FSQ0565R datasheet(6/22 Pages) FAIRCHILD | Green-Mode Fairchild Power Switch (FPS™) for Quasi-Resonant Operation

6 page

www.fairchildsemi.com

FSQ0565R, FSQ0765R Rev. 1.0.0

Electrical Characteristics

TA = 25°C unless otherwise specified.

Continued on the following page...

Symbol

Parameter

Condition

Min. Typ. Max. Unit

SENSEFET SECTION

BVDSS

Drain Source Breakdown Voltage

VCC = 0V, ID = 100µA

650

IDSS

Zero-Gate-Voltage Drain Current

VDS = 560V

250

µA

RDS(ON)

Drain-Source On-State

Resistance

FSQ0565R

TJ = 25°C, ID = 0.5A

1.76

2.20

FSQ0765R

TJ = 25°C, ID = 0.5A

1.4

1.6

COSS

Output Capacitance

FSQ0565R

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

FSQ0765R

100

td(on)

Turn-On Delay Time

FSQ0565R

VDD = 350V, ID = 25mA

FSQ0765R

Rise Time

FSQ0565R

VDD = 350V, ID = 25mA

FSQ0765R

td(off)

Turn-Off Delay Time

FSQ0565R

VDD = 350V, ID = 25mA

FSQ0765R

115

Fall Time

FSQ0565R

VDD = 350V, ID = 25mA

FSQ0765R

CONTROL SECTION

tON.MAX

Maximum On Time

TJ = 25°C

8.8

10.0

11.2

µs

Blanking Time

TJ = 25°C, Vsync = 5V

13.2

15.0

16.8

µs

Detection Time Window

TJ = 25°C, Vsync = 0V

6.0

µs

Initial Switching Frequency

59.6

66.7

75.8

kHz

ΔfS

Switching Frequency Variation(9)

-25°C < TJ < 85°C

±5

±10

tAVS

AVS Triggering

Threshold(9)

On Time

at VIN = 240VDC, Lm = 360μH

(AVS triggered when VAVS>spec

& tAVS<spec.)

4.0

µs

VAVS

Feedback

Voltage

1.2

tSW

Switching Time Variance by AVS(9)

Sync = 500kHz sine input

VFB = 1.2V, tON = 4.0µs

13.5

20.5

µs

IFB

Feedback Source Current

VFB = 0V

700

900

1100

µA

DMIN

Minimum Duty Cycle

VFB = 0V

VSTART

UVLO Threshold Voltage

VSTOP

After turn-on

tS/S

Internal Soft-Start Time

With free-running frequency

17.5

BURST-MODE SECTION

VBURH

Burst-Mode Voltages

TJ = 25°C, tPD = 200ns(8)

0.45

0.55

0.65

VBURL

0.25

0.35

0.45

Hysteresis

200

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