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Discrete Divice
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Planar LVMOS Normal Trench LVMOS Split Gate Trench LVMOS Automotive MOSFET
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Planar HVMOS Multi-Epi DPMOS Trench DPMOS
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Planar IGBT Trench IGBT SiC Hybrid IGBT RC IGBT
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SSR Flyback Controller IC
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Non-isolated BUCK/BUCK-BOOST IC
PFC IC
Fast Charging IC
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AC-DC Fast Charging Protocol IC
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PoE IC
LED Lighting Driver
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Automotive LED Driver
Gate Driver IC
Three-phase Half Bridge Driver
Single Half-bridge Driver
PFC IGBT Gate Driver
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Six- Axis Inertial Sensor
Proximity Detection and Digital Ambient Light Sensor
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Silicon Microphone Sensor
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ASIC
Bipolar PWM Controller
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Volume and Sound Control Circuit
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Operational Amplifier Circuit
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Reference IC
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GaN-Automotive lighting GaN-Display screen GaN-General lighting GaN-Landscape lighting
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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
SDIP-26
DIP-27
DIP-29
SOP-30
SOP-37
DIP-T46A
IGBT Module
Automobile module
Industrial 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
Automotive LED Driver
Gate Driver IC
Three-phase Half Bridge Driver
Single 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
Operational Amplifier Circuit
Comparator
Reference IC
Linear Regulator
Audio Circuit
Interface ICs
LED Chip
GaN
GaN-Automotive lighting GaN-Display screen GaN-General lighting GaN-Landscape lighting
GaAs
GaAs-Agriculture & horticulture lighting GaAs-Automotive lighting GaAs-Display screen GaAs-Infrared GaAs-Landscape lighting
Smart Power Switches
Low-side Smart Power Switches
High-side Smart Power Switches
Low-Voltage Motor Driver
Automotive Low-Voltage Motor Driver
Consumer & Industrial Low-Voltage Motor Driver
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
SDIP-26
DIP-27
DIP-29
SOP-30
SOP-37
DIP-T46A
IGBT Module
Automobile module
Industrial 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
Automotive LED Driver
Gate Driver IC
Three-phase Half Bridge Driver
Single 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
Operational Amplifier Circuit
Comparator
Reference IC
Linear Regulator
Audio Circuit
Interface ICs
LED Chip
GaN
GaN-Automotive lighting GaN-Display screen GaN-General lighting GaN-Landscape lighting
GaAs
GaAs-Agriculture & horticulture lighting GaAs-Automotive lighting GaAs-Display screen GaAs-Infrared GaAs-Landscape lighting
Smart Power Switches
Low-side Smart Power Switches
High-side Smart Power Switches
Low-Voltage Motor Driver
Automotive Low-Voltage Motor Driver
Consumer & Industrial Low-Voltage Motor Driver
SD3934
FAST CHARGE AND DISCHARGE CONTROL IC FOR TRAVEL CHARGES
Description Main feature Product specification classification Technical documentation Relevant package outline drawing

      SD3934 is a highly integrated protocol and power control chip applied to the Multi-port Travel Charger. It integrates 4 independent Type-C ports and is compatible with fast-charging protocols such as PD3.2 AVS, PPS, QC4.0+, FCP, SCP, AFC, BC1.2, APPLE2.4 and UFCS. 

      SD3934 integrates internal bus voltage discharge resistors, which cooperate with the FB control unit to realize various bus voltage outputs.

      SD3934 integrates high-performance high-voltage LDO, NMOS isolation gate driver and other modules. It features comprehensive functions and minimal external components, greatly simplifying the BOM.


Main feature

  • Operating voltage range:4.5V~36V

  • Protocols support: PD3.2 AVS, PPS, QC4.0+, FCP, SCP, AFC, BC1.2, APPLE2.4, UFCS

  • 4 Type-C channels, with independent fast charging protocols for each channel

  • 4-channel load switch control

  • Internal bus voltage discharge resistors

  • I2C/UART Communication

  • LED indication and digital tube display

  • High-precision device attach and detach detection


Ordering Information
Product Name Package form Marking Hazardous Substance Control Packing Type Remarks
SD3934 QFN-52-6X6X0.75-0.4 SD3934 Halogen free Tray
SD3934TR QFN-52-6X6X0.75-0.4 SD3934 Halogen free Tape & Reel
Documents
title Types of Size (KB) date Download the latest English version
SD3934 0 2026-10-27 SD3934 Brief Datasheet