPT	TI	获取价格	具有可调节上升时间、电源正常指示和输出放电功能的 3.6V、3A、6.7mΩ 负载开关 \|
TPS22975	TI	获取价格	具有可调节上升时间、可选输出放电和热关断功能的 5.7V、6A、16mΩ 负载开关
TPS22975DSGR	TI	获取价格	具有可调节上升时间、可选输出放电和热关断功能的 5.7V、6A、16mΩ 负载开关 \| D
TPS22975DSGT	TI	获取价格	具有可调节上升时间、可选输出放电和热关断功能的 5.7V、6A、16mΩ 负载开关 \| D
TPS22975NDSGR	TI	获取价格	具有可调节上升时间、可选输出放电和热关断功能的 5.7V、6A、16mΩ 负载开关 \| D
TPS22975NDSGT	TI	获取价格	具有可调节上升时间、可选输出放电和热关断功能的 5.7V、6A、16mΩ 负载开关 \| D

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