component
IP2320
Public Made by Adomby adom
INJOINIC Battery Management, ESOP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownIP2320
INJOINIC · Battery Management · ESOP-8
IP2320 from INJOINIC, in a ESOP-8. 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 | VSYS | power_out | Boost output intermediate node; place one 22uF ceramic capacitor right next to this pin. |
| 2 | VOUT | power_out | Boost output pin connected to the battery positive terminal; absolute maximum voltage on VIN/VOUT/VSYS/BST/LX is -0.3 to 20 V. |
| 3 | VSET | input | Constant-voltage charge setting pin; an external resistor RVSET (0 to 12 kΩ) sets VTRGT = 8.05 + RVSET x 0.08 V, with RVSET 5.1 kΩ giving 8.45 V. |
| 4 | NTC | bidirectional | NTC temperature protection pin for a 10K NTC resistor; it sources 50 uA and charging stops when the pin voltage is below 0.245 V (too hot) or above 1.375 V (too cold), and it should be tied to GND through 10K if NTC is unused. |
| 5 | LED | bidirectional | Charge-status LED driver that is also multiplexed to set the constant charge current via RISET (20K: 0.6 A, 75K: 0.4 A, 200K: 0.2 A, NC: 1.0 A), with LED drive current limited to 5 mA. |
| 6 | VIN | power_in | Input supply and input-detection pin; recommended input is 4.5 V to 5.5 V (typ. 5 V), with input overvoltage protection at 5.6 to 6.0 V and absolute maximum of 20 V. |
| 7 | BST | passive | Bootstrap pin; place a 0.1uF bootstrap capacitor close to the BST and LX pins. |
| 8 | LX | output | DC-DC switching node that connects to the 2.2uH inductor; absolute maximum voltage is 20 V. |
| 9 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | INJOINIC |
| Package | ESOP-8 |
| Category | Power Management (PMIC) |
| Pins | 9 |
CAD (KiCad official)
- Symbol:
IP2320 - Footprint:
Package_SO:SOIC-8-1EP_3.9x4.9mm_P1.27mm_EP2.41x3.3mm - 3D model: ESOP-8 (KiCad packages3D, STEP)
- 3D model files:
ip2320-etched.step/ip2320-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ip2320.step/ip2320.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: INJOINIC datasheet (11 pp, sha256
1338e5cc51e890f9, retrieved 2026-10-09, 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, primaryclaude-haiku-5-5(text), consensusclaude-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).