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HY2122 EB1A
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HYCON Tech HY2122 EB1A Battery Management, SOT-23-6. Pinout extracted from 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
markdownHY2122 EB1A
HYCON Tech · Battery Management · SOT-23-6
HY2122 EB1A from HYCON Tech, 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 | OD | output | Discharge-control MOSFET gate drive output. Drives the gate of the external N-MOSFET (M1) that controls the discharge current path; pulled low (V_DL ≤ 0.5V) to disable discharging when overdischarge or discharge overcurrent is detected, otherwise driven high (VDD-0.1V min). |
| 2 | OC | output | Charge-control MOSFET gate drive output. Drives the gate of the external N-MOSFET (M2) that controls the charge current path; pulled low (V_CL ≤ 0.5V) to disable charging when overcharge or charge overcurrent is detected, otherwise driven high (VDD-0.1V min). High-voltage tolerant (absolute max VDD-33 to VDD+0.3 V). |
| 3 | CS | input | Overcurrent-sense input and charger-detection terminal. Monitors the voltage across the external discharge/charge MOSFETs to detect discharge overcurrent (V_DIP=200mV), charge overcurrent (V_CIP=-200mV), and load short-circuit (V_SIP=1.0V typ.). High-voltage design tolerates VDD-33 to VDD+0.3 V so it can survive a reversed charger connection; typically connected to PB- through R3 (2kΩ). |
| 4 | VC | input | Middle-cell tap: connects to the negative terminal of battery 1 and the positive terminal of battery 2. Used by the internal detectors to monitor each cell voltage individually; typically connected through a 330Ω series resistor (R2) with a 0.1µF decoupling cap (C2) to VSS. |
| 5 | VDD | power_in | Positive supply input; connects to the positive terminal of battery 1 (pack +). VDD-VSS operating range 1.5V to 10V (absolute max VSS-0.3 to VSS+10V). Typically fed through a 330Ω series resistor (R1) with a 0.1µF decoupling cap (C1) to VSS. |
| 6 | VSS | power_in | Ground / negative supply input; connects to the negative terminal of battery 2 (bottom cell −). Serves as the reference for all internal detectors and MOSFET gate drivers. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | HYCON Tech |
| Package | SOT-23-6 |
| Category | PMIC |
| Pins | 6 |
Ordering variants
Same part, different packaging or reel option.
HY2122 EB1AHY2122 EB1AAB1AHY2122 EB1AAB1BHY2122 EB1ABB1A
CAD (KiCad official)
- Symbol:
HY2122 EB1A - Footprint:
Package_TO_SOT_SMD:SOT-23-6 - 3D model: SOT-23-6 (KiCad packages3D, STEP)
- 3D model files:
hy2122-eb1a-etched.step/hy2122-eb1a-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);hy2122-eb1a.step/hy2122-eb1a.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: HYCON Tech datasheet (20 pp, sha256
c26f84e2ed2575c5, retrieved 2026-08-17, 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:
ds2sf(Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate. - CAD: KiCad official libraries (CC-BY-SA 4.0).