component
TL432LIAEDBZRQ1
Public Made by Adomby adom
Texas Instruments Voltage Reference, SOT-23-3. 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
markdownTL432LIAEDBZRQ1
Texas Instruments · Voltage Reference · SOT-23-3
TL432LIAEDBZRQ1 from Texas Instruments, in a SOT-23-3. 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 | REF | input | Threshold relative to common anode; the reference pin cannot be left floating and needs IREF ≥ 0.4 µA, with reference input current limited to -5 mA to 10 mA (absolute maximum). |
| 2 | CATHODE | bidirectional | Shunt current/voltage input; cathode voltage is 36 V maximum (37 V absolute maximum) and cathode current IKA is specified from 0.6 mA to 15 mA (recommended), with -10 mA to 18 mA as the continuous absolute-maximum range. |
| 3 | ANODE | power_in | Common pin, normally connected to ground; all voltages are referenced to ANODE. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOT-23-3 |
| Category | Power Management (PMIC) |
| Pins | 3 |
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 voltage | Vref | 2470 | 2495 | 2520 | mV | VKA = Vref, IKA = 1 mA; TL43xLIAx devices | 5 |
| Deviation of reference input voltage over full temperature range | VI(dev) | 14 | 34 | mV | VKA = Vref, IKA = 1 mA; TL43xLIxE devices | 5 | |
| Ratio of change in reference voltage to change in cathode voltage | dVref/dVKA | -1.4 | -2.7 | mV/V | IKA = 1 mA; dVKA = 10 V - Vref | 5 | |
| Ratio of change in reference voltage to change in cathode voltage | dVref/dVKA | -1 | -2 | mV/V | IKA = 1 mA; dVKA = 36 V - 10 V | 5 | |
| Reference input current | Iref | 0.2 | 0.4 | µA | IKA = 1 mA, R1 = 10kΩ, R2 = ∞ | 5 | |
| Deviation of reference input current over full temperature range | II(dev) | 0.1 | 0.3 | µA | IKA = 1 mA, R1 = 10kΩ, R2 = ∞ | 5 | |
| Minimum cathode current for regulation | Imin | 0.6 | mA | VKA = Vref | 5 | ||
| Off-state cathode current | Ioff | 0.1 | 1 | µA | VKA = 36 V, Vref = 0 | 5 | |
| Dynamic impedance | /ZKA/ | 0.3 | 0.75 | Ω | VKA = Vref, IKA = 1 mA to 15 mA | 5 | |
| Cathode voltage | VKA | 36 | V | Minimum is VREF as printed | 4 | ||
| Continuous cathode current range | IKA | 0.6 | 15 | mA | 4 | ||
| Operating free-air temperature | TA | -40 | 150 | C | TL43xLIxE (grade 0) | 4 | |
| Cathode voltage | VKA | 37 | V | Voltages with respect to ANODE | 4 | ||
| Continuous cathode current range | IKA | -10 | 18 | mA | 4 | ||
| Reference input current | II(ref) | -5 | 10 | mA | 4 | ||
| Operating junction temperature range | TJ | -40 | 150 | C | 4 | ||
| Storage temperature range | Tstg | -65 | 150 | C | 4 | ||
| Junction-to-ambient thermal resistance | RθJA | 371.7 | C/W | DBZ, 3 pins | 4 | ||
| Junction-to-case (top) thermal resistance | RθJC(top) | 145.9 | C/W | DBZ, 3 pins | 4 | ||
| Junction-to-board thermal resistance | RθJB | 104.7 | C/W | DBZ, 3 pins | 4 | ||
| Junction-to-top characterization resistance | ψJT | 23.9 | C/W | DBZ, 3 pins | 4 | ||
| Junction-to-board characterization resistance | ψJB | 102.9 | C/W | DBZ, 3 pins | 4 |
CAD (KiCad official)
- Symbol:
TL432LIAEDBZRQ1 - Footprint:
Package_TO_SOT_SMD:SOT-23-3 - 3D model: SOT-23-3 (KiCad packages3D, STEP)
- 3D model files:
tl432liaedbzrq1-etched.step/tl432liaedbzrq1-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);tl432liaedbzrq1.step/tl432liaedbzrq1.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (35 pp, sha256
05850016b6d74f2c, retrieved 2026-11-05, 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).