ZHCSLG2B September 2021 – August 2022 LM74722-Q1
PRODUCTION DATA
- 1 特性
- 2 應(yīng)用
- 3 說明
- 4 Revision History
- 5 Pin Configuration and Functions
- 6 Specifications
- 7 Parameter Measurement Information
- 8 Detailed Description
-
9 Application and Implementation
- 9.1 Application Information
- 9.2
Typical 12-V Reverse Battery Protection Application
- 9.2.1 Design Requirements for 12-V Battery Protection
- 9.2.2
Detailed Design Procedure
- 9.2.2.1 Design Considerations
- 9.2.2.2 Boost Converter Components (C2, C3, L1)
- 9.2.2.3 Input and Output Capacitance
- 9.2.2.4 Hold-Up Capacitance
- 9.2.2.5 Overvoltage Protection and Battery Monitor
- 9.2.2.6 MOSFET Selection: Blocking MOSFET Q1
- 9.2.2.7 MOSFET Selection: Load Disconnect MOSFET Q2
- 9.2.2.8 TVS Selection
- 9.2.3 Application Curves
- 9.3 What to Do and What Not to Do
- 10Power Supply Recommendations
- 11Layout
- 12Device and Documentation Support
- 13Mechanical, Packaging, and Orderable Information
封裝選項(xiàng)
機(jī)械數(shù)據(jù) (封裝 | 引腳)
- DRR|12
散熱焊盤機(jī)械數(shù)據(jù) (封裝 | 引腳)
- DRR|12
訂購信息
9.2.3 Application Curves
Figure 9-7 Start-Up 12 V with EN
Pulled to VIN
Figure 9-9 Reverse Input Voltage –14
V for 60 s
Figure 9-11 Inrush Current with 60-Ω
Load
Figure 9-13 Output Turn-On with
Enable
Figure 9-15 PD Turn-On with
Enable
Figure 9-17 Overvoltage
Recovery
Figure 9-19 Turn-Off Delay –
GATE
Figure 9-8 Start-Up 12 V Showing
Boost Output (VCAP) and Switching (VLX)
Figure 9-10 Inrush Current with No
Load at Output
Figure 9-12 Hot-Plug into 12 V
Figure 9-14 GATE Turn-On with
Enable
Figure 9-16 Overvoltage
ProtectionFigure 9-18 Turn-On Delay – PD
Figure 9-20 Turn-Off Delay –
PD