component
IP2315
Public Made by Adomby adom
INJOINIC Battery Management, QFN-32-EP(5x5). Datasheet-verified pinout, 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
markdownIP2315
INJOINIC · Battery Management · QFN-32-EP(5x5)
IP2315 from INJOINIC, in a QFN-32-EP(5x5). Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | NC | unconnected | No internal connection (悬空) |
| 2 | CC1 | input | USB Type-C channel 1 detection pin for fast charging protocol recognition (Type-C PD/FCP/AFC/PE+) |
| 3 | CC2 | input | USB Type-C channel 2 detection pin for fast charging protocol recognition (Type-C PD/FCP/AFC/PE+) |
| 4 | NC | unconnected | No internal connection (悬空) |
| 5 | NC | unconnected | No internal connection (悬空) |
| 6 | VSYS | power_out | Intermediate power rail output requiring 22µF bypass capacitor, decouples input stage from buck converter |
| 7 | VSYS | power_out | Intermediate power rail output requiring 22µF bypass capacitor, decouples input stage from buck converter |
| 8 | LED1 | output | LED1 charging indicator driver output (default); multiplexed as SCL (clock) when I2C mode enabled with both pins 8,9 pulled high |
| 9 | LED2 | output | LED2 charging indicator driver output (default); multiplexed as SDA (data) when I2C mode enabled with both pins 8,9 pulled high at VIN power-up |
| 10 | LED3 | output | LED3 charging indicator driver output; multiplexed with VSET target voltage configuration via pull-down resistor to ground |
| 11 | LX | passive | DCDC synchronous buck converter switching node, connects to 2.2µH external inductor |
| 12 | LX | passive | DCDC synchronous buck converter switching node, connects to 2.2µH external inductor |
| 13 | LX | passive | DCDC synchronous buck converter switching node, connects to 2.2µH external inductor |
| 14 | LX | passive | DCDC synchronous buck converter switching node, connects to 2.2µH external inductor |
| 15 | BST | passive | Bootstrap capacitor node for internal high-side gate driver, requires capacitor connection from BST to LX |
| 16 | HLED | output | Fast charging state indicator output for LED status display (active during fast charge) |
| 17 | GND | power_in | Ground reference pin for signal and power return paths |
| 18 | VSYS | power_out | Intermediate power rail output requiring 22µF bypass capacitor, decouples input stage from buck converter |
| 19 | VSYS | power_out | Intermediate power rail output requiring 22µF bypass capacitor, decouples input stage from buck converter |
| 20 | VIN | power_in | Main input power supply pin from USB charger, operating range 4.5V to 14V (5V/7V/9V/12V support with fast charging protocols) |
| 21 | VIN | power_in | Main input power supply pin from USB charger, operating range 4.5V to 14V (5V/7V/9V/12V support with fast charging protocols) |
| 22 | BAT | output | Battery charging output and voltage feedback sense pin, connects to battery positive terminal for constant-voltage and constant-current regulation |
| 23 | DM | input | USB D-minus data line input for intelligent fast charging protocol detection (FCP/AFC/PE+/PD) |
| 24 | DP | input | USB D-plus data line input for intelligent fast charging protocol detection (FCP/AFC/PE+/PD) |
| 25 | NC | unconnected | No internal connection (悬空) |
| 26 | NTC | input | Negative temperature coefficient thermistor detection pin, 20µA source for temperature sensing; must connect to 51K to ground if NTC protection not used |
| 27 | ICHGSET | input | Charging input current setting pin via external resistor (15K to >300K ohm sets 0.5A to 3.2A input current for standard IP2315 variant) |
| 28 | NC | unconnected | No internal connection (悬空) |
| 29 | NC | unconnected | No internal connection (悬空) |
| 30 | NC | unconnected | No internal connection (悬空) |
| 31 | GND | power_in | Ground reference pin for signal and power return paths |
| 32 | NC | unconnected | No internal connection (悬空) |
| 33 | EPAD | power_in | Exposed thermal pad serving as power ground and thermal dissipation ground, requires good thermal contact to ground plane with via array |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | INJOINIC |
| Package | QFN-32-EP(5x5) |
| Category | Power Management (PMIC) |
| Pins | 33 |
CAD (KiCad official)
- Symbol:
IP2315 - Footprint:
Package_DFN_QFN:QFN-32-1EP_5x5mm_P0.5mm_EP3.3x3.3mm - 3D model: QFN-32-EP(5x5) (KiCad packages3D, STEP)
- 3D model files:
ip2315-etched.step/ip2315-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ip2315.step/ip2315.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: INJOINIC datasheet (21 pp, sha256
c41219f69efd6a9b, retrieved 2026-09-22, 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 0.2, primaryclaude-haiku-4-5-20251001(text), consensusclaude-sonnet-4-6(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).