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TPB4056B

1-A Single Cell Li-Ion Battery Linear Charger with NTC Monitor

Overview

The TPB4056B is a cost-effective, high-integration linear charger for single-cell Li-ion or Li-ion polymer batteries. The device supports CC/CV charge from either a USB port or an AC adapter. Low BOM component requirement makes the size of the whole system small. High input voltage range with over-voltage protection supports lowcost unregulated adapters.

The TPB4056B charge current is fully programmable up to 1000 mA with an external resistor. The TPB4056B automatically terminates the charge cycle when the charge current drops below 10% of the set charge current value after the battery voltage reaches the float voltage.

The TPB4056B implements two indication pins: CHRG and STDBY, allowing connection to the microcontroller or LED to show device status. With open-drain structure, CHRG stays low during charging, and STDBY stays low after charging is complete. Other pins are in the highimpedance state.

The TPB4056B features a thermal foldback function to

limit the charge current and protect the device from overjunction temperature faults. The TPB4056B also integrates the current monitor, UVLO, and OVP functions to prevent the device from damage.


  • Status

    Production

  • Rating

    Industrial

  • VIN MAX (V)

    26.5

  • Float Voltage (V)

    4.2

  • Float Voltage Accuracy

    0.01

  • Max Output Current (mA)

    1000

  • IBAT (μA)

    4

  • OVP (V)

    10.5

  • Temperature Range (℃)

    -40 to +125

  • Package

    ESOP8, EMSOP8

Development Resources

Application

    • Portable Devices, GPS, ePOS, e-cigarette

    • Wireless Devices, Bluetooth Headset

    • Personal Electronics, Personal Healthcare

    • Wearable Devices


Ordering Detail

Order Part Number Buy Samples Rating Feature Status 1ku Price Release Date Package Lead time (week) MSL Packing MPQ CPQ
TPB4056B2X-ES1R Industrial Grade / Released $0.215 2023-07-20 ESOP8 12 MSL3 T&R 4000 20000
TPB4056B2X-EV1R Industrial Grade / Released $0.186 2023-07-20 EMSOP8 11 MSL3 T&R 3000 15000

Note: All sample requests must be approved through your 3PEAK sample account, click the request sample button to log in or create your account.

Please allow 1 business day for processing time.

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