Texas Instruments TPS61092 Instruction Manual

Texas Instruments TPS61092 Instruction Manual

Tps6109 series synchronous boost converter with 2-a switch

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TPS6109x Synchronous Boost Converter With 2-A Switch
1 Features
Synchronous (96% Efficient) Boost Converter
1
With 500-mA Output Current From 1.8-V Input
Available in a 16-Pin VQFN 4 x 4 Package
Device Quiescent Current: 20 µA (Typ)
Input Voltage Range: 1.8 V to 5.5 V
Adjustable Output Voltage Up to 5.5 V Fixed
Output Voltage Options
Power Save Mode for Improved Efficiency at Low
Output Power
Low Battery Comparator
Low EMI-Converter (Integrated Antiringing Switch)
Load Disconnect During Shutdown
Over-Temperature Protection
2 Applications
All Single Cell Li or Dual Cell Battery or USB
Powered Operated Products
– MP3 Player
– PDAs
– Other Portable Equipment
1.8 V to 5 V
C1
10 µF
Input
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.
Sample &
Product
Buy
Folder
Simplified Application Schematic
L1
SW
6.8 µH
VBAT
R1
EN
LBI
R2
SYNC
GND
TPS6109x
Tools &
Technical
Software
Documents
SLVS484C – JUNE 2003 – REVISED DECEMBER 2014
3 Description
The TPS6109x devices provide a power supply
solution for products powered by either a one-cell Li-
Ion or Li-Polymer, or a two-cell alkaline, NiCd or
NiMH battery and required supply currents up to or
higher than 1 A. The converter generates a stable
output voltage that is either adjusted by an external
resistor divider or fixed internally on the chip. It
provides high efficient power conversion and is
capable of delivering output currents up to 0.5 A at 5
V at a supply voltage down to 1.8 V. The
implemented boost converter is based on a fixed
frequency, pulse-width- modulation (PWM) controller
using a synchronous rectifier to obtain maximum
efficiency. Boost switch and rectifier switch are
connected internally to provide the lowest leakage
inductance and best EMI behavior possible. The
maximum peak current in the boost switch is limited
to a value of 2500 mA.
The converter can be disabled to minimize battery
drain. During shutdown, the load is completely
disconnected from the battery. A low-EMI mode is
implemented to reduce ringing and, in effect, lower
radiated electromagnetic energy when the converter
enters the discontinuous conduction mode.
The output voltage can be programmed by an
external resistor divider or is fixed internally on the
chip.
The device is packaged in a 16-pin VQFN 4-mm x 4-
mm (16 RSA) package.
Device Information
PART NUMBER
TPS61090
TPS61091
TPS61092
(1) For all available packages, see the orderable addendum at
the end of the datasheet.
VOUT
C2
2.2 µF
R3
FB
R4
LBO
PGND
Support &
Community
TPS61090, TPS61091, TPS61092
(1)
PACKAGE
BODY SIZE (NOM)
VQFN (10)
4.00 mm × 4.00 mm
e.g. 5 V up to
500 mA
C3
100 µF
R5
Low Battery
Output

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Summary of Contents for Texas Instruments TPS61092

  • Page 1 Product Tools & Technical Community Folder Software Documents TPS61090, TPS61091, TPS61092 SLVS484C – JUNE 2003 – REVISED DECEMBER 2014 TPS6109x Synchronous Boost Converter With 2-A Switch 1 Features 3 Description The TPS6109x devices provide a power supply • Synchronous (96% Efficient) Boost Converter solution for products powered by either a one-cell Li- With 500-mA Output Current From 1.8-V Input...
  • Page 2: Table Of Contents

    Added Pin Configuration and Functions section, ESD Ratings table, Feature Description section, Device Functional Modes, Application and Implementation section, Power Supply Recommendations section, Layout section, Device and Documentation Support section, and Mechanical, Packaging, and Orderable Information section ......Submit Documentation Feedback Copyright © 2003–2014, Texas Instruments Incorporated Product Folder Links: TPS61090 TPS61091 TPS61092...
  • Page 3: Device Comparison Table

    Enable/disable power save mode (1: VBAT disabled, 0: GND enabled, clock signal for synchronization) 3, 4 Boost and rectifying switch input VBAT Supply voltage VOUT 1, 15, 16 DC-DC output Submit Documentation Feedback Copyright © 2003–2014, Texas Instruments Incorporated Product Folder Links: TPS61090 TPS61091 TPS61092...
  • Page 4: Specifications

    0.4 x I Boost switch on resistance VOUT= 5 V mΩ Rectifying switch on resistance VOUT= 5 V Total accuracy –3% Line regulation 0.6% Load regulation 0.6% Submit Documentation Feedback Copyright © 2003–2014, Texas Instruments Incorporated Product Folder Links: TPS61090 TPS61091 TPS61092...
  • Page 5 0.2 × VBAT EN, SYNC input high voltage 0.8 × VBAT EN, SYNC input current Clamped on GND or VBAT 0.01 µA Overtemperature protection °C Submit Documentation Feedback Copyright © 2003–2014, Texas Instruments Incorporated Product Folder Links: TPS61090 TPS61091 TPS61092...
  • Page 6: Typical Characteristics

    Figure 12 V I - Input Voltage - V V I - Input Voltage - V Figure 1. TPS61091 Maximum Output Current vs Input Figure 2. TPS61092 Maximum Output Current vs Input Voltage Voltage = 2.4 V = 1.8 V = 2.5 V...
  • Page 7 4.85 1000 10000 - Input Voltage - V - Output Current - mA Figure 10. TPS61092 No-Load Supply Current Into VBAT Figure 9. TPS61092 Output Voltage vs Output Current Voltage Submit Documentation Feedback Copyright © 2003–2014, Texas Instruments Incorporated Product Folder Links:...
  • Page 8 ° -40 C ° - Input Voltage - V - Input Voltage - V Figure 11. TPS61092 No-Load Supply Current Into VOUT vs Figure 12. Minimum Load Resistance at Start-Up vs Input Input Voltage Voltage Submit Documentation Feedback Copyright © 2003–2014, Texas Instruments Incorporated...
  • Page 9: Parameter Measurement Information

    List of Components: TPS6109x U1 = TPS6109xRSA L1 = Sumida CDRH103R-6R8 C1, C2 = X7R/X5R Ceramic C3 = Low ESR Tantalum Figure 13. Parameter Schematic Submit Documentation Feedback Copyright © 2003–2014, Texas Instruments Incorporated Product Folder Links: TPS61090 TPS61091 TPS61092...
  • Page 10: Detailed Description

    Gate Control 100 k PGND 10 pF Error Amplifier Regulator = 0.5 V Control Logic Oscillator Temperature Control SYNC Low Battery Comparator = 0.5 V Submit Documentation Feedback Copyright © 2003–2014, Texas Instruments Incorporated Product Folder Links: TPS61090 TPS61091 TPS61092...
  • Page 11: Feature Description

    When the output voltage is reached, the regulator takes control and the switch current limit is set back to 100%. Submit Documentation Feedback Copyright © 2003–2014, Texas Instruments Incorporated Product Folder Links: TPS61090 TPS61091 TPS61092...
  • Page 12: Device Functional Modes

    SYNC pin is high, across whole load SYNC pin is low, Boost in normal switching operation medium to heavy load. Boost in power save operation SYNC pin is low, light load. Submit Documentation Feedback Copyright © 2003–2014, Texas Instruments Incorporated Product Folder Links: TPS61090 TPS61091 TPS61092...
  • Page 13: Application And Implementation

    5.0 V Output Voltage Ripple ±3% VOUT Transient Response ±10% VOUT Input Voltage Ripple ±200 mV Output Current Rating 500 mA Operating Frequency 600 kHz Submit Documentation Feedback Copyright © 2003–2014, Texas Instruments Incorporated Product Folder Links: TPS61090 TPS61091 TPS61092...
  • Page 14 For example, for an output current of 500 mA at 5 V, at least 1750 mA of average current flows through the inductor at a minimum input voltage of 1.8 V. Submit Documentation Feedback Copyright © 2003–2014, Texas Instruments Incorporated Product Folder Links: TPS61090 TPS61091 TPS61092...
  • Page 15 100 µF range. For economical reasons this usually is a tantalum capacitor. Because of this the control loop has been optimized for using output capacitors with an ESR of above 30 mΩ. Submit Documentation Feedback Copyright © 2003–2014, Texas Instruments Incorporated Product Folder Links: TPS61090 TPS61091 TPS61092...
  • Page 16 Inductor Current 500 mA/Div, DC Voltage at SW 2 V/Div, DC = 2.4 V, Timebase - 200 s/Div Figure 19. DC-DC Converter Start-Up After Enable Submit Documentation Feedback Copyright © 2003–2014, Texas Instruments Incorporated Product Folder Links: TPS61090 TPS61091 TPS61092...
  • Page 17 C1, C2, C5, C6, = X7R,X5R Ceramic C3 = Low ESR Tantalum DS1 = BAT54S Figure 21. Power Supply Solution With Auxiliary Positive Output Voltage Schematic Submit Documentation Feedback Copyright © 2003–2014, Texas Instruments Incorporated Product Folder Links: TPS61090 TPS61091 TPS61092...
  • Page 18 C1, C2, C5, C6 = X7R,X5R Ceramic C3 = Low ESR Tantalum DS1 = BAT54S Figure 22. Power Supply Solution With Auxiliary Negative Output Voltage Schematic Submit Documentation Feedback Copyright © 2003–2014, Texas Instruments Incorporated Product Folder Links: TPS61090 TPS61091 TPS61092...
  • Page 19: Power Supply Recommendations

    VIA to VBAT Plane Inductor Resistors1 SYNC Output Capacitor 2 Exposed PAD Resistors2 VOUT Feedback Feedback Output Resistors2 Resistors1 LBO Resistor Capacitor 1 Figure 23. Layout Example Schematic Submit Documentation Feedback Copyright © 2003–2014, Texas Instruments Incorporated Product Folder Links: TPS61090 TPS61091 TPS61092...
  • Page 20: Thermal Considerations

    If designing for a lower junction temperature of 125°C, which is recommended, maximum heat dissipation is lower. Using the above equation (8) results in 1050 mW power dissipation. Submit Documentation Feedback Copyright © 2003–2014, Texas Instruments Incorporated Product Folder Links: TPS61090 TPS61091 TPS61092...
  • Page 21: Glossary

    Click here Click here 13.3 Trademarks PowerPAD is a trademark of Texas Instruments. All other trademarks are the property of their respective owners. 13.4 Electrostatic Discharge Caution 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 to the MOS gates.
  • Page 22 PACKAGE MATERIALS INFORMATION www.ti.com 25-Dec-2014 TAPE AND REEL INFORMATION *All dimensions are nominal Device Package Package Pins Reel Reel Pin1 Type Drawing Diameter Width (mm) (mm) (mm) (mm) (mm) Quadrant (mm) W1 (mm) TPS61090RSAR 3000 330.0 12.4 12.0 TPS61091RSAR 3000 330.0 12.4 12.0...
  • Page 23 PACKAGE MATERIALS INFORMATION www.ti.com 25-Dec-2014 *All dimensions are nominal Device Package Type Package Drawing Pins Length (mm) Width (mm) Height (mm) TPS61090RSAR 3000 338.1 338.1 20.6 TPS61091RSAR 3000 338.1 338.1 20.6 TPS61092RSAR 3000 338.1 338.1 20.6 Pack Materials-Page 2...
  • Page 27 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.

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