Details

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BUY LTC4053EDD-4.2 https://www.utsource.net/itm/p/1216938.html
150mA Standalone Linear Li-Ion Battery Charger in ThinSOT

Parameter	Symbol	Conditions	Min	Typ	Max	Unit
Input Voltage	VIN	Operating Range	3.8	-	6	V
Battery Charge Voltage	VBAT	Fixed	-	4.2	-	V
Charge Current	ICHG	Programmable	0	-	1.5	A
System Regulation	VSYS	Output Voltage	-	4.2	-	V
Quiescent Current	IQ	Active Mode	-	100	-	渭A
Shutdown Current	ISD	Shutdown Mode	-	0.1	-	渭A
Thermal Shutdown	TSD	Trigger Point	-	160	-	掳C

Instructions for LTC4053EDD-4.2:

1. Input Connection:

   • Connect the input voltage (VIN) to a power source within the operating range of 3.8V to 6V.

2. Battery Charging:

   • The device is configured to charge batteries at a fixed voltage of 4.2V.
   • Set the charge current by adjusting an external resistor according to the datasheet formula.

3. System Regulation:

   • The system output voltage (VSYS) is regulated to 4.2V, suitable for powering downstream circuits while charging.

4. Quiescent and Shutdown Currents:

   • In active mode, the quiescent current is typically 100渭A.
   • Use the shutdown feature to reduce current consumption to approximately 0.1渭A when not in use.

5. Thermal Protection:

   • The device includes thermal shutdown protection that activates at approximately 160掳C to prevent damage from overheating.

6. Application Specific Settings:

   • Refer to the specific application notes and detailed datasheet for precise setup and configuration tailored to your application requirements.

(For reference only)