ZHCSJU7 May 2019 DRV8340-Q1
PRODUCTION DATA.
- 1 特性
- 2 應用
- 3 說明
- 4 修訂歷史記錄
- 5 Device Comparison Table
- 6 Pin Configuration and Functions
- 7 Specifications
-
8 Detailed Description
- 8.1 Overview
- 8.2 Functional Block Diagram
- 8.3
Feature Description
- 8.3.1
Three Phase Smart Gate Drivers
- 8.3.1.1
PWM Control Modes
- 8.3.1.1.1 6x PWM Mode (PWM_MODE = 000b or MODE Pin Tied to AGND)
- 8.3.1.1.2 3x PWM Mode (PWM_MODE = 001b or MODE Pin = 18 kΩ to AGND)
- 8.3.1.1.3 1x PWM Mode (PWM_MODE = 010b or MODE Pin = 75 kΩ to AGND)
- 8.3.1.1.4 Independent Half-Bridge PWM Mode (PWM_MODE = 011b or MODE Pin is > 1.5 MΩ to AGND or Hi-Z)
- 8.3.1.1.5 Phases A and B are Independent Half-Bridges, Phase C is Independent FET (MODE = 100b)
- 8.3.1.1.6 Phases B and C are Independent Half-Bridges, Phase A is Independent FET (MODE = 101b or MODE Pin is 75 kΩ to DVDD)
- 8.3.1.1.7 Phases A is Independent Half-Bridge, Phases B and C are Independent FET (MODE = 110b or MODE Pin is 18 kΩ to DVDD)
- 8.3.1.1.8 Independent MOSFET Drive Mode (PWM_MODE = 111b or MODE Pin = 0.47 kΩ to DVDD)
- 8.3.1.2 Device Interface Modes
- 8.3.1.3 Gate Driver Voltage Supplies
- 8.3.1.4 Smart Gate Drive Architecture
- 8.3.1.1
PWM Control Modes
- 8.3.2 DVDD Linear Voltage Regulator
- 8.3.3 Pin Diagrams
- 8.3.4
Gate Driver Protective Circuits
- 8.3.4.1 VM Supply Undervoltage Lockout (UVLO)
- 8.3.4.2 VCP Charge Pump Undervoltage Lockout (CPUV)
- 8.3.4.3 MOSFET VDS Overcurrent Protection (VDS_OCP)
- 8.3.4.4 Gate Driver Fault (GDF)
- 8.3.4.5 Thermal Warning (OTW)
- 8.3.4.6 Thermal Shutdown (OTSD)
- 8.3.4.7 Open Load Detection (OLD)
- 8.3.4.8 Offline Shorts Diagnostics
- 8.3.4.9 Reverse Supply Protection
- 8.3.1
Three Phase Smart Gate Drivers
- 8.4 Device Functional Modes
- 8.5 Programming
- 8.6
Register Maps
- 8.6.1 Status Registers
- 8.6.2
Control Registers
- 8.6.2.1 IC1 Control Register (Address = 0x04) [reset = 0x00]
- 8.6.2.2 IC2 Control Register (address = 0x05) [reset = 0x40]
- 8.6.2.3 IC3 Control Register (Address = 0x06) [reset = 0xFF]
- 8.6.2.4 IC4 Control Register (Address = 0x07) [reset = 0xFF]
- 8.6.2.5 IC5 Control Register (Address = 0x08) [reset = 0xFF]
- 8.6.2.6 IC6 Control Register (Address = 0x09) [reset = 0x99]
- 8.6.2.7 IC7 Control Register (Address = 0x0A) [reset = 0x99]
- 8.6.2.8 IC8 Control Register (Address = 0x0B) [reset = 0x99]
- 8.6.2.9 IC9 Control Register (Address = 0x0C) [reset = 0x2F]
- 8.6.2.10 IC10 Control Register (Address = 0x0D) [reset = 0x61]
- 8.6.2.11 IC11 Control Register (Address = 0x0E) [reset = 0x00]
- 8.6.2.12 IC12 Control Register (Address = 0x0F) [reset = 0x2A]
- 8.6.2.13 IC13 Control Register (Address = 0x10) [reset = 0x7F]
- 8.6.2.14 IC14 Control Register (Address = 0x10) [reset = 0x00]
- 9 Application and Implementation
- 10Power Supply Recommendations
- 11Layout
- 12器件和文檔支持
- 13機械、封裝和可訂購信息
8.3.1.2.2 Hardware Interface
Hardware interface devices convert the four SPI pins into four resistor-configurable inputs which are IDRIVE, MODE, and VDS. This conversion lets the application designer configure the most common device settings by tying the pin logic high or logic low, or with a simple pullup or pulldown resistor. This removes the requirement for an SPI bus from the external controller. General fault information can still be obtained through the nFAULT pin.
- The IDRIVE pin configures the gate drive current strength.
- The MODE pin configures the PWM control mode.
- The VDS pin configures the voltage threshold of the VDS overcurrent monitors.
For more information on the hardware interface, see the Pin Diagrams section.
Figure 16. SPI 
Figure 17. Hardware Interface