®
RT7080
Integrated Power Module for PMSM/BLDC Motor Driver
General Description
The RT7080 is a highly integrated power module designed
for advanced
motor drive applications. This module
integrates an ARM-base motor controller, a 3-phase gate
driver, six MOSFETs, a 5V LDO, a charge pump circuit, a
buck converter and three current sense resistors, those
circuits are specifically implemented for PMSM/BLDC
motor applications.
For main control scheme, the RT7080 integrates an 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
fully integrated so as to reduce component count, PCB
size and system cost. Furthermore, the RT7080 drives
internal N-Channel MOSFETs in a configuration of three
half-bridges with a built-in charge pump circuit up to 28V.
With these designs, the RT7080 therefore offers great
benefits to users such as cost effectiveness, easy design,
board space saving, production flexibility and better quality
control. The RT7080 is available in WQFN-40L
6x6
packages.
Features
Integrated 3-Phase PMSM/BLDC Controller, Gate
Driver, Charge Pump, Buck Converter, 5V LDO and
Power MOSFETs
Input Voltage Range : 8V to 28V
Phase Peak Current Up to 3A
No External Sense Resistors Required
Sensorless, Sinewave Field Oriented Control (FOC)
Protections : Over-Current, UVLO, Locked-Rotor and
Thermal Detection
PMSM/BLDC Motor Controller :
�½
ARM 32-bit Cortex-M0 CPU, Up to 60MHz
�½
Memories Size : 16kB MTP, Internal ROM with
Embedded Motor Control Library and 4kB SRAM
�½
Power Management : Normal or Deep Sleep
2
�½
Communication Interface : I C and UART
�½
Support Two-Wire Programming
�½
4-Channel 10-Bit ADC for System Application
WQFN-40L 6x6 Package
Applications
Pedestal Fan
Ventilation Fan
Robot Vacuum Cleaner
Water Pump
Ordering Information
RT7080
-
Programmed Firmware Code
Package Type
QW : WQFN-40L 6x6 (W-Type)
(Exposed Pad-Option 1)
Lead Plating System
G : Green (Halogen Free and Pb Free)
Note :
Richtek products are :
�½
RoHS compliant and compatible with the current require-
ments of IPC/JEDEC J-STD-020.
Suitable for use in SnPb or Pb-free soldering processes.
�½
Copyright
©
2019 Richtek Technology Corporation. All rights reserved.
is a registered trademark of Richtek Technology Corporation.
DS7080-00 August 2019
www.richtek.com
1
RICHTEK [ RICHTEK TECHNOLOGY CORPORATION ]
