# IP6806_NF

**INJOINIC** · Battery Management ICs · QFN-32-EP(5x5)

IP6806_NF from INJOINIC, in a QFN-32-EP(5x5). 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 | GND | power_in | Analog ground. |
| 2 | IGND | input | Current communication/demodulation negative input, connected across the external 20 mΩ sampling resistor. |
| 3 | ISENSE | input | Current communication/demodulation positive input, connected across the external 20 mΩ sampling resistor. |
| 4 | VCC | power_in | Internal VCC supply, powered from VIN through a 100R resistor or from a 4V LDO (recommended range 3.8V to 5V). |
| 5 | PGND | power_in | Power ground of the internal power MOS transistor, connected to the positive terminal of the external 20 mΩ sampling resistor. |
| 6 | NC | unconnected | NC pin, left floating and cannot be grounded. |
| 7 | NC | unconnected | NC pin, left floating and cannot be grounded. |
| 8 | NC | unconnected | NC pin, left floating and cannot be grounded. |
| 9 | NC | unconnected | NC pin, left floating and cannot be grounded. |
| 10 | DEBUG | output | Debug pin, serial output of print information. |
| 11 | NTC | input | NTC input pin that sources 20uA and senses NTC voltage; power transfer stops below 0.5V and resumes above 0.72V, ground through 100K if unused. |
| 12 | LOSS_THR | input | Dynamic FOD parameter adjustment, set by an external resistor to GND (50K to 130K, default 100K). |
| 13 | LED1 | output | LED1 output, 2 mA min to 4 mA source current capability. |
| 14 | IO4 | bidirectional | Internal GPIO4, I/O range GND-0.3V to VCC+0.3V. |
| 15 | LED3 | output | LED3 output, 2 mA min to 4 mA source current capability. |
| 16 | LED2 | output | LED2 output, 2 mA min to 4 mA source current capability. |
| 17 | IO7 | bidirectional | Internal GPIO7, I/O range GND-0.3V to VCC+0.3V. |
| 18 | V_DECODE | input | Voltage communication/demodulation input. |
| 19 | BST1 | passive | Internal high voltage drive supply, connect a capacitor to LX1. |
| 20 | LX1 | output | H-bridge switching node 1. |
| 21 | LX1 | output | H-bridge switching node 1. |
| 22 | LX2 | output | H-bridge switching node 2. |
| 23 | LX2 | output | H-bridge switching node 2. |
| 24 | BST2 | passive | Internal high voltage drive supply, connect a capacitor to LX2. |
| 25 | NC | unconnected | NC pin, left floating and cannot be grounded. |
| 26 | VIN | power_in | External voltage input pin, 4.5V to 12V recommended, 16V absolute maximum. |
| 27 | VIN | power_in | External voltage input pin, 4.5V to 12V recommended, 16V absolute maximum. |
| 28 | DM | bidirectional | USB DM, absolute maximum 12V and recommended GND-0.3V to 5.5V. |
| 29 | DP | bidirectional | USB DP, absolute maximum 12V and recommended GND-0.3V to 5.5V. |
| 30 | VDET | input | Coil voltage sense input, a 2.2nF capacitor to ground sets default static FOD sensitivity. |
| 31 | NC | unconnected | NC pin, left floating and cannot be grounded. |
| 32 | AGND | power_in | Analog ground. |
| 33 | EPAD | power_in | Exposed pad, power ground of the internal power MOS transistor, connected to the positive terminal of the external 20 mΩ sampling resistor. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | INJOINIC |
| Package | QFN-32-EP(5x5) |
| Category | Power Management ICs |
| Pins | 33 |

## 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 input voltage (absolute maximum) | VIN | -0.3 |  | 16 | V | Voltages referenced to GND | 5 |
| VCC voltage (absolute maximum) | VCC | -0.3 |  | 12 | V | Voltages referenced to GND | 5 |
| DP, DM voltage (absolute maximum) | DP,DM | -0.3 |  | 12 | V | Voltages referenced to GND | 5 |
| Junction temperature range | TJ | -40 |  | 125 | ℃ |  | 5 |
| Storage temperature range | Tstg | -60 |  | 125 | ℃ |  | 5 |
| Package thermal resistance | θJA |  |  | 40 | ℃/W |  | 5 |
| VIN input voltage range | VIN | 4.5 |  | 12 | V | Typ printed as 5/9 | 5 |
| VCC voltage range | VCC | 3.8 | 4.2 | 5 | V |  | 5 |
| VIN | VIN | 4.5 |  | 12 | V | TA=25℃; typ printed as 5/9 | 5 |
| VCC | VCC | 3.8 | 4.2 | 5 | V | TA=25℃ | 5 |
| LED1,LED2,LED3 source current output capability |  | 2 |  | 4 | mA | Source current to output high level is 0.8*VCC | 6 |

## Materials and finish

As the datasheet states them (page.json `metadata.appearance`; the 3D model's colours follow it).

| Part | Material | Colour / plating | Datasheet says | Page |
|---|---|---|---|---|
| housing | Abs |  | Human Body Model (HBM) ESD 4KV V *Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. | 5 |

## CAD (KiCad official)

- Symbol: `IP6806_NF`
- 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: `ip6806-nf-etched.step` / `ip6806-nf-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ip6806-nf.step` / `ip6806-nf.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [INJOINIC datasheet](docs/ip6806-nf-datasheet.pdf) (16 pp, sha256 `7fb46bdfb81c3610`, retrieved 2026-10-31, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-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](docs/ip6806-nf-datasheet.pdf)