component
NCV431AIDR2G
Public Made by Adomby adom
onsemi Voltage Reference, SOIC-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
markdownNCV431AIDR2G
onsemi · Voltage Reference · SOIC-8
NCV431AIDR2G from onsemi, in a SOIC-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 | Cathode | passive | Cathode (K) of the shunt regulator; sinks 1.0 mA to 100 mA with VKA from Vref up to 36 V. |
| 2 | Anode | power_in | Anode (A), the reference ground; electrically common to the die attach flag in the modified SOIC-8. |
| 3 | Anode | power_in | Anode (A), the reference ground; electrically common to the die attach flag in the modified SOIC-8. |
| 4 | N/C | unconnected | No connection. |
| 5 | N/C | unconnected | No connection. |
| 6 | Anode | power_in | Anode (A), the reference ground; electrically common to the die attach flag in the modified SOIC-8. |
| 7 | Anode | power_in | Anode (A), the reference ground; electrically common to the die attach flag in the modified SOIC-8. |
| 8 | Reference | input | Reference (R) input of the programmable shunt regulator, set with two external resistors; Iref is rated -0.05 to +10 mA. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | onsemi |
| Package | SOIC-8 |
| Category | Power Management (PMIC) |
| Pins | 8 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Reference input voltage Vref, TA = 25°C | Vref | 2.47 | 2.495 | 2.52 | V | VKA = Vref, IK = 10 mA, TA = 25°C | 4 |
| Reference input voltage Vref, TA = Tlow to Thigh | Vref | 2.44 | 2.55 | V | VKA = Vref, IK = 10 mA, TA = Tlow to Thigh | 4 | |
| Reference input voltage deviation over temperature range | Vref | 7 | 30 | mV | VKA = Vref, IK = 10 mA | 4 | |
| Ratio of change in reference input voltage to change in cathode-anode voltage (VKA 10 V to Vref) | Vref/VKA | -1.4 | -2.7 | mV/V | IK = 10 mA, VKA = 10 V to Vref | 4 | |
| Ratio of change in reference input voltage to change in cathode-anode voltage (VKA 36 V to 10 V) | Vref/VKA | -1 | -2 | mV/V | IK = 10 mA, VKA = 36 V to 10 V | 4 | |
| Reference input current, TA = 25°C | Iref | 1.8 | 4 | uA | IK = 10 mA, R1 = 10 k, R2 = ∞, TA = 25°C | 4 | |
| Reference input current, TA = Tlow to Thigh | Iref | 6.5 | uA | IK = 10 mA, R1 = 10 k, R2 = ∞, TA = Tlow to Thigh | 4 | ||
| Reference input current deviation over temperature range | Iref | 0.8 | 2.5 | uA | IK = 10 mA, R1 = 10 k, R2 = ∞ | 4 | |
| Minimum cathode current for regulation | Imin | 0.5 | 1 | mA | VKA = Vref | 4 | |
| Off-state cathode current | Ioff | 20 | 1000 | nA | VKA = 36 V, Vref = 0 V | 4 | |
| Dynamic impedance | /ZKA/ | 0.22 | 0.5 | ohm | VKA = Vref, IK = 1.0 mA to 100 mA, f ≤ 1.0 kHz | 4 | |
| Cathode to anode voltage (absolute maximum) | VKA | 37 | V | 2 | |||
| Cathode current range, continuous | IK | -100 | 150 | mA | 2 | ||
| Reference input current range, continuous | Iref | -0.05 | 10 | mA | 2 | ||
| Operating junction temperature | TJ | 150 | °C | 2 | |||
| Operating ambient temperature range (NCV431AI row) | TA | -40 | 125 | °C | NCV431AI, NCV431B, TL431BV, SCV431AI row | 2 | |
| Storage temperature range | Tstg | -65 | 150 | °C | 2 | ||
| Total power dissipation, D package | PD | 0.7 | W | TA = 25°C, D, LP suffix plastic package | 2 | ||
| Total power dissipation, D package | PD | 1.5 | W | TC = 25°C, D, LP suffix plastic package | 2 | ||
| ESD Human Body Model | HBM | 2000 | V | JEDEC JESD22-A114F; printed as >2000 | 2 | ||
| ESD Machine Model | MM | 200 | V | JEDEC JESD22-A115C; printed as >200 | 2 | ||
| ESD Charged Device Model | CDM | 500 | V | JEDEC JESD22-C101E; printed as >500 | 2 | ||
| Cathode to anode voltage (recommended operating) | VKA | 36 | V | 2 | |||
| Cathode current (recommended operating) | IK | 1 | 100 | mA | 2 | ||
| Thermal resistance, junction-to-ambient, D package | RJA | 178 | °C/W | D, LP suffix package | 3 | ||
| Thermal resistance, junction-to-case, D package | RJC | 83 | °C/W | D, LP suffix package | 3 |
CAD (KiCad official)
- Symbol:
NCV431AIDR2G - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files:
ncv431aidr2g-etched.step/ncv431aidr2g-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ncv431aidr2g.step/ncv431aidr2g.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: onsemi datasheet (22 pp, sha256
c82bb95655b732ca, retrieved 2026-10-30, tier: manufacturer) - 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).