器件名称:
TC25C25EPE
功能描述:
BICMOS PWM CONTROLLERS
文件大小:
88.24KB 共7页
简 介:
1 TC25C25 TC35C25 BICMOS PWM CONTROLLERS FEATURES s s s s s s s s s s s s s Low Power BICMOS Construction Low Supply Current at 20 kHz ............... 1.0mA Typ Latch-Up Immunity ................. >500mA on Outputs Below Rail Input Protection .............................. – 5V High Output Drive ................................ 500mA Peak Fast Rise/Fall Time ..................... 50nsec @ 1000pF High Frequency Operation .................. Up to 1MHz Tri-state Sync Pin for Easy Parallel Operation Under Voltage Hysteresis Guaranteed Shutdown Pin Available Double-Ended Soft Start, With Small Cap Low Prop Delay Shutdown to Output ................................................. 140nsec Typ. GENERAL DESCRIPTION The TC35C25 family of PWM controllers are CMOS implementations of the industry standard 3525 voltage mode SMPS ICs. These second generation CMOS devices employ TelCom Semiconductors' Tough BiCMOS process for latch-up proof operation. They offer much lower power consumption than any of their previous CMOS or bipolar counterparts. These controllers have separate supply pins for the control and output sections of the circuit. This allows "bootstrap" operation. The CMOS output stage allows the output voltage to swing to within 25mV of either rail. Other improved features include tighter hysteresis and undervoltage start-up specifications over temperature, and very low input bias current on all inputs. 2 3 ORDERING INFORMATION Part No. TC25C25EOE TC25C25EPE TC35C25COE TC35C……
