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Discrete Divice
LVMOS
Planar LVMOS Normal Trench LVMOS Split Gate Trench LVMOS Automotive MOSFET
HVMOS
Planar HVMOS Multi-Epi DPMOS Trench DPMOS
IGBT
Planar IGBT Trench IGBT SiC Hybrid IGBT RC IGBT
SiC
SiC MOS
Diode
FRD
IPM
DIP2V/SOP2V
DIP-23/SOP-23
DIP-24
DIP-25
DIP-Q25A
DIP-26
DIP-27
DIP-29
SOP-30
SOP-37
IGBT Module
Industrial Module
Automobile module
AC-DC Converter
SSR Flyback Controller IC
PSR Flyback Controller IC
Synchronous Rectifier IC
Non-isolated BUCK/BUCK-BOOST IC
PFC IC
Fast Charging IC
Power Bank Fast Charger IC
Car Charger IC
AC-DC Fast Charging Protocol IC
DC-DC Converter
DC-DC Converter IC
PoE IC
LED Lighting Driver
Dimming LED Lighting Driver
Non-dimming LED Lighting Driver
LED Headlight Driver
Automotive Low-Voltage Motor Driver
Smart Power Switches
Gate Driver IC
Three-phase Half Bridge Driver
Half Bridge Driver
PFC IGBT Gate Driver
MEMS Sensor
Triaxial Acceleration Sensor
Six- Axis Inertial Sensor
Proximity Detection and Digital Ambient Light Sensor
Heart Rate Sensor
Silicon Microphone Sensor
MCU IC
8bit MCU
32bit MCU
Integrated Driver MCU
Digital Audio/Video
CD SERVO
Audio Decode
Audio Effects Processing
Intelligent Audio
ASIC
Bipolar PWM Controller
Bipolar DC-DC
LDO
Volume and Sound Control Circuit
DC Drive Circuit
Darlington Circuit
Logic & Switch & Level Shift
Optional Amplifier
Comparator
Reference IC
Linear Regulator
Audio Circuit
LED Chip
GaN
GaAs
Discrete Divice
LVMOS
Planar LVMOS Normal Trench LVMOS Split Gate Trench LVMOS Automotive MOSFET
HVMOS
Planar HVMOS Multi-Epi DPMOS Trench DPMOS
IGBT
Planar IGBT Trench IGBT SiC Hybrid IGBT RC IGBT
SiC
SiC MOS
Diode
FRD
IPM
DIP2V/SOP2V
DIP-23/SOP-23
DIP-24
DIP-25
DIP-Q25A
DIP-26
DIP-27
DIP-29
SOP-30
SOP-37
IGBT Module
Industrial Module
Automobile module
AC-DC Converter
SSR Flyback Controller IC
PSR Flyback Controller IC
Synchronous Rectifier IC
Non-isolated BUCK/BUCK-BOOST IC
PFC IC
Fast Charging IC
Power Bank Fast Charger IC
Car Charger IC
AC-DC Fast Charging Protocol IC
DC-DC Converter
DC-DC Converter IC
PoE IC
LED Lighting Driver
Dimming LED Lighting Driver
Non-dimming LED Lighting Driver
LED Headlight Driver
Automotive Low-Voltage Motor Driver
Smart Power Switches
Gate Driver IC
Three-phase Half Bridge Driver
Half Bridge Driver
PFC IGBT Gate Driver
MEMS Sensor
Triaxial Acceleration Sensor
Six- Axis Inertial Sensor
Proximity Detection and Digital Ambient Light Sensor
Heart Rate Sensor
Silicon Microphone Sensor
MCU IC
8bit MCU
32bit MCU
Integrated Driver MCU
Digital Audio/Video
CD SERVO
Audio Decode
Audio Effects Processing
Intelligent Audio
ASIC
Bipolar PWM Controller
Bipolar DC-DC
LDO
Volume and Sound Control Circuit
DC Drive Circuit
Darlington Circuit
Logic & Switch & Level Shift
Optional Amplifier
Comparator
Reference IC
Linear Regulator
Audio Circuit
LED Chip
GaN
GaAs
SQ9703T
AUTOMOTIVE H-BRIDGE GATE DRIVER
Description Main feature Product specification classification Relevant package outline drawing

    The SQ9703T is a H-Bridge gate driver that use four external N-channel MOSFETs targeted to drive a bidirectional brushed- DC motor.

    A PH/EN, independent H-Bridge, or PWM interface allows simple interfacing to controller circuits. An internal sense amplifier provides adjustable current    control. Integrated Charge-Pump allows for 100% duty cycle support and can be used to drive external reverse battery switch.

    Independent Half Bridge mode allows sharing of half bridges to control multiple DC motors sequentially in a cost-efficient way. The gate driver includes circuitry to regulate the winding current using fixed off-time PWM current chopping.

   The SQ9703T include Smart Gate Drive technology to remove the need for any external gate components (resistors and Zener diodes) while protecting the external FETs. The Smart Gate Drive architecture optimizes dead time to avoid any shoot-through conditions, provides flexibility in reducing electromagnetic interference (EMI) with programmable slew-rate control and protects against any gate-short conditions. Additionally, active and passive pulldowns are included to prevent any dv/dt gate turn on.


Main feature

  • AEC-Q100，Grade 1：-40°C~125°C

  • Single H-Bridge Gate Driver, Supports 100% PWM Duty Cycle

  • Operating Supply-Voltage Range: 5.5V~45V

  • Three Control-Interface Options: PH/EN, Independent H-Bridge, and PWM

  • Serial Interface for Configuration

  • Smart Gate Drive Architecture, Adjustable Slew-Rate Control

  • Supports 1.8V, 3.3V, and 5V logic inputs

  • Integrated a Current-Shunt Amplifier

  • Integrated PWM Current Regulation

  • Low-Power Sleep Mode

  • Protection Features

  • Undervoltage Lockout: 

  •              Supply Undervoltage (UVLO),  

  •              Charge-Pump Undervoltage (CPUV)

  • Overcurrent Protection (OCP)

  • Gate-Driver Fault (GDF)

  • Thermal Warning (OTW) and Thermal Shutdown (TSD)

  • Watchdog Timer (nWDFLT)

  • Fault-Condition Output (nFAULT)

  • Package, QFN-32-5x5x0.85-0.5


Ordering Information
Product Name Package form Marking Hazardous Substance Control Packing Type Remarks
SQ9703T QFN-32-5x5x0.85-0.5 SQ9703T Halpgen free Tray
SQ9703TTR QFN-32-5x5x0.85-0.5 SQ9703T Halpgen free Tape&Reel