Datasheet > TLE4287G_09

TLE4287G_09

更新时间： 2024-11-26 05:54:47

品牌	Logo	应用领域
英飞凌 - INFINEON		稳压器
页数	文件大小	规格书
13页	302K
描述
5-V Voltage Regulator Input voltage up to 42 V

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TLE4287G_09 数据手册

5-V Voltage Regulator

TLE 4287 G

Features

• Output voltage tolerance ≤ ±2%

• Very low standby current consumption

• Input voltage up to 42 V

• Reset function down to 1 V output voltage

• Adjustable reset time

• On/Off logic

• Overtemperature protection

• Reverse polarity protection

• Short-circuit proof

• Very wide temperature range

• Very small output capacitor

• Green Product (RoHS compliant)

• AEC Qualified

Functional Description

The TLE 4287 G is a monolithic integrated 5 V voltage regulator in PG-DSO-14

package. It supplies an output current I_Q> 250 mA. The IC is short circuit proof and

incorporates temperature protection which turns off the device at overtemperature.

The input voltage V_Iis regulated in the range of 7.5 V < V_I< 40 V to V_Q,nom= 5 V.

Therefore a reference voltage, which is kept highly accurate by resistance adjustment,

is compared via a control amplifier to a voltage that is proportional to the output voltage.

The control amplifier drives the base of the series transistor by a buffer.

A comparator in the reset-generator block compares a reference voltage that is

independent of the input voltage to the scaled-down output voltage. In the case of an

output voltage V_Q< 4.5 V the reset delay capacitor is discharged and a reset signal is

generated by setting the reset output LOW. The reset delay time can be set by choosing

the external capacitor over a wide range. When the output voltage rises above V_Q≥ 4.5 V

the reset delay capacitor is charged again. As soon as the delay capacitor voltage

reaches the upper switching threshold the reset output pin is set HIGH again.

Type

Package

TLE 4287 G

PG-DSO-14

Data Sheet

Rev. 1.4, 2009-01-12

12 3 4 5 6 7...13

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