(Hong Kong)
Product Summary
The LB1921 is a single-chip motor driver circuit that provides direct PWM drive output appropriate for driving the power brushless motors used in office automation equipment. The LB1921 also provides a variety of peripheral functions, including speed control and FG amplifier circuits, on chip. And it can be used in paper feed and drum motor drivers in FAX and PPC units.
Parametrics
LB1921 absolute maximum ratings: (1)Maximum supply voltage 1: 30 V; (2)Maximum supply voltage 2: 30 V; (3)Output current: 3.5 A; (4)Allowable power dissipation: 3 or 20 W; (5)Operating temperature: –20 to +80°C; (6)Storage temperature: –55 to +150°C.
Features
LB1921 features: (1)The LB1921 is an improved output current version of the LB1824; (2)Three-phase bipolar brushless motor driver; (3)Digital speed control circuit; (4)Thermal shutdown circuit; (5)Start/stop pin; (6)Lock detector output; (7)Crystal oscillator and divider circuits; (8)FG and error amplifiers; (9)Power supply current limiter.
Diagrams
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 LB1921 |
Other |
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Data Sheet |
Negotiable |
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LB1906CL |
Other |
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Data Sheet |
Negotiable |
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LB1909M |
Other |
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Data Sheet |
Negotiable |
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LB1909MC-AH |
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Data Sheet |
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LB1909MC-BH |
ON Semiconductor |
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LB1909MCGEVB |
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Data Sheet |
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LB1909M-TE-L-E |
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Motor / Motion / Ignition Controllers & Drivers 2.5-16V Stepping Motor Driver |
Data Sheet |
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