Details

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BUY LM78M15CH https://www.utsource.net/itm/p/12541420.html

Parameter	Symbol	Min	Typical	Max	Unit
Input Voltage	VIN	17.5	-	30	V
Output Voltage	VOUT	-	15	-	V
Output Current	IOUT	-	500	-	mA
Line Regulation	-	-	0.01	-	%/V
Load Regulation	-	-	0.1	-	%/mA
Dropout Voltage	VDROPOUT	-	2.0	-	V
Quiescent Current	IQ	-	5	-	mA
Ripple Rejection	-	-	60	-	dB
Operating Temperature	Toper	-40	-	125	°C
Storage Temperature	Tstg	-65	-	150	°C

Instructions for Using LM78M15CH

1. Input Voltage:

   • Ensure the input voltage is within the range of 17.5V to 30V to avoid damage to the regulator.

2. Output Voltage:

   • The output voltage is fixed at 15V. No external components are required to set this voltage.

3. Output Current:

   • The maximum continuous output current is 500mA. Ensure that the load does not exceed this limit to prevent overheating or damage.

4. Capacitors:

   • Use a 0.33μF capacitor on the input side and a 0.1μF capacitor on the output side to ensure stability and reduce ripple.
   • For better transient response and noise filtering, larger capacitors (e.g., 10μF) can be used.

5. Heat Dissipation:

   • The device may require a heatsink if operating near its maximum output current, especially in high ambient temperatures.
   • Calculate the power dissipation using the formula: ( P = (VIN - VOUT) times IOUT ).

6. Mounting:

   • Mount the regulator on a PCB with adequate clearance from other components to allow for proper heat dissipation.
   • Use thermal vias or a heatsink to improve thermal performance.

7. Storage and Handling:

   • Store the device in a dry, cool environment to prevent moisture damage.
   • Handle with care to avoid static discharge, which can damage the internal circuits.

8. Testing:

   • Before connecting the regulator to the final circuit, test it on a breadboard or prototype board to ensure it meets the required specifications.
   • Measure the output voltage and current to verify proper operation.

9. Safety:

   • Always use appropriate safety measures when working with electrical components, including grounding and using insulated tools.
   • Do not operate the device beyond its specified limits to prevent damage or failure.

(For reference only)