SLUSFA1
September 2024
TPS1214-Q1
ADVANCE INFORMATION
1
1
Features
2
Applications
3
Description
4
Device Comparison
5
Pin Configuration and Functions
6
Specifications
6.1
Absolute Maximum Ratings
6.2
ESD Ratings
6.3
Recommended Operating Conditions
6.4
Thermal Information
6.5
Electrical Characteristics
6.6
Switching Characteristics
7
Parameter Measurement Information
8
Detailed Description
8.1
Overview
8.2
Functional Block Diagram
8.3
Feature Description
8.3.1
Charge Pump and Gate Driver Output (VS, GATE, BST, SRC)
8.3.2
Capacitive Load Driving
8.3.2.1
Using Low Power Bypass FET (G Drive) for Load Capacitor Charging
8.3.2.2
Using Main FET (GATE drive) Gate Slew Rate Control
8.3.3
Overcurrent and Short-Circuit Protection
8.3.3.1
I2t-Based Overcurrent Protection
8.3.3.1.1
I2t-Based Overcurrent Protection With Auto-Retry
8.3.3.1.2
I2t-Based Overcurrent Protection With Latch-Off
8.3.3.2
Short-Circuit Protection
8.3.4
Analog Current Monitor Output (IMON)
8.3.5
NTC based Temperature Sensing (TMP) and Analog Monitor Output (ITMPO)
8.3.6
Fault Indication and Diagnosis (FLT, SCP_TEST)
8.3.7
Reverse Polarity Protection
8.3.8
Undervoltage Protection (UVLO)
8.4
Device Functional Modes
8.4.1
State Diagram
8.4.2
State Transition Timing Diagram
8.4.3
Power Down
8.4.4
Shutdown Mode
8.4.5
Low Power Mode (LPM)
8.4.6
Active Mode (AM)
9
Application and Implementation
9.1
Application Information
9.2
Typical Application 1: Driving Power at all times (PAAT) Loads With Automatic Load Wakeup
9.2.1
Design Requirements
9.2.2
Detailed Design Procedure
9.2.3
Application Curves
9.3
Typical Application 2: Driving Power at all times (PAAT) Loads With Automatic Load Wakeup and Output Bulk Capacitor Charging
9.3.1
Design Requirements
9.3.2
External Component Selection
9.3.3
Application Curves
9.4
Power Supply Recommendations
9.5
Layout
9.5.1
Layout Guidelines
9.5.2
Layout Example
10
Device and Documentation Support
10.1
Device Support
10.2
Documentation Support
10.2.1
Related Documentation
10.3
Receiving Notification of Documentation Updates
10.4
Support Resources
10.5
Trademarks
10.6
Electrostatic Discharge Caution
10.7
Glossary
11
Revision History
12
Mechanical, Packaging, and Orderable Information
12.1
Tape and Reel Information
12.2
Mechanical Data
封装选项
机械数据 (封装 | 引脚)
RGE|23
MPQF802
散热焊盘机械数据 (封装 | 引脚)
订购信息
slusfa1_oa
1
Features
AEC-Q100 automotive qualified for grade 1 temperature
3.5V to 73V input range (74V absolute maximum)
Reverse input protection down to –65V
TPS12141-Q1 with reverse FET ON (–45V)
Integrated 12V charge pump
Low I
Q
= 20µA in low power mode (
LPM
= Low)
Low 1µA shutdown current (EN/UVLO = Low)
Dual gate drive: GATE: 0.5A source and 2A sink
G: 100μA source and 0.39A sink
Accurate I
2
t overcurrent protection (IOC) with adjustable circuit breaker timer (I
2
t)
Accurate and fast (5µs) short-circuit protection
Fast transition (5µs) from low power mode to active mode using adjustable load wakeup threshold or
LPM
trigger with WAKE indication
Accurate analog current monitor output (IMON): ±2% at 30mV V
SNS
NTC based overtemperature sensing (TMP) and monitoring output (ITMPO)
Fault indication (
FLT
) during short circuit fault, I
2
t, charge pump UVLO
TPS12142-Q1 (RPP turn OFF), TPS12143-Q1 (RPP turn ON) with I
2
t disabled
Accurate and adjustable undervoltage lockout (UVLO)
Short-circuit comparator diagnosis (SCP_TEST)
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