LM4132-Q1
- Qualified for Automotive Applications
- AEC-Q100 Qualified With the Following Results:
- Device Temperature Grade 1: –40°C to +125°C Ambient Operating Temperature Range
- Device HBM ESD Classification Level 2
- Output Initial Voltage Accuracy: 0.05%
- Low Temperature Coefficient: 10 ppm/°C
- Low Supply Current: 60 µA
- Enable Pin Allowing a 3-µA Shutdown Mode
- 20-mA Output Current
- Voltage Options: 1.8 V, 2.048 V, 2.5 V, 3 V, 3.3 V, 4.096 V
- Custom Voltage Options Available (1.8 V to 4.096 V)
- VIN Range of VREF + 400 mV to 5.5 V at 10 mA
- Stable With Low-ESR Ceramic Capacitors
The LM4132 family of precision voltage references performs comparable to the best laser-trimmed bipolar references, but in cost-effective CMOS technology. The key to this breakthrough is the use of EEPROM registers for correction of curvature, temperature coefficient (tempco), and accuracy on a CMOS band-gap architecture allowing package-level programming to overcome assembly shift. The shifts in voltage accuracy and tempco during assembly of die into plastic packages limit the accuracy of references trimmed with laser techniques.
Unlike other LDO references, the LM4132 can deliver up to 20 mA and does not require an output capacitor or buffer amplifier. These advantages along with the SOT-23 packaging are important for space-critical applications.
Series references provide lower power consumption than shunt references, because they do not have to idle the maximum possible load current under no-load conditions. This advantage, the low quiescent current (60 µA), and the low dropout voltage (400 mV) make the LM4132 ideal for battery-powered solutions.
The LM4132 is available in five grades (A, B, C, D and E) for greater flexibility. The best grade devices (A) have an initial accuracy of 0.05% with a specified temperature coefficient of 10 ppm/°C or less, while the lowest grade devices (E) have an initial accuracy of 0.5% and a tempco of 30 ppm/°C.
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技术文档
| 顶层文档 | 类型 | 标题 | 格式选项 | 下载最新的英语版本 | 日期 | |
|---|---|---|---|---|---|---|
| * | 数据表 | LM4132, LM4132-Q1 SOT-23 Precision Low Dropout Voltage Reference 数据表 (Rev. G) | PDF | HTML | 2016-10-13 | ||
| 应用手册 | 关于数据转换器的基准电压选择和设计提示 (Rev. B) | PDF | HTML | 英语版 (Rev.B) | PDF | HTML | 2024-1-10 | |
| 电子书 | Tips and tricks for designing with voltage references (Rev. A) | 2021-5-7 | ||||
| 功能安全信息 | LM4132-Q1 Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA (Rev. A) | PDF | HTML | 2020-10-27 | |||
| 电子书 | 电压监测仪和电压检测器：提示、技巧和基础知识 | 英语版 | 2019-8-28 | |||
| 技术文章 | How voltage references and supervisors help achieve ASIL functional safety goals | PDF | HTML | 2019-5-10 | |||
| 白皮书 | Voltage reference selection basics white paper (Rev. A) | 2018-10-23 | ||||
| 技术文章 | Speeding through the ADAS market 0-60 | PDF | HTML | 2015-12-7 |
设计与开发
如需其他信息或资源，请点击以下任一标题进入详情页面查看（如有）。
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借助 DIP-Adapter-EVM 加快运算放大器的原型设计和测试，该 EVM 有助于快速轻松地连接小型表面贴装 IC 并且价格低廉。您可以使用随附的 Samtec 端子板连接任何受支持的运算放大器，或者将这些端子板直接连接至现有电路。
DIP-Adapter-EVM 套件支持六种常用的业界通用封装，包括：
- D 和 U (SOIC-8)
- PW (TSSOP-8)
- DGK（MSOP-8、VSSOP-8）
- DBV（SOT23-6、SOT23-5 和 SOT23-3）
- DCK（SC70-6 和 SC70-5）
- DRL (SOT563-6)
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TIDA-050008 — 具有更强电压监控功能的 ADAS 电源参考设计
本汽车电源参考设计支持额外的高精度电压监控功能和窗口看门狗，可用于高级驾驶辅助系统 (ADAS) 中的安全 MCU。这些 ADAS 系统可以控制驾驶功能，例如自动紧急刹车、车道保持辅助和自适应巡航控制。高精度电压探测器会同时监控每条电压轨，监控能力更强，可以帮助客户实现功能性安全目标。
| 封装 | 引脚 | CAD 符号、封装和 3D 模型 |
|---|---|---|
| SOT-23 (DBV) | 5 | Ultra Librarian |