TPS65154 Datasheet, PDF (1/87 Pages) Texas Instruments – LCD Bias IC with Integrated WLED Driver

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TPS65154
SLVSBG2A – SEPTEMBER 2013 – REVISED JUNE 2016
TPS65154 LCD Bias IC with Integrated WLED Driver
1 Device Overview
1.1 Features
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• 2.0 V to 5.5 V Input Voltage Range
• Synchronous Boost Converter (AV_DD)
• Non-Synchronous Boost Converter (V_GH)
• Low Dropout Linear Regulator (V_CC)
• Programmable V_COM Calibrator with Integrated
Buffer Amplifier
• 6-Channel WLED Driver with Direct Dimming and
Phase-Shift Dimming Modes
• Gate Voltage Shaping
• Panel Reset Signal (XAO)
• T-CON Reset Signal (RST)
• On-Chip EEPROM with Write Protect
• I²C Interface
• Thermal Shutdown
• 48-Pin, 6 mm × 6 mm, 0.4 mm Pitch VQFN
1.2 Applications
• Notebook PCs
• Tablet PCs
1.3 Description
The TPS65154 is a compact LCD bias solution primarily intended for use in Notebook and Tablet PCs.
The device comprises two boost converters to supply the LCD panel's source driver and gate driver; a
linear regulator to supply the system's logic voltage; a programmable V_COM with high-speed amplifier; and
a gate voltage shaping function; and a 6-channel WLED driver.
spacing
PART NUMBER
Device Information⁽¹⁾
PACKAGE
TPS65154
VQFN (48)
(1) For all available packages, see the orderable addendum at the end of the data manual.
BODY SIZE (NOM)
6.00 mm × 6.00 mm
1.4 Simplified System Diagram
V_IN (2.0V to 5.5V)
Boost Converter 1
AV_DD (6.5V to 9.6V)
AV_DD
V_GH
V_IN
Boost Converter 2
Gate Voltage
Shaping
Linear Regulator
V_GH (18V to 25.5V)
V_GHM
V_CC (1.0V to 2.5V)
AV_DD
I²C
V_LED (4.5V to 24V)
Negative Charge Pump
Programmable
VCOM Buffer
Miscellaneous
Boost Converter 3
V_GL (–5V to –8V)
V_COM
RST
XAO
<38 V
WLED Driver
Copyright © 2016, Texas Instruments Incorporated
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An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.