component
CN3142
Public Made by Adomby adom
ShangHai Consonance Elec Battery Management, SOT-23-6. 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
markdownCN3142
ShangHai Consonance Elec · Battery Management · SOT-23-6
CN3142 from ShangHai Consonance Elec, in a SOT-23-6. 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 | CHRG | tri_state | Open-drain charge-status indicator output; outputs 2 Hz pulse during charging, continuous low level at end of charge, and high-impedance during sleep mode or battery over-temperature/over-cold; sink current ICHRG = 10 mA (typ) at VCHRG = 0.3 V (charge-complete state), leakage 1 µA max at VCHRG = 6 V in sleep mode. |
| 2 | GND | power_in | Power-supply ground return; PCB copper area on this pin should be maximized to improve thermal dissipation from the SOT-23-6 package. |
| 3 | BAT | power_out | Battery positive terminal; delivers trickle, constant-current (up to 400 mA), and constant-voltage (4.2 V ±1%) charge current to the battery; battery leakage current < 3 µA in sleep mode or when VIN is below the UVLO threshold (2.65 V typ). |
| 4 | VIN | power_in | Supply voltage input, 4.5 V to 6.0 V; powers all internal circuits; CN3142 enters low-power sleep mode when VIN − VBAT < 10 mV and exits sleep when VIN − VBAT rises above 60 mV; quiescent current 280-500 µA (BAT open). |
| 5 | TEMP | input | Battery temperature monitor input; pin sources 30 µA (typ) through an external 10 kΩ NTC resistor to GND; charging suspends when VTEMP < 100 mV (over-hot) or > 850 mV (over-cold); charge current reduced to 50 % ICC when 100-135 mV (warm) or 25 % ICC when 550-850 mV (cool); connect fixed 10 kΩ to GND if temperature monitoring is not used. |
| 6 | ISET | passive | Constant-current set and charge-current monitor; connect resistor RISET from this pin to GND; ICH = 502 V / RISET (A, Ω); pin voltage regulated to 0.4 V (typ) in trickle mode and 1.205 V (typ) in CC mode, allowing current monitoring via ICH = (VISET × 417) / RISET; over-current protection shuts down the device if charge current exceeds 0.47 A (typ) for more than 2 ms (typ). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | ShangHai Consonance Elec |
| Package | SOT-23-6 |
| Category | Power Management (PMIC) |
| Pins | 6 |
CAD (KiCad official)
- Symbol:
CN3142 - Footprint:
Package_TO_SOT_SMD:SOT-23-6 - 3D model: SOT-23-6 (KiCad packages3D, STEP)
- 3D model files:
cn3142-etched.step/cn3142-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);cn3142.step/cn3142.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: ShangHai Consonance Elec datasheet (11 pp, sha256
bbc80ba3304aaf98, 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).