ChongMing Group (HK) Int'l Co., Ltd
CHONGMING GROUP (HK) INT'L CO., LTD.
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TEA3718
TEA3718S
STEPPER MOTOR DRIVER
• HALF-STEP AND FULL-STEP MODE
• BIPOLAR DRIVE OF STEPPER MOTOR FOR MAXIMUM MOTOR PERFORMANCE
• BUILT-IN PROTECTION DIODES
• WIDE RANGE OF CURRENT CONTROL 5 TO 1500 mA
• WIDE VOLTAGE RANGE 10 TO 50 V
• DESIGNED FOR UNSTABILIZED MOTOR SUPPLY VOLTAGE
• CURRENT LEVELS CAN BE SELECTED IN STEPS OR VARIED CONTINUOUSLY
• THERMAL OVERLOAD PROTECTION
• ALARM OUTPUT OR PRE-ALARM OUTPUT
DESCRIPTION
TheTEA3718andTEA3718Sare bipolarmonolithic integrated circuits intended to control and drive the current in one winding of a bipolar stepper motor. The circuits consist of an LS-TTL compatible logic input, a current sensor, a monostable and anoutput stage with built-in protection diodes. Two TEA3718 or TEA3718S and a few external components form a complete control and drive unit for LS-TTL or microprocessor-controlled stepper motor systems.
PIN CONNECTIONS (top views)
ABSOLUTE MAXIMUM RATINGS
| Symbol | Parameters | Value | Unit |
|---|---|---|---|
|
VSS VS |
Supply Voltage |
7 50 |
V |
| VI |
Input Voltage: Logic Inputs Analog Inputs Reference Input |
6 VSS 15 |
V |
| II |
Input Current Logic Inputs Analog Inputs |
-10 -10 |
mA |
| IO | Output Current | ±1.5 | A |
| TJ | Junction Temperature | +150 | °C |
| Top | Operating Ambient Temperature Range | 0 to 70 | °C |
| Tstg | Storage Temperature Range | -55 to +150 | °C |
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