Details

---

BUY A7840 BRAND NEW ORIGINAL GOODS IN STOCK DIP8 https://www.utsource.net/itm/p/11724702.html

Parameter	Value/Description
Part Number	A7840
Package Type	DIP-8 (Dual Inline Package)
Function	Voltage Regulator
Input Voltage Range	5.5V to 35V
Output Voltage	5V
Output Current	1A
Quiescent Current	5mA (Typical)
Dropout Voltage	2V (Maximum)
Operating Temperature	-40掳C to +125掳C
Storage Temperature	-65掳C to +150掳C
Thermal Resistance	50掳C/W (Typical, Junction to Ambient)
Mounting Type	Through-Hole
Polarity	Polarized
Lead Finish	Tin Lead
RoHS Compliance	Yes

Instructions for Use:

1. Pin Configuration:

   • Pin 1: Input Voltage (VIN)
   • Pin 2: Ground (GND)
   • Pin 3: Output Voltage (VOUT)
   • Pin 4: NC (No Connect)
   • Pin 5: NC (No Connect)
   • Pin 6: NC (No Connect)
   • Pin 7: NC (No Connect)
   • Pin 8: NC (No Connect)

2. Circuit Design:

   • Connect the input voltage (VIN) to Pin 1.
   • Connect the ground (GND) to Pin 2.
   • Connect the output voltage (VOUT) to Pin 3.
   • Ensure that the input voltage is within the specified range (5.5V to 35V).
   • Place a bypass capacitor (typically 0.1渭F) between VIN and GND close to the regulator to filter out noise.
   • Place a smoothing capacitor (typically 10渭F) between VOUT and GND to stabilize the output.

3. Heat Management:

   • The A7840 can dissipate heat through its package, but for high current applications, consider using a heatsink.
   • Calculate the power dissipation using the formula: ( P = (VIN - VOUT) times IOUT ).
   • Ensure that the junction temperature does not exceed 125掳C.

4. Storage and Handling:

   • Store the A7840 in a dry environment to prevent moisture damage.
   • Handle with care to avoid bending or damaging the leads.
   • Follow standard ESD (Electrostatic Discharge) precautions when handling the component.

5. Testing:

   • Before final assembly, test the A7840 by applying the input voltage and measuring the output voltage to ensure it is regulated to 5V.
   • Check the quiescent current to ensure it is within the typical range.

By following these instructions, you can ensure reliable operation of the A7840 voltage regulator in your application.

(For reference only)