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NJM3777

Features: • Dual chopper driver• 900 mA continuous output current per channel• Digital filter on chip eliminates external filtering components• Package EMP24(Batwing)PinoutSpecifications Parameter Pin No. Symbol Min Max Unit Voltage ...

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SeekIC No. : 004434236 Detail

NJM3777: Features: • Dual chopper driver• 900 mA continuous output current per channel• Digital filter on chip eliminates external filtering components• Package EMP24(Batwing)PinoutSp...

NJM3777 Data Sheet

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Part Number:
NJM3777
Supply Ability:
5000

Price Break

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

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Product Details

Description



Features:

• Dual chopper driver
• 900 mA continuous output current per channel
• Digital filter on chip eliminates external filtering components
• Package EMP24(Batwing)


Pinout

Connection Diagram


Specifications

Parameter
Pin No.
Symbol
Min
Max
Unit
Voltage
 
 
 
 
 
Logic supply
13
VCC
0
7
V
Motor supply
5, 20
VMM
0
45
V
Logic inputs
10, 11, 14, 15
VI
-0.3
6
V
Analog inputs
8, 9, 16, 17
VA
-0.3
VCC
V
Current
 
 
 
 
 
Motor output current
2, 4, 21, 23
IM
-900
+900
mA
Logic inputs
10, 11, 14, 15
II
-10
-
mA
Analog inputs
8, 9, 16, 17
IA
-10
-
mA
Temperature
 
 
 
 
 
Operating junction temperature
 
TJ
-40
+150
°C
Storage temperature
 
TS
-55
+150
°C
Power Dissipation (Package Data)
 
 
 
 
 
Power dissipation at TGND = +25°C
 
PD
-
5
W
Power dissipation at TGND = +125°C
 
PD
-
2
W



Description

The NJM3777 is a switch-mode (chopper), constant-current driver with two channels: one for each winding of a two-phase stepper motor. The NJM3777 is equipped with a Disable input to simplify half-stepping operation. The NJM3777 contains a clock oscillator, which is common for both driver channels, a set of comparators and flip-flops implementing the switching control, and two output H-bridges, including recirculation diodes. Voltage supply requirements are + 5 V for logic and +10 to + 45 V for the motor. Maximum output current is 900mAper channel.




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