TL5001数据手册工业自动化与控制的可堆叠塔式照明元器件规格书PDF

描述 Description

The UTC TL5001 incorporates on a single monolithic chip all the functions required for a pulse width modulation (PWM) control circuit. Designed primarily for power-supply control, It contains an error amplifier, a regulator, an oscillator, a PWM comparator with a dead-time-control input, undervoltage lockout (UVLO), short-circuit protection (SCP), and an open-collector output transistor. The error-amplifier common-mode voltage ranges from 0V to 1.5V.The noninverting input of the error amplifier is connected to a 1-V reference. Dead-time control (DTC) can be set to provide 0% to 100% dead time by connecting an external resistor between DTC and GND. The oscillator frequency is set by terminating RT with anexternal resistor to GND. During low Vcc conditions, the UVLO circuit turns the output off until Vcc recovers to its normal operating range.

特性 Features

• Complete PWM power control  
• 3.6-V to 40-V operation
• Internal under voltage-lockout circuit
• Internal short-circuit protection
• Oscillator frequency : 20kHz to 500kHz
• Variable dead timer provides control over total range