IP2312
IP2312 is Single-cell lithium battery synchronous switch buck charger manufactured by Injoinic.
Features
ÿ Synchronous switch step-down charging ÿ Charging efficiency 94% (3.7V/2A) ÿ Maximum charging current 3A ÿ Charging current can be adjusted by external resistor ÿ Automatically adjusts the input current and is patible with small current adapters ÿSupport 4.20V/4.30V/4.35V/4.4V battery ÿSupport charging NTC temperature protection ÿSupports LED charging status indication ÿ Built-in power MOS ÿ 750KHz switching frequency, can support 1u H inductor ÿ Input overvoltage and undervoltage protection ÿ IC over-temperature protection ÿCharging timeout protection
ÿ ESD 4KV
2applications _
ÿSingle-cell lithium battery/lithium-ion battery charging
3Introduction _
IP2312 is a 5V input that supports single-cell lithium battery synchronization Switching buck charge management IC.
IP2312 integrates power MOS and adopts synchronous switching architecture to enable It requires only a few peripheral ponents during application and effectively reduces the overall The size of the solution reduces the BOM cost.
IP2312 Boost Switching Charge Converter Operating Frequency 750KHz, the maximum charging current is 3A, 5V input, 3.7V/2A conversion The conversion efficiency is 94%; the charging current can be set through an external resistor.
The input voltage of IP2312 is 5V, and the input can intelligently adjust charging. current to prevent the adapter from being pulled.
IP2312 is packaged in ESOP8 .
VIN input 4.5~5.5V
C1 C2 D1 D2
E 8
RVSET
D1 1
D2
NTC 4
RNTC
L1 SW
6 ICHG
RICHG
9(EPAD)
TEST
VBAT
VBAT
Figure 1 Simplified application schematic diagram
V1.0
.injoinic.
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Copyright © 2017, Injoinic Corp.
Machine Translated by Google
4 pin definition
D1
2 TEST
3 D2
4 NTC power...
Representative IP2312 image (package may vary by manufacturer)
