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JW7710 Datasheet_R0.11_EN_20140915

JW7710

Active Damper Controller

Parameters Subject to Change Parameters Subject to Change Without Notice

FEATURE S

Control the bypass MOSFET of the damping

circuit and prevent TRIAC dimmer from flicking

13V to 600V operating input range Provide delay before MOSFET fully on;

APPLICATIONS

Active Damper Controller for TRIAC dimming

Power Supplies.

DESCRIPTION

JW7710 is an active damper controller combined

with an external switch, which eliminates input current oscillation. When TRIAC turns on, the chip drives an external switch to short the damping resistance after turn-on delay and switches it off as soon as the voltage drops below the UVLO threshold.

C o m p a n y ’s L o g o i s P r o t e c t e d , “J W ” a n d “J O U L W A T T ” a r e R e g i s t e r e d T r a d e m a r k s o f J o u l W a t t t e c h n o l o g y I n c .

TYPICAL APPLICATION

ORDER INFORMATION

LEAD FREE FINISH TAPE AND REEL PACKAGE TOP MARKING JUNCTION TEMPERATURE

RANGE

JW7710TOC#PBF

JW7710TOC #TRPBF TO-92

JW7710

–40 oC to 150 oC

PIN CONFIGURATION

TOP VIEW

ELECTRICAL CHARATERISTICS

VIN=600V, T A=25℃, unless otherwise stated.

Item Symbol Condition Min. Typ. Max. Units Operation range of VIN V IN13 600 V Threshold of VIN power on V IN_UVLO_H VIN rising 13 V Threshold of VIN power off V IN_UVLO_L VIN falling 9 V Nominal current of VIN I Q80 μA Delay time before GATE start T DELAY220 300 380 μs Rising time of GATE T GATE_R220 μs High voltage of GATE V GATE_H10 12.5 15 V Low voltage of GATE V GATE_L0.7 V

PIN DESCRIPTION

SOT23-6

Name Description Pin

1 GATE Gate Driver for the External MOSFET.

2 GND Ground pin.

3 VIN Input voltage pin. VIN supplies power to the IC.

BLOCK DIAGRAM

FUNCTIONAL DESCRIPTION

The JW7710 supports operation in a very wide input range. When TRIAC is on, the chip starts to drive an external switch after turn-on delay and switches off as soon as the voltage drops below the UVLO threshold.

Turn-On phase

When TRIAC turns on, the chip starts to drive an external switch after about 300us turn-on delay. After the miller platform, the switch is fully on. Under-Voltage Lockout (UVLO)

When VIN drops below the UVLO threshold, the chip is shut down and the GATE pin voltage is discharged to zero.

Reliability Function

600V high voltage process significantly enhances the safety and reliability of the system, and greatly simplifies the design of the peripheral circuit.

PACKAGE OUTLINE

IMP ORTAN T NOTICE

Joulwatt Technology Inc. reserves the right to make modifications, enhancements, improvements, corrections or other changes without further notice to this document and any product described herein.

Any unauthorized redistribution or copy of this document for any purpose is strictly forbidden.

Joulwatt Technology Inc. does not warrant or accept any liability whatsoever in respect of any products purchased through unauthorized sales channel.

When using this product, Joulwatt Technology Inc. has no responsibility for any direct or indirect loss caused by the use of the product or attached material.

C o p y r i g h t?2014J W7710I n c o r p o r a t e d.

A l l r i g h t s a r e r e s e r v e d b y J o u l w a t t T e c h n o l o g y I n c.

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