TP4066H description:
TP4066H is a single lithium-ion battery with a 30V high voltage input and complete OVP protection function. It uses a constant current/constant voltage linear charger. The ESOP8/DFN2 * 2-8 package with heat sinks at the bottom and fewer external components make TP4066H an ideal choice for portable applications. TP4066H can work with USB power supplies and adapter power supplies. The maximum withstand voltage of TP4066H‘s CE, TEMP, CHRG, and STDBY ports can also reach 30V.
Due to the use of an internal PMOSFET architecture and an anti reverse charging circuit, there is no need for external isolation diodes. Thermal feedback can automatically adjust the charging current to limit the chip temperature during high-power operation or high ambient temperature conditions. The full charge voltage is 4.2V, 4.35V, 4.4V, and the charging current can be set externally through a resistor. When the charging current drops to 1/10 of the set value after reaching the final float charging voltage, TP4066H will automatically terminate the charging cycle.
When the input voltage (AC adapter or USB power supply) is removed, TP4066H automatically enters a low current state, reducing the battery leakage current to below 1uA. TP4066H can also be placed in shutdown mode when there is power, thereby reducing the power supply current to 100uA. Other features of TP4066H include battery temperature detection, input undervoltage lockout, input overvoltage protection, automatic recharging, CE enable end control, and two LED status pins for indicating charging and ending.
TP4066H Feature:
Maximum 30V power input (according to typical circuit applications) · Programmable charging current of up to 1000mA
Used for single lithium-ion batteries
Constant current/constant voltage operation, with temperature adaptation to achieve maximum charging rate
A preset charging voltage with an accuracy of ± 1%
Output of charging current monitor for battery level detection
When the cut-off voltage is 4.2V, 4.35V, 4.4V, and the input voltage is 6.5V, the chip OVP protection is applied
Dual output charging status, no battery, and fault status display
C/10 charging termination
20% trickle current, supports 0V battery charging
When there is no power supply, the battery leakage is less than 1uA · 2.9V trickle charging
Reverse polarity protection for lithium batteries
Soft start limits surge current
Battery temperature monitoring function
2 packaging options, using 8-pin ESOP/DFN2 * 2
TP4066H Application:
Bluetooth Speaker
Table lamp
Various mobile devices and chargers
Electronic cigarettes
TP4066H Typical applications:
TP4066H Packaging/ordering information:
.jpg) ESOP8 Package (Bottom with heat sink needs to be grounded)
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Order model
TP4066H-42/44-ESOP8
Device labeling:
BYYWWH→4.2V/4.4V（片选）
Seal Description：
TP4066
BYYWWH
H is a fixed identifier
BYYWWH：Chip selectable voltage（CE=VIn：4.2V ,CE=NC：4.4V)
AYYWWH：Voltage (fixed output voltage 4.35V)
YYWW is the production batch number, variable
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 DFN2 * 2-8 package
(Bottom with heat sink needs to be grounded)
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Order model
TP4066H-42/44-DFN228 TP4066H-435-DFN228 Device labeling:
BYMH→4.2V/4.4V(Film selection) AYMH→4.35V(Fixed output voltage) Seal Description：
4066 BYMH H is a fixed identifier, BYMH: Chip selectable voltage (CE=VIn: 4.2V, CE=NC:4.4V) AYWH: Voltage (fixed output voltage 4.35V) YM is the production batch number, variable Y is the year and M is the month |
TP4066H Block diagram:
TP4066H Schematic diagram and PCB wiring reference diagram (TEMP function not used, this pin is grounded)：
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