参数资料
| 型号： | FAN302ULMY |
| 厂商： | Fairchild Semiconductor |
| 文件页数： | 1/19页 |
| 文件大小： | 0K |
| 描述： | IC PWM CTLR MOBILE 8SOIC |
| 标准包装： | 1 |
| 系列： | mWSaver™ |
| 输出隔离： | 隔离 |
| 频率范围： | 135kHz ~ 145kHz |
| 输入电压： | 5.3 V ~ 25 V |
| 输出电压： | 15V |
| 功率（瓦特）： | 660mW |
| 工作温度： | -40°C ~ 105°C |
| 封装/外壳： | 8-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 8-SO |
| 包装： | 剪切带 (CT) |
| 其它名称： | FAN302ULMYCT |
January 2013
FAN302UL
PWM Controller for Low Standby Power Battery-
Charger Applications — mWSaver? Technology
Features
Description
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mWSaver? Technology Provides
Best-in-Class Standby Power
Achieves <10 mW, Far Below Energy Star’s 5-Star
Level (<30 mW).
Proprietary 500 V High-Voltage JFET Startup
Reduces Startup Resistor Loss
Low Operation Current in Burst Mode:
350 μA Maximum
Constant-Current (CC) Control without Secondary-
Side Feedback Circuitry
Fixed PWM Frequency at 140 kHz with Frequency
Hopping to Reduce EMI
High-Voltage Startup
Low Operating Current: 3.5 mA
Peak-Current-Mode Control with Slope
Compensation
Cycle-by-Cycle Current Limiting
V DD Over-Voltage Protection (Auto-Restart)
V S Over-Voltage Protection (Latch Mode)
V DD Under-Voltage Lockout (UVLO)
Gate Output Maximum Voltage Clamped at 15 V
Fixed Over-Temperature Protection (Latch Mode)
Available in an 8-Lead SOIC Package
Advanced PWM controller FAN302UL significantly
simplifies isolated power supply designs that require
Constant Current (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, not only removing the
output current sensing loss, but also eliminating external
CC control circuitry. A Green-Mode function with an
extremely low operating current (200 μA) in Burst Mode
maximizes 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 external
control circuit in the secondary side for CC regulation;
the FAN302UL reduces total cost, component count,
size, and weight, while simultaneously increasing
efficiency, productivity, and system reliability.
V O Maximum
Typical
Minimum
Applications
Battery chargers for cellular phones, cordless phones,
PDA, digital cameras, and power tools. Replaces linear
transformers and RCC SMPS.
Ordering Information
I O
Figure 1. Typical Output V-I Characteristic
Part Number
FAN302ULMY
Operating
Temperature Range
-40 ° C to +105 ° C
Package
8-Lead, Small-Outline Integrated Circuit (SOIC),
JEDEC MS-012, .150-Inch Narrow Body
Packing
Method
Tape & Reel
? 2011 Fairchild Semiconductor Corporation
FAN302UL ? Rev. 1.0.4
www.fairchildsemi.com
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