JAJSHW4
September 2019
LM74202-Q1
PRODUCTION DATA.
1
特長
2
アプリケーション
3
概要
Device Images
概略回路図
12V での ISO16750-2 ロードダンプ・パルス 5b 性能
4
改訂履歴
5
Pin Configuration and Functions
Pin Functions
6
Specifications
6.1
Absolute Maximum Ratings
6.2
ESD Ratings
6.3
Recommended Operating Conditions
Table 1.
Thermal Information
6.4
Electrical Characteristics
6.5
Timing Requirements
6.6
Typical Characteristics
7
Parameter Measurement Information
8
Detailed Description
8.1
Overview
8.2
Functional Block Diagram
8.3
Feature Description
8.3.1
Undervoltage Lockout (UVLO)
8.3.2
Overvoltage Protection (OVP)
8.3.3
Reverse Battery Protection
8.3.4
Hot Plug-In and In-Rush Current Control
8.3.5
Overload and Short Circuit Protection
8.3.5.1
Overload Protection
8.3.5.1.1
Active Current Limiting
8.3.5.1.2
Electronic Circuit Breaker with Overload Timeout, MODE = OPEN
8.3.5.2
Short Circuit Protection
8.3.5.2.1
Start-Up With Short-Circuit On Output
8.3.5.3
FAULT Response
8.3.5.3.1
Look Ahead Overload Current Fault Indicator
8.3.5.4
Current Monitoring
8.3.5.5
IN, OUT, RTN and GND Pins
8.3.5.6
Thermal Shutdown
8.3.5.7
Low Current Shutdown Control (SHDN)
8.4
Device Functional Modes
9
Application and Implementation
9.1
Application Information
9.2
Typical Application
9.2.1
Design Requirements
9.2.2
Detailed Design Procedure
9.2.2.1
Step by Step Design Procedure
9.2.2.2
Setting Undervoltage Lockout and Overvoltage Set Point for Operating Voltage Range
9.2.2.3
Programming the Current-Limit Threshold—R(ILIM) Selection
9.2.2.4
Programming Current Monitoring Resistor—RIMON
9.2.2.5
Limiting the Inrush Current
9.2.2.5.1
Selection of Input TVS for Transient Protection
9.2.3
Application Curves
10
Power Supply Recommendations
10.1
Transient Protection
11
Layout
11.1
Layout Guidelines
11.2
Layout Example
12
デバイスおよびドキュメントのサポート
12.1
ドキュメントのサポート
12.1.1
関連資料
12.2
ドキュメントの更新通知を受け取る方法
12.3
コミュニティ・リソース
12.4
商標
12.5
静電気放電に関する注意事項
12.6
Glossary
13
メカニカル、パッケージ、および注文情報
パッケージ・オプション
メカニカル・データ(パッケージ|ピン)
PWP|16
MPDS371A
サーマルパッド・メカニカル・データ
PWP|16
PPTD333C
発注情報
jajshw4_oa
6.6
Typical Characteristics
T
A
= 25 °C, V
(IN)
= 12 V, V
(
SHDN
)
= 2 V, R
(ILIM)
= 120 kΩ, IMON =
FLT
= OPEN, C
(IN)
= 0.1 μF, C
(OUT)
= 1 μF, C
(dVdT)
= OPEN. (Unless otherwise noted)
Figure 1.
POR Threshold (V
POR
) vs Temperature
Figure 3.
Supply Current OFF (IQ
OFF
) vs Supply Voltage (V
IN
)
Figure 5.
OVP Thresholds (V
OVPR
, V
OVPF
) vs Temperature
Figure 7.
I
LIM
vs R
ILIM
Figure 9.
I
LIM
Accuracy vs Temperature with V
IN
= 12 V
Figure 11.
I
MON
vs I
OUT
V
(OUT)
= 24 V
V
(IN)
= 0 V
V
SHDN
= 0 V
Figure 13.
I
lkg(OUT)
vs Temperature with V
IN
= 0 V
Figure 15.
V
REVTH
vs Temperature
Figure 17.
I
LIM
Accuracy vs Temperature with V
IN
= 24 V
Figure 2.
Supply Current ON (IQ
ON
) vs Supply Voltage (V
IN
)
Figure 4.
UVLO Thresholds (V
UVLOR
, V
UVLOF
) vs Temperature
Figure 6.
GAIN
(dVdT)
vs Temperature
T
A
= -40 to 125 °C
Figure 8.
I
LIM
Accuracy vs Supply Voltage
Figure 10.
GAIN
(IMON)
vs Temperature
Figure 12.
R
ON
vs Temperature
V
(OUT)
= 0 V
V
(IN)
= –24 V
V
SHDN
= 0 V
Figure 14.
I
lkg(OUT)
vs Temperature with V
IN
= –24 V
Figure 16.
V
FWDTH
vs Temperature
Taken on 2-layer PCB with 0.07-mm thick copper and copper area of 10.5 cm
2
connected to PowerPAD.
Figure 18.
Thermal Shutdown Time vs Power Dissipation