(Hong Kong)
Product Summary
The UDN2953B is a full-bridge PWM motor driver. It is designed for bidirectional control of do or stepper motors with continuous output currents to 2 A and peak start-up currents as high as 3.5 A. For pulse-width modulated (chopped-mode) operation, the output current of the UDN2953B is determined by the user’s selection of a reference voltage and sensing resistor while the OFF pulse duration is set by an external RC timing network. PWM operation is characterized by maximum efficiency and low power-dissipation levels.
Parametrics
UDN2953B absolute maximum ratings: (1)motor supply voltage: 50 V; (2)output current, IOUT: ±3.5 A; (3)flyback diode voltage: VBB; (4)minimum clamp diode voltage: ground; (5)logic supply voltage: 7.0 V; (6)logic input voltage: VBB; (7)sense voltage: 1.5 V; (8)reference voltage: 15 V; (9)operating temperature range: -20 to +85 ℃; (10)storage temperature range: -55 to +150 ℃.
Features
UDN2953B features: (1)50 V output voltage rating; (2)2A continuous output rating; (3)crossover current protection; (4)BRAKE, ENABLE and current-limite functions.
Diagrams
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 UDN2953B |
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UDN2540B |
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UDN2559B |
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IC DRIVER QUAD PROTECTED 16DIP |
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UDN2559BT |
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IC DRIVER QUAD PROTECTED 16DIP |
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UDN2559B-T |
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IC DRIVER QUAD PROTECTED 16DIP |
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UDN2559EB |
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IC DRIVER QUAD PROTECTED 28PLCC |
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UDN2559EBTR |
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IC DRIVER QUAD PROTECTED 28PLCC |
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