FAN7315G

FAN7315G Datasheet


FAN7315

Part Datasheet
FAN7315G FAN7315G FAN7315G (pdf)
Related Parts Information
FAN7315GX FAN7315GX FAN7315GX
PDF Datasheet Preview
FAN7315

LCD Back Light Inverter Drive IC
• Wide Dimming Range Analog dimming 1 Burst dimming >100 1
• High Efficiency Single Stage Power Conversion
• Wide Input Voltage Range 7.4V to 20V
• Back Light Lamp Ballast and Soft Dimming
• Few External Components
• Precision Voltage Reference Trimmed to 2%
• ZVS full-bridge topology
• Soft Start
• PWM Control at fixed frequency
• Analog, Burst Dimming Function
• Open Lamp Protection
• Open Lamp Regulation
• Short Lamp Protection
• Thermal Protection
• 20 Pin SSOP

The FAN7315 provides all the control functions for a series parallel resonant converter and also contains a pulse width modulation PWM controller to develop a supply voltage. Typical operating frequency range is between 30kHz and 250kHz depending on the CCFL and the transformer's characteristics.
20-SSOP
2004 Fairchild Semiconductor Corporation

FAN7315

Internal Block Diagram

OSCILLATOR
5.2uA

Output Control Logic

Output Driver

Output Driver

OUTA OUTB PGND OUTC OUTD

EA_OUT ADIM EA_IN

BCT BDIM AGND

Error Amp. + -

Solr 240uA

Sburst 240uA

Solr

Voltage Reference

Internal

Bias

Sburst UVLO

Thermal protection

Q SET R QS

UVLO
2.5VREF
+ 300mV
+ - 2V

SCP REF
1.4V

UVLO 7.4V

ENA VIN

Pin Assignments

FAN7315

SCP OUTB OUTA VIN
20 19 18 17

PGND OUTC OUTD CT
16 15 14 13
Ordering Information

Product number FAN7315G

Package 20-SSOP

Operating Temperature -40°C ~ 85°C

DISCLAIMER

FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS.

LIFE SUPPORT POLICY

FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD SEMICONDUCTOR CORPORATION. As used herein:

Life support devices or systems are devices or systems which, a are intended for surgical implant into the body, or b support or sustain life, and c whose failure to perform when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in a significant injury of the user.

A critical component in any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness.
10/6/04 0.0m 001 2002 Fairchild Semiconductor Corporation
More datasheets: TSL2550D-TR | 74ACTQ32PC | 473-2UYT/S530-A3 | SHOW-BOARD I | ASMT-QTB2-0AA02 | ASMT-QTB2-0A002 | 1548 | AON6450L | AON6450L_001 | FAN7315GX


Notice: we do not provide any warranties that information, datasheets, application notes, circuit diagrams, or software stored on this website are up-to-date or error free. The archived FAN7315G Datasheet file may be downloaded here without warranties.

Datasheet ID: FAN7315G 513972