UC3717AQTR
ObsoleteIC HALF BRIDGE DRIVER 1A 20PLCC
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UC3717AQTR
ObsoleteIC HALF BRIDGE DRIVER 1A 20PLCC
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Technical Specifications
Parameters and characteristics for this part
| Specification | UC3717AQTR |
|---|---|
| Applications | General Purpose, Stepper Motors |
| Current - Output / Channel [custom] | 1 A |
| Fault Protection | Over Temperature |
| Features | Bootstrap Circuit |
| Interface | Logic |
| Load Type | Inductive |
| Mounting Type | Surface Mount |
| Operating Temperature [Max] | 150 °C |
| Operating Temperature [Min] | 0 °C |
| Output Configuration | Half Bridge (2) |
| Package / Case | 20-LCC (J-Lead) |
| Supplier Device Package | 20-PLCC (9x9) |
| Technology | Bipolar |
| Voltage - Load [Max] | 46 V |
| Voltage - Load [Min] | 10 V |
| Voltage - Supply [Max] | 5.25 V |
| Voltage - Supply [Min] | 4.75 V |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
Description
General part information
UC3717A Series
The UC3717A is an improved version of the UC3717, used to switch drive the current in one winding of a bipolar stepper motor. The UC3717A has been modified to supply higher winding current, more reliable thermal protection, and improved efficiency by providing integrated bootstrap circuitry to lower recirculation saturation voltages. The diagram shown below presents the building blocks of the UC3717A. Included are an LS-TTL compatible logic input, a current sensor, a monostable, a thermal shutdown network, and an H-bridge output stage. The output stage features built-in fast recovery commutating diodes and integrated bootstrap pull up. Two UC3717As and a few external components form a complete control and drive unit for LS-TTL or micro-processor controlled stepper motor systems.
The UC3717A is characterized for operation over the temperature range of 0°C to +70°C.
The UC3717A is an improved version of the UC3717, used to switch drive the current in one winding of a bipolar stepper motor. The UC3717A has been modified to supply higher winding current, more reliable thermal protection, and improved efficiency by providing integrated bootstrap circuitry to lower recirculation saturation voltages. The diagram shown below presents the building blocks of the UC3717A. Included are an LS-TTL compatible logic input, a current sensor, a monostable, a thermal shutdown network, and an H-bridge output stage. The output stage features built-in fast recovery commutating diodes and integrated bootstrap pull up. Two UC3717As and a few external components form a complete control and drive unit for LS-TTL or micro-processor controlled stepper motor systems.
Documents
Technical documentation and resources