Overview
The Texas Instruments UCC25800AQDGNRQ1 is an ultra-low EMI transformer driver designed specifically for isolated bias supplies in automotive applications, particularly in electric and hybrid vehicles. This device is engineered to efficiently manage high-voltage battery charging and discharging, protecting the battery from overcharging and discharging while enhancing overall system reliability. It integrates the switching power stage, control, and protection circuits to simplify isolated bias supply designs, making it suitable for use in demanding automotive environments.
Key Specifications
| Category | Specification | Value |
|---|---|---|
| Current - Supply | 14 mA | |
| Voltage - Supply | 9 V to 34 V | |
| Operating Temperature | -40°C to 125°C (TA) | |
| Mounting Type | Surface Mount | |
| Package/Case | HVSSOP8 | |
| Switching Frequency Range | 0.1 MHz to 1.2 MHz | |
| Internal MOSFET RMS Current Rating | 500 mA | |
| Internal MOSFET Peak Current Rating | 1 A |
Key Features
- High-efficiency half-bridge transformer driver
- Ultra-low EMI with low interwinding capacitance
- Programmable frequency: 0.1 MHz to 1.2 MHz
- Wide input voltage range: 9 V to 34 V
- Automatic dead-time adjustment with maximum dead-time programming
- External clock synchronization for low noise
- Robust protection features:
- Undervoltage lockout (UVLO)
- Programmable over-current protection (OCP)
- Input overvoltage protection (OVP)
- Over temperature protection (TSD)
- Integrated soft-start to reduce in-rush current
- External disable function with fault-code output
Applications
The UCC25800AQDGNRQ1 is primarily used in automotive applications, specifically in electric and hybrid vehicles for managing high-voltage battery charging and discharging. It is also suitable for other applications such as:
- Automotive traction inverter and motor control
- Automotive on-board charger (OBC)
- Automotive DC/DC converter
- EV charging stations, DC fast charging stations
- UPS and solar inverters
- Industrial motors, elevators, and escalators
- GaN, IGBT, and SiC gate transformer driver bias supply
Q & A
- What is the primary application of the UCC25800AQDGNRQ1?
The primary application is in automotive systems, particularly in electric and hybrid vehicles for managing high-voltage battery charging and discharging.
- What are the key features of the UCC25800AQDGNRQ1?
Key features include high-efficiency half-bridge transformer driver, ultra-low EMI, programmable frequency, wide input voltage range, automatic dead-time adjustment, and robust protection features.
- What is the operating temperature range of the UCC25800AQDGNRQ1?
The operating temperature range is -40°C to 125°C (TA).
- What is the package type of the UCC25800AQDGNRQ1?
The package type is HVSSOP8 with a thermal pad.
- What protection features does the UCC25800AQDGNRQ1 offer?
Protection features include undervoltage lockout (UVLO), programmable over-current protection (OCP), input overvoltage protection (OVP), and over temperature protection (TSD).
- How does the UCC25800AQDGNRQ1 manage in-rush current?
It includes an integrated soft-start feature to reduce in-rush current during start-up and fault recovery.
- Can the UCC25800AQDGNRQ1 be externally disabled?
Yes, it has an external disable function with fault-code output.
- What is the switching frequency range of the UCC25800AQDGNRQ1?
The switching frequency range is 0.1 MHz to 1.2 MHz.
- Is the UCC25800AQDGNRQ1 suitable for functional safety applications?
Yes, it is functional safety-capable and AEC-Q100 qualified for automotive applications.
- What other applications can the UCC25800AQDGNRQ1 be used in besides automotive?
Besides automotive, it can be used in UPS and solar inverters, industrial motors, elevators, and escalators, as well as GaN, IGBT, and SiC gate transformer driver bias supplies.
