NCP1217D65R2G

Product Summary

The NCP1217D65R2G is an Enhanced PWM Current-Mode Controller. Housed in an SO-8 or PDIP-7 package, the NCP1217D65R2G represents the enhanced version of the NCP1203-based controllers. Thanks to its high drive capability, the NCP1217D65R2G drives large gate-charge MOSFETs, which together with internal ramp compensation and built-in overvoltage protection, ease the design of modern AC/DC adapters. The NCP1217D65R2G offers a true alternative to UC384X-based designs. With an internal structure operating at different fixed frequencies (65–100–133 kHz), the controller features a high-voltage startup FET, which ensures a clean and loss less startup sequence. The applications of the NCP1217D65R2G include High Power AC/DC Converters for TVs, Set-Top Boxes, etc., Offline Adapters for Notebooks, Telecom DC-DC Converters, All Power Supplies.

Parametrics

NCP1217D65R2G absolute maximum ratings: (1)Power Supply Voltage, VCC: 16 V; (2)Power Supply Voltage on All Other Pins Except Pin 8 (HV), Pin 6 (VCC) and Pin 5 (Drv): -0.3 to 10 V; (3)Maximum Voltage on Pin 8 (HV), Pin 6 (VCC) Decoupled to Ground with 10μF, VHV: 500 V; (4)Maximum Voltage on Pin 8 (HV), Pin 6 (VCC) Grounded, VHV: 450 V; (5)Maximum Current into All Pins Except VCC (6) and HV (8) when 10 V ESD Diodes are Activated: 5.0 mA; (6)Thermal Resistance, Junction-to-Case RθJC: 57℃/W; (7)Thermal Resistance, Junction-to-Air, PDIP-7 Version, RθJA: 100℃/W; (8)Thermal Resistance, Junction-to-Air, SO-8 Version, RθJA: 178℃/W; (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 VCC and HV): 2.0 kV; (14)ESD Capability, Machine Model: 200 V.

Features

NCP1217D65R2G features: (1)Current-Mode with Adjustable Skip-Cycle Capability; (2)Built-in Internal Ramp Compensation; (3)Auto?Recovery Internal Output Short-Circuit Protection; (4)Internal 1.0 ms Soft-Start (A Version Only); (5)Limited Duty-Cycle to 50% (A Version Only); (6)Full Latchoff if Adjustment Pin is Brought High; (7)Extremely Low No-Load Standby Power; (8)Internal Temperature Shutdown; (9)500 mA Peak Current Capability; (10)Fixed Frequency Versions at 65 kHz, 100 kHz and 133 kHz; (11)Direct Optocoupler Connection; (12)Internal Leading Edge Blanking; (13)SPICE Models Available for TRANsient and AC Analysis; (14)Pb-Free Packages are Available.

Diagrams