支援軟體
DRV8702-Q1
- AEC-Q100 Qualified for Automotive Applications
- Device Temperature Grade 1: –40°C to +125°C Ambient Operating Temperature
- Functional Safety-Capable
- Documentation available to aid DRV8702-Q1 DRV8703-Q1 functional safety system design
- Single H-Bridge Gate Driver
- Drives Four External N-Channel MOSFETs
- Supports 100% PWM Duty Cycle
- 5.5 to 45-V Operating Supply-Voltage Range
- Three Control-Interface Options
- PH/EN, Independent H-Bridge, and PWM
- Serial Interface for Configuration (DRV8703-Q1)
- Smart Gate Drive Architecture
- Adjustable Slew-Rate Control
- Independent Control of Each H-Bridge
- Supports 1.8-V, 3.3-V, and 5-V logic inputs
- Current-Shunt Amplifier
- Integrated PWM Current Regulation
- Low-Power Sleep Mode
- Protection Features
- Supply Undervoltage Lockout (UVLO)
- Charge-Pump Undervoltage (CPUV) Lockout
- Overcurrent Protection (OCP)
- Gate-Driver Fault (GDF)
- Thermal Shutdown (TSD)
- Watchdog Timer (DRV8703-Q1)
- Fault-Condition Output (nFAULT)
The DRV870x-Q1 devices are small single H-bridge gate drivers 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 DRV870x-Q1 devices 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.
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開發板
DRV8702-Q1EVM — DRV8702-Q1 車用有刷 DC 馬達閘極驅動器評估模組
The DRV8702-Q1EVM (evaluation module) serves as an evaluation kit to demonstrade TI's DRV8702-Q1 H-bridge gate driver. An MSP430G2553 is used to control the duty cycle and direction of the motor, while also monitoring the motor current reported from the DRV8702-Q1. The power stage is created using (...)
使用指南: PDF
參考設計
TIDA-01530 — 汽車擋風玻璃雨刷驅動參考設計
This reference design drives a two-speed front windshield wiper, one or two rear wipers, and the pump, which sprays the front and back windshields in an automobile. In addition to controlling the brushed motors for the wipers and pump, this design includes inputs for wiper parking signals as well (...)
| 封裝 | 引腳 | 下載 |
|---|---|---|
| VQFN (RHB) | 32 | 檢視選項 |
訂購與品質
內含資訊：
- RoHS
- REACH
- 產品標記
- 鉛塗層/球物料
- MSL 等級/回焊峰值
- MTBF/FIT 估算值
- 材料內容
- 資格摘要
- 進行中可靠性監測
內含資訊：
- 晶圓廠位置
- 組裝地點
建議產品可能具有與此 TI 產品相關的參數、評估模組或參考設計。