NJM#37770D3 NJR, NJM#37770D3 Datasheet - Page 8

• Manufacturer Part Number: NJM#37770D3
• Description: Motor / Motion / Ignition Controllers & Drivers 60V Hi-Perf Stpr
• Manufacturer: NJR
• Type: Stepper Motor Driverr

Specifications of NJM#37770D3

• Product: Stepper Motor Controllers / Drivers
• Operating Supply Voltage: 5 V
• Supply Current: 65 mA
• Mounting Style: Through Hole
• Package / Case: DIP-16
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Analog control
Sensor resistor
800 mA max motor current at V
External recirculation diodes
connected to the motor terminals and the cathodes to the V
maximum performance and reliability.
- 8 -
As the current levels can be continuously controlled by modulating the V
The R
The peak motor current, i
i
Recirculation diodes must be connected across each motor terminal and the supply voltage, V
Figure 8. Copper foil used as a heatsink
m
=(V
R
S
• 0.080) / R
resistor should be of a noninductive type power resistor. A 0.5 ohm resistor, tolerance ≤ 1%, is a good choice for
S
[A], at 100% level
m
, can be calculated by using the formula:
R
= 5V.
Figure 9. Principal operating sequence.
MM
voltage. Ultra-fast recovery diodes should be used for
R
input, limited microstepping can be achieved.
MM
. The anodes shall be
Ver.2006-04-11