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2.2 Fm

4.7 Fm

4.7 Hm

-4.93V/200mA

NEG

4.63V/200mA

POS

100nF

Enable and

Digital OUTN

Adjustment

4.7 Fm

2.3V to 5.5V

4.7 Hm

TPS65137

www.ti.com

SLVS929A –MAY 2010–REVISED OCTOBER 2012

200mA Dual Output AMOLED Display Power

Check for Samples: TPS65137

FEATURES

DESCRIPTION

The TPS65137 is designed to provide best in class

• 2.3 V to 5.5 V Input Voltage Range

picture quality for AMOLED displays (Active Matrix

• 1% Output Voltage Accuracy V

POS

Organic Light Emitting Diode) requiring positive and

• Excellent Line Transient Regulation

negative voltage supply rails. With its wide input

voltage range the device is ideally suited for

• Low Noise Operation

AMOLED displays, which are used in mobile phones

• 200 mA Output Current

and smart phones. With this device the input voltage

• Fixed 4.63 V Positive Output Voltage

can be higher than the positive output voltage and

still maintains accurate regulation of V

POS

. Using the

• Digitally Programmable Negative Output

digital control pin (CTRL) allows adjusting the

Voltage Down to –5.23V

negative output voltage in digital steps. The

• –4.93V Default Value for V

NEG

TPS65137 uses a novel technology enabling

• Advanced Power Save Mode

excellent line and load regulation with minimum

output voltage ripple by using a LDO post regulator

• Short Circuit Protection

for V

POS

. This is required avoiding disturbance of the

• Thermal Shutdown

AMOLED display due to input voltage transients

• TPS65137A High impedance output in

occurring during transmit periods in mobile phones.

shutdown

• 3×3 mm 10 Pin QFN Package

APPLICATIONS

• Active Matrix OLED Power Supply

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.

Summary of content (22 pages)

PAGE 1
TPS65137 www.ti.com SLVS929A – MAY 2010 – REVISED OCTOBER 2012 200mA Dual Output AMOLED Display Power Check for Samples: TPS65137 FEATURES DESCRIPTION • • • • • • • The TPS65137 is designed to provide best in class picture quality for AMOLED displays (Active Matrix Organic Light Emitting Diode) requiring positive and negative voltage supply rails. With its wide input voltage range the device is ideally suited for AMOLED displays, which are used in mobile phones and smart phones.
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TPS65137 SLVS929A – MAY 2010 – REVISED OCTOBER 2012 www.ti.com This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated circuits be handled with appropriate precautions. Failure to observe proper handling and installation procedures can cause damage. ESD damage can range from subtle performance degradation to complete device failure.
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TPS65137 www.ti.com SLVS929A – MAY 2010 – REVISED OCTOBER 2012 THERMAL INFORMATION TPS65137 THERMAL METRIC (1) DSC UNITS 10 Junction-to-ambient thermal resistance (2) θJA 56.5 (3) θJC(top) Junction-to-case(top) thermal resistance θJB Junction-to-board thermal resistance ψJT Junction-to-top characterization parameter ψJB Junction-to-board characterization parameter θJC(bottom) (1) (2) (3) (4) (5) (6) (7) 65.8 (4) 25.2 (5) Junction-to-case(bottom) thermal resistance 1.0 (6) °C/W 17.
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TPS65137 SLVS929A – MAY 2010 – REVISED OCTOBER 2012 www.ti.com ELECTRICAL CHARACTERISTICS VIN = 3.5V, EN = VIN, OUTP = 4.63V, OUTN = –4.93V, TA = –40°C to 85°C, typical values are at TA = 25°C (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT SUPPLY CURRENT VIN Input voltage range IQ Operating quiescent current into Vin ISD Shutdown current into Vin UVLO Under-voltage lockout threshold fs Switching frequency 2.3 5.5 0.1 1.0 VIN falling 2.0 VIN rising 2.
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TPS65137 www.ti.com SLVS929A – MAY 2010 – REVISED OCTOBER 2012 DEVICE INFORMATION 10 PIN TQFN PACKAGE (TOP VIEW 1 SWN 2 OUTN 3 CTRL 4 CT 5 10 PGND Exposed Thermal Die VIN 9 SWP 8 CB 7 OUTP 6 GND Pin Functions PIN NAME DESCRIPTION NO.
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TPS65137 SLVS929A – MAY 2010 – REVISED OCTOBER 2012 www.ti.com TYPICAL CHARACTERISTICS TABLE OF GRAPHS FIGURE Efficiency versus Output current Figure 1 Efficiency versus Input voltage Figure 2 Efficiency versus Negative voltage Figure 3 Negative output voltage programming Negative output voltage programming Figure 4 Device enabled (CTRL = 400µs high), programmed to –3.0V Figure 5 Light load current operation Figure 6 Nominal load current operation VIN = 3.
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TPS65137 www.ti.com SLVS929A – MAY 2010 – REVISED OCTOBER 2012 100 95 VIN = 3.7 V, VPOS = 4.63 V, IO = 100 mA, VIN = 3.6 V, VPOS = 4.63 V, Efficiency - % L = 4.7 mH TDK VLF4012 90 VPOS 2 V/div 85 VNEG 2 V/div VNEG = -4.93 V to -3 V, IO = 50 mA, CT = 47 nF 80 10 ms/div 75 70 -5.5 -5 -4.5 -4 -3.5 -3 VNEG - V Figure 3. EFFICIENCY -2.5 -2 Figure 4. NEGATIVE OUTPUT VOLTAGE PROGRAMMING VIN = 3.6 V, VPOS = 4.63 V, VPOS 2 V/div VNEG 2 V/div VCTRL 2 V/div VNEG = -4.
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TPS65137 SLVS929A – MAY 2010 – REVISED OCTOBER 2012 www.ti.com VIN = 2.9 V to 3.4 V/50 ms, VPOS = 4.63 V, VIN = 2.9 V to 3.4 V/50 ms, VPOS = 4.63 V, VIN 1 V/div VNEG = -4.93 V, IO = 150 mA VIN 1 V/div VPOS 20 mV/div VPOS 20 mV/div VNEG 50 mV/div VNEG 50 mV/div 100 ms/div Figure 9. LINE TRANSIENT RESPONSE (150mA) VNEG = -4.93 V, IO = 100 mA 100 ms/div Figure 10. LINE TRANSIENT RESPONSE (100mA) VIN = 3.7 V, VPOS = 4.63 V, VNEG = -4.
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TPS65137 www.ti.
PAGE 10
TPS65137 SLVS929A – MAY 2010 – REVISED OCTOBER 2012 www.ti.com DETAILED DESCRIPTION The TPS65137 consists of a boost converter using a LDO as post regulator. The output voltage of the boost converter is regulated to operate the internal LDO above its dropout voltage maintaining best line and load regulation of OUTP. The internal LDO disconnects OUTP during shutdown and allows regulation of the output when the input voltage is higher than OUTP. The LDO minimizes the output voltage ripple of OUTP.
PAGE 11
TPS65137 www.ti.com SLVS929A – MAY 2010 – REVISED OCTOBER 2012 ENABLE (CTRL pin) The CTRL pin serves two functions. One is the enable and disable of the device, the other is the output voltage programming of the device. If the digital interface is not required the CTRL pin can be used as a standard enable pin for the device. Pulling CTRL high starts the converter operating with its default output voltage on OUTN of –4.93V.
PAGE 12
TPS65137 SLVS929A – MAY 2010 – REVISED OCTOBER 2012 www.ti.com Table 1. Programming Table for OUTN BIT/RISING EDGES OUTN (Vss) DAC VALUE BIT/RISING EDGES OUTN(Vss) DAC VALUE Default –4.93 V 00000 16 –3.7 V 10000 1 –5.23 V 00001 17 –3.62 V 10001 2 –5.13 V 00010 18 –3.52 V 10010 3 –5.03 V 00011 19 –3.42 V 10011 4 –4.93 V 00100 20 –3.32 V 10100 5 –4.83 V 00101 21 –3.22 V 10101 6 –4.73 V 00110 22 –3.12 V 10110 7 –4.63 V 00111 23 –3.02 V 10111 8 –4.
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TPS65137 www.ti.com SLVS929A – MAY 2010 – REVISED OCTOBER 2012 æ VIN ´ D ö Iout = (1 - D )ç Isw ÷ 2 ´ ¦s ´ L ø è (2) The maximum output current is given at the highest switching frequency of typically 1.4MHz and minimum switch current limit of 0.9A. Equation 3 is used to calculate the switch peak current. Iswpeak = VIN ´ D Iout + 2 ´ ¦s ´ L 1 - D (3) The inductor needs to be rated for this switch peak current to avoid inductor saturation.
PAGE 14
TPS65137 SLVS929A – MAY 2010 – REVISED OCTOBER 2012 www.ti.com APPLICATION INFORMATION PCB LAYOUT The layout for his device is important to keep the output voltage ripple and output voltage accuracy as low and accurate as possible. The following layout guidelines apply for this device: • Keep the switch note pad for the boost converter and inverter switch as small as possible to avoid coupling into the output.
PAGE 15
TPS65137 www.ti.com SLVS929A – MAY 2010 – REVISED OCTOBER 2012 REVISION HISTORY Changes from Original (May 2010) to Revision A Page • Changed Features 6, 7 and 8 from 4.6V to 4.63V, -5.2V to -5.23V and -4.9V to -4.93V ..................................................... 1 • Changed TYPICAL APPLICATION VPOS from 4.6V/200mA to 4.63V/200mA ...................................................................... 1 • Changed ELECTRICAL CHARACTERISTICS conditions from OUTP=4.6V to OUTP=4.63V and OUTN= -4.
PAGE 16
PACKAGE OPTION ADDENDUM www.ti.com 17-Aug-2013 PACKAGING INFORMATION Orderable Device Status (1) TPS65137ADSCR ACTIVE Package Type Package Pins Package Drawing Qty WSON DSC 10 3000 Eco Plan Lead/Ball Finish (2) Green (RoHS & no Sb/Br) MSL Peak Temp Op Temp (°C) Device Marking (3) CU NIPDAU Level-2-260C-1 YEAR (4/5) -40 to 85 PTTI (1) The marketing status values are defined as follows: ACTIVE: Product device recommended for new designs.
PAGE 17
PACKAGE MATERIALS INFORMATION www.ti.com 17-Aug-2013 TAPE AND REEL INFORMATION *All dimensions are nominal Device Package Package Pins Type Drawing SPQ Reel Reel A0 Diameter Width (mm) (mm) W1 (mm) B0 (mm) K0 (mm) P1 (mm) W Pin1 (mm) Quadrant TPS65137ADSCR WSON DSC 10 3000 330.0 12.4 3.3 3.3 1.1 8.0 12.0 Q2 TPS65137ADSCR WSON DSC 10 3000 330.0 12.4 3.3 3.3 1.1 8.0 12.
PAGE 18
PACKAGE MATERIALS INFORMATION www.ti.com 17-Aug-2013 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) TPS65137ADSCR WSON DSC 10 3000 367.0 367.0 35.0 TPS65137ADSCR WSON DSC 10 3000 367.0 367.0 35.
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IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, enhancements, improvements and other changes to its semiconductor products and services per JESD46, latest issue, and to discontinue any product or service per JESD48, latest issue. Buyers should obtain the latest relevant information before placing orders and should verify that such information is current and complete.