FAN7317MX

FAN7317MX Datasheet


FAN7317 LCD Backlight Inverter Drive IC

Part Datasheet
FAN7317MX FAN7317MX FAN7317MX (pdf)
Related Parts Information
FAN7317M FAN7317M FAN7317M
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FAN7317 LCD Backlight Inverter Drive IC

FAN7317

LCD Backlight Inverter Drive IC

June 2011

High-Efficiency Single-Stage Power Conversion Wide Input Voltage Range 6V to 24V Backlight Lamp Ballast and Soft Dimming Minimal Required External Components Precision Voltage Reference Trimmed to 2% ZVS Full-Bridge Topology Soft-Start PWM Control at Fixed Frequency Burst Dimming Function Programmable Striking Frequency Open-Lamp Protection Open-Lamp Regulation Arc Protection Short-Lamp Protection CMP-High Protection High-FB Protection Thermal Shutdown 20-Pin SOIC

LCD TV LCD Monitor

The FAN7317 is a LCD backlight inverter drive IC that controls P-N full-bridge topology by using the new proprietary phase-shift method.

The FAN7317 provides a low-cost solution and reduces external components by integrating full wave rectifiers for open-lamp protection and regulation. The operating voltage range of the FAN7317 is wide, so an external regulator isn’t necessary to supply the voltage to the IC.

The FAN7317 provides various protections, such as open-lamp regulation, open-lamp protection, arc protection, short-lamp protection, CMP-high protection, and FB-high protection, to increase the system reliability. The FAN7317 provides burst dimming function and analog dimming is possible, in a narrow range, by adding some external components.

The FAN7317 is available in a 20-SOIC package.
Ordering Information

Package

Operating Temperature

FAN7317M FAN7317MX
20-SOIC 20-SOIC
-25 to +85°C -25 to +85°C

All packages are lead free per JEDEC J-STD-020B standard.

Packing Method

RAIL TAPE & REEL
2007 Fairchild Semiconductor Corporation FAN7317


FAN7317 LCD Backlight Inverter Drive IC

Block Diagram

OLR1 OLR2 OLR3 OLR4

Min. 0.3V

Min. &

Max.

Detector Max.
/Full Wave

Recifier

Short Lamp Protection

Arc Protection

Over-Voltage Protection
1.8V
0µA
1µA Error. Amp. source current change

Open Lamp Regulation 2.2V

Gm Amp.
max. 2V

Gm = 350, Max. current 85µA

On striking min. 0.5V

Disable striking 1ms delay operation burst dimming on TSD 150oC

Protection Disable striking OLR output 32 count normal Reset by BCT edge detect
1.6s delay striking 10ms delay normal

Oscillator

Output Driver 7V 0.2A/0.3A
dead time 200ns

Control Logic

OLP1 OLP2 OLP3 OLP4

Error. Amp. source
current change
0µA sink current striking
More datasheets: DM74ALS257M | DM74ALS257N | DM74ALS258N | DM74ALS257MX | DM74ALS258M | DM74ALS258MX | DM74ALS257SJ | DM74ALS257SJX | 775 | KT1612A52000ECW18TAA


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Datasheet ID: FAN7317MX 513975