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Part Number: NJM37770
Description: NJM37770 is a stepper motor driver, which consists of a LS-TTL compatible logic input stage, a current...
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NJM37770
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DataSheet
General Description
NJM37770 General Description
NJM37770 is a stepper motor driver, which consists of a LS-TTL compatible logic input stage, a current sensor, a monostable multivibrator and a high power H-bridge output stage. The NJM37770 is a high power version and pincompatible with the NJM37717and also NJM37770 is a high voltage version with NJM3770A. Two NJM37770 and small number of external components form a complete control and drive unit stepper motor systems.
NJM37770 Maximum Ratings
| Parameter | Pin no. [DIP package] | Symbol | Min | Max | Unit |
| Voltage | |||||
| Logic supply | 6 | VCC | 0 | 7 | V |
| Motor supply | 3, 14 | VMM | 0 | 60 | 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 | -1500 | +1500 | mA |
| Logic inputs | 7,8,9 | II | -10 | - | mA |
| Analog inputs | 10,11 | IA | -10 | - | mA |
| Temperature | |||||
| Operating junction temperature | Tj | -40 | +150 | °C | |
| Storage temperature | Ts | -50 | +150 | °C |
NJM37770 Features
• Half-step and full-step operation
• Switched mode bipolar constant current drive
• Wide range of current control 5 -1500 mA
• Wide voltage range 10 - 60 V
• Thermal overload protection
• Packages DIP16 (Batwing)
• Switched mode bipolar constant current drive
• Wide range of current control 5 -1500 mA
• Wide voltage range 10 - 60 V
• Thermal overload protection
• Packages DIP16 (Batwing)
NJM37770 Typical Application
· Motor selection
· Interference
· Unused inputs
· Ramping
· VCC , VMM
· Switching frequency
· Interference
· Unused inputs
· Ramping
· VCC , VMM
· Switching frequency
NJM37770 Connection Diagram
NJM37770
PDF/DataSheet Download
- Datasheet: NJM37770
- File Size: 171195 KB
- Manufacturer: njr
- Click here to Download
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NJM37770 Relative Products
NJM3777
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, w...
NJM3776
The NJM3776 is a switch-mode (chopper), constant-current controller intended for controlling external transistors in a high current stepper motor application. The NJM3776 has two channels, one for each winding of a two-phase stepper motor. The NJM3776 is equ...
NJM3775
The NJM3775 is a switch-mode (chopper), constantcurrent driver with two channels: one for each winding of a two-phase stepper motor. NJM3775 is equipped with a Disable input to simplify half-stepping operation. The NJM3775 contains a clock oscillator, which ...
NJM3774FM2
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 ...
NJM3774D2
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 ...
NJM3774
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...
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