TS3404CS

The TS3404CS belongs toTS3404 family which integrates Pulse Width Modulation (PWM) control circuit into a single chip, and makes simple work out of implementing a complete control and protection scheme for a DC-DC step-down converter and the family is design for adjustable switching frequency by trimming time capacitor (CT), during low supply voltage situation, the under voltage lock out (UVLO) makes sure that the output are off until the internal circuit operates normally. The TS3404CS is offered in DIP-8 and SOP-8 package. The TS3404CS provides simple feedback loop compensation, 1.25V reference output, error amplifier, adjustable oscillator, soft start, under voltage lock out (UVLO), short circuit protection(SCP) circuitry, and push pull output circuit.

The features of TS3404CS can be summarized as (1)PWM buck control circuit; (2)operating voltage can be up to 27V; (3)under voltage lock out (UVLO) protection; (4)soft start (SS) circuit; (5)short circuit Protection (SCP); (6)variable oscillator frequency 300KHz (max); (7)1.25V voltage reference output.

The absolute maximum ratings of TS3404CS are (1)supply voltage VCC: 28 V; (2)amplifier input voltage VI: 20 V; (3)collector output voltage VO: Vcc~1.0V V; (4)source current ISOURCE: 200 mA; (5)sink current I SINK : 200 mA; (6)operating junction temperature range TJ:-20 ~ +150 ; (7)storage temperature range TSTG: -65 ~ +150 ; (8)lead temperature 1.6mm(1/16") from case for 10Sec. TLEAD:260 .