
Microchip Technology
General Description
The TC170 offers maximum supply current of 3.8mA. Bipolar current-mode control integrated circuits require five times more operating current.
The dual totem-pole CMOS outputs drive power MOSFETs or bipolar transistors. The 50nsec typical output rise and fall times (1000pF capacitive loads) minimize MOSFET power dissipation. Output peak current is 300mA.
FEATUREs
• Low Supply Current With CMOS Technology:
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
• Undervoltage Lockout
• Wide Supply Voltage Operation: 8V to 16V
• High Frequency Operation: 200kHz
• Available with Low OFF State Outputs
• Low Power, Pin-Compatible Replacement for UC3846
APPLICATIONs
• Switching Power Supplies
• DC/DC Converters
• Motor Control