Datasheet > FAN501A

FAN501A

更新时间： 2022-02-26 13:35:55

品牌	Logo	应用领域
飞兆/仙童 - FAIRCHILD		/
页数	文件大小	规格书
16页	1348K
描述
Offline DCM / CCM Flyback PWM Controller for Charger Applications

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数据手册

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FAN501A 数据手册

Marking Information

F- Fairchild Logo

Z: Assembly Plant Code

X: Year Code

Y: Week Code

TT: Die Run Code

T: Package Type (MP=MLP)

M: Manufacture Flow Code

ZXYTT

FAN501A

Figure 4.

Top Mark

Pin Configuration

SGND

COMP

FAN501A

PGND 10

GATE VDD

Figure 5.

Pin Assignments

Pin Definitions

Pin #

Name

Description

PWM Signal Output. This pin has an internal totem-pole output driver to drive the power

MOSFET. The gate driving voltage is internally clamped at 7.5 V.

GATE

Power Supply. IC operating current and MOSFET driving current are supplied through this pin.

This pin is typically connected to an external capacitor.

VDD

Voltage Sense. This pin detects the output voltage information and diode current discharge time

based on the voltage of the auxiliary winding. It also senses sink current through the auxiliary

winding to detect input voltage information.

CC Control Correction. This pin connects to external resistor to program the CC control

correction weighting.

COMP

SGND

Signal Ground

Feedback. An opto-coupler is typically connected to this pin to provide feedback information to

the internal PWM comparator. This feedback is used to control the duty cycle in Constant-

Voltage (CV) regulation.

Shut Down. This pin is implemented for external over-temperature protection by connecting to

an NTC thermistor.

High Voltage. This pin connects to a DC bus for high-voltage startup.

Current Sense. This pin connects to a current-sense resistor to detect the MOSFET current for

Peak-Current-Mode control for output regulation. The current-sense information is also used to

estimate the output current for CC regulation.

PGND

Power Ground

www.fairchildsemi.com

FAN501A • Rev. 1.0.0

1 234 5 6 7...16

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