TPS65100-Q1_16 Datasheet, PDF (1/33 Pages) Texas Instruments – Triple-Output LCD Supply With Linear Regulator

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TPS65100-Q1
SLVS849B – JULY 2008 – REVISED MARCH 2016
TPS65100-Q1 Triple-Output LCD Supply With Linear Regulator and VCOM Buffer
1 Features
•1 Qualified for Automotive Applications
• AEC-Q100 Qualified With the Following Results:
– Device Temperature Grade 1: –40°C to 125°C
Ambient Operating Temperature Range
– Device HBM ESD Classification Level 2
– Device CDM ESD Classification Level C5
• 2.7-V to 5.8-V Input Voltage Range
• 1.6-MHz Fixed Switching Frequency
• Three Independently Adjustable Outputs
• Main Output of up to 15 V With < 1% Output
Voltage Accuracy
• Virtual Synchronous Converter Technology
• Negative Regulated Charge Pump Driver V_O2
• Positive Charge Pump Converter V_O3
• Integrated VCOM Buffer
• Auxiliary 3.3-V Linear Regulator Controller
• Internal Soft Start
• Internal Power-On Sequencing
• Fault Detection of all Outputs
• Thermal Shutdown
• Available in TSSOP-24 PowerPAD™ Package
2 Applications
• Infotainment Systems
• Automotive Displays
• Instrument Clusters
• Center Consoles
• Rear Seat Entertainment
3 Description
The TPS65100-Q1 device offers a compact and small
power supply solution that provides all three voltages
required by thin-film transistor (TFT) LCD displays.
The auxiliary linear regulator controller can be used
to generate a 3.3-V logic power rail for systems
powered by a 5-V supply rail only.
The main output, V_O1, is a 1.6-MHz fixed-frequency
PWM boost converter providing the source-drive
voltage for the LCD display. The TPS65100-Q1 has a
typical switch current limit of 2.3 A. A fully integrated
adjustable charge pump doubler/tripler provides the
positive LCD gate-drive voltage. An externally
adjustable negative charge pump provides the
negative gate-drive voltage. Due to the high 1.6-MHz
switching frequency of the charge pumps,
inexpensive and small 220-nF capacitors can be
used.
The TPS65100-Q1 has an integrated VCOM buffer to
power the LCD backplane. For LCD panels powered
by 5 V only, the TPS65100-Q1 device has a linear
regulator controller using an external transistor to
provide a regulated 3.3-V output for the digital
circuits. For maximum safety, the TPS65100-Q1
device goes into shutdown as soon as one of the
outputs is out of regulation. The device can be
enabled again by toggling the input or the enable
(EN) pin to GND.
Device Information⁽¹⁾
PART NUMBER
PACKAGE
BODY SIZE (NOM)
TPS65100-Q1
TSSOP (24) with
PowerPAD
4.40 mm × 7.80 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
TPS65100-Q1 Overview
VIN
2.7 V to 5.8 V
Boost
Converter
Positive Charge
Pump
Negative
Charge Pump
VCOM Buffer
Linear Regulator
Controller
V_O1
Up to 15 V / 400 mA
V_O3
Up to 30 V / 20 mA
V_O2
Up to 12 V / 20 mA
VCOM
V_O4
3.3 V
1
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.