GENERAL DESCRIPTION

The TC38C43 is a current mode BiCMOS PWM control IC. With a low 1.0 mA supply current along with high drive current (0.7A peak) it provides a low cost solution for a PWM that operates to 500 kHz and directly drives MOSFETs up to HEX 3 size.

FEATURES

■ Low Power BiCMOS Design

■ Tough CMOSTM Construction

■ Low Supply Current ............. 1.0mA Typ @ 100kHz

■ Wide Supply Voltage Operation .............. 8V to 15V

■ Latch-Up Immunity ................... 500mA on Outputs

■ Input Will Withstand Negative Inputs to – 5 Volts

■ High Output Drive .................................... 0.7A Peak (1.2A on 14-Pin and 16-Pin Versions)

■ 2 kV ESD Protection

■ Current Mode Control

■ Fast Rise/Fall Time (Max)........... 60nsec @ 1000pF

■ High Frequency Operation ..........................500kHz

■ Clock Ramp Reset Current ................. 2.5mA ±10

■ Low Propagation Delay Current Amp to Output ............................................ 140nsec Typ.

■ Pin Compatible with UC3843