TPS53632G_16 Datasheet, PDF (1/41 Pages) Texas Instruments – D-CAP+™ Half-Bridge PWM Controller Optimized for GaN-based 48-V DC/DC Converter with I2C Interface

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TPS53632G
SLUSCJ3A – APRIL 2016 – REVISED JUNE 2016
TPS53632G D-CAP+™ Half-Bridge PWM Controller
Optimized for GaN-based 48-V DC/DC Converter with I²C Interface
1 Features
•1 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
2 Applications
• 48-V Point-of-Load (POL) for Data Center and
Telecommunication
• Wide Input Range Power Supplies for Industrial
3 Description
The TPS53632G device is a half-bridge PWM
controller with D-CAP+™ architecture that provides
fast transient response, lowest output capacitance
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 control of
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 board
space. The LMG5200 GaN power stage is designed
specifically for this controller to achieve high
frequency 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. In addition, the
TPS53632G device can be used along with other TI
discrete power MOSFETs and drivers for 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 and 105°C.
PART NUMBER
TPS53632G
Device Information
PACKAGE
BODY SIZE
VQFN
4 mm × 4 mm
WHITESPACE
WHITESPACE
Simplified Schematic
HS
HB
3
2
HI
4
LI
5
HS
HI
HB
HO
GaN Driver
LI
VCC
LO
AGND
6
VCC
7
AGND
VIN
1
TPS53632G
I²C BUS
PWM_H
PWM_L
SW
8
PGND
9
LMG5200
UCC27523
INA
OUTA
INB
OUTB
Copyright © 2016, Texas Instruments Incorporated
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.