FAN100 データシートの表示（PDF） - Fairchild Semiconductor

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FAN100

Primary-Side-Control PWM Controller

Fairchild Semiconductor 

Electrical Characteristics (Continued)

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

Symbol

Parameter

Conditions

Min. Typ. Max. Units

Current-Sense Section

tPD

tMIN-N

tMINCC

DSAW

VTH

Propagation Delay to GATE

Output

Minimum On Time at No Load

Minimum On Time in CC Mode

Duty Cycle of SAW Limiter

Threshold Voltage for Current

Limit

VVS=-0.8V, RS=2KΩ,

VCOMV=1V

VVS=0V, VCOMV=2V

100

200

ns

1100

ns

400

ns

40

%

1.3

V

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

Gate 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

DCYMAX Maximum Duty Cycle

75

%

VOL

Output Voltage Low

VDD=20V, IO=10mA

1.5

V

VOH

Output Voltage High

VDD=8V, IO=1mA

5

V

VOH_MIN Output Voltage High

VDD=5.5V, IO=1mA

4

V

tr

Rising Time

VDD=20V, CL=1nF

200

300

ns

tf

Falling Time

VDD=20V, CL=1nF

80

150

ns

VCLAMP Output Clamp Voltage

VDD=25V

15

18

V

Over-Temperature-Protection Section

TOTP

Threshold Temperature for

OTP(3)

+140

oC

Note:

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

© 2008 Fairchild Semiconductor Corporation

FAN100 Rev. 1.0.0

6

www.fairchildsemi.com

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