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FAN302HLMY_F117 Datasheet(PDF) 1 Page - Fairchild Semiconductor |
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FAN302HLMY_F117 Datasheet(HTML) 1 Page - Fairchild Semiconductor |
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1 / 18 page  June 2012 © 2012 Fairchild Semiconductor Corporation www.fairchildsemi.com FAN302HLMY_F117 • Rev. 1.0.1 FAN302HLMY_F117 PWM Controller for Low Standby Power Battery- Charger Applications — mWSaver™ Technology Features mWSaver™ Technology Provides Industry’s Best-in-Class Standby Power - Achieves <10mW Below Energy Star’s 5-Star Level: <30mW - Proprietary 500V High-Voltage JFET Startup Reduces Startup Resistor Loss - Low Operation Current in Burst Mode: 350µA Maximum Constant-Current (CC) Control without Secondary- Feedback Circuitry Fixed PWM Frequency at 85kHz with Frequency Hopping to Reduce EMI High-Voltage Startup Low Operating Current: 3.5mA Peak-Current-Mode Control with Slope Compensation Cycle-by-Cycle Current Limiting VDD Over-Voltage Protection (Auto-Restart) VS Over-Voltage Protection (Latch Mode) VDD Under-Voltage Lockout (UVLO) Gate Output Maximum Voltage Clamped at 15V Fixed Over-Temperature Protection (Latch Mode) Available in an 8-Lead SOIC Package Applications Battery Chargers for Cellular Phones, Cordless Phones, PDAs, Digital Cameras, and Power Tools Replaces Linear Regulators and RCC SMPS Description The FAN302HLMY_F117 advanced PWM controller significantly simplifies isolated power supply design that requires CC regulation of the output. The output current is precisely estimated with information in the primary side of the transformer and controlled with an internal compensation circuit. This removes the output current sensing loss and eliminates all external Control Circuitry (CC). The Green-Mode function, with an extremely low operating current (200µA) in Burst Mode, maximizes the light-load efficiency, enabling conformance to worldwide Standby Mode efficiency guidelines. Integrated protections include two-level pulse-by-pulse current limit, Over-Voltage Protection (OVP), brownout protection, and Over-Temperature Protection (OTP). Compared with a conventional approach using an external control circuit in the secondary side for CC regulation, the FAN302HLMY_F117 can reduce total cost, component count, size, and weight; while simultaneously increasing efficiency, productivity, and system reliability. Figure 1. Typical Output V-I Characteristic Ordering Information Part Number Operating Temperature Range Package Packing Method FAN302HLMY_F117 -40 °C to +105°C 8-Lead, Small Outline Package (SOIC), JEDEC MS-012, .150-Inch Narrow Body Tape & Reel IO VO Maximum Typical Minimum |
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