Details

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BUY BA6238A https://www.utsource.net/itm/p/975229.html
2-Channel Reversible Motor Driver

Parameter	Symbol	Conditions	Min	Typ	Max	Unit
Supply Voltage	VCC		4.5	5	5.5	V
Output Voltage (VOUT1)	VOUT1	No Load		3.3		V
Output Voltage (VOUT2)	VOUT2	No Load		2.5		V
Quiescent Current	IQ	VCC = 5V		1		mA
Dropout Voltage	VD	IOUT = 100mA		0.3		V
Load Regulation		IOUT = 0 to 100mA		0.1		%
Line Regulation		VCC = 4.5 to 5.5V		0.1		%
Ripple Rejection		f = 120Hz		60		dB
Operating Temperature	Toper		-40		85	掳C
Storage Temperature	Tstg		-65		150	掳C

Instructions for BA6238A:

1. Power Supply Connection:

   • Connect the supply voltage (VCC) between 4.5V and 5.5V to the input pin.
   • Ensure a stable power supply to avoid fluctuations that can affect performance.

2. Output Connections:

   • VOUT1 provides a regulated 3.3V output under no-load conditions.
   • VOUT2 provides a regulated 2.5V output under no-load conditions.
   • Use appropriate capacitors at the output to stabilize the voltages.

3. Quiescent Current:

   • The quiescent current is typically 1mA, which should be considered in low-power applications.

4. Dropout Voltage:

   • Operates efficiently with a dropout voltage of 0.3V at an output current of 100mA.

5. Regulation:

   • Both load and line regulation are specified at 0.1%, ensuring stable output voltages over varying loads and input voltages.

6. Ripple Rejection:

   • Provides good ripple rejection of 60dB at 120Hz, minimizing noise on the output.

7. Temperature Considerations:

   • Operate within the temperature range of -40掳C to 85掳C for optimal performance.
   • Store the device between -65掳C and 150掳C.

8. Capacitor Recommendations:

   • For stability, use ceramic capacitors with low ESR values.
   • Typical values are 1渭F at the input and 1渭F at each output.

9. PCB Layout:

   • Keep the layout compact and minimize trace lengths to reduce noise and improve efficiency.
   • Place bypass capacitors as close as possible to the IC pins.

10. Handling Precautions:

    • Handle the component with care to avoid damage from electrostatic discharge (ESD).
    • Follow standard precautions when soldering to prevent thermal damage.

(For reference only)