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PBL3770A

Features: • Half-step and full-step operation.• Switched mode bipolar constant current drive• Wide range of current control 5 -1800 mA.• Wide voltage range 10 - 45 V.• Designed for unstabilized motor supply voltage.• Current levels can be selected in steps or va...

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SeekIC No. : 004455541 Detail

PBL3770A: Features: • Half-step and full-step operation.• Switched mode bipolar constant current drive• Wide range of current control 5 -1800 mA.• Wide voltage range 10 - 45 V.• ...

PBL3770A Data Sheet

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Part Number:
PBL3770A
Supply Ability:
5000

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  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Product Details

Description



Features:

• Half-step and full-step operation.
• Switched mode bipolar constant current drive
• Wide range of current control 5 -1800 mA.
• Wide voltage range 10 - 45 V.
• Designed for unstabilized motor supply voltage.
• Current levels can be selected in steps or varied continuously.
• Thermal overload protection.


Pinout

Connection Diagram


Specifications

Parameter
 Pin no. [DIL package]
Symbol
Min.
Max.
Unit
Voltage
Logic supply
6
VCC
0
7
V
Motor supply
3, 14
VMM
0
45
V
Logic inputs
7,8,9
VI
-0.3
6
V
Comparator input
10
VC
-0.3
VCC
V
Reference input
11
VR
-0.3
15
V
Current
Motor output current
1, 15
IM
-1800
+1800
mA
Logic inputs
7,8,9
II
-10
mA
Analog inputs
10,11
IA
-10
mA
Temperature
Operating junction temperature
TJ
-40
+150
Storage temperature
Ts
-55
+150




Description

PBL 3770A is a bipolar monolithic circuit intended to control and drive the current in one winding of a stepper motor. It is a high power version of PBL 3717 and special care has been taken to optimize the power handling capability without suffering in reliability.

The circuit PBL3770A consists of a LS-TTL compatible logic input stage, a current sensor, a monostable multivibrator and a high power H-bridge output stage. The circuit is pin-compatible with the PBL 3717 industry-standard driver.

Two PBL 3770A and a small number of external components form a complete control and drive unit for LS-TTL or microprocessor-controlled stepper motor systems.




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