Overview
The TLE73682EXUMA2, produced by Infineon Technologies, is a multifunctional power supply circuit designed specifically for automotive powertrain systems. This device is part of the next generation of microcontroller power supply systems, optimized for high efficiency and reliability. It is tailored to support 32-bit microcontroller families with various voltage requirements, such as 5 V, 3.3 V, and 1.5 V, among others.
The TLE73682EXUMA2 follows the concept of its predecessor, the TLE6368, by cascading a Buck converter with linear regulators and voltage followers to achieve minimal power dissipation. This configuration enables the device to operate effectively even in high ambient temperatures.
Key Specifications
| Parameter | Specification |
|---|---|
| Input Voltage Range | < 4.5 V to 45 V |
| Operating Temperature Range | -40°C to +150°C |
| Pre-regulator (Buck Converter) | 5.5 V / 2.5 A |
| Post-regulators (LDO1) | 5 V ±2%, 800 mA current limit |
| Post-regulators (LDO2) | 3.3 V ±2% or 2.6 V ±2% (selectable), 700 mA current limit |
| Core Supply (LDO3) | 1.5 V ±2%, 1.2 V ±2%, or 1.3 V ±2% (depending on the variant) |
| Tracking Regulators | 2 regulators following the main 5 V, 105 mA and 50 mA |
| Stand-by Regulator | Hardware selectable output voltages (1.0 V or 2.6 V), 30 mA, independent battery input |
| Package | PG-DSO-36, Low Rthja Power-P-DSO-36 |
| Qualification | AEC-Q100 |
Key Features
- High efficient next generation microcontroller power supply system
- Wide battery input voltage range (< 4.5 V to 45 V)
- Operating temperature range: -40°C to +150°C
- Integrated current mode Buck converter (5.5 V / 2.5 A)
- Post-regulators for system and controller I/O supply: LDO1 (5 V ±2%, 800 mA), LDO2 (3.3 V ±2% or 2.6 V ±2%, 700 mA)
- Integrated linear regulator control circuit for controller cores (LDO3)
- Tracking regulators for off-board supply (105 mA and 50 mA)
- Stand-by regulator with low current consumption and hardware selectable output voltages
- Undervoltage detection and reset circuits
- Window watchdog circuit and overcurrent protection on all regulators
- Power sequencing on controller supplies and overtemperature shutdown
Applications
- Automotive Powertrain: Transmission, Engine Management Systems (EMS)
- Safety Systems: Electronic Power Steering (EPS)
Q & A
- What is the input voltage range of the TLE73682EXUMA2?
The input voltage range is from less than 4.5 V to 45 V.
- What are the operating temperature limits of the TLE73682EXUMA2?
The operating temperature range is from -40°C to +150°C.
- What is the output voltage and current capability of the Buck converter?
The Buck converter delivers a pre-regulated voltage of 5.5 V with a minimum peak current capability of 2.5 A.
- What are the specifications of the post-regulators (LDO1 and LDO2)?
LDO1: 5 V ±2%, 800 mA current limit; LDO2: 3.3 V ±2% or 2.6 V ±2% (selectable), 700 mA current limit.
- How does the core supply (LDO3) operate?
The core supply follows the concept of an integrated control circuit with an external NPN power stage, providing voltages such as 1.5 V, 1.2 V, or 1.3 V.
- What are the features of the stand-by regulator?
The stand-by regulator has hardware selectable output voltages (1.0 V or 2.6 V), 30 mA current, and an independent battery input.
- Does the TLE73682EXUMA2 support power sequencing?
- What kind of protection mechanisms does the TLE73682EXUMA2 have?
The device includes overcurrent protection on all regulators, undervoltage detection, and overtemperature shutdown.
- Is the TLE73682EXUMA2 AEC-Q100 qualified?
- What are the typical applications of the TLE73682EXUMA2?
The device is typically used in automotive powertrain systems, such as transmission and engine management systems, and in safety systems like electronic power steering.
