二极管

USB

三极管

可控硅(晶闸管)

场效应管(MOSFET)

集成电路

连接器

LED系列产品

电感器

继电器

传感器

电容器

电阻器

保护器件

光电器件

压电晶体

开关原件

功率模块

特性

• Single-Phase Full-Wave Driving Pre-Driver
  • Low saturation drive using external PNP-NMOS
    enables high efficiency low power consumption drive
• Variable Speed Control Possible With External PWM Input
  • Separately excited upper direct PWM (f = 30 kHz)
    control method ensures quiet speed control
• Current Limiter Circuit Incorporated
  • Chopper type current limiting made at startup and
    during lock
• Reactive Current Cut Circuit Incorporated
  • Reactive current before phase change is cut to
    enable silent and low-consumption drive
• Minimum-Speed Setting Pin
  • Minimum speed can be set with external resistor
• Soft-Start Setting Pin
• Lock Protection and Automatic Reset Circuits Incorporated
• Rotation Speed Detection (FG) and Lock Detection (RD) Output
• Thermal Shutdown Circuit Incorporated

DESCRIPTION/ORDERING INFORMATION

The TMP815 is a single-phase bipolar driving motor pre-driver with a variable-speed function that is compatible with an external PWM signal. With few external parts, a highly efficient and quiet variable-drive fan motor with low power consumption can be achieved.

This device is best suited for driving of the servers requiring large air flow and large current or the fan motors of consumer appliances.