FAN102 查看數據表（PDF） - Fairchild Semiconductor

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FAN102

Primary-Side-Control PWM Controller

Fairchild Semiconductor 

Electrical Characteristics

VDD=15V and TA=25°C unless otherwise specified.

Symbol

Parameter

Conditions

Min. Typ. Max. Units

Voltage-Error-Amplifier Section

VVR

Reference Voltage

VN

Green Mode Starting Voltage on fS=fOSC-2KHz,

COMV Pin

VVS=2.3V

VG

Green Mode Ending Voltage on

COMV Pin

fS=1KHz

2.475 2.500 2.525

V

2.8

V

0.8

V

IV-SINK Output Sink Current

VVS=3V, VCOMV=2.5V

90

μA

IV-SOURCE Output Source Current

VVS=2V, VCOMV=2.5V

90

μA

VV-HGH Output High Voltage

VVS=2.3V

4.5

V

Current-Error-Amplifier Section

VIR

Reference Voltage

II-SINK

Output Sink Current

II-SOURCE Output Source Current

VI-HGH Output High Voltage

Cable Compensation Section

2.475 2.500 2.525

V

VCS=3V, VCOMI=2.5V

55

μA

VCS=0V, VCOMI=2.5V

55

μA

VCS=0V

4.5

V

VCOMR

Variation Test Voltage on COMR

Pin for Cable Compensation

RCOMR=100KΩ

0.735

V

Gate Section

DCYMAX

VOL

VOH

VOH_MIN

tr

tf

Maximum Duty Cycle

Output Voltage LOW

Output Voltage HIGH

Output Voltage HIGH

Rising Time

Falling Time

75

%

VDD=20V, IO=10mA

1.5

V

VDD=8V, IO=1mA

5

V

VDD=5.5V, IO=1mA

4

V

VDD=20V, CL=1nF

200

300

ns

VDD=20V, CL=1nF

80

150

ns

VCLAMP Output Clamp Voltage

Over-Temperature-Protection Section

VDD=25V

15

18

V

TOTP

Threshold Temperature for

OTP(3)

+140

°C

Note:

3. When over-temperature protection is activated, the power system enters auto restart mode and output is

disabled.

© 2008 Fairchild Semiconductor Corporation

FAN102 Rev. 1.0.3

6

www.fairchildsemi.com

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