Details

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BUY DS1244Y-150 https://www.utsource.net/itm/p/339827.html
256K NV SRAM with Phantom Clock

Parameter	Symbol	Min	Typ	Max	Unit
Operating Voltage	Vcc	4.75	5	5.25	V
Output Current	Iout	-	150	-	mA
Quiescent Current	Iq	-	3	-	mA
Dropout Voltage	Vdo	-	0.5	-	V
Load Transient Response	ΔVout	-	50	-	mV
Line Transient Response	ΔVout	-	50	-	mV
Thermal Shutdown	Tsd	-	160	-	°C
Storage Temperature	Tstg	-65	-	150	°C
Operating Temperature	Topr	-40	-	85	°C

Instructions for DS1244Y-150

1. Power Supply:

   • Ensure the input voltage (Vcc) is within the range of 4.75V to 5.25V.
   • Connect the Vcc pin to a stable power supply.

2. Output Configuration:

   • The output current (Iout) should not exceed 150mA to avoid damage to the device.
   • Use appropriate load resistance to match the desired output current.

3. Thermal Management:

   • Monitor the operating temperature to ensure it does not exceed 85°C.
   • If the device reaches the thermal shutdown temperature (160°C), it will automatically shut down to prevent damage.

4. Transient Response:

   • The load and line transient responses are both specified at 50mV. Design the circuit to handle these transients without significant performance degradation.

5. Storage and Handling:

   • Store the device in an environment with temperatures between -65°C and 150°C.
   • Handle the device with care to avoid static discharge and physical damage.

6. Quiescent Current:

   • The quiescent current (Iq) is typically 3mA. This value should be considered when designing the power supply and overall system efficiency.

7. Dropout Voltage:

   • The dropout voltage (Vdo) is typically 0.5V. Ensure that the input voltage is always at least 0.5V higher than the desired output voltage to maintain regulation.

8. Schematic and Layout:

   • Follow the recommended layout guidelines provided in the datasheet to ensure optimal performance and reliability.
   • Place bypass capacitors close to the Vcc and GND pins to filter out noise and improve stability.

9. Testing and Validation:

   • Test the device under various operating conditions to ensure it meets the required specifications.
   • Validate the design by measuring key parameters such as output voltage, current, and temperature.

10. Compliance:

    • Ensure that the device complies with all relevant safety and regulatory standards for your application.

(For reference only)