SLVSCZ3
March 2015
TPS24770
,
TPS24771
,
TPS24772
PRODUCTION DATA.
1
Features
2
Applications
3
Description
4
Simplified Schematic
5
Revision History
6
Device Comparison Table
7
Pin Configuration and Functions
8
Specifications
8.1
Absolute Maximum Ratings
8.2
ESD Ratings
8.3
Recommended Operating Conditions
8.4
Thermal Information
8.5
Electrical Characteristics
8.6
Timing Requirements
8.7
Typical Characteristics
9
Detailed Description
9.1
Overview
9.2
Functional Block Diagram
9.3
Feature Description
9.3.1
Enable and Over-voltage Protection
9.3.2
Current Limit and Power Limit during Start-up
9.3.3
Two Level Protection During Regular Operation
9.3.4
Dual Timer (TFLT and TINR)
9.3.5
3 Options for Response to a Fast Trip
9.3.6
Using Soft Start - IHGATE and TINR Considerations
9.3.7
Analog Current Monitor
9.3.8
Power Good Flag
9.3.9
Fault Reporting
9.4
Device Functional Modes
9.4.1
Hot Swap Functional Modes
10
Application and Implementation
10.1
Application Information
10.2
Typical Application
10.2.1
12 V, 100 A, 5,500 µF Analog Hot Swap Design
10.2.2
Design Requirements
10.2.3
Detailed Design Procedure
10.2.3.1
Select RSNS and VSNS,CL Setting
10.2.3.2
Selecting the Fast Trip Threshold and Filtering
10.2.3.3
Selecting the Hot Swap FET(s)
10.2.3.4
Select Power Limit
10.2.3.5
Set Fault Timer
10.2.3.6
Check MOSFET SOA
10.2.3.7
Choose Under Voltage and Over Voltage Settings
10.2.3.8
Selecting C1 and COUT
10.2.3.9
Adding CENHS
10.2.3.10
Selecting D1 and D2
10.2.3.11
Checking Stability
10.2.3.12
Compute Tolerances
10.2.4
Application Curves
10.2.5
240 VA Application Using CSD16415Q5B
10.2.5.1
Design Requirements
10.2.5.2
Theory of Operations
10.2.5.3
Design Procedure
10.2.5.3.1
Select VSNS,CL, RSNS, and RSET Setting
10.2.5.3.1.1
Select RPOW and RIMON
10.2.5.3.1.2
Selecting the Hot Swap FET(s)
10.2.5.3.1.3
Keeping MOSFET within SOA During Normal Start-up
10.2.5.3.1.4
Choose Fault Timer
10.2.5.3.1.5
Choose Under Voltage and Over Voltage Settings
10.2.5.3.1.6
Selecting CIN and COUT
10.2.5.3.1.7
Selecting D1 and D2
10.2.5.3.1.8
Adding CENHS
10.2.5.3.1.9
Stability Considerations
10.2.5.4
Application Curves
10.2.6
240 VA Application Using CSD17573Q5B
10.2.6.1
Design Requirements
10.2.6.1.1
Choosing C1, COUT, CFLT, CENHS, D1, D2, RSET, RPOW, RIMON, RSNS, CDVDT, RPLIM, and UV/OV Thresholds
10.2.6.1.2
Selecting the Hot Swap FET(s)
10.2.6.1.3
Keeping the MOSFET within SOA
10.2.6.2
Q2 Selection
10.2.6.3
Application Curves
11
Power Supply Recommendations
12
Layout
12.1
Layout Guidelines
12.2
Layout Example
13
Device and Documentation Support
13.1
Related Links
13.2
Trademarks
13.3
Electrostatic Discharge Caution
13.4
Glossary
14
Mechanical, Packaging, and Orderable Information
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)
RGE|24
MPQF124G
サーマルパッド・メカニカル・データ
RGE|24
QFND008AA
発注情報
slvscz3_oa
slvscz3_pm
6 Device Comparison Table
PART NUMBER
(1)
LATCH / RETRY OPTION
TPS24770
Latch
TPS24771
Auto – Retry
TPS24772
Fast Latch Off
(1) For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI web site at
www.ti.com
.