計算工具
FET-INRUSH-SOA-CALC — FET SOA margin calculator for dvdt based startup
The design calculator allows user to estimate the FET SOA margin while starting up with dVdt based startup for inrush current control
LM74720-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-V to 65-V input range
- Reverse input protection down to –65 V
- Low quiescent current, 35 µA (max) in operation
- Low 3.3-µA (max) shutdown current (EN = Low)
- Ideal diode operation with 17-mV A to C forward voltage drop regulation
- Drives external back-to-back N-Channel MOSFETs
- Integrated 29-mA boost regulator
- Fast response to reverse current blocking: 0.5 µs
- Active rectification up to 100 kHz
- Adjustable overvoltage protection
- Meets automotive ISO7637 transient requirements with a suitable TVS diode
- Available in space saving 12-pin WSON package
- Pin-to-pin compatible with LM74721-Q1
The LM74720-Q1 ideal diode controller drives and controls external back-to-back N-Channel MOSFETs to emulate an ideal diode rectifier with power path ON/OFF control and overvoltage protection. The wide input supply of 3 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 ideal diode controller (GATE) drives the first MOSFET to replace a Schottky diode for reverse input protection and output voltage holdup. A strong boost regulator with fast turn ON and OFF comparators ensures robust and efficient MOSFET switching performance during automotive testing such as ISO16750 or LV124 where an ECU is subjected to input short interruptions and AC superimpose input signals up to 100-kHz frequency. Low Quiescent Current 35 µA (maximum) in operation enables always ON system designs. With a second MOSFET in the power path, the device allows load disconnect control using EN pin. Quiescent current reduces to 3.3 µA (maximum) with EN low. The device features an adjustable overvoltage cut-off protection feature for load dump protection.
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檢視所有 6 | 類型 | 標題 | 日期 | ||
|---|---|---|---|---|
| * | Data sheet | LM74720-Q1 Low IQ Automotive Ideal Diode Controller with Active Rectification and Load Dump Protection datasheet (Rev. B) | PDF | HTML | 2022年 3月 29日 |
| Technical article | 3 ways to design a low quiescent-current (Iq) automotive reverse battery protectio | PDF | HTML | 2021年 11月 18日 | |
| Application note | Basics of Ideal Diodes (Rev. B) | PDF | HTML | 2021年 10月 5日 | |
| Application brief | Active Rectification and its Advantages in Automotive ECU Designs | PDF | HTML | 2021年 9月 29日 | |
| User guide | LM7472EVM: Evaluation Module for LM74720-Q1 & LM74722-Q1 Ideal Diode Controllers | PDF | HTML | 2021年 9月 15日 | |
| Analog Design Journal | Automotive EMC-compliant reverse-battery protection with ideal-diode controllers | 2020年 9月 22日 |
設計與開發
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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 | 引腳 | 下載 |
|---|---|---|
| WSON (DRR) | 12 | 檢視選項 |
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
- 資格摘要
- 進行中可靠性監測
內含資訊：
- 晶圓廠位置
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