TC170 Description
The TC170 brings low-power CMOS technology to the current-mode-switching power supply controller market. Maximum supply current is 3.8 mA. Bipolar current-mode control integrated circuits require five times more operating current.
TC170 Key Features
- 3.8mA Max Internal Reference
- 5.1V Fast Rise/Fall Times (CL = 1000pF)
- 50nsec Dual Push-Pull Outputs Direct-Power MOSFET Drive High Totem-Pole Output Drive
- 300mA Differential Current-Sense Amplifier Programmable Current Limit Soft-Start Operation Double-Pulse Suppression Unde
- 8V to16V High Frequency Operation
- 200kHz Available with Low OFF State Outputs Low Power, Pin-patible Replacement for UC3846
- ERROR AMPLIFIER 350mV LOCK-UP AMPLIFIER
- + POSITIVE FEEDBACK 3.5k Ω Q1 Q2
- + × 3.15 CURRENT AMPLIFIER +
- 0.75V PWM PARATOR S