TEA3717 - ST Microelectronics

TEA3717 STEPPER MOTOR DRIVER

The TEA3717 is a bipolar monolithic integrated circuit intended to control and drive the current in one winding of a bipolar stepper motor. The circuit consists of an LS-TTL compatible logic input, a current sensor, a monostable and an outputstage with builtin protection diodes. Two TEA3717 and a few external components form a complete control and drive unit.

Features

age (pins 14, 3) Logic Supply Voltage (pin 6) Input Voltage Logic Inputs Analog Inputs Reference Input Input Current Logic Inputs Analog Inputs Output Current Junction Temperature Storage Temperature Range Operating Ambiant Temperature Range Value 45 7
  – 0.5 to 6 VCC 15 mA
  – 10
  – 10 ±1 + 150
  – 55 to + 150 0 to + 70 Unit V V V A °C °C °C THERMAL DATA Symbol Rth (j-c) Rth (j-a) Parameter Maximum Junction-pins Thermal Resistance Maximum Junction-ambient Thermal Resistance Value 11 45
* Unit °C/W °C/W
* Soldered on a 35 mm thick 20 cm3 PC board copper area RECOMMENDED OPERATING CONDITIONS Symbo.