參數(shù)資料
型號(hào): TLE4287G
廠商: INFINEON TECHNOLOGIES AG
英文描述: 5-V Voltage Regulator
中文描述: 5 - V電壓調(diào)節(jié)器
文件頁數(shù): 1/13頁
文件大?。?/td> 158K
代理商: TLE4287G
P-DSO-14-8
5-V Voltage Regulator
TLE 4287 G
Data Sheet Version 1.3
1
2001-09-12
Features
Output voltage tolerance
≤ ±
2%
Very low standby current consumption
Input voltage up to 42 V
Reset function down to 1 V output voltage
ESD protection up to 2000 V
Adjustable reset time
On/Off logic
Overtemperature protection
Reverse polarity protection
Short-circuit proof
Very wide temperature range
Very small output capacitor
New type
Functional Description
The
TLE 4287 G
is a monolithic integrated 5 V voltage regulator in
P-DSO-14-8
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
I
is 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
TLE 4287 G
Ordering Code
Q67006-A9286
Package
P-DSO-14-8 (SMD)
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