ZHCSR67 July 2020 DRV8353M
PRODUCTION DATA
- 1 特性
- 2 应用
- 3 说明
- 4 Revision History
- 5 Device Comparison Table
- 6 Pin Configuration and Functions
- 7 Absolute Maximum Ratings
- 8 ESD Ratings
- 9 Recommended Operating Conditions
- 10Thermal Information
- 11Electrical Characteristics
- 12SPI Timing Requirements
-
13Detailed Description
- 13.1 Overview
- 13.2 Functional Block Diagram
- 13.3
Feature Description
- 13.3.1 Three Phase Smart Gate Drivers
- 13.3.2 DVDD Linear Voltage Regulator
- 13.3.3 Pin Diagrams
- 13.3.4 Low-Side Current-Shunt Amplifiers
- 13.3.5
Gate Driver Protective Circuits
- 13.3.5.1 VM Supply and VDRAIN Undervoltage Lockout (UVLO)
- 13.3.5.2 VCP Charge-Pump and VGLS Regulator Undervoltage Lockout (GDUV)
- 13.3.5.3 MOSFET VDS Overcurrent Protection (VDS_OCP)
- 13.3.5.4 VSENSE Overcurrent Protection (SEN_OCP)
- 13.3.5.5 Gate Driver Fault (GDF)
- 13.3.5.6 Overcurrent Soft Shutdown (OCP Soft)
- 13.3.5.7 Thermal Warning (OTW)
- 13.3.5.8 Thermal Shutdown (OTSD)
- 13.3.5.9 Fault Response Table
- 13.4 Device Functional Modes
- 13.5 Programming
- 13.6
Register Maps
- 13.6.1 Status Registers
- 13.6.2
Control Registers
- 13.6.2.1 Driver Control Register (address = 0x02h)
- 13.6.2.2 Gate Drive HS Register (address = 0x03h)
- 13.6.2.3 Gate Drive LS Register (address = 0x04h)
- 13.6.2.4 OCP Control Register (address = 0x05h)
- 13.6.2.5 CSA Control Register (address = 0x06h)
- 13.6.2.6 Driver Configuration Register (address = 0x07h)
-
14Application and Implementation
- 14.1 Application Information
- 14.2
Typical Application
- 14.2.1
Primary Application
- 14.2.1.1 Design Requirements
- 14.2.1.2 Detailed Design Procedure
- 14.2.1.3 Application Curves
- 14.2.1
Primary Application
- 15Power Supply Recommendations
- 16Layout
- 17Device and Documentation Support
- 18Mechanical, Packaging, and Orderable Information
14.2.1.2.4.1 Sense-Amplifier Example
In this system example, the value of VREF voltage is 3.3 V with a sense current from –40 to +40 A. The linear range of the SOx output is 0.25 V to VVREF – 0.25 V (from the VLINEAR specification). The differential range of the sense amplifier input is –0.3 to +0.3 V (VDIFF).
Therefore, the gain setting must be selected as 20 V/V or 40 V/V and the value of the sense resistor must be less than 2.5 mΩ to meet the power requirement for the sense resistor. For this example, the gain setting was selected as 20 V/V. The value of the resistor and worst case current can be verified that R < 2.5 mΩ and Imax = 40 A does not violate the differential range specification of the sense amplifier input (VSPxD).