Microchip Technology TC170
The TC170 offers maximum supply current of 3.8mA. 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.| Part No. | TC170 |
|---|---|
| Datasheet | TC170 Download |
| Manufacturer |  Microchip Technology |
| Description | CMOS Current Mode PWM Controller |
| Buy | Stock & Price |
FEATURES
● Low Supply Current With CMOS Technology: 3.8mA Max● Internal Reference: 5.1V
● Fast Rise/Fall Times (C L = 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
GENERAL DESCRIPTION
The TC170 offers maximum supply current of 3.8mA. Bipolar current-mode control integrated circuits require five times more operating current. Output peak current is 300mA. The TC170 contains a full array of system-protection circuits (seeFEATURES
Section). Current-mode control lets users parallel power supply modules. Two or more TC170 controllers can be slaved together for parallel operation. Circuits can operate from a master TC170 internal oscillator or an external system oscillator.
