TPS65124EVM-076

Manufacturer Part NumberTPS65124EVM-076
DescriptionEVAL MODULE FOR TPS65124-076
ManufacturerTexas Instruments
TypeDC/DC Switching Converters, Regulators & Controllers
TPS65124EVM-076 datasheets
 


Specifications of TPS65124EVM-076

Main PurposeSpecial Purpose DC/DC, LCD SupplyOutputs And Type3, Non-Isolated
Power - Output287mWVoltage - Output5V, 3.3V, 12V
Current - Output25mA, 4mA, 4mAVoltage - Input2.5 ~ 5.5V
Regulator TopologyBoostBoard TypeFully Populated
Utilized Ic / PartTPS65124Input Voltage3.6 V
Output Voltage5 VBoard Size63.5 mm x 55.9 mm
ProductPower Management ModulesDimensions63.5 mm x 55.9 mm
Lead Free Status / RoHS StatusLead free / RoHS CompliantFrequency - Switching-
For Use With/related ProductsTPS65124Other names296-18995
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SINGLE-INDUCTOR QUADRUPLE-OUTPUT
FEATURES
Main Output, V
MAIN
– Adjustable Voltage, 3.0 V to 5.6 V/25 mA
– Post-Regulated for Low Ripple (5mV
– ±0.8% Typical Accuracy
– Efficiency up to 83%
Positive Output, V
GH
– Adjustable Voltage up to 20 V/2 mA
– ±3% Typical Accuracy
Negative Output, V
GL
– Adjustable Voltage down to -18 V/2 mA
– ±3% Typical Accuracy
Auxiliary 1.8 V/3.3 V Linear Regulator
DESCRIPTION
The TPS6512x DC-DC converter supplies all three voltages required by amorphous-silicon (a-Si) and
low-temperature poly-silicon (LTPS) TFT-LCD displays. The compact layout of the TPS6512x uses a single
inductor to generate independently-regulated positive and negative outputs. A free-running variable peak current
PWM control scheme time-multiplexes the inductor between outputs. This control architecture operates at a
pseudo-fixed-frequency to provide fast response to line and load transients while maintaining a relatively
constant switching frequency and high efficiency over a wide range of input and output voltages. Due to the high
switching frequency capability of the device, inexpensive and ultra-thin 8.2 or 10 µH inductors can be used.
The main output, V
, is post-regulated to provide a low-ripple source drive voltage for the LCD display. The
MAIN
auxiliary outputs generate a boosted output voltage, V
-18 V for the LCD gate drive. The device has internal current limiting for high reliability under fault conditions.
Additionally, the device offers a fixed output linear regulator for the LCD logic circuitry.
TPS65123
VIN
V
IN
C1
2.7 V to 5.5 V
2.2
F
RUN
EN
GATE
V
GH
VGH
up to 20 V/2 mA
R1
C2
FBH
100 nF
R2
AGND
A
Figure 1. Typical Application
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
TPS65120, TPS65121, TPS65123, TPS65124
TFT LCD POWER SUPPLY
Automatic or Programmable Power
Sequencing
Complete 1 mm Component Profile Solution
2.5 V to 5.5 V Input Voltage Range
)
PP
Output Short Circuit Protected
16-Pin QFN Package (3 × 3 × 0,9 mm)
APPLICATIONS
Small Form Factor a-Si and LTPS TFT LCD
Cell Phones, Smart Phones
PDAs, Pocket PCs
Portable DVD
Digital-Still Cameras, Camcorders
Handheld Instruments
Portable GPS
Car Navigation Systems
, up to 20 V, and a negative output voltage, V
GH
D1
V
SWN
GL
R3
down to −18 V/2 mA
L1
C3
10
H
R4
100 nF
SWP
FBL
V
VMAIN
MAIN
R5
FBM
3.0 V to 5.3 V/25 mA
BOOT
C5
R6
C4
220 nF
1
F
PGND
A
SLVS531A – JUNE 2004 – REVISED MARCH 2005
GL
V
− Input Voltage − V
IN
I
− Load Current − mA
BOOT
Figure 2. Core Converter Efficiency
Copyright © 2004–2005, Texas Instruments Incorporated
, down to
100
90
80
70
60
50
40
30
20
10
0

TPS65124EVM-076 Summary of contents

  • Page 1

    ... SWP FBL V VMAIN MAIN R5 FBM 3 5.3 V/25 mA BOOT 220 PGND A SLVS531A – JUNE 2004 – REVISED MARCH 2005 GL V − Input Voltage − − Load Current − mA BOOT Figure 2. Core Converter Efficiency Copyright © 2004–2005, Texas Instruments Incorporated , down to 100 ...

  • Page 2

    TPS65120, TPS65121, TPS65123, TPS65124 SLVS531A – JUNE 2004 – REVISED MARCH 2005 These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage ...

  • Page 3

    ELECTRICAL CHARACTERISTICS RUN = µ PARAMETER CONVERTER STAGE Input voltage for full load operation V IN Minimum input voltage for start-up f Switching frequency P ...

  • Page 4

    TPS65120, TPS65121, TPS65123, TPS65124 SLVS531A – JUNE 2004 – REVISED MARCH 2005 ELECTRICAL CHARACTERISTICS (continued 3 RUN = µ PARAMETER MAIN OUTPUT V Main output voltage range ...

  • Page 5

    ELECTRICAL CHARACTERISTICS (continued 3 RUN = µ PARAMETER LINEAR REGULATOR STAGE - AUXILIARY OUTPUT V Input voltage range LDOIN V Output voltage range LDOOUT I Maximum ...

  • Page 6

    TPS65120, TPS65121, TPS65123, TPS65124 SLVS531A – JUNE 2004 – REVISED MARCH 2005 TPS65120/1/2 (TOP VIEW PGND RUN Exposed 2 11 BOOT Thermal Die* LDOIN 3 10 VGH AGND 9 FBH LDOOUT 4 5 ...

  • Page 7

    FUNCTIONAL BLOCK DIAGRAM - TPS65120/1/2/3 GATE 100kR VMAIN RUN EN V REF BOOT V REF FBH FBL Power Up/Down Sequencer VMAIN Power Down Seq Off V REF = 1.213V Bandgap TPS65120, TPS65121, TPS65123, TPS65124 Power Down Seq Off Undervoltage ...

  • Page 8

    TPS65120, TPS65121, TPS65123, TPS65124 SLVS531A – JUNE 2004 – REVISED MARCH 2005 FUNCTIONAL BLOCK DIAGRAM - TPS65124 GATE 100kR VMAIN RUN EN V REF BOOT V REF FBH FBL Power Up/Down Sequencer VMAIN Power Down Seq Off ENVGH ENVGL V ...

  • Page 9

    PARAMETER MEASUREMENT INFORMATION 220 nF List of Components TPS6512x EPCOS SIMID1812 ZETEX ...

  • Page 10

    TPS65120, TPS65121, TPS65123, TPS65124 SLVS531A – JUNE 2004 – REVISED MARCH 2005 TPS65124 CORE CONVERTER EFFICIENCY vs LOAD CURRENT 100 3 ENVGL = ENVGH = GND 0 ...

  • Page 11

    MAIN OUTPUT RIPPLE VOLTAGE V BOOT (50 mV/div, 5.8 V Offset) V MAIN (10 mV/div Offset 3 mA, MAIN ENVGL = ENVGH = LOW t − Time ...

  • Page 12

    TPS65120, TPS65121, TPS65123, TPS65124 SLVS531A – JUNE 2004 – REVISED MARCH 2005 POSITIVE, NEGATIVE OUTPUT RIPPLE VOLTAGE mA, MAIN 100 mA ...

  • Page 13

    QUIESCENT CURRENT vs INPUT VOLTAGE 300 250 200 150 100 MAIN GH GL No-Load Quiescent Current Includes Output Voltage Divider Network Bias Current 0 2.5 2.8 3 3.3 3.5 ...

  • Page 14

    TPS65120, TPS65121, TPS65123, TPS65124 SLVS531A – JUNE 2004 – REVISED MARCH 2005 The standard application circuit ( Figure 1) of the TPS65120 is a complete power supply for TFT LCD displays. The circuit generates four independent supplies for the source ...

  • Page 15

    DETAILED DESCRIPTION (continued) Enable and Power Sequencing (TPS65120/1/2/3) To correctly power up most TFT panels, the gate-drive supplies must be sequenced such that the negative supply (V ) powers up before the positive supply (V GL enable pin. Once ...

  • Page 16

    TPS65120, TPS65121, TPS65123, TPS65124 SLVS531A – JUNE 2004 – REVISED MARCH 2005 DETAILED DESCRIPTION (continued) Enable and Power Sequencing (TPS65124) The TPS65124 controls the power sequencing of V These pins must be terminated and not be left floating to prevent ...

  • Page 17

    OUTPUT POWER CAPABILITY The first step in the design procedure is to calculate the maximum output current for each output under certain input and output voltage conditions. The TPS6512x uses time-multiplex operation to share the inductive storage element between ...

  • Page 18

    TPS65120, TPS65121, TPS65123, TPS65124 SLVS531A – JUNE 2004 – REVISED MARCH 2005 APPLICATION INFORMATION (continued) The larger the feed-forward capacitor the worse the load regulation of the device. Therefore, when concern for load regulation is paramount, select a capacitor value ...

  • Page 19

    DIODE SELECTION To achieve high efficiency, use a Schottky diode. The voltage rating must be higher than the input voltage plus the absolute value of the negative output. The current rating of the diode must meet the converter peak ...

  • Page 20

    TPS65120, TPS65121, TPS65123, TPS65124 SLVS531A – JUNE 2004 – REVISED MARCH 2005 APPLICATION EXAMPLES 5.5 V GPIO +20 V/2 mA 220 nF Figure 23. Complete TFT-LCD Power Supply from 1 cell ...

  • Page 21

    2.2 F GPIO1 220 nF R2 GPIO2 GPIO3 N&P MOS = VISHAY Si1016 D1 = VISHAY BAT54A−HT3 Figure 26. Fully Programmable Sequencing Featuring Very Low Gate Ripple Voltage TPS65124 ...

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  • Page 23

    PACKAGING INFORMATION (1) Orderable Device Status TPS65120RGTR ACTIVE TPS65120RGTRG4 ACTIVE TPS65120RGTT ACTIVE TPS65120RGTTG4 ACTIVE TPS65121RGTR ACTIVE TPS65121RGTRG4 ACTIVE TPS65121RGTT ACTIVE TPS65121RGTTG4 ACTIVE TPS65123RGTR ACTIVE TPS65123RGTRG4 ACTIVE TPS65123RGTT ACTIVE TPS65123RGTTG4 ACTIVE TPS65124RGTR ACTIVE TPS65124RGTRG4 ACTIVE TPS65124RGTT ACTIVE TPS65124RGTTG4 ACTIVE (1) ...

  • Page 24

    MSL, Peak Temp. -- The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder temperature. Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date ...

  • Page 25

    TAPE AND REEL INFORMATION *All dimensions are nominal Device Package Package Type Drawing TPS65120RGTR QFN RGT TPS65120RGTT QFN RGT TPS65121RGTR QFN RGT TPS65121RGTT QFN RGT TPS65123RGTR QFN RGT TPS65123RGTT QFN RGT TPS65124RGTR QFN RGT TPS65124RGTT QFN RGT PACKAGE MATERIALS ...

  • Page 26

    Device Package Type TPS65120RGTR QFN TPS65120RGTT QFN TPS65121RGTR QFN TPS65121RGTT QFN TPS65123RGTR QFN TPS65123RGTT QFN TPS65124RGTR QFN TPS65124RGTT QFN PACKAGE MATERIALS INFORMATION Package Drawing Pins SPQ Length (mm) RGT 16 3000 RGT 16 250 RGT ...

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    ... Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications, enhancements, improvements, and other changes to its products and services at any time and to discontinue any product or service without notice. Customers should obtain the latest relevant information before placing orders and should verify that such information is current and complete. All products are sold subject to TI’ ...