UC3770BN
ActiveHIGH PERFORMANCE STEPPER MOTOR DRIVE CIRCUIT
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UC3770BN
ActiveHIGH PERFORMANCE STEPPER MOTOR DRIVE CIRCUIT
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Technical Specifications
Parameters and characteristics for this part
| Specification | UC3770BN |
|---|---|
| Applications | General Purpose, Stepper Motors |
| Current - Output / Channel [custom] | 2 A |
| Fault Protection | Over Temperature |
| Interface | Logic |
| Load Type | Inductive |
| Mounting Type | Through Hole |
| Operating Temperature [Max] | 150 °C |
| Operating Temperature [Min] | 0 °C |
| Output Configuration | Half Bridge (2) |
| Package / Case | 0.3 in |
| Package / Case | 16-DIP |
| Package / Case | 7.62 mm |
| Supplier Device Package | 16-PDIP |
| Technology | Bipolar |
| Voltage - Load [Max] | 45 V |
| Voltage - Load [Min] | 10 V |
| Voltage - Supply [Max] | 5.3 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 | $ | |
|---|---|---|---|---|
| Digikey | Tube | 1 | $ 11.58 | |
| 10 | $ 10.46 | |||
| 25 | $ 9.97 | |||
| 100 | $ 8.66 | |||
| 250 | $ 8.27 | |||
| 500 | $ 7.54 | |||
| 1000 | $ 6.57 | |||
| Texas Instruments | TUBE | 1 | $ 10.19 | |
| 100 | $ 8.31 | |||
| 250 | $ 6.53 | |||
| 1000 | $ 5.54 | |||
Description
General part information
UC3770B Series
The UC3770A and UC3770B are high-performance full bridge drivers that offer higher current and lower saturation voltage than the UC3717 and the UC3770. Included in these devices are LS-TTL compatible logic inputs, current sense, monostable, thermal shutdown, and a power H-bridge output stage. Two UC3770As or UC3770Bs and a few external components form a complete micro-processor-controllable stepper motor power system.
Unlike the UC3717, the UC3770A and the UC3770B require external high-side clamp diodes. The UC3770A and UC3770B are identical in all regards except for the current sense thresholds. Thresholds for the UC3770A are identical to those of the older UC3717 permitting drop-in replacement in applications where high-side diodes are not required. Thresholds for the UC3770B are tailored for half stepping applications where 50%, 71%, and 100% current levels are desirable.
The UC3770A and UC3770B are specified for operation from 0°C to 70°C ambient.
Documents
Technical documentation and resources