TL431-Q1
- Qualified for automotive applications
- AEC-Q100 test guidance with the following:
- Device temperature grade 1: –40°C to 125°C ambient operating temperature range
- Reference voltage tolerance at 25°C:
- 1% (A Grade)
- 0.5% (B Grade)
- Typical temperature drift:
- 14 mV (Q Temp)
- Low output noise
- 0.2-Ω Typical output impedance
- Sink-current capability: 1 mA to 100 mA
- Adjustable output voltage: VREF to 36 V
The TL431LI-Q1 / TL432LI-Q1 are pin-to-pin alternatives to TL431-Q1 / TL432-Q1. TL43xLI-Q1 offers better stability, lower temperature drift (VI(dev)), and lower reference current (Iref) for improved system accuracy.
The TL431-Q1 is a three-pin adjustable shunt regulator with specified thermal stability over applicable automotive temperature ranges. The output voltage can be set to any value from VREF (approximately 2.5 V) to 36 V, with two external resistors (see Figure 28). This device has a typical output impedance of 0.2 Ω. Active output circuitry provides a sharp turnon characteristic, making this device an excellent replacement for Zener diodes in many applications, such as onboard regulation, adjustable power supplies, and switching power supplies.
The TL432-Q1 has exactly the same functionality and electrical specifications as the TL431-Q1 device, but has a different pinout for the DBZ package.
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檢視所有 6 | 類型 | 標題 | 日期 | ||
|---|---|---|---|---|
| * | Data sheet | TL431-Q1 / TL432-Q1 Adjustable Precision Shunt Regulator datasheet (Rev. G) | PDF | HTML | 2020年 5月 7日 |
| Analog Design Journal | High-power, low-cost, discrete linear pre-regulator for automotive rear lights | 2020年 12月 21日 | ||
| Functional safety information | TL43x-Q1 Functional Safety FIT Rate and Failure Mode Distribution | 2019年 12月 18日 | ||
| E-book | Voltage Supervisor and Reset ICs: Tips, Tricks and Basics | 2019年 6月 28日 | ||
| Application brief | Automotive LED Lighting with Adjustable Shunt References | 2018年 7月 17日 | ||
| Technical article | Using dual high-current op amps to drive automotive LED lights | PDF | HTML | 2015年 7月 20日 |
設計與開發
如需其他條款或必要資源，請按一下下方的任何標題以檢視詳細頁面 (如有)。
模擬型號
TL431 Family Unencrypted PSpice Transient and AC Model (Rev. B)
SLVM071B.ZIP (130 KB) - PSpice Model
模擬工具
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Design guide: PDF
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| 封裝 | 引腳 | 下載 |
|---|---|---|
| SOT-23 (DBV) | 5 | 檢視選項 |
| SOT-23 (DBZ) | 3 | 檢視選項 |
訂購與品質
內含資訊：
- RoHS
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- 產品標記
- 鉛塗層/球物料
- MSL 等級/回焊峰值
- MTBF/FIT 估算值
- 材料內容
- 資格摘要
- 進行中可靠性監測
內含資訊：
- 晶圓廠位置
- 組裝地點