Overview
The RBO40-40G-TR from STMicroelectronics is a monolithic component designed to provide comprehensive protection against battery reversal and load dump overvoltages in automotive applications. This device integrates multiple functions into a single package, enhancing reliability and simplifying circuit design. It includes a diode for reversed battery protection, and two Transil functions to protect against positive and negative overvoltages.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Non repetitive surge peak forward current (Diode D1) | 120 | A |
| DC forward current (Diode D1) | 40 | A |
| Peak load dump voltage | 80 | V |
| Peak pulse power between Input and Output (Transil T1) | 1500 | W |
| Storage and operating junction temperature range | -40 to +150 | °C |
| Maximum lead temperature for soldering | 260 | °C |
| Junction to case thermal resistance (RBO40-40G) | 1.0 | °C/W |
| Junction to ambient thermal resistance (RBO40-40T) | 60 | °C/W |
| Forward voltage drop Diode D1 at IF = 40 A | 1.9 | V |
| Breakdown voltage Transil T1/T2 at IR = 1 mA | 24-32 | V |
| Clamping voltage Transil T1/T2 at IPP = 37.5 A | 40 | V |
Key Features
- Protection against battery reversal and load dump overvoltages.
- Monolithic structure for greater reliability.
- 40 A diode to guard against battery reversal.
- Transil functions (T1 and T2) to protect against positive and negative overvoltages.
- Compliant with ISO/DTR 7637 standards.
- Integrated protection for motor drive applications.
Applications
- Automotive electronic modules to protect against overvoltage and battery reverse conditions.
- Motor drive applications to safeguard against positive and negative surges.
- Protection of sensitive semiconductors in car electronic systems.
Q & A
- What is the primary function of the RBO40-40G-TR?
The primary function is to protect against battery reversal and load dump overvoltages in automotive applications.
- What are the key components integrated into the RBO40-40G-TR?
The device includes a diode (D1) for reversed battery protection and two Transil functions (T1 and T2) for overvoltage protection.
- What is the maximum DC forward current of the diode D1?
The maximum DC forward current of the diode D1 is 40 A at Tc = 75°C.
- What is the peak load dump voltage the device can handle?
The device can handle a peak load dump voltage of 80 V.
- What are the operating temperature ranges for the RBO40-40G-TR?
The storage and operating junction temperature range is -40 to +150°C.
- Is the RBO40-40G-TR compliant with any specific standards?
Yes, it is compliant with ISO/DTR 7637 standards.
- What are the typical applications of the RBO40-40G-TR?
Typical applications include automotive electronic modules and motor drive systems.
- What is the maximum lead temperature for soldering?
The maximum lead temperature for soldering is 260°C.
- What is the junction to case thermal resistance for the RBO40-40G package?
The junction to case thermal resistance for the RBO40-40G package is 1.0°C/W.
- How does the RBO40-40G-TR protect against positive and negative surges in motor drive applications?
The device protects against positive surges using T2 (clamping phase) and D1 in forward-biased, and against negative surges using T1 (clamping phase) and T2 in forward-biased.
