DRV8412 6A、2 チャネル、ブラシ付きまたは1 チャネル、バイポーラー・ステッピング・モーター・ドライバ(PWM 制御) | TIJ.co.jp

DRV8412 (供給中) 6A、2 チャネル、ブラシ付きまたは1 チャネル、バイポーラー・ステッピング・モーター・ドライバ(PWM 制御)

6A、2 チャネル、ブラシ付きまたは1 チャネル、バイポーラー・ステッピング・モーター・ドライバ(PWM 制御) - DRV8412
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概要

The DRV841x2 are high-performance, integrated dual full-bridge motor driver with an advanced protection system.

Because of the low RDS(on) of the H-Bridge MOSFETs and intelligent gate drive design, the efficiency of these motor drivers can be up to 97%. This high efficiency enables the use of smaller power supplies and heatsinks, and the devices are good candidates for energy-efficient applications.

The DRV841x2 requires two power supplies, one at 12 V for GVDD and VDD, and another up to 50 V for PVDD. The DRV841x2 can operate at up to 500-kHz switching frequency while still maintaining precise control and high efficiency. The devices also have an innovative protection system safeguarding the device against a wide range of fault conditions that could damage the system. These safeguards are short-circuit protection, overcurrent protection, undervoltage protection, and two-stage thermal protection. The DRV841x2 has a current-limiting circuit that prevents device shutdown during load transients such as motor start-up. A programmable overcurrent detector allows adjustable current limit and protection level to meet different motor requirements.

The DRV841x2 has unique independent supply and ground pins for each half-bridge. These pins make it possible to provide current measurement through external shunt resistor and support multiple motors with different power supply voltage requirements.

特長

  • High-Efficiency Power Stage (up to 97%) With Low RDS(on) MOSFETs (110 mΩ at TJ = 25°C)
  • Operating Supply Voltage up to 52 V
  • DRV8412 (Power Pad Down): up to 2 × 3-A Continuous Output Current (2 × 6-A Peak) in Dual Full-Bridge Mode or 6-A Continuous Current in Parallel Mode (12-A Peak)
  • DRV8432 (Power Pad Up): up to 2 × 7-A Continuous Output Current (2 × 12-A Peak) in Dual Full-Bridge Mode or 14-A Continuous Current in Parallel Mode (24-A Peak)
  • PWM Operating Frequency up to 500 kHz
  • Integrated Self-Protection Circuits Including Undervoltage, Overtemperature, Overload, and Short Circuit
  • Programmable Cycle-by-Cycle Current Limit Protection
  • Independent Supply and Ground Pins for Each Half Bridge
  • Intelligent Gate Drive and Cross Conduction Prevention
  • No External Snubber or Schottky Diode is Required

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機能一覧

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Part number オーダー・オプション Approx. price (US$) Control mode Vs (Min) (V) Number of full bridges Operating temperature range (C) Package Group Package size: mm2:W x L (PKG) Pin/package Rating RDS(ON) (HS + LS) (mOhms) Control interface Vs (Max) (V)
DRV8412 ご注文 3.35 | 1ku     Independent 1/2-H
PWM    
10.8     2     -40 to 85     HTSSOP | 44     44HTSSOP: 85 mm2: 6.1 x 14 (HTSSOP | 44)     44HTSSOP     Catalog     220     Hardware (GPIO)     50    
DRV8432 サンプルは利用できません。 5.50 | 1ku     Independent 1/2-H
PWM    
10.8     2     -40 to 85     HSSOP | 36     36HSSOP: 226 mm2: 14.2 x 15.9 (HSSOP | 36)     36HSSOP     Catalog     220     Hardware (GPIO)     50