Overview
The UCC2805QDRQ1 is a high-performance, low-power BiCMOS current-mode PWM (Pulse Width Modulation) controller manufactured by Texas Instruments. This device is part of the UCC2800 family and is specifically designed for automotive applications, operating within a temperature range of −40°C to 125°C and qualified according to AEC-Q100 stress test qualification for integrated circuits.
It features a maximum duty cycle of 50%, a reference voltage of 4 V, and turn-on and turn-off thresholds of 4.1 V and 3.6 V, respectively. The UCC2805QDRQ1 is ideal for battery-operated systems due to its lower reference voltage and is packaged in an 8-pin SOIC (D) package.
Key Specifications
| Parameter | Min | Typ | Max | Units |
|---|---|---|---|---|
| Reference Voltage | 3.94 | 4 | 4.06 | V |
| Maximum Duty Cycle | 48 | 49 | 50 | % |
| Turn-on Threshold | 4.1 | - | - | V |
| Turn-off Threshold | 3.6 | - | - | V |
| Operating Supply Current | 0.5 | 1 | - | mA |
| Output Voltage (Low Level) | 0.15 | 0.4 | - | V |
| Rise Time | 41 | 70 | - | ns |
| Fall Time | 44 | 75 | - | ns |
Key Features
- High Efficiency: The UCC2805QDRQ1 offers high efficiency over the entire operation range of the output.
- Low Power Consumption: Designed with low power consumption in mind, making it suitable for battery-operated systems.
- Wide Operating Voltage Range: Operates within a voltage range of 3.5 V to 40 V.
- Internal Full-Cycle Soft Start and Leading-Edge Blanking: Features internal full-cycle soft start and leading-edge blanking of the current-sense input to enhance stability and reduce noise.
- AEC-Q100 Qualified: Qualified according to AEC-Q100 stress test qualification for integrated circuits, ensuring reliability in automotive applications.
- High-Speed Operation: Supports high-speed operation with a gain bandwidth product of 2 MHz.
Applications
- Automotive Systems: Designed for automotive applications, operating within the specified temperature range and qualified according to AEC-Q100 standards.
- Battery-Operated Systems: Ideal for battery-operated systems due to its lower reference voltage and low power consumption.
- Off-Line Power Supplies: Although primarily suited for battery-operated systems, the UCC2800 family, including the UCC2805QDRQ1, can be used in off-line power supplies where lower reference voltages are required.
Q & A
- What is the maximum duty cycle of the UCC2805QDRQ1?
The maximum duty cycle of the UCC2805QDRQ1 is 50%.
- What is the reference voltage of the UCC2805QDRQ1?
The reference voltage of the UCC2805QDRQ1 is 4 V.
- What is the operating temperature range of the UCC2805QDRQ1?
The UCC2805QDRQ1 operates within a temperature range of −40°C to 125°C.
- Is the UCC2805QDRQ1 AEC-Q100 qualified?
Yes, the UCC2805QDRQ1 is qualified according to AEC-Q100 stress test qualification for integrated circuits.
- What is the package type of the UCC2805QDRQ1?
The UCC2805QDRQ1 is packaged in an 8-pin SOIC (D) package.
- What are the turn-on and turn-off thresholds of the UCC2805QDRQ1?
The turn-on threshold is 4.1 V, and the turn-off threshold is 3.6 V.
- What is the typical operating supply current of the UCC2805QDRQ1?
The typical operating supply current is 1 mA.
- Does the UCC2805QDRQ1 feature internal full-cycle soft start?
Yes, the UCC2805QDRQ1 features internal full-cycle soft start and leading-edge blanking of the current-sense input.
- What is the gain bandwidth product of the UCC2805QDRQ1?
The gain bandwidth product is 2 MHz.
- What are the typical rise and fall times of the UCC2805QDRQ1?
The typical rise time is 70 ns, and the typical fall time is 75 ns.
