Overview
The UCC2804DTR/81260G4 is a high-speed, low-power integrated circuit designed by Texas Instruments, belonging to the Power Supply Controllers, Monitors category within their Power Management (PMIC) portfolio. This device is part of the UCC280x family and is specifically engineered as a PWM (Pulse Width Modulation) controller for use in DC-DC converters and other power supply designs. Although marked as obsolete by Texas Instruments, it remains suitable for existing designs where compatibility is crucial.
Key Specifications
| Series | UCC280x |
|---|---|
| Product Status | Obsolete |
| Package/Case | 8-SOIC (0.154", 3.90mm Width) |
| Voltage - Input | -0.3V to 6.3V |
| Voltage - Supply | 8.3V to 11V |
| Current - Supply | 500 µA |
| Operating Temperature | -40°C to 125°C (TA) |
| Mounting Type | Surface Mount |
| Frequency - Switch, max | 1 MHz |
Key Features
- PWM (Pulse Width Modulation) controller
- Surface-mount IC with a package width of 3.90mm
- Operating temperature range: -40°C to 125°C (TA)
- Supply voltage: 8.3V to 11V
- Input voltage: -0.3V to 6.3V
- Supply current: 500 µA
- 100-µA typical starting supply current
- Internal soft start and internal fault soft start
- Internal leading-edge blanking of the current-sense input
- 1-A totem-pole output
- 70-ns typical response from current-sense to gate drive output
- 1.5% tolerance voltage reference
- Same pinout as UC3842 and UC3842A
Applications
- Power supply design for industrial automation and control systems
- High-precision signal processing applications in various industries
- Medical device power supplies requiring high stability and accuracy
- Consumer electronics with advanced power management requirements
Q & A
- What is the UCC2804DTR/81260G4 used for?
The UCC2804DTR/81260G4 is used as a PWM controller in DC-DC converters and other power supply designs.
- What is the operating temperature range of the UCC2804DTR/81260G4?
The operating temperature range is -40°C to 125°C (TA).
- What is the supply voltage range for the UCC2804DTR/81260G4?
The supply voltage range is 8.3V to 11V.
- What is the input voltage range for the UCC2804DTR/81260G4?
The input voltage range is -0.3V to 6.3V.
- What is the typical supply current of the UCC2804DTR/81260G4?
The typical supply current is 500 µA.
- Does the UCC2804DTR/81260G4 have internal soft start and fault soft start features?
Yes, it has internal soft start and internal fault soft start features.
- What is the maximum switching frequency of the UCC2804DTR/81260G4?
The maximum switching frequency is 1 MHz.
- Is the UCC2804DTR/81260G4 still available for use despite being marked as obsolete?
Yes, it can still be used in existing designs where compatibility is key.
- What type of package does the UCC2804DTR/81260G4 come in?
The UCC2804DTR/81260G4 comes in an 8-SOIC package.
- What are some common applications of the UCC2804DTR/81260G4?
Common applications include power supply design for industrial automation, high-precision signal processing, medical device power supplies, and consumer electronics.
