®
RT7075
3 Phase PMSM/BLDC Motor Controller with Gate Driver
General Description
Features
Integrated 3 Phase PMSM/BLDC Controller with
The RT7075 is a two-in-one application specific IC which
consists of a 3-phase motor controller and a gate driver
designed for PMSM/BLDC motor applications.
Gate Driver
Sensorless, Sinewave Field Oriented Control (FOC)
Protections : SCP, UVLO and Locked-Rotor
Protection
The RT7075 integrates the ARM 32-bit Cortex-M0 core
with peripheral circuits to perform field oriented control
(FOC) and sensorless motor control. In additions, system
level peripheral functions, such as ADC, DAC,
communication interface, SVPWM, watchdog timer,
current sensing, undervoltage-lockout (UVLO), short
circuit protection(SCP) and locked-rotor protection are
integrated so as to reduce component count, PCB size
and system cost.
PMSM/BLDC Motor Controller :
ARM 32-Bit Cortex-M0 CPU, Up to 60MHz
Memories Size : 16KB MTP, Internal ROM with
Embedded Motor Control Library and 4KB SRAM
Power Management : Normal or Deep Sleep
Programming Soft-Start
Communication Interface : I2C and UART
10-Channel 10-Bit ADC
Furthermore, the RT7075 drives external N-Channel
MOSFETs in three half-bridge configuration with an
external bootstrap network up to 600V.
1-Channel Current Type 6-Bit DAC
1-Channel Voltage Type 8-Bit DAC
Gate Driver :
Floating Channel Designed for Bootstrap
Operation up to 600V
A dead time control is built-in to prevents shoot-through
of the externalN-Channel MOSFETs.
Sourcing/Sinking Current :
The RT7075 is available in LQFP-48L 7x7 package.
RT7075A : 290mA/600mA
RT7075B : 17mA/600mA
Ordering Information
RT7075C : 12mA/600mA
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RT7075
Matched Propagation Delays for All Channels
VV15V and VVBU/V/W Supply Range : 13V to 20V
RT7075xGPL with Firmware Code UXYYY Certified
by UL for IEC-60730-1 Class B Compliance with
Recognized Marking :
Programmed Firmware Code
Package Type
PL : LQFP-48L 7x7 (L-Type)
Lead Plating System
G : Green
UL Certified No. E478780 (UL60730)
(Halogen Free and Pb Free)
RT7075 Version
(Refer to Version Table)
Applications
Note :
Richtek products are :
PMSM/BLDC Motor
Pedestal Fan
RoHS compliant and compatible with the current require-
ments of IPC/JEDEC J-STD-020.
Ceiling Fan
Air Conditioner Indoor/Outdoor Fan
Pump
Suitable for use in SnPb or Pb-free soldering processes.
RT7075 Version Table
Version
RT7075A
RT7075B
RT7075C
Sourcing Current
290mA
17mA
12mA
Copyright 2018 Richtek Technology Corporation. All rights reserved.
©
is a registered trademark of Richtek Technology Corporation.
DS7075-04 November 2018
www.richtek.com
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RICHTEK [ RICHTEK TECHNOLOGY CORPORATION ]
