RT6908 – PMIC

Part Number : RT6908

Function : PMIC

Manufactures : Richtek

Images :

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RT6908 image

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pinout

Description :

® RT6908 PMIC for TFT LCD TV Panels General Description The RT6908 provides a complete set of programmable multi-functional power solution for TFT LCD panel. The RT6908 contains a step-up converter for main power and step-down controllers to provide the logic voltages for the system. Moreover, a positive charge pump regulator provides the adjustable gate-high voltage, VGH; a negative charge pump regulator provides the gate-low voltage, VGL. AVDD, VGH and VGL outputs and power sequence can be programmable through I2C interface. With its high current capabilities, the device is ideal for large screen monitor panels and LCD TV applications with 12V supply voltage. The RT6908 is available in a WQFN40L 5×5 package. Ordering Information RT6908 Package Type QW : WQFN-40L 5×5 (W-Type) Lead Plating System Z : ECO (Ecological Element with Halogen Free and Pb free) Note : Richtek products are : ` RoHS compliant and compatible with the current requirements of IPC/JEDEC J-STD-020. ` Suitable for use in SnPb or Pb-free soldering processes. Marking Information RT6908ZQW : Product Number RT6908 ZQW YMDNN YMDNN : Date Code Features z 9V to 16V Input Supply Voltage z 4.4A Boost Regulator for AVDD with 12.7V to 19V Programmable Output z 1-CH Sync. Buck Converter for VI/O z 1-CH Sync. Buck Controller for VCORE z Negative Charge Pump Regulator for VGL with −8.1V to −1.8V Programmable Output z Positive Charge Pump Regulator for VGH with 24.5V to 40V Programmable Output z Programmable Sequencing z Voltage Detection Output z Over Temperature Protection z I2C Compatible Interface for Register Control z Thin 40-Lead WQFN Package z RoHS Compliant and Halogen Free Applications z TFT LCD TV Panel Pin Configurations (TOP VIEW) LXB1 LXB1 BOOT1 NC VINB1 AVIN AGND VL EN EN_I2C 40 39 38 37 36 35 34 33 32 31 PGND 1 30 FBB1 2 29 COMP1 3 28 RSTB 4 27 SDA 5 SCL 6 PGND 26 25 VDET 7 24 AVDD 8 GD 9 41 23 22 LXI 10 21 11 12 13 14 15 16 17 18 19 20 BOOT2 LXB2 DHB2 NC DLB2 ILIMIT2 FBB2 COMP2 CRST DRVN COMP A0 PGND LX LX LX PGND VGL VGH DRVP WQFN-40L 5×5 Copyright ©2013 Richtek Technology Corporation. All rights reserved. DS6908-01 March 2013 is a registered trademark of Richtek Technology Corporation. www.richtek.com 1 RT6908 Typical Application Circuit VCORE 1.1V VI/O 3.3V VIN C24 22µF x3 VIN 12V C13 22µF x 2 C21 10µF R14 1.2k C23 470pF C1 22µF L1 6.8µH D1 C2 10µF C6 1µF C7 1µF 14, 15, 16 LX 35 AVIN LXI 10 GD 9 AVDD 8 33 VL RT6908 COMP 11 Q1 C3 2.2nF C4 4.7nF R22 220k C30 330pF AVDD 15.6V C5 120µF C8 10µF 36 VINB1 C12 100pF L2 10µH 39, 40 LXB1 C11 R2 0.1µF 47k 38 BOOT1 2 FBB1 R3 15k C19 470pF R4 120k 3 COMP1 L3 4.7µH R11 10k R12 24k R5 VL R6 VL M1 C20 0.22µF R27 R10 20k C22 1nF R13 1.5 M2 C25 1nF R23 24k 31 EN_I2C 32 EN 30 BOOT2 28 DHB2 29 LXB2 26 DLB2 24 FBB2 DRVP 20 R1 100k Q2 C9 1µF AVDD C10 D2 C14 47nF 0.22µF D3 R7 6.8 R8 6.8 LXB1 C17 22nF CRST 22 C15 0.1µF D4 C16 0.22µF D5 […]

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RT6908 Datasheet


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