NCP1207ADR2G

Product Summary

The NCP1207ADR2G is a PWM Current-Mode Controller. It implements a standard current mode architecture where the switch off time is dictated by the peak current setpoint whereas the core reset detection triggers the turn on event. This component represents the ideal candidate where low part count is the key parameter, particularly in low cost AC/DC adapters, consumer electronics, auxiliary supplies, etc. Thanks to its high performance High Voltage technology, the NCP1207ADR2G incorporates all the necessary components/features needed to build a rugged and reliable Switch Mode Power Supply (SMPS).

Parametrics

NCP1207ADR2G absolute maximum ratings:(1)Power Supply Voltage, VCC, Drv: 16V; (2)Maximum Voltage on all other pins except Pin 8 (HV), Pin 6 (VCC) Pin 5 (Drv) and Pin 1 (Demag):0.3 to 10V; (3)Maximum Current into all pins except VCC (6), HV (8) and Demag (1) when 10 V ESD diodes are activated: 5.0 mA; (4)Maximum Current in Pin 1, Idem: +3.0/2.0 mA; (5)Thermal Resistance, Junctionto Case, RθJC: 57 ℃/W; (6)Thermal Resistance, SOIC version, RθJA 178 ℃/W; (7)Thermal Resistance;Air, DIP8 version, RθJA 100 ℃/W; (8)Operating Junction Temperature, Tj: 40 to +125℃; (9)Maximum Junction Temperature, TJMAX: 150℃; (10)Temperature Shutdown: 155℃; (11)Hysteresis in Shutdown: 30℃; (12)Storage Temperature Range: 60 to +150℃; (13)ESD Capability, HBM Model (All pins except HV): 2.0kV; (14)ESD Capability, Machine Model: 200V; (15)Maximum Voltage on Pin 8 (HV), Pin 6 (VCC) decoupled to ground with 10μF, VHVMAX: 500V; (16)Minimum Voltage on Pin 8 (HV), Pin 6 (VCC) decoupled to ground with 10μF, VHVMIN: 40V.

Features

NCP1207ADR2G features:(1)Free Running Borderline/Critical Mode Quasi Resonant Operation; (2)Current Mode with Adjustable Skip Cycle Capability; (3)No Auxiliary Winding VCC Operation; (4)Auto Recovery Overcurrent Protection; (5)Latching Overvoltage Protection; (6)External Latch Triggering, e.g. Via Overtemperature Signal; (7)500 mA Peak Current Source/Sink Capability; (8)Undervoltage Lockout for VCC Below 10 V; (9)Internal 1.0 ms Soft Start; (10)Internal 8.0 s Minimum TOFF; (11)Adjustable Skip Level; (12)Internal Temperature Shutdown; (13)Direct Optocoupler Connection; (14)SPICE Models Available for TRANsient Analysis; (15)Pb?Free Package is Available.

Diagrams