SLVSBD1B December 2012 – August 2025 TPS65175
PRODUCTION DATA
- 1
- 1 Features
- 2 Applications
- 3 Description
- 4 Pin Configurations
- 5 Ordering Information #GUID-A66BA10C-7D19-4133-842F-4CC0C2AD52C6/SLVSAP8211
- 6 Specifications
- 7 DAC Range Summary
-
8 Detailed Description
- 8.1 Boost Converter (VDD)
- 8.2 Boost Converter Design Procedure
- 8.3 Buck Converter (VCC)
- 8.4 Buck Converter Design Procedure
- 8.5 Synchronous Buck Converter (HVDD)
- 8.6 Synchronous Buck Converter Design Procedure
- 8.7 Positive Charge Pump Controller (VGH) and Temperature Compensation
- 8.8 Positive Charge Pump Design Procedure
- 8.9 VGH Temperature Compensation
- 8.10 Negative Charge Pump (VGL)
- 8.11 Negative Charge Pump Design Procedure
- 8.12 P-Vcom Voltage and Gain (VCOM)
- 8.13 P-Vcom Design Procedure
- 8.14 P-Vcom Temperature Compensation
- 8.15 Gamma Buffer (GMA1-GMA6)
- 8.16 Level Shifters
- 8.17 State Machine
- 8.18 GCLK
- 8.19 MCLK
- 8.20 GST
- 8.21 E/O
- 8.22 Reverse
- 8.23 VGH_F and VGH_R
- 8.24 VST
- 8.25 RESET
- 8.26 EVEN and ODD
- 8.27 Abnormal Operation
- 8.28 CLK1 to CLK6
- 8.29 Gate Voltage Shaping
- 8.30 Power Supply Sequencing (CLK1-CLK6, VST, RESET)
- 8.31 Power Supply Sequencing (EVEN, ODD)
- 8.32 Power Supply Sequencing (VGH_F, VGH_R)
- 101
- 8.33 Typical Applications
- 9 APPENDIX – I2C INTERFACE
- 10Detailed Description
- 11Register Map
- 12DAC Registers
- 13Electrostatic Discharge Caution
- 14Revision History
- 15Mechanical, Packaging, and Orderable Information
8.7.2 Positive Charge Pump Controller Operation
During normal operation, the TPS65175/A is able to provide up to 1.5 mA of base current typically and is designed to work best with transistors whose DC gain (hFE) is between 100 and 300. The charge pump is protected against short-circuits on its output, which are detected for voltages below 1 V. During short-circuit mode, the base current available from the CTRLP pin is limited to 60 μA typically. Note that if a short-circuit is detected during normal operation, the boost converter switching activity is also halted until VGH is above 1 V. Typical application circuits are shown in Figure 8-1.
Figure 8-1 Positive Charge Pump Application Circuits