产品[
TLE4275
]资料
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产品名称:
TLE4275
产品型号:
TLE4275
产品厂商:
上海霖叶微电子有限公司
产品文档:
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产品价格:
0.00 元
折扣价格:
0.00 元
简单介绍
The TLE 4275 is a monolithic integrated low-dropvoltage regulator in a 5 pin TO-package. An inputvoltage up to 45 V is regulated to VQ = 5.0 V. The IC isable to drive loads up to 450 mA and is short-circuitproof. At over temperature the TLE 4275 is disabled bythe incorporated temperature protection. A reset signalis generated for an output voltage VQ of typ. 4.65 V.The delay time can be programmed by the externaldelay capacitor.
TLE4275的详细介绍
The input capacitor CI is necessary for compensating line influences. Using a resistor of
approx. 1 W in series with CI, the oscillating of input inductivity and input capacitance can
be damped. The output capacitor CQ is necessary for the stability of the regulation circuit.
Stability is guaranteed at values CQ ³ 22 mF and an ESR of £ 5 W within the operating
temperature range.
Circuit Description
The control amplifier compares a reference voltage to a voltage that is proportional to the
output voltage and drives the base of the series transistor via a buffer. Saturation control
as a function of the load current prevents any oversaturation of the power element. The
IC also incorporates a number of internal circuits for protection against:
• Overload
• Over-temperature
• Reverse polarity