計算工具
LM74930-CALC — Design calculator for LM74930-Q1 ideal diode controller
The design calculator allows user to size the external peripheral components while designing with LM74930-Q1 ideal diode controller
LM74930-Q1
- AEC-Q100 qualified for automotive applications
- Device temperature grade 1: –40°C to +125°C ambient operating temperature range
- 4-V to 65-V input range
- Reverse input protection down to –65 V
- Drives external back-to-back N-Channel MOSFETs in common source configuration
- Ideal diode operation with 10.5-mV A to C forward voltage drop regulation
- Low reverse detection threshold (–10.5 mV) with fast DGATE turn-off response (0.5 µs)
- 18-mA peak gate (DGATE) turn on current
- 2.6-A peak DGATE turn-off current
- Adjustable overcurrent and short circuit protection
- Analog current monitor output with 10% accuracy (IMON)
- Adjustable overvoltage and undervoltage protection
- Low 2.5-µA shutdown current (EN=Low)
- MODE pin to allow bi-directional current flow (MODE=Low)
- Meets automotive ISO7637 transient requirements with a suitable TVS diode
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Available in space saving 24-pin VQFN package
The LM74930-Q1 ideal diode controller drives and controls external back to back N-Channel MOSFETs to emulate an ideal diode rectifier and power path ON and OFF control with over current and overvoltage protection. The wide input supply of 4 V to 65 V allows protection and control of 12-V and 24-V automotive battery powered ECUs. The device can withstand and protect the loads from negative supply voltages down to –65 V. An integrated high side gate control (HGATE) drives the first MOSFET in the power path. The device allows load disconnect (ON and OFF control) in case of overcurrent, overvoltage and undervoltage event using HGATE control while ideal diode controller (DGATE) drives a second MOSFET to replace a Schottky diode for input reverse polarity protection and output voltage holdup by blocking the reverse current from output to input. The device has integrated current sense amplifier which provides with an adjustable overcurrent and short circuit protection with circuit breaker functionality. The device features an adjustable overvoltage and undervoltage protection feature to protect against supply transients. LM74930-Q1 features MODE pin which can be used to selectively enable or disable reverse current blocking functionality.
技術文件
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檢視所有 5 | 類型 | 標題 | 日期 | ||
|---|---|---|---|---|
| * | Data sheet | LM74930-Q1 Automotive Ideal Diode Surge Stopper With Circuit Breaker, Overvoltage Protection, and Fault Output datasheet | PDF | HTML | 2023年 10月 31日 |
| Functional safety information | LM74930-Q1 Functional Safety FIT Rate, FMD and Pin FMA | PDF | HTML | 2024年 10月 16日 | |
| Application brief | Protection against Unsuppressed Load Dump in Automotive Systems using LM74930-Q1 | PDF | HTML | 2023年 11月 14日 | |
| EVM User's guide | LM74930-Q1 Evaluation Module for Ideal Diode Controller User's Guide | PDF | HTML | 2023年 11月 1日 | |
| Certificate | LM74930Q1EVM EU Declaration of Conformity (DoC) | 2023年 10月 5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)。
開發板
LM74930Q1EVM — 適用於具有斷路器的 3-V 至 65-V 突波抑制器的 LM74930-Q1 評估模組
在反向電池保護應用中，LM74930-Q1 評估模組 (EVM) 是一個可評估 LM74930-Q1 理想二極體控制器的運作及性能的平台。LM74930Q1EVM 可展示 LM74930-Q1 如何控制兩個背對背 N 通道功率 MOSFET，以模擬具有突波抑制器、斷路器和過電壓防護的理想二極體整流器。
模擬工具
PSPICE-FOR-TI — PSpice® for TI 設計與模擬工具
PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| VQFN (RGE) | 24 | Ultra Librarian |
訂購與品質
內含資訊：
- 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
內含資訊：
- 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。