LMP8480-Q1
- Qualified for Automotive Applications
- AEC-Q100 Qualified With the Following Results:
- Device Temperature Grade 1: –40°C to 125°C Ambient Operating Temperature
- Device HBM ESD Classification Level 2
- Device CDM ESD Classification Level C6
- Bidirectional or Unidirectional Sensing
- Common Mode Voltage Range: 4.0 V to 76 V
- Supply Voltage Range: 4.5 V to 76 V
- Fixed Gains: 20, 60, and 100 V/V
- Gain Accuracy: ±0.1%
- Offset: ±80 µV
- Bandwidth (–3 dB): 270 kHz
- Quiescent Current: < 100 µA
- Buffered High-Current Output: > 5 mA
- Input Bias Current: 7 µA
- PSRR (DC): 122 dB
- CMRR (DC): 124 dB
The automotive-qualified LMP8480-Q1 and LMP8481-Q1 devices are precision, high-side, current-sense amplifiers that amplify a small differential voltage developed across a current-sense resistor in the presence of high input common-mode voltages. These amplifiers are designed for bidirectional (LMP8481-Q1) or unidirectional (LMP8480-Q1) current applications and accept input signals with a common-mode voltage range from 4 V to 76 V with a bandwidth of 270 kHz. Because the operating power-supply range overlaps the input common-mode voltage range, the LMP848x-Q1 can be powered by the same voltage that is being monitored. This benefit eliminates the need for an intermediate supply voltage to be routed to the point of load where the current is being monitored, resulting in reduced component count and board space.
The LMP848x-Q1 family consists of fixed gains of 20, 60, and 100 for applications that demand high accuracy over temperature. The low-input offset voltage allows the use of smaller sense resistors without sacrificing system error. The LMP8480-Q1 and LMP8481-Q1 are pin-for-pin replacements for the MAX4080 and MAX4081 devices, offering improved offset voltage, wider reference adjust range, and higher output drive capabilities. The LMP8480-Q1 and LMP8481-Q1 are available in an 8-pin VSSOP package.
技术文档
类型 | 标题 | 下载最新的英语版本 | 日期 | |||
---|---|---|---|---|---|---|
* | 数据表 | LMP848x-Q1 Automotive, 76-V, High-Side, High-Speed, Current-Sense Amplifier 数据表 (Rev. A) | PDF | HTML | 2017年 2月 24日 | ||
应用手册 | 将印刷电路板覆铜线迹用作电流检测 分流电阻器 | PDF | HTML | 英语版 | PDF | HTML | 2022年 6月 8日 | |
用户指南 | LMP8480EVM Current Shunt Monitors Guide (Rev. A) | 2013年 3月 19日 |
设计和开发
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)。
LMP848XMMEVM-X — LMP8480 和 LMP8481 评估工具
米6体育平台手机版_好二三四 (TI) 的 LMP8480/81 评估模块 (EVM) 可帮助设计人员快速评估 LMP8480/81 76V 精密高侧电流感应放大器的操作和性能。EVM 可随时通过板载终端与电源、负载和测试仪表相连。
EVM 包含一个 LMP8480 或 LMP8481 高侧评估电路。EVM 在出厂时已预先装配好,安装了 LMP8480/81 器件、0.1O 感应电阻器、旁路电容器和连接终端。双向 EVM 包含 JP1 和 JP2 参考跳线和终端。
CIRCUIT060035 — 具有窗口比较器的双向电流检测电路
CIRCUIT060037 — 精密过流锁存电路
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借助 PSpice for TI 的设计和仿真环境及其内置的模型库,您可对复杂的混合信号设计进行仿真。创建完整的终端设备设计和原型解决方案,然后再进行布局和制造,可缩短米6体育平台手机版_好二三四上市时间并降低开发成本。
在 PSpice for TI 设计和仿真工具中,您可以搜索 TI (...)
TINA-TI — 基于 SPICE 的模拟仿真程序
TINA-TI 安装需要大约 500MB。直接安装,如果想卸载也很容易。我们相信您肯定会爱不释手。
TINA 是米6体育平台手机版_好二三四 (TI) 专有的 DesignSoft 米6体育平台手机版_好二三四。该免费版本具有完整的功能,但不支持完整版 TINA 所提供的某些其他功能。
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TIDA-00302 — 具有瞬态鲁棒性的电流分流监控器参考设计
此外,还采用外部保护电路来提供浪涌保护和快速瞬变保护并展示基于 IEC61000-4-4 和 IEC61000-4-5 的不同抗扰度。
封装 | 引脚 | CAD 符号、封装和 3D 模型 |
---|---|---|
VSSOP (DGK) | 8 | Ultra Librarian |
订购和质量
- RoHS
- REACH
- 器件标识
- 引脚镀层/焊球材料
- MSL 等级/回流焊峰值温度
- MTBF/时基故障估算
- 材料成分
- 鉴定摘要
- 持续可靠性监测
- 制造厂地点
- 封装厂地点