Q0465R View Datasheet(PDF) - Fairchild Semiconductor

Part Name

Description

Manufacturer

Q0465R

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

Fairchild Semiconductor 

Electrical Characteristics (Continued)

TA = 25°C unless otherwise specified.

Symbol

Parameter

Condition

Min. Typ. Max. Unit

PROTECTION SECTION

ILIMIT

ILIMIT

VSD

IDELAY

tLEB

tOSP

VOSP

tOSP_FB

TSD

Hys

Peak Current Limit of FSQ0465RS

Peak Current Limit of FSQ0465RB

Shutdown Feedback Voltage

Shutdown Delay Current

Leading-Edge Blanking Time(11)

TJ = 25°C, di/dt = 480mA/µs

TJ = 25°C, di/dt = 370mA/µs

VCC = 15V

VFB = 5V

1.6 1.8 2.0 A

2.64 3.00 3.36 A

5.5 6.0 6.5 V

4

5

6 µA

250

ns

Threshold Time

TJ = 25°C

1.2 1.4 µs

Output Short Threshold Feedback

Protection(11) Voltage

OSP triggered when tON < tOSP,

VFB > VOSP and lasts longer than

1.8

2.0

V

Feedback Blanking Time tOSP_FB

2.0 2.5 3.0 µs

Thermal

Shutdown Temperature

Shutdown(11) Hysteresis

+125 +140 +155

°C

+60

SYNC SECTION

VSH1

VSL1

tsync

VSH2

VSL2

Sync Threshold Voltage 1

Sync Delay Time(11)(12)

Sync Threshold Voltage 2

VCLAMP Low Clamp Voltage

TOTAL DEVICE SECTION

VCC = 15V, VFB = 2V

VCC = 15V, VFB = 2V

ISYNC_MAX = 800µA,

ISYNC_MIN = 50µA

1.0 1.2 1.4

V

0.8 1.0 1.2

230

ns

4.3 4.7 5.1

V

4.0 4.4 4.8

0.0 0.4 0.8 V

IOP

ISTART

ICH

VSTR

Operating Supply Current

Start Current

Startup Charging Current

Minimum VSTR Supply Voltage

VCC = 13V

1 3 5 mA

VCC = 10V

(before VCC reaches VSTART)

350 450 550 µA

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

26

V

Notes:

10. Propagation delay in the control IC.

11. Guaranteed by design; not tested in production.

12. Includes gate turn-on time.

© 2008 Fairchild Semiconductor Corporation

FSQ0465RS/RB Rev. 1.0.1

7

www.fairchildsemi.com

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