UC3770B

Name: UC3770B
Brand: TI
SKU: UC3770B
Price: 4.816 USD

現行

高性能步進馬達驅動電路

立即訂購

產品規格表

document-pdfAcrobat High Performance Stepper Motor Drive Circuit datasheet (Rev. A) (英文)

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UC3770B

現行

產品規格表

立即訂購

產品詳細資料

Vs ABS (max) (V)

50

Peak output current (A)

1.5

Rating

Catalog

Operating temperature range (°C)

0 to 70

Vs ABS (max) (V)

50

Peak output current (A)

1.5

Rating

Catalog

Operating temperature range (°C)

0 to 70

PDIP (N)

16

181.42 mm² 19.3 x 9.4

Full-Step, Half-Step and Micro-Step Capability
Bipolar Output Current up to 2A
Wide Range of Motor Supply Voltage: 10\x9650V
Low Saturation Voltage
Wide Range of Current Control: 5mA\x962A
Current Levels Selected in Steps or Varied Continuously
Thermal Protection and Soft Intervention

Full-Step, Half-Step and Micro-Step Capability
Bipolar Output Current up to 2A
Wide Range of Motor Supply Voltage: 10\x9650V
Low Saturation Voltage
Wide Range of Current Control: 5mA\x962A
Current Levels Selected in Steps or Varied Continuously
Thermal Protection and Soft Intervention

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.

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.

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