パッケージ情報
| パッケージ | ピン数 HTSSOP (PWP) | 28 |
| 動作温度範囲 (℃) -40 to 85 |
| パッケージ数量 | キャリア 2,000 | LARGE T&R |
DRV8843 の特徴
- Dual H-Bridge Motor Driver
- Single/Dual Brushed DC
- Stepper
- IN/IN Control Interface
- Optional Fixed Frequency Current Regulation
- Two Bit Current control Allows Up to
Four Current Levels
- Two Bit Current control Allows Up to
- Low MOSFET On-Resistance
- 2.5-A Maximum Drive Current at 24 V
and TA = 25°C - Combined 400 mΩ RDS(ON) of High-Side
and Low-Side at 24 V and TA = 25°C
- 2.5-A Maximum Drive Current at 24 V
- 8.2-V to 45-V Operating Supply Voltage Range
- Low Current Sleep Mode
- Built-In 3.3-V Reference Output
- Thermally Enhanced Surface Mount Package
- Protection Features
- Overcurrent Protection (OCP)
- Thermal Shutdown (TSD)
- Undervoltage Lockout (UVLO)
- Fault Condition Indication Pin (nFAULT)
DRV8843 に関する概要
The DRV8843 provides an integrated dual H-bridge motor driver solution for printers, scanners, and other automated equipment applications. The device can be used to drive one or two brushed DC motors, a bipolar stepper motor, or other loads. A simple PWM interface allows easy interfacing to controller circuits.
The output driver block consists of N-channel power MOSFETs configured as H-bridges. The DRV8843 an supply up to 2.5-A peak or 1.75-A RMS output current (with proper heat sinking at 24 V and TA = 25°C) per H-bridge.
A low-power sleep mode is provided which shuts down internal circuitry to achieve very low quiescent current draw. This sleep mode can be set using a dedicated nSLEEP pin.
Internal protection features are provided for overtemperature, overcurrent, and undervoltage. Fault conditions are indicated by a nFAULT pin.