FAN105B datasheet(8/19 Pages) ONSEMI

Teilenummer	FAN105B

Bauteilbeschribung	PSR Quasi-Resonant Valley Switch Controller

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Hersteller	ONSEMI [ON Semiconductor]

Direct Link	http://www.onsemi.com

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7

Publication Order Number:

May 2017- Rev. 1.0

FAN105BM6X

Notes:

7. Guaranteed by Design.

8. TA guaranteed range at 25C

ELECTRICAL CHARACTERISTICS

VDD=12 V and TA=-40~85C unless noted.

Parameter

Test Conditions

Symbol

Min

Typ

Max

Unit

Current Feedback Section

Reference Voltage of Constant Current

Feedback

VCCR

1.19

1.2

1.21

V

VCS Peak Value Amplifying Gain

(7)

APK

3.9

V/V

Attenuator ratio of Constant Current

Feedback Loop

(7)

AV-CC

1/3.5

V/V

Current Sense Section

Current Limit Threshold Voltage

VCS-LIM

0.70

0.75

0.80

V

GATE Output Turn-Off Delay

(7)

tPD

100

ns

Leading-Edge Blanking Time

(7)

tLEB

150

200

250

ns

GATE Section

Maximum On-Time

tON-MAX

15

17

20

μs

Gate Output Voltage Low

VGATE-L

0

1.5

V

Internal Gate PMOS Driver ON

VDD-PMOS-ON

7.0

7.5

8.0

V

Internal Gate PMOS Driver OFF

VDD-PMOS-OFF

9.0

9.5

10.0

V

Gate Output Clamping Voltage

VDD level higher than 9V

VGATE-CLAMP

7.0

7.5

8.0

V

AUX Section

Dynamic Response Enhancement (DRE)

function trigger threshold current at AUX

IDRE-DET

110

140

170

μA

CDC compensation voltage at internal

reference

RCDC is 330kΩ

VVS-CDC4

0.298 0.320 0.343

V

RCDC is 560kΩ

VVS-CDC3

0.223 0.240 0.257

V

RCDC is 920kΩ

VVS-CDC2

0.149 0.160 0.171

V

RCDC is 1.3MΩ

VVS-CDC1

0.074 0.080 0.086

V

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