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TPS53632G

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Half-bridge, D-CAP+ controller for 48-V GaN DC/DC converter

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Data sheet

TPS53632G

ACTIVE
Data sheet Order now

Product details

Topology Half bridge Control mode Current Duty cycle (max) (%) 50 Switching frequency (max) (kHz) 2000 Features Light-load efficiency UVLO thresholds on/off (V) 2.8/2.6 Operating temperature range (°C) -10 to 105 Rating Catalog Vin (max) (V) 3.6
Topology Half bridge Control mode Current Duty cycle (max) (%) 50 Switching frequency (max) (kHz) 2000 Features Light-load efficiency UVLO thresholds on/off (V) 2.8/2.6 Operating temperature range (°C) -10 to 105 Rating Catalog Vin (max) (V) 3.6
VQFN (RSM) 32 16 mm² 4 x 4
  • Valley Current Mode with Constant ON Time Control
  • Lossless Current Sensing Scheme
  • I2C Interface for VID Control and Telemetry
  • Programmable I2C Addresses up to Eight Devices
  • Switching Frequency up to 1 MHz
  • Digital Current Monitor
  • 7-Bit, DAC Output Range: 0.50-V to 1.52-V with 10-mV Step
  • Accurate, Adjustable Voltage Positioning or Zero Slope Load-Line
  • Selectable, 8-Level Current Limit
  • Adjustable Output Slew Rate Control
  • Default Boot Voltage: 1.00 V
  • Small, 4-mm × 4-mm, 32-Pin, VQFN, PowerPAD Package
  • Valley Current Mode with Constant ON Time Control
  • Lossless Current Sensing Scheme
  • I2C Interface for VID Control and Telemetry
  • Programmable I2C Addresses up to Eight Devices
  • Switching Frequency up to 1 MHz
  • Digital Current Monitor
  • 7-Bit, DAC Output Range: 0.50-V to 1.52-V with 10-mV Step
  • Accurate, Adjustable Voltage Positioning or Zero Slope Load-Line
  • Selectable, 8-Level Current Limit
  • Adjustable Output Slew Rate Control
  • Default Boot Voltage: 1.00 V
  • Small, 4-mm × 4-mm, 32-Pin, VQFN, PowerPAD Package

The TPS53632G device is a half-bridge PWM controller with D-CAP+ architecture that provides fast transient response, lowest outputcapacitance and high efficiency in single stage conversion directly from 48-V bus. The TPS53632G device supports the standard I2C Rev 3.0 interface for dynamic controlof the output voltage and current monitor telemetry. Paired with TI GaN power stages and drivers,the TPS53632G can switch up to 1 MHz to minimize magnetic component size and reduce overall boardspace. The LMG5200 GaN power stage is designed specifically for this controller to achieve highfrequency and efficiency as high as 92% with 48-V to 1-V conversion.

Other features include adjustable control of output slew rate and voltage positioning. Inaddition, the TPS53632G device can be used along with other TI discrete power MOSFETs and driversfor silicon-based half bridge solutions. The TPS53632G device is packaged in a space saving,thermally enhanced, 32-pin VQFN package and is rated to operate at a range between –10°C and105°C.

The TPS53632G device is a half-bridge PWM controller with D-CAP+ architecture that provides fast transient response, lowest outputcapacitance and high efficiency in single stage conversion directly from 48-V bus. The TPS53632G device supports the standard I2C Rev 3.0 interface for dynamic controlof the output voltage and current monitor telemetry. Paired with TI GaN power stages and drivers,the TPS53632G can switch up to 1 MHz to minimize magnetic component size and reduce overall boardspace. The LMG5200 GaN power stage is designed specifically for this controller to achieve highfrequency and efficiency as high as 92% with 48-V to 1-V conversion.

Other features include adjustable control of output slew rate and voltage positioning. Inaddition, the TPS53632G device can be used along with other TI discrete power MOSFETs and driversfor silicon-based half bridge solutions. The TPS53632G device is packaged in a space saving,thermally enhanced, 32-pin VQFN package and is rated to operate at a range between –10°C and105°C.
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Technical documentation

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Type Title Date
* Data sheet TPS53632G D-CAP+™ Half-Bridge PWM Controller Optimized for GaN-based 48-V DC/DC Converter with I2C Interface datasheet (Rev. A) PDF | HTML 10 Jun 2016
EVM User's guide Using the LMG5200POLEVM-10A GaN 48V-1V Point-of-Load EVM (Rev. B) 02 Aug 2017
Technical article Enabling 48V-to-POL single-stage conversion with GaN PDF | HTML 05 Jul 2016
Technical article Highlights from APEC 2016 – GaN, 48V POL, wireless charging and more! PDF | HTML 28 Mar 2016

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Evaluation board

LMG5200POLEVM-10 — LMG5200 GaN 48V to 1V point of load evaluation module

The LMG5200POLEVM-10 EVM is designed to evaluate the LMG5200 GaN power stage and the TPS53632G half-bridge point-of-load controller in a 48V to 1V application.  This EVM implements the 48V-1V converter as a single-stage hard-switched half-bridge with current-doubler rectifier.  The EVM (...)

User guide: PDF
Not available on TI.com
Bill of materials (BOM)

PMP4497 BOM

TIDRNB1.PDF (67 KB)
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Schematic

PMP4497 Schematic

TIDRNB0.PDF (519 KB)
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Reference designs

PMP22089 — Half-bridge point-of-load converter reference design with GaN technology

This reference design modifies the inboard transformer turns ratio from 5:1 to 3:1 to reduce input the range. The board supports input voltages from 24 V to 32 V and output voltages between 0.5 V to 1.0 V with output currents up to 40 A. This topology efficiently supports the high step-down ratio (...)
Test report: PDF
Schematic: PDF
Reference designs

PMP4497 — LMG5200 48V to 1V/40A Single Stage Converter Reference Design

The PMP4497 is a GaN-based reference design solution for the Vcore such as FPGA, ASIC applications. With high integration and low switching loss, the GaN module LMG5200 enables a high efficiency single stage from 48V to 1.0V solution to replace the traditional 2-stage solution. This design shows (...)
Test report: PDF
Schematic: PDF
Package Pins Download
VQFN (RSM) 32 View options
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