LM494CJ中文资料Pulse Width Modulated Control Circuit数据手册TI规格书

描述 Description

General Description
The LM494 is a monolithic integrated circuit which includes all the necessary building blocks for the design of pulse width modulated (PWM) switching power supplies, including push-pull, bridge and series configurations. The device can operate at switching frequencies between 1.0 kHz and 300 kHz and output voltages up to 40V. The operating temperature range specified for the LM494C is 0°C to 70°C and
for the LM494V is -40°C to +85°C.

特性 Features

Uncommitted output transistors capable of 200 mA source or sink
On-chip error amplifiers
On-chip 5.0V reference
Internal protection from double pulsing of outputs with narrow pulse widths or with supply voltages below specified limits
Dead time control comparator
Output control selects single ended or push-pull operation
Easily synchronized (slaved) to other circuits