Details

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BUY MCP73871T-2CCI/ML https://www.utsource.net/itm/p/12612130.html

Parameter	Symbol	Conditions	Min	Typ	Max	Unit
Input Voltage	VIN	Operating	3.0	-	5.5	V
Charge Current	ICHG	Programmable	0	-	1000	mA
Pre-charge Current	IPRE	Fixed	-	200	-	mA
Termination Current	ITerm	Fixed	-	100	-	mA
Battery Voltage	VBAT	Operating	2.9	-	4.4	V
Thermal Regulation	TREG	Junction Temperature	-	80	-	掳C
Quiescent Current	IQ	No Load	-	60	-	渭A
Shutdown Current	ISD	VIN = 5V	-	0.1	-	渭A

Instructions for MCP73871T-2CCI/ML

1. Power Supply Connection:

   • Connect the input voltage (VIN) to a power source within the operating range of 3.0V to 5.5V.

2. Battery Connection:

   • Connect the battery to the VBAT pin. Ensure the battery voltage is within the operating range of 2.9V to 4.4V.

3. Charge Current Setting:

   • Use external resistors to set the charge current (ICHG). The typical charge current can be set up to 1000mA.

4. Pre-Charge and Termination Currents:

   • The pre-charge current (IPRE) is fixed at 200mA, and the termination current (ITerm) is fixed at 100mA. These values cannot be adjusted externally.

5. Thermal Regulation:

   • Monitor the junction temperature to ensure it stays below 80掳C for optimal performance.

6. Quiescent and Shutdown Currents:

   • When no load is connected, the quiescent current is approximately 60渭A.
   • In shutdown mode, the current draw from VIN should be around 0.1渭A when VIN is set to 5V.

7. Safety Considerations:

   • Always ensure proper heat dissipation and use appropriate protection circuits to safeguard against overvoltage and short circuits.

8. Programming and Configuration:

   • Refer to the specific datasheet for detailed programming instructions and configuration settings for advanced features like status monitoring and fault protection.

(For reference only)