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IP2365

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INJOINIC TECHNOLOGY Others, QFN-24-EP(4x4). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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IP2365

INJOINIC TECHNOLOGY · Others · QFN-24-EP(4x4)

IP2365 from INJOINIC TECHNOLOGY, in a QFN-24-EP(4x4). Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 VINSEN input Input voltage detection pin: above 1.5V allows normal operation, below 1.3V stops charging and enters standby, and RVS1/RVS2 set the input undervoltage threshold.
2 AGND power_in Analog ground pin.
3 ICHG passive Battery-side charge current setting pin; a resistor RICHG to GND sets ICC_BAT = 75K/RICHG (about 1.0A to 3.0A for 75K to 25K), and the pin must not be left floating.
4 IADP passive Input-side charge current setting pin; a resistor RIADP to GND sets ICC_ADP = 75K/RIADP, and the pin must not be left floating.
5 NC unconnected No connection; leave floating.
6 NC unconnected No connection; leave floating.
7 SCL input I2C clock input at 5V logic level; SCL and SDA must both be high at VIN power-up or when VINSEN rises to enter I2C mode, and I2C supports up to 400 Kbps.
8 LED output Charge status LED output: by default it flashes at 0.5Hz while charging and stays on when full.
9 SDA bidirectional I2C data line at 5V logic level; it must be high at power-up to enable I2C mode.
10 NTC passive NTC temperature sense pin that sources 20uA into an external NTC network to GND; if NTC protection is unused it must be tied to GND through 51K and must not float.
11 AGND power_in Analog ground pin.
12 FB input Output voltage feedback pin that selects the battery cell count and full-charge voltage through the RFB1/RFB2 divider; the charge target is 2.1V at the FB pin (2.075V to 2.125V).
13 VOUT input Output voltage sense pin used to sample the battery-side voltage.
14 BST passive Bootstrap pin for the high-side gate drive; the bootstrap capacitor must be placed close to the BST and LX pins, and VBST is rated -0.3 to VLX+8 V.
15 LX output DC-DC switching node connected to the inductor (10uH in the reference design); absolute maximum rating is -0.3 to 32 V.
16 LX output DC-DC switching node connected to the inductor (10uH in the reference design); absolute maximum rating is -0.3 to 32 V.
17 PGND power_in Power ground pin.
18 PGND power_in Power ground pin.
19 VSYS power_out System voltage pin; a 22uF ceramic capacitor (not electrolytic) must be placed close to the VSYS and PGND pins; absolute maximum rating is -0.3 to 28 V.
20 VSYS power_out System voltage pin; a 22uF ceramic capacitor (not electrolytic) must be placed close to the VSYS and PGND pins; absolute maximum rating is -0.3 to 28 V.
21 VSYS power_out System voltage pin; a 22uF ceramic capacitor (not electrolytic) must be placed close to the VSYS and PGND pins; absolute maximum rating is -0.3 to 28 V.
22 VIN power_in Input voltage pin; operating input range is 5V to 26V and absolute maximum rating is -0.3 to 28 V.
23 VIN power_in Input voltage pin; operating input range is 5V to 26V and absolute maximum rating is -0.3 to 28 V.
24 VIN power_in Input voltage pin; operating input range is 5V to 26V and absolute maximum rating is -0.3 to 28 V.
25 EP passive Exposed pad (from the footprint; not named in the datasheet pin table).

Key specifications

Parameter Value
Manufacturer INJOINIC TECHNOLOGY
Package QFN-24-EP(4x4)
Category Others
Pins 25

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
VIN/VSYS/VINSEN voltage range VIN、VSYS、VVINSEN -0.3 28 V 3
VOUT/FB voltage range VVOUT、VFB -0.3 24 V 3
LX voltage range VLX -0.3 32 V 3
BST voltage range VBST -0.3 V Maximum printed as VLX+8 V (expression, not a number) 3
LED/NTC/ICHG/IADP/SCL/SDA voltage range VLED/NTC/ICHG/IADP/SCL/SDA -0.3 6 V 3
Junction temperature range TJ -40 150 ℃ 3
Storage temperature range Tstg -60 150 ℃ 3
Input voltage (recommended operating) VIN 12 24 V Minimum printed as VBAT_END+0.8 (expression, not a number) 3
Input voltage VIN 12 24 V Minimum printed as VBAT_END+0.8 (expression, not a number) 3
Input overvoltage threshold, trigger voltage VIN-OV 26 27 28 V 触发电压 (trigger voltage) 3
Input overvoltage threshold, release voltage VIN-OV 24 25 26 V 解除电压 (release voltage) 3
Input quiescent current IVIN_Q 10 20 mA VIN=12V，IBAT=0A，无 LED 3
Standby current IBAT_standby 20 30 uA VIN=0V，VBAT=8.4V 3
Charge target voltage VTRGT 2.075 2.1 2.125 V 充电时 FB 引脚最高电压 (max FB pin voltage while charging) 3
Charge current, 1-cell Li-ion ICHRG 2.7 3 3.3 A 1 串锂电池，VIN=12V，RICHG=25K, RIADP=0R 3
Charge current, 2-cell Li-ion ICHRG 2.7 3 3.3 A 2 串锂电池，VIN=12V，RICHG=25K, RIADP=0R 4
Charge current, 3-cell Li-ion ICHRG 1.8 2 2.2 A 3 串锂电池，VIN=24V，RICHG=37.5K, RIADP=0R 4
Charge current, 4-cell Li-ion ICHRG 1.35 1.5 1.65 A 4 串锂电池，VIN=24V，RICHG=50K, RIADP=0R 4
Trickle charge cutoff voltage VTRKL 1.49 1.5 1.51 V 检测 FB 引脚电压 (detect FB pin voltage) 4
Recharge threshold voltage VRCH 2.02 2.05 2.08 V 检测 FB 引脚电压 (detect FB pin voltage) 4
Input undervoltage lockout threshold VUVLO 1.25 1.3 1.35 V 检测 VINSEN 电压 (detect VINSEN voltage) 4
High-side switch on-resistance RDS(ON) 40 50 60 mΩ 上管导通电阻 4
Low-side switch on-resistance RDS(ON) 30 40 50 mΩ 下管导通电阻 4
LED output current ILED 5 10 mA LED 输出电流 4
Switching frequency FS 350 400 450 KHz 4
Thermal shutdown temperature, rising TOTP 120 140 160 ℃ 上升温度 (rising temperature) 4
Thermal shutdown hysteresis ΔTOTP 30 40 50 ℃ 4
ESD rating, human body model (HBM) ESD 4 kV 人体模型 (HBM) 3
Thermal resistance, junction to ambient θJA 50 ℃/W 结温到环境 (junction to ambient) 3

CAD (KiCad official)

  • Symbol: IP2365
  • Footprint: Package_DFN_QFN:QFN-24-1EP_4x4mm_P0.5mm_EP2.6x2.6mm
  • 3D model: QFN-24-EP(4x4) (KiCad packages3D, STEP)
  • 3D model files: ip2365-etched.step / ip2365-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ip2365.step / ip2365.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: INJOINIC TECHNOLOGY datasheet (20 pp, sha256 d715942ff28e2d1e, retrieved 2026-10-17, tier: lcsc)
  • Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus claude-sonnet-5-5 (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF