LM5025MTC/NOPB

TEXAS INSTRUMENTS  LM5025MTC/NOPB  控制器, PWM电压, 90V-13V电源, 1 MHz, 10mA输出, TSSOP-16

The is a Pulse Width Modulated PWM Controller contains all of the features necessary to implement power converters using the active clamp and reset technique. The device can be configured to control either a P-channel clamp switch or an N-channel clamp switch. With the active clamp technique, higher efficiencies and greater power densities can be realized compared to conventional catch winding or RDC clamp and reset techniques. Two control outputs are provided, the main power switch control OUT_A and the active clamp switch control OUT_B. The active clamp output can be configured for either a specified overlap time for P-channel switch applications or a specified deadtime for N-channel applications. The two internal compound gate drivers parallel both MOS and bipolar devices, providing superior gate drive characteristics.

.

Internal start-up bias regulator

.

3A Compound main gate driver

.

Programmable line under voltage lockout UVLO with adjustable hysteresis

.

Voltage mode control with feed-forward

.

Adjustable dual-mode overcurrent protection

.

Programmable overlap or dead time between the main and active clamp outputs

.

Programmable soft-start

.

Leading edge blanking

.

Single resistor programmable oscillator

.

Oscillator UP and DOWN Sync capability

.

Thermal shutdown

Device has limited built-in ESD protection, leads should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage to the MOS gates.