LB1945H
LB1945H is PWM Current Control Type Stepping Motor Driver manufactured by SANYO.
Features
- PWM current control (external excitation)
- Load current digital selection (1- 2, W1- 2, and 2 phase excitation drives possible)
- Built-in upper/lower diode
- Simultaneous ON prevention function (feedthrough current prevention)
- Built-in thermal shutdown circuit
- Built-in noise canceler
Package Dimensions unit: mm 3233-HSOP28H
[LB1945H]
6.2 2.7
1 0.85 0.8 0.3
2.5max
Specifications
Absolute Maximum Ratings at Ta = 25°C
Parameter Maximum motor supply voltage Output peak current Output continuous current Logic supply voltage Logic input voltage range Emitter output voltage Allowable power dissipation Operating temperature Storage temperature Symbol VBB max I OPEAK I O max VCC max VIN max VE max Pd max Topr Tstg Conditions tw ≤ 20 µs Ratings
SANYO : HSOP28H
Ta = 25˚C, with specified substrate-
30 1.0 0.8 6.0
- 0.3 to VCC 1.0 1.9
- 20 to +90
- 55 to +150
Unit V A A V V V W °C °C
- Specified substrate: 114.3 × 76.1 × 1.6 mm3, glass epoxy
Allowable Operating Ranges at Ta = 25°C
Parameter Motor supply voltage Logic supply voltage Reference voltage Symbol VBB VCC VREF Conditions Ratings 10 to 28 4.75 to 5.25 1.5 to 5.0 Unit V V V
Any and all SANYO products described or contained herein do not have specifications that can handle applications that require extremely high levels of reliability, such as life-support systems, aircraft's control systems, or other applications whose failure can be reasonably expected to result in serious physical and/or material damage. Consult with your SANYO representative nearest you before using any SANYO products described or contained herein in such applications. SANYO assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other parameters) listed in products specifications of any and all SANYO products described or contained herein.
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