Datasheet

ManualsBrandsTEXAS INSTRUMENTS ManualsPMICsPMIC - DC/DC voltage regulator Boost SON 10

294kW

V 15V/50mA

TPS61093

CP1

CP2

FBEN

OUT

VIN

GNDSS

4.7 Fm

10.2kW

10 Hm

V 1.6Vto6V

200kW

1 Fm

100nF

C2 0.1 Fm

1 Fm

TPS61093

www.ti.com

SLVS992A –SEPTEMBER 2009–REVISED NOVEMBER 2009

LOW INPUT BOOST CONVERTER WITH INTEGRATED POWER DIODE AND

INPUT/OUTPUT ISOLATION

Check for Samples: TPS61093

FEATURES

DESCRIPTION

• Input Range: 1.6-V to 6-V

• Integrated Power Diode and Isolation FET

The TPS61093 is a 1.2-MHz, fixed-frequency boost

converter designed for high integration and high

• 20-V Internal Switch FET With 1.1-A Current

reliability. The IC integrates a 20-V power switch,

• Fixed 1.2-MHz Switching Frequency

input/output isolation switch, and power diode. When

• Efficiency at 15-V Output up to 88%

the output current exceeds the over load limit, the

IC’s isolation switch opens up to disconnect the

• Over Load and Over Voltage Protection

output from the input. This protects the IC and the

• Programmable Soft Start-up

input supply. The isolation switch also disconnects

• Load Discharge Path After IC Shutdown

the output from the input during shutdown to minimize

leakage current. When the IC is shutdown, the output

• 2.5 × 2.5 × 0.8 mm SON Package

capacitor is discharged to a low voltage level by

internal diodes. Other protection features include

APPLICATIONS

1.1-A peak over-current protection (OCP) at each

• Glucose Meter

cycle, output over voltage protection (OVP), thermal

• OLED Power Supply

shutdown, and under voltage lockout (UVLO).

• 3.3-V to 12-V, 5-V to 12-V Boost Converter

With its 1.6-V minimum input voltage, the IC can be

battery, or 3.3-V and 5-V regulated supply. The

output can be boosted up to 17-V. The TPS61093 is

available in 2.5 mm × 2.5 mm SON package with

thermal pad.

Figure 1. Typical Application

ORDERING INFORMATION

(1)

PART NUMBER

(2)

PACKAGE MARKING

–40°C to 85°C TPS61093DSK OAP

(1) For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI

web site at www.ti.com

(2) The DSK package is available in tape and reel. Add R suffix (TPS61093DSKR) to order quantities of 3000 parts per reel, or add T suffix

(TPS61093DSKT) to order 250 parts per reel.

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 (23 pages)

PAGE 1
TPS61093 www.ti.com SLVS992A – SEPTEMBER 2009 – REVISED NOVEMBER 2009 LOW INPUT BOOST CONVERTER WITH INTEGRATED POWER DIODE AND INPUT/OUTPUT ISOLATION Check for Samples: TPS61093 FEATURES 1 • • • • • • • • • DESCRIPTION Input Range: 1.6-V to 6-V Integrated Power Diode and Isolation FET 20-V Internal Switch FET With 1.1-A Current Fixed 1.
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TPS61093 SLVS992A – SEPTEMBER 2009 – REVISED NOVEMBER 2009 www.ti.com ABSOLUTE MAXIMUM RATINGS over operating free-air temperature range (unless otherwise noted) (1) VALUE / UNITS Supply voltage on pin VIN (2) Voltage on pins CP2, EN, and SS –0.3 V to 7 V (2) –0.3 V to 7 V Voltage on pin CP1 and FB (2) –0.3 V to 3 V Voltage on pin SW, VO, and OUT (2) –0.
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TPS61093 www.ti.com SLVS992A – SEPTEMBER 2009 – REVISED NOVEMBER 2009 ELECTRICAL CHARACTERISTICS VIN = 3.6 V, EN = VIN, TA = –40°C to 85°C, typical values are at TA = 25°C (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT 0.9 1.5 mA 1 μA 1.5 1.55 V SUPPLY CURRENT VIN Input voltage range, VIN IQ Operating quiescent current into VIN Device PWM switching no load 1.
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TPS61093 SLVS992A – SEPTEMBER 2009 – REVISED NOVEMBER 2009 www.ti.com DEVICE INFORMATION PIN ASSIGNMENTS TOP VIEW GND 1 10 VIN VO SW Thermal Pad CP2 OUT CP1 FB EN 5 6 SS 10-PIN 2.5mm x 2.5mm QFN PIN FUNCTIONS PIN NAME NO. I/O DESCRIPTION VIN 2 I IC Supply voltage input. VO 10 O Output of the boost converter. When the output voltage exceeds the over voltage protection (OVP) threshold, the power switch turns off until VO drops below the over voltage protection hysteresis.
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TPS61093 www.ti.com SLVS992A – SEPTEMBER 2009 – REVISED NOVEMBER 2009 FUNCTIONAL BLOCK DIAGRAM FB EN CP2 CP1 SW OUT VO Soft Startup Ref.
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TPS61093 SLVS992A – SEPTEMBER 2009 – REVISED NOVEMBER 2009 www.ti.com EFFICIENCY vs LOAD EFFICIENCY vs LOAD 100 100 95 OUT = 15 V VI = 3.3 V 85 85 80 80 75 VI = 2.5 V 70 VI =1.8 V 65 70 55 55 50 50 45 45 100 40 1 1000 VI = 2.5 V VI =1.8 V 65 60 10 VI = 3.3 V 75 60 40 1 VI = 4.2 V 90 Efficiency - % Efficiency - % 90 OUT = 10 V 95 VI = 4.2 V 10 100 Load - mA Load - mA Figure 2. Figure 3. FB VOLTAGE vs FREE-AIR TEMPERATURE FB VOLTAGE vs INPUT VOLTAGE 0.
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TPS61093 www.ti.com SLVS992A – SEPTEMBER 2009 – REVISED NOVEMBER 2009 SWITCH CURRENT LIMIT vs FREE-AIR TEMPERATURE 3.3V to 3.6V LINE TRANSIENT RESPONSE 1.3 OUT 500 mV/div; AC ILIM - A 1.2 1.1 Inductor Current 200 mA/div 1 0.9 0.8 -40 -20 0 20 40 60 80 TA - Free-Air Temperature - ºC 100 t - Time = 1 ms/div 120 Figure 6. Figure 7.
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TPS61093 SLVS992A – SEPTEMBER 2009 – REVISED NOVEMBER 2009 www.ti.com PWM CONTROL IN DCM PULSE SKIP MODE AT LIGHT LOAD OUT 50 mV/div; AC OUT 100 mV/div; AC SW 10 V/div SW 10 V/div Inductor Current 20 mA/div Inductor Current 100 mA/div t - Time = 1 ms/div t - Time = 200 ns/div Figure 10. Figure 11. SOFT START-UP VO 5 V/div Inductor Current 100 mA/div OUT 5 V/div t - Time = 40 ms/div Figure 12.
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TPS61093 www.ti.com SLVS992A – SEPTEMBER 2009 – REVISED NOVEMBER 2009 DETAILED DESCRIPTION OPERATION The TPS61093 is a highly integrated boost regulator for up to 17-V output. In addition to the on-chip 1-A PWM switch and power diode, this IC also integrates an output-side isolation switch as shown in the functional block diagram. One common issue with conventional boost regulators is the conduction path from input to output even when the PWM switch is turned off.
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TPS61093 SLVS992A – SEPTEMBER 2009 – REVISED NOVEMBER 2009 www.ti.com APPLICATION INFORMATION SWITCH DUTY CYCLE The maximum switch duty cycle (D) of the TPS61093 is 90% (minimum). The duty cycle of a boost converter under continuous conduction mode (CCM) is given by: Vout + 0.8 V - Vin D= Vout + 0.8 V (1) The duty cycle must be lower than the specification in the application; otherwise the output voltage cannot be regulated. The TPS61093 has a minimum ON pulse width once the PWM switch is turned on.
PAGE 11
TPS61093 www.ti.com SLVS992A – SEPTEMBER 2009 – REVISED NOVEMBER 2009 WITHOUT ISOLATION FET The efficiency of the TPS61093 can be improved by connecting the load to the VO pin instead of the OUT pin. The power loss in the isolation FET is then negligible, as shown in Figure 13.
PAGE 12
TPS61093 SLVS992A – SEPTEMBER 2009 – REVISED NOVEMBER 2009 IL_peak = IL_DC + IL_DC = DIL = www.ti.com D IL 2 Vout ´ Iout Vin ´ h 1 é 1 1 öù æ + êL ´ ¦SW ´ ç ÷ú è Vout + 0.8 V - VIN VIN ø û ë (5) Where IL_peak = Peak switch current IL_DC = Inductor average current ΔIL = Inductor peak to peak current η = Estimated converter efficiency Normally, it is advisable to work with an inductor peak-to-peak current of less than 30% of the average inductor current.
PAGE 13
TPS61093 www.ti.com SLVS992A – SEPTEMBER 2009 – REVISED NOVEMBER 2009 SMALL SIGNAL STABILITY The TPS61093 integrates slope compensation and the RC compensation network for the internal error amplifier. Most applications will be control loop stable if the recommended inductor and input/output capacitors are used. For those few applications that require components outside the recommended values, the internal error amplifier’s gain and phase are presented in Figure 14.
PAGE 14
TPS61093 SLVS992A – SEPTEMBER 2009 – REVISED NOVEMBER 2009 www.ti.com LAYOUT CONSIDERATIONS As for all switching power supplies, especially those running at high switching frequency and high currents, layout is an important design step. If layout is not carefully done, the regulator could suffer from instability as well as noise problems. To maximize efficiency, switch rise and fall times are very fast. To prevent radiation of high frequency noise (e.g.
PAGE 15
TPS61093 www.ti.com SLVS992A – SEPTEMBER 2009 – REVISED NOVEMBER 2009 10 V, –10 V Dual Output Boost Converter -10V/50mA Vin 3.3V L1 C4 C6 4.7mF 10mH C1 4.7mF 0.1mF TPS61093 BAT54S C3 100nF R3 200kW VIN SW CP1 VO CP2 OUT EN FB SS GND C5 1mF C2 4.7mF 10V/50mA R1 190kW R2 10.2kW +10V OUTPUT 5V/DIV -10V OUTPUT 5V/DIV Inductor Current 500mA/DIV t - Time = 40 ms/div Figure 15.
PAGE 16
TPS61093 SLVS992A – SEPTEMBER 2009 – REVISED NOVEMBER 2009 www.ti.com REVISION HISTORY Changes from Original (September 2009) to Revision A Page • Added information to OPERATION description .................................................................................................................... 9 • Changed OUTPUT PROGRAM equations .........................................................................................................................
PAGE 17
PACKAGE OPTION ADDENDUM www.ti.
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PACKAGE MATERIALS INFORMATION www.ti.com 23-Dec-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 TPS61093DSKR SON DSK 10 3000 180.0 8.4 2.8 2.8 1.0 4.0 8.0 Q2 TPS61093DSKR SON DSK 10 3000 179.0 8.4 2.73 2.73 0.8 4.0 8.0 Q2 TPS61093DSKT SON DSK 10 250 180.0 8.4 2.8 2.8 1.0 4.0 8.
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PACKAGE MATERIALS INFORMATION www.ti.com 23-Dec-2013 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) TPS61093DSKR SON DSK 10 3000 210.0 185.0 35.0 TPS61093DSKR SON DSK 10 3000 203.0 203.0 35.0 TPS61093DSKT SON DSK 10 250 210.0 185.0 35.0 TPS61093DSKT SON DSK 10 250 203.0 203.0 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.