Datasheet > TS4268CS50

TS4268CS50

更新时间： 2024-11-11 03:58:19

品牌	Logo	应用领域
TSC		稳压器
页数	文件大小	规格书
7页	255K
描述
180mA Ultra Low Dropout Voltage Regulator with Reset & Watchdog Function

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中文翻译

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TS4268CS50 数据手册

Preliminary

180mA Ultra Low Dropout Voltage Regulator

TS4268

with Reset & Watchdog Function

SOP-8

Pin Definition:

1. Input

8. Output

2. N/C

7. Watchdog

3. Reset Output 6. Radj

4. Ground 5. Reset Delay

General Description

TS4268 is a low dropout voltage regulator. The maximum input voltage is 45 V. It can deliver an output current of at

least 180mA. TS4268 is short circuit proof and features temperature protection that disables the circuit in the event of

impermissibly high temperatures. The watchdog function is disabled as a function of the load, so that a controller is not

interrupted during sleep mode by a watchdog reset.

Application Description

TS4268 regulates an input voltage in the range 5.5V ~ 45V. In the event of an output voltage Vout < V_RT, a reset signal

is generated. The wiring of the reset switching threshold input enables the value of V_RTto be reduced. The reset delay

time can be adjusted using an external capacitor. The integrated watchdog monitors the connected active controller. If

there is no positive going edge at the watchdog input, the reset output is set to low. The reset delay capacitor provides

a wide adjustment range for the pulse repetition time. The watchdog function is only activated if the load exceeds 8mA.

This ensures that a microcontroller is not activated during power-down and the current drain is not increased.

Features

Ordering Information

●

Output voltage tolerance < ± 2 %

Part No.

Package

SOP-8

Packing

Very low current consumption

Low-drop voltage

TS4268CS50 RL

2.5Kpcs/ 13” Reel

Watchdog

Settable reset threshold

Over temperature protection

Reverse polarity protection

Short-circuit proof

Suitable for use in automotive electronics

Wide temperature range

Pin Description

Pin No.

Symbol

Pin Description

Input Voltage. block to ground directly with ceramic capacitor

N/C

Not Connected

Reset Output. the open collector output is connected to the 5V output via an

integrated resistor of 30kΩ

GND

Ground

Reset Delay. connect a capacitor to ground for delay time adjustment.

Reset Switching Threshold. for setting the switching threshold, output to ground with

voltage divider. If this input is connected to ground, the reset is triggered at an output

voltage of 4.5V.

RADJ

Watchdog Input. positive-edge-triggered input for monitoring a microcontroller.

Output Voltage. block to ground with 22uF capacitor, ESR <3Ω

OUT

1/7

Version: Preliminary

12 3 4 5 6 7

中文翻译

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