M62281P

MITSUBISHI SEMICONDUCTOR < STANDERD LINEAR IC > M62281P/FP M62281P/FP GENERAL GENERAL PURPOSE PURPOSE CURRENT CURRENT MODE MODE PWM PWM CONTROL CONTROL IC IC DESCRIPTION M62281P/FP is designed as a high speed current mode PWM control IC. This small10 pin package contains many functions and protection circuits allowing simpler peripheral circuit and compact set design. This IC can operate high speed switching (700kHz max.) with high speed current sense comparator and current limiting circuit. PIN CONFIGURATION (TOP VIEW) VOUT 1 GND CLM 2 3 10 Vcc 9 8 7 EA IN EA OUT CT FEATURES CURRENT 4 SENSE CF 5 700kHz applicable to MOS-FET Output current Io(peak) = ±1A OUTLINE 10P2N-A Totem pole output VOUT 1 14 CURRENT SENSE terminal separate form CLM terminal makes SMPS strong in noise. 13 EMIT 2 High speed pulse-by-pulse current limiting GND 3 12 Timer type latch protection circuit with OVP(external reset is possible) Soft start operation is possible (with dead time control) 11 CLM 4 Built-in OPAmp for feedback control (photo coupler can be driven) CURRENT 5 10 Small start-up current 180µA SENSE Start-up voltage 12.5V, Stop voltage 8.3V CF 6 9 6 SOFT COLLECT Vcc EA IN EA OUT CT SOFT APPLICATION Switching Regulator DC-DC converter N.C 7 OUTLINE 14P4 8 N.C Vcc CLM UVLO CLM COMP CT (OVP) TIMER LATCH 0.2V S CLM LATCH R :note COLLECT CS COMP VOUT R PWM LATCH S :note EA IN EMIT 2.5V OSC. GND EA OUT SOFT DUTY SET-UP CURRENT CF SENSE note: GND terminal is c...