TPS653850A-Q1, TPS653852A-Q1
SLVSF96A – JTANPUSA6R5Y32805200A–-RQE1V,ISTEPDSF6EB5R3U8A5R2YA2-Q0211
SLVSF96A – JANUARY 2020 – REVISED FEBRUARY 2021
www.ti.com
TPS653850A-Q1 and TPS653852A-Q1 Multirail Power Supply for Microcontrollers in
Safety-Relevant Applications
– Voltage Monitoring Circuitry, Including
1 Features
Independent Bandgap Reference, Supplied
•
AEC-Q100 Qualified with the Following Results:
– Device Temperature Grade 1: –40°C to +125°C
Ambient Operating Temperature
from Separate Battery Voltage Input Pin
– Self-Check on All Voltage Monitoring (During
Power-Up and After Power-Up Initiated by
External MCU)
– All Supplies Protected with Current Limit and
Overtemperature Prewarning and Shutdown
Microcontroller Interface
– Device HBM ESD Classification Level 2
– Device CDM ESD Classification Level C4B
Functional Safety-Compliant
•
•
– Developed for Functional Safety Applications
– Documentation Available to Aid ISO 26262
System Design up to ASIL D
– Open and Close Window or Question-Answer
Watchdog Function
– Monitor for Functional Safety MCU Fault output
(PWM or level), MCU Error-Signal Monitor
– DIAGNOSTIC state for Performing Device Self-
Tests and System Diagnostics
– SAFE State for Device and System Protection
upon Detected System Failure
– Clock Monitor for Internal Oscillator
– Analog and Logic Built-In Self-Test
– CRC on Non-Volatile Memory as well as Device
and System Configuration Registers and SPI
Communications
– Reset Circuit for MCU
– Diagnostic Output Pin
SPI With CRC on Command Plus Data
Error Reporting Through SPI Registers for Errors
on System Level and Device Level
– Systematic Capability and Hardware Integrity
up to ASIL D
Input Voltage Range
– 7 to 36-V for Initial Battery Power Up
– 4 to 36-V Full Functionality After Initial Battery
Power Up
– Minimum 2.3 V During Operation After Wake-up
Supply Rails (With Internal FETs)
– 6-V Synchronous Buck-Boost Preregulator
– 5-V, 285-mA LDO (CAN, Peripherals or ADC
REF 1% Accuracy with 20 to 120 mA Load)
– 3.3-V or 5-V, 350-mA LDO (MCU)
TPS653850A-Q1. 3.3-V 350-mA or 5-V 500 mA
LDO (MCU) TPS653852A-Q1
•
•
•
•
– 2 LDOs Protected for Sensor Supply or
Peripherals
•
•
•
Enable-Drive Output for Disabling External Power-
Stages on Any Detected System Failure
Wake-up through IGN Pin (Ignition) or CAN_WU
Pin (Transceiver or Other Function)
48-Pin HTSSOP PowerPAD™ IC Package
•
•
•
120 mA for Sensor Supply 1 (VSOUT1), 100
mA for Sensor Supply 2 (VSOUT2)
Configurable Tracking Mode (Tracking Input
Pin), or 3.3-V or 5-V Fixed Output Voltage
Short-to-Ground and Battery Protection
– Charge Pump: 6-V Minimum, 11-V Maximum
Above Battery Voltage
Monitoring and Protection
– Independent Undervoltage and Overvoltage
Monitoring on All Regulator Outputs, Battery
Voltage, and Internal Supplies
2 Applications
•
•
Automotive Safety-Relevent Applications
Industrial Safety-Relevant Applications
•
3 Description
The TPS653850A-Q1 and TPS653852A-Q1 device is a multirail power supply designed to supply
microcontrollers in safety relevant applications, such as those found in the automotive industry. The device
supports functional safety microcontrollers with dual-core lockstep (LS) and other multi-core architectures.
The TPS653850A-Q1 and TPS653852A-Q1 device integrates multiple supply rails to power the MCU, CAN or
FlexRay, and external sensors. A buck-boost converter with internal FETs converts the input battery voltage
between 2.3 V and 36 V to a 6-V preregulator output that supplies the other regulators. An integrated charge
pump provides an overdrive voltage for the internal regulators, and can also be used to drive an external NMOS
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.
Product Folder Links: TPS653850A-Q1 TPS653852A-Q1
Copyright © 2021 Texas Instruments Incorporated
Submit Document Feedback
1
5秒后页面跳转
英伟达新AI芯片Rubin或提前半年亮相
苹果iPhone 17将全系采用三星/LG显示LTPO OLED面板
三星深化印度制造布局，供应链本地化进程加速
芯擎科技“星辰一号”自动驾驶芯片点亮成功，2025年量产在即
微信公众号
抖音公众号
浙公网安备 33010502006866号 浙ICP备10014259号-119
营业执照ICP证
数据手册
如果您发现信息不准确，
