FSQ0465RBLDTU datasheet(7/23 Pages) FAIRCHILD

Part #	FSQ0465RBLDTU

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

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Manufacturer	FAIRCHILD [Fairchild Semiconductor]

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FSQ0465RS/RB Rev. 1.0.1

7

Electrical Characteristics (Continued)

TA = 25°C unless otherwise specified.

Notes:

10. Propagation delay in the control IC.

11. Guaranteed by design; not tested in production.

12. Includes gate turn-on time.

Symbol

Parameter

Condition

Min. Typ. Max. Unit

PROTECTION SECTION

ILIMIT

Peak Current Limit of FSQ0465RS

TJ = 25°C, di/dt = 480mA/µs

1.6

1.8

2.0

A

ILIMIT

Peak Current Limit of FSQ0465RB

TJ = 25°C, di/dt = 370mA/µs

2.64

3.00

3.36

A

VSD

Shutdown Feedback Voltage

VCC = 15V

5.5

6.0

6.5

V

IDELAY

Shutdown Delay Current

VFB = 5V

4

5

6

µA

tLEB

Leading-Edge Blanking Time(11)

250

ns

tOSP

Output Short

Protection(11)

Threshold Time

TJ = 25°C

OSP triggered when tON < tOSP,

VFB > VOSP and lasts longer than

tOSP_FB

1.2

1.4

µs

VOSP

Threshold Feedback

Voltage

1.8

2.0

V

tOSP_FB

Feedback Blanking Time

2.0

2.5

3.0

µs

TSD

Thermal

Shutdown(11)

Shutdown Temperature

+125 +140 +155

°C

Hys

Hysteresis

+60

SYNC SECTION

VSH1

Sync Threshold Voltage 1

VCC = 15V, VFB = 2V

1.0

1.2

1.4

V

VSL1

0.8

1.0

1.2

tsync

Sync Delay Time(11)(12)

230

ns

VSH2

Sync Threshold Voltage 2

VCC = 15V, VFB = 2V

4.3

4.7

5.1

V

VSL2

4.0

4.4

4.8

VCLAMP

Low Clamp Voltage

ISYNC_MAX = 800µA,

ISYNC_MIN = 50µA

0.0

0.4

0.8

V

TOTAL DEVICE SECTION

IOP

Operating Supply Current

VCC = 13V

1

3

5

mA

ISTART

Start Current

VCC = 10V

(before VCC reaches VSTART)

350

450

550

µA

ICH

Startup Charging Current

VCC = 0V, VSTR = minimum 50V 0.65 0.85 1.00

mA

VSTR

Minimum VSTR Supply Voltage

26

V

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