LM74500-Q1
- 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
- Device CDM ESD classification level C4B
- 3.2-V to 65-V input range (3.9-V start up)
- –65-V input reverse voltage rating
- Charge pump for external N-Channel MOSFET
- Enable pin feature
- 1-µA shutdown current (EN=Low)
- 80-µA typical operating quiescent current (EN=High)
- Meets automotive ISO7637 pulse 1 transient requirements with additional TVS Diode
- Available in 8-pin SOT-23 package 2.90 mm × 1.60 mm
The LM74500-Q1 is an automotive AEC Q100 qualified controller which operates in conjunction with an external N-channel MOSFET as a low loss reverse polarity protection solution. The wide supply input range of 3.2 V to 65 V allows control of many popular DC bus voltages such as 12-V, 24-V and 48-V automotive battery systems. The 3.2-V input voltage support is particularly well suited for severe cold crank requirements in automotive systems. The device can withstand and protect the loads from negative supply voltages down to –65 V. The LM74500-Q1 does not have reverse current blocking and is suitable for input reverse poalrity protection of loads that can potentially deliver energy back to the input supply such as automotive body control module motor loads.
The LM74500-Q1 controller provides a charge pump gate drive for an external N-channel MOSFET. The high voltage rating of LM74500-Q1 helps to simplify the system designs for automotive ISO7637 protection. With the enable pin low, the controller is off and draws approximately 1 µA of current thus offering low system current when put into sleep mode.
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技術文件
類型 | 標題 | 日期 | ||
---|---|---|---|---|
* | Data sheet | LM74500-Q1 Reverse Polarity Protection Controller datasheet | PDF | HTML | 2020年 12月 23日 |
Functional safety information | LM74500-Q1 Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA | PDF | HTML | 2024年 1月 18日 | |
Application note | Basics of Ideal Diodes (Rev. B) | PDF | HTML | 2021年 10月 5日 | |
User guide | LM74500-Q1 Evaluation Module | PDF | HTML | 2020年 12月 10日 | |
Certificate | LM74500Q1EVM EU RoHS Declaration of Conformity (DoC) | 2020年 12月 3日 | ||
White paper | 簡化汽車及工業領域的功 能安全認證 | 2020年 6月 9日 | ||
E-book | 11 Ways to Protect Your Power Path | 2019年 7月 3日 | ||
Application note | Basics of Power Switches (Rev. A) | PDF | HTML | 2019年 4月 26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)。
LM74500Q1EVM — LM74500-Q1 3.2-V 至 65V、80-μA IQ 反向極性保護控制器評估模組
The LM74500-Q1 evaluation module (LM74500Q1EVM) helps designers evaluate the operation and performance of the LM74500-Q1 reverse polarity protection controller. This evaluation module demonstrates how an N-channel power MOSFET can be used to realize input reverse voltage protection with low IQ (...)
LM74700DDFEVM — LM74700-Q1 3.2-V 至 65-V、80-μA IQ 車用理想二極體控制器 (DDF 封裝) 評估模組
The LM74700DDFEVM helps designers evaluate the operation and performance of the LM74700-Q1 3.2-V to 65-V, 80-μA IQ automotive ideal diode controller (DDF package). This evaluation module demonstrates how an N-channel power MOSFET can emulate a very-low forward voltage diode with low IQ and (...)
PSPICE-FOR-TI — PSpice® for TI 設計與模擬工具
封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
---|---|---|
SOT-23-THN (DDF) | 8 | Ultra Librarian |
訂購與品質
- RoHS
- REACH
- 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
- 認證摘要
- 進行中持續性的可靠性監測
- 晶圓廠位置
- 組裝地點
建議產品可能具有與此 TI 產品相關的參數、評估模組或參考設計。