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MFG:JRC Package Cooled:DIP
Part Number: NJM3774D2
MFG: JRC
Package Cooled: DIP
Description: The NJM3774 is a switch-mode (chopper), constant current driver with two channels: ...
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NJM3774D2
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DataSheet
General Description
NJM3774D2 General Description
The NJM3774 is a switch-mode (chopper), constant current driver with two channels: one for each winding of a two-phase stepper motor. The NJM3774 is equipped with a TTL level compatible Disable input to simplify half-stepping operation. The circuit is well suited for microstepping applications together with the matching dual DAC NJU39610. In full/half stepping applications, the NJM3517 can be used as a phase generator (translator) to derive the necessary signals for the NJM3774. The NJM3774 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. Voltage supply requirements are +5 V for logic and +10 to +45 V for the motor. Maximum output current is 1000mA per channel.
NJM3774D2 Maximum Ratings
| Parameter | Pin no.[DIP package] | Symbol | Min | Max | Unit |
| Voltage | |||||
| Logic supply | 22 | VCC | 0 | 7 | V |
| Motor supply | 9, 14 | VMM | 0 | 45 | V |
| Logic inputs | 4, 7, 16, 19 | VI | -0.3 | 6 | V |
| Comparator inputs | 2, 21 | VC | -0.3 | VCC | V |
| Reference inputs | 3, 20 | VR | -0.3 | 7.5 | V |
| Current | |||||
| Motor output current | 8, 11, 12, 15 | IM | -1200 | +1200 | mA |
| Logic inputs | 4, 7, 16, 19 | II | -10 | - | mA |
| Analog inputs | 2, 3, 20, 21 | IA | -10 | - | mA |
| Temperature | |||||
| Operating Junction temperature | Tj | -40 | +150 | °C | |
| Storage temperature | Tstg | -55 | +150 | °C | |
| Power Dissipation (Package Data) | |||||
| Power dissipation at TGND = +25°C, DIP and PLCC package | PD | - | 5 | W | |
| Power dissipation at TGND = +125°C, DIP package | PD | - | 2.2 | W | |
| Power dissipation at TGND = +125°C, PLCC package | PD | - | 2.6 | W |
NJM3774D2 Features
• Dual chopper driver
• 1000 mA continuous output current per channel
• Specially matched to the Dual DAC NJU39610
• Packages DIP22 / PLCC28
• 1000 mA continuous output current per channel
• Specially matched to the Dual DAC NJU39610
• Packages DIP22 / PLCC28
NJM3774D2 Connection Diagram
NJM3774D2
PDF/DataSheet Download
- Datasheet: NJM3774D2
- File Size: 165706 KB
- Manufacturer: NJRC [New Japan Radio]
- Click here to Download
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The NJM3774 is a switch-mode (chopper), constantcurrent driver with two channels: one for each winding of a two-phase stepper motor. The NJM3774 is equipped with a TTL level compatible Disable input to simplify half-stepping operation. The circuit is well su...
NJM3773
The NJM3773 is a switch-mode (chopper), constant-current driver with two channels: one for each winding of a two-phase stepper motor. The NJM3773 is also equipped with a Disable input to simplify half-stepping operation. The circuit is well suited for micros...
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NJM37717
NJM37717 is a stepper motor diver, which consists of a LS-TTL compatible logic input stage, a current sensor, a monostable multivibrator and a high power H-bridge output stage with built-in protection diodes.NJM37717 is a high voltage version and pin compati...
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