TL431BIDBZR
UMW · Analog ICs
VerifiedFAE reviewed
| Parameter | TL431BIDBZR | TL431BIDBZR | Engineering note |
|---|---|---|---|
| Reference voltage at 25 °C | 2.483 V to 2.507 V | 2.488 V to 2.512 V | Both are 0.5% B-grade limits, but the target's specified window is shifted upward by 5 mV. |
| Minimum cathode current for regulation | 0.4 mA typical, 0.7 mA maximum | 0.45 mA typical, 1.0 mA maximum | Low-bias or low-current designs must confirm that the target remains in regulation. |
| Operating temperature range | -40 °C to +85 °C for the exact I-grade order code | -40 °C to +125 °C | The target covers the source temperature range. |
FAE documentary review accepted: both exact order codes are 0.5% TL431 regulators in SOT-23-3. The source and target documents both specify pin 1 CATHODE, pin 2 REF and pin 3 ANODE. Reference input current is 2 uA typical / 4 uA maximum and dynamic impedance is 0.2 ohm typical / 0.5 ohm maximum on both. The target is rated over a wider temperature range, while its maximum minimum-cathode-current specification is higher. Document review only; not bench, reliability or production qualified.
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