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RT8901

Richtek
Part Number RT8901
Manufacturer Richtek
Description 35V Gate Pulse Modulator
Published Mar 25, 2016
Detailed Description ® RT8901 35V Gate Pulse Modulator for LCD Panels General Description The Gate Pulse Modulator (GPM) is specially desig...
Datasheet PDF File RT8901 PDF File

RT8901
RT8901

Overview
® RT8901 35V Gate Pulse Modulator for LCD Panels General Description The Gate Pulse Modulator (GPM) is specially designed for the application of gate driver in TFT LCD panels.
The GPM is controlled by frame signals from timing controller to modulate the Gate-On voltage that acts a flicker compensation circuit to reduce the coupling effect between gate lines and pixels.
It also can delay the Gate-On voltage while power-on for achieving a correct power-on-sequence for gate driver ICs.
Both of the delay time for flicker compensation and power-on-sequence are programmable by external resistors and capacitors.
Features  Flicker Compensation Circuit  Reduction of Coupling Effect Between Gate Line and Pixel  Programmable Power Sequence for Gate Driver IC  Operation from 20V to 35V Positive Supply Input  Adjustable Output Delay Time  RoHS Compliant and 100% Lead (Pb)-Free Applications  TFT-LCDPanels Ordering Information RT8901 Typical Application Circuit Package Type S : SOP-8 Lead Plating System P : Pb Free G : Green (Halogen Free and Pb Free) Note : Richtek products are :  RoHS compliant and compatible with the current require- ments of IPC/JEDEC J-STD-020.
 Suitable for use in SnPb or Pb-free soldering processes.
VCD VFLK VDPM 4 CD VGH 1 RT8901 8 VFLK VGH C1 1µF R2 33k 6 VDPM VGHM 2 R1 C3 100pF RE 3 1.
2k VGHM C2 1.
5nF 7 GND VD 5 R5A 200k VAVDD R5B 20k Marking Information RT8901GS RT8901GS : Product Number RT8901 GSYMDNN YMDNN : Date Code Pin Configurations (TOP VIEW) VGH VGHM RE CD 2 3 4 8 VFLK 7 GND 6 VDPM 5 VD Figure 1.
Typical Application Circuit for Mode A and Mode C VFLK VDPM C4 100pF 4 CD VGH 1 8 RT8901 VFLK R2 33k 6 VDPM VGHM 2 R1 C3 100pF RE 3 1.
2k VGH C1 1µF VGHM C2 1.
5nF 7 GND VD 5 R5A 200k VAVDD R5B 20k SOP-8 Figure 2.
Typical Application Circuit for Mode B Copyright ©2013 Richtek Technology Corporation.
All rights reserved.
DS8901-03 October 2013 is a registered trademark of Richtek Technology Corpora...


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