TPS65131-Q1 Automotive Split-Rail Converter with Dual, Positive and Negative Outputs (750mA typ) | TI.com

TPS65131-Q1 (ACTIVE) Automotive Split-Rail Converter with Dual, Positive and Negative Outputs (750mA typ)

 

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  • TPS65100-Q1  -  The device works with displays requiring +AVDD (instead of +/-AVDD). Integrates as well VGH, VGL, Vcom & LDO
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Description

The TPS65131-Q1 device is dual-output dc-dc converter generating a positive output voltage up to 15 V and a negative output voltage down to –15 V with output currents of typically 200 mA, depending on input-voltage to output-voltage ratio. With a total efficiency up to 85%, the device is ideal for portable battery-powered equipment. The input-voltage range of 2.7 V to 5.5 V allows, for example, 3.3-V and 5-V rails to power the TPS65131-Q1 device. The TPS65131-Q1 device comes in a QFN-24 package with thermal pad. Requiring few and small external components, the overall solution size can be small.

The converter operates with a fixed-frequency PWM control topology and, with power-save mode enabled, uses a pulse-skipping mode at light load currents. In operation, the typical overall device quiescent current is only 500 µA. In shutdown, the device draws typically 0.2 µA. Independent enable pins allow power-up and power-down sequencing for both outputs. The device has an internal current limit, overvoltage protection, and a thermal shutdown for highest reliability under fault conditions.

The TPS65131-Q1 device is qualified for automotive applications, according to AEC-Q100 temperature grade 2. The electrical characteristics are tested over –40°C to 125°C device junction temperature. This, combined with lowest shutdown currents, small solution size, package with thermal pad, plus good efficiency and protection features, targets automotive and industrial applications.

Features

  • Qualified for Automotive Applications
  • AEC-Q100 Test Guidance With the Following Results:
    • Device Temperature Grade 2: –40°C to 105°C Ambient Operating Temperature Range
    • Electrical Characteristics Tested Over –40°C to 125°C Junction Temperature Range
    • Device HBM ESD Classification Level H1C
    • Device CDM ESD Classification Level C4B
  • Dual Adjustable Output Voltages up to 15 V and down to –15 V
  • 2–A Typical Switch-Current Limit for Boost and Inverter Main Switches
  • High Conversion Efficiency
    • Up to 91% at Positive Output Rail
    • Up to 85% at Negative Output Rail
    • Power-Save Mode at Low Load
  • Independent Enable Inputs for Power-Up and Power-Down Sequencing
  • Control Output for External PFET to Support Complete Supply Disconnect When Shut Down
  • 2.7-V to 5.5-V Input-Voltage Range
  • Minimum 1.25-MHz Fixed-Frequency PWM Operation
  • Thermal Shutdown
  • Overvoltage Protection on Both Outputs
  • 0.2-µA Typical Shutdown Current
  • Small 4-mm × 4-mm QFN-24 Package (RGE)

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WEBENCH® Designer TPS65131-Q1

  Min   Max Range
Vin1  V 3.00 to 5.50V
Vout1  V 3.2 to 15V
Iout1  A ≤ 1.95A
 
Vin2  V 3.00 to 5.50V
Vout2  V -15 to -2V
Iout2  A ≤ 1.95A
 
Ambient Temp  °C -40.00 to 125.00°C

Parametrics

Compare all products in LCD & OLED display power & drivers Email Download to Excel
Part number Order Display type IC integration Vin (Min) (V) Vin (Max) (V) Source driver voltage (Min) (V) Source driver voltage (Max) (V) Level shifter/scan driver (ch) V_POS (Min) (V) V_POS (Max) (V) V_NEG (Min) (V) V_NEG (Max) (V) Special function Topology Type Rating Package size: mm2:W x L (PKG) Package Group
TPS65131-Q1 Order now LCD Bipolar     LCD Bias     2.7     5.5     -15     15     0     3.2     15     -15     -2     Adjustable Sequencing     Split-Rail     Converter     Automotive     24VQFN: 16 mm2: 4 x 4 (VQFN | 24)     VQFN | 24    
TPS65130 Order now LCD Bipolar     LCD Bias     2.7     5.5     -15     15     0     3.2     15     -15     -2     Adjustable Sequencing     Split-Rail     Converter     Catalog     24VQFN: 16 mm2: 4 x 4 (VQFN | 24)     VQFN | 24    
TPS65131 Order now LCD Bipolar     LCD Bias     2.7     5.5     -15     15     0     3.2     15     -15     -2     Adjustable Sequencing     Split-Rail     Converter     Catalog     24VQFN: 16 mm2: 4 x 4 (VQFN | 24)     VQFN | 24    
TPS65132 Order now LCD Bipolar     LCD Bias     2.5     5.5     -6     6     0     4     6     -6     -4     Adjustable Sequencing
I2C I/F
Output Discharge    
Split-Rail     Converter     Catalog     See datasheet (DSBGA)
20WQFN: 12 mm2: 4 x 3 (WQFN | 20)    
DSBGA | 15
WQFN | 20