li+ charger protection ic with integrated p‐mosfet
description
the zt2306/a provides complete li+ charger
protection against input over‐voltage, input
over‐current, and battery over‐voltage. when
any of the monitored parameters are over the
threshold, the ic removes the power from the
charging system by turning off an internal
switch. all protections also have deglitch time
against false triggering due to voltage spikes or
current transients.
the zt2306/a integrates a p‐mosfet with the
body diode reverse protection to replace the
external p‐mosfet and schottky diode for
charger function of cell phone’s pmic. when
the chrin voltage drops below vbat+20mv,
the internal power select circuit will reverse
the body diode’s terminal to prevent a reverse
current flowing from the battery back to
chrin pin.
the zt2306/a is available in the tdfn 2x2‐8l
(ep) and sot23‐6l packages, and it is rohs
compliant and 100% lead (pb) free.
ordering information
part package rohs ship, quantity
zt2306d tdfn 2x2‐8l yes tape and reel
zt2306ad tdfn 2x2‐8l yes tape and real
zt2306s sot23‐6l yes tape and real
zt2306as sot23‐6l yes tape and real
features
● input over‐voltage protection
● input over‐current protection
● battery over‐voltage protection
● high immunity of false triggering
● high accuracy protection threshold
● a built‐in p‐mosfet
● thermal shutdown protection
● rohs compliant and 100% lead (pb) free
applications
● cell phones
pins configuration
typical application circuit
中國區代理
深圳市富創矽谷科技有限公司
tel:0755-82964420
fax:0755-83453778