FSQ0765RSUDTU 데이터 시트보기 (PDF) - Fairchild Semiconductor

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FSQ0765RSUDTU

Green-Mode Fairchild Power Switch (FPS™) for Quasi-Resonant Operation - Low EMI and High Efficiency

Fairchild Semiconductor 

Electrical Characteristics

TA = 25°C unless otherwise specified.

Symbol

Parameter

SENSEFET SECTION

BVDSS Drain Source Breakdown Voltage

IDSS

Zero-Gate-Voltage Drain Current

RDS(ON) Drain-Source On-State Resistance

COSS Output Capacitance

td(on)

Turn-On Delay Time

tr

Rise Time

td(off)

Turn-Off Delay Time

tf

Fall Time

CONTROL SECTION

tON.MAX

tB

tW

fSW

ΔfSW

tAVS

VAVS

Maximum On Time

Blanking Time

Detection Time Window

Initial Switching Frequency

Switching Frequency Variation(11)

AVS Triggering

Threshold(11)

On Time

Feedback

Voltage

tSW

Switching Time Variance by AVS(11)

IFB

Feedback Source Current

DMIN

Minimum Duty Cycle

VSTART

VSTOP

UVLO Threshold Voltage

tS/S

Internal Soft-Start Time

VOVP Over-Voltage Protection

BURST-MODE SECTION

VBURH

VBURL

VB_HYS

Burst-Mode Voltages

Note:

10. Propagation delay in the control IC.

Conditions

Min. Typ. Max. Units

VCC = 0V, ID = 100µA

650

V

VDS = 520V, VGS = 0V

300 µA

TJ = 25°C, ID = 1.8A

1.3 1.6 Ω

VGS = 0V, VDS = 25V, f = 1MHz

125

pF

27

ns

VDD = 325V, ID = 6.5A

102

ns

63

ns

65

ns

TJ = 25°C

TJ = 25°C, Vsync = 5V

TJ = 25°C, Vsync = 0V

-25°C < TJ < 85°C

at VIN = 240VDC, Lm = 360μH

(AVS triggered when

VAVS>spec & tAVS<spec.)

Sync = 500kHz sine input

VFB = 1.2V, tON = 4.0µs

VFB = 0V

VFB = 0V

After turn-on

With free-running frequency

8.8 10.0 11.2 µs

13.2 15.0 16.8 µs

6.0

µs

59.6 66.7 75.8 kHz

±5 ±10 %

4.0

µs

1.2

V

13.5

20.5 µs

700 900 1100 µA

0

%

11 12 13 V

7

8

9

V

17.5

ms

18 19 20 V

TJ = 25°C, tPD = 200ns(10)

0.45 0.55 0.65 V

0.25 0.35 0.45 V

200

mV

Continued on the following page...

© 2008 Fairchild Semiconductor Corporation

FSQ0765RS • Rev. 1.0.2

6

www.fairchildsemi.com

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