Details

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BUY NJM3517E2 https://www.utsource.net/itm/p/363908.html
STEPPER MOTOR CONTROLLER / DRIVER

Parameter	Symbol	Conditions	Min	Typ	Max	Unit
Supply Voltage	VCC	-	4.5	-	16	V
Quiescent Current	IQ	VCC = 12V, No Load	-	4.0	-	mA
Output Current (per channel)	IO	VCC = 12V, THD = 1%	200	-	-	mA
Power Output (per channel)	PO	VCC = 12V, RL = 8Ω, THD = 1%	-	2.5	-	W
Total Harmonic Distortion	THD	VCC = 12V, f = 1kHz, PO = 1W	-	0.05	-	%
Signal-to-Noise Ratio	SNR	VCC = 12V, A-weighted	-	95	-	dB
Input Sensitivity	VI	VCC = 12V, PO = 1W	-	250	-	mV
Input Impedance	ZI	-	-	47	-	kΩ
Operating Temperature	TA	-	-40	-	85	°C

Instructions for Use

1. Power Supply:

   • Ensure the supply voltage (V_CC) is within the range of 4.5V to 16V.
   • Use a stable power source to avoid voltage fluctuations that can affect performance.

2. Grounding:

   • Connect the ground (GND) pin to a common ground reference to ensure proper operation and minimize noise.

3. Input Signals:

   • Apply input signals to the input pins (IN1, IN2) with a typical sensitivity of 250mV for 1W output power.
   • Ensure the input impedance is matched to the source to avoid signal degradation.

4. Output Connections:

   • Connect the output pins (OUT1, OUT2) to the load (e.g., speakers) with an appropriate impedance (e.g., 8Ω).
   • Do not exceed the maximum output current of 200mA per channel to prevent damage.

5. Thermal Management:

   • Ensure adequate heat dissipation if operating at high power levels or in high ambient temperatures.
   • Consider using a heatsink if the device is expected to operate continuously at high output power.

6. Protection Circuits:

   • The NJM3517E2 includes built-in protection circuits for short-circuit, thermal, and overvoltage conditions.
   • However, it is recommended to design the circuit with additional protection components as needed.

7. Layout Considerations:

   • Keep power and ground traces wide and short to reduce resistance and inductance.
   • Place decoupling capacitors close to the power pins to filter out high-frequency noise.

8. Storage and Handling:

   • Store the device in a dry, cool place to prevent moisture damage.
   • Handle the device with care to avoid static discharge, which can damage sensitive components.

(For reference only)