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产品详情

Number of full bridges 1 Vs (min) (V) 2.5 Vs ABS (max) (V) 20 Rating Military Operating temperature range (°C) -55 to 125
Number of full bridges 1 Vs (min) (V) 2.5 Vs ABS (max) (V) 20 Rating Military Operating temperature range (°C) -55 to 125
CDIP (J) 18 159.852 mm² 23.1 x 6.92 LCCC (FK) 20 79.0321 mm² 8.89 x 8.89
  • Single or Dual Supply Operation
  • ±2.5V to ±20V Input Supply Range
  • ±5% Initial Oscillator Accuracy; ±10% Over Temperature
  • Pulse-by-Pulse Current Limiting
  • Under-Voltage Lockout
  • Shutdown Input with Temperature Compensated 2.5V Threshold
  • Uncommitted PWM Comparators for Design Flexibility
  • Dual 100mA, Source/Sink Output Drivers
  • Single or Dual Supply Operation
  • ±2.5V to ±20V Input Supply Range
  • ±5% Initial Oscillator Accuracy; ±10% Over Temperature
  • Pulse-by-Pulse Current Limiting
  • Under-Voltage Lockout
  • Shutdown Input with Temperature Compensated 2.5V Threshold
  • Uncommitted PWM Comparators for Design Flexibility
  • Dual 100mA, Source/Sink Output Drivers

The UC1637 is a pulse width modulator circuit intended to be used for a variety of PWM motor drive and amplifier applications requiring either uni-directional or bi-directional drive circuits. When used to replace conventional drivers, this circuit can increase efficiency and reduce component costs for many applications. All necessary circuitry is included to generate an analog error signal and modulate two bi-directional pulse train outputs in proportion to the error signal magnitude and polarity.

This monolithic device contains a sawtooth oscillator, error amplifier, and two PWM comparators with ±100mA output stages as standard features. Protection circuitry includes under-voltage lockout, pulse-by-pulse current limiting, and a shutdown port with a 2.5V temperature compensated threshold.

The UC1637 is characterized for operation over the full military temperature range of -55°C to +125°C, while the UC2637 and UC3637 are characterized for -25°C to +85°C and 0°C to +70°C, respectively.

The UC1637 is a pulse width modulator circuit intended to be used for a variety of PWM motor drive and amplifier applications requiring either uni-directional or bi-directional drive circuits. When used to replace conventional drivers, this circuit can increase efficiency and reduce component costs for many applications. All necessary circuitry is included to generate an analog error signal and modulate two bi-directional pulse train outputs in proportion to the error signal magnitude and polarity.

This monolithic device contains a sawtooth oscillator, error amplifier, and two PWM comparators with ±100mA output stages as standard features. Protection circuitry includes under-voltage lockout, pulse-by-pulse current limiting, and a shutdown port with a 2.5V temperature compensated threshold.

The UC1637 is characterized for operation over the full military temperature range of -55°C to +125°C, while the UC2637 and UC3637 are characterized for -25°C to +85°C and 0°C to +70°C, respectively.

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类型 标题 下载最新的英语版本 日期
* 数据表 Switched Mode Controller for DC Motor Drive 数据表 1999年 9月 5日
* SMD UC1637 SMD 5962-89957 2016年 6月 21日
白皮书 How smart tune regulates current in stepper motors (Rev. A) 2019年 3月 19日
应用手册 U-120 A Simplified Approach to DC Motor Modeling for Dynamic Stability Analysis 1999年 9月 5日

设计和开发

如需其他信息或资源,请点击以下任一标题进入详情页面查看(如有)。

封装 引脚 下载
CDIP (J) 18 查看选项
LCCC (FK) 20 查看选项

订购和质量

包含信息:
  • RoHS
  • REACH
  • 器件标识
  • 引脚镀层/焊球材料
  • MSL 等级/回流焊峰值温度
  • MTBF/时基故障估算
  • 材料成分
  • 鉴定摘要
  • 持续可靠性监测
包含信息:
  • 制造厂地点
  • 封装厂地点

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