UCC2808D-2
ObsoleteLOW POWER CURRENT MODE PUSH-PULL PWM WITH 4.3/4.1V UVLO, -40°C TO 85°C
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UCC2808D-2
ObsoleteLOW POWER CURRENT MODE PUSH-PULL PWM WITH 4.3/4.1V UVLO, -40°C TO 85°C
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Technical Specifications
Parameters and characteristics for this part
| Specification | UCC2808D-2 |
|---|---|
| Clock Sync | False |
| Control Features | Frequency Control |
| Duty Cycle (Max) [Max] | 49 % |
| Frequency - Switching | 194 kHz |
| Function | Step-Up/Step-Down |
| Mounting Type | Surface Mount |
| Number of Outputs | 2 |
| Operating Temperature [Max] | 85 C |
| Operating Temperature [Min] | -40 ¯C |
| Output Configuration | Positive |
| Output Phases | 1 |
| Output Type | Transistor Driver |
| Package / Case | 0.154 in |
| Package / Case | 8-SOIC |
| Package / Case | 3.9 mm |
| Supplier Device Package | 8-SOIC |
| Synchronous Rectifier | False |
| Topology | Push-Pull |
| Voltage - Supply (Vcc/Vdd) [Max] | 15 V |
| Voltage - Supply (Vcc/Vdd) [Min] | 4.1 V |
UCC2808 Series
Low power current mode push-pull PWM with discharge transistor, 12.5/8.3V UVLO, -40°C to 85°C
| Part | Operating Temperature [Max] | Operating Temperature [Min] | Supplier Device Package | Mounting Type | Internal Switch(s) | Duty Cycle | Voltage - Supply (Vcc/Vdd) [Max] | Voltage - Supply (Vcc/Vdd) [Min] | Frequency - Switching | Package / Case | Topology | Voltage - Start Up | Control Features | Output Isolation | Output Phases | Package / Case | Package / Case | Clock Sync | Number of Outputs | Output Type | Function | Output Configuration | Duty Cycle (Max) [Max] | Synchronous Rectifier |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 Texas Instruments | 150 °C | -55 °C | 8-PDIP | Through Hole | 49 % | 15 V | 8.3 V | 1 MHz | 8-DIP (0.300" 7.62mm) | Full-Bridge Half-Bridge Push-Pull | 12.5 V | Frequency Control | Isolated | |||||||||||
 Texas Instruments | 85 C | -40 ¯C | 8-SOIC | Surface Mount | 15 V | 4.1 V | 194 kHz | 8-SOIC | Push-Pull | Frequency Control | 1 | 0.154 in | 3.9 mm | 2 | Transistor Driver | Step-Up/Step-Down | Positive | 49 % | ||||||
 Texas Instruments | 85 C | -40 ¯C | 8-TSSOP | Surface Mount | 15 V | 4.1 V | 194 kHz | 8-TSSOP | Push-Pull | Frequency Control | 1 | 0.173 in | 4.4 mm | 2 | Transistor Driver | Step-Up/Step-Down | Positive | 49 % | ||||||
Texas Instruments | 85 C | -40 ¯C | 8-SOIC | Surface Mount | 15 V | 4.1 V | 194 kHz | 8-SOIC | Push-Pull | Frequency Control | 1 | 0.154 in | 3.9 mm | 2 | Transistor Driver | Step-Up/Step-Down | Positive | 49 % | ||||||
Texas Instruments | 150 °C | -55 °C | 8-PDIP | Through Hole | 49 % | 15 V | 8.3 V | 1 MHz | 8-DIP (0.300" 7.62mm) | Full-Bridge Half-Bridge Push-Pull | 12.5 V | Frequency Control | Isolated | |||||||||||
 Texas Instruments | 150 °C | -55 °C | 8-TSSOP | Surface Mount | 49 % | 15 V | 8.3 V | 1 MHz | 8-TSSOP | Full-Bridge Half-Bridge Push-Pull | 12.5 V | Frequency Control | Isolated | 0.173 in | 4.4 mm | |||||||||
Texas Instruments | 150 °C | -55 °C | 8-SOIC | Surface Mount | 49 % | 15 V | 8.3 V | 1 MHz | 8-SOIC | Push-Pull | 12.5 V | Frequency Control | Isolated | 0.154 in | 3.9 mm | |||||||||
 Texas Instruments | 85 C | -40 ¯C | 8-PDIP | Through Hole | 15 V | 4.1 V | 194 kHz | 8-DIP (0.300" 7.62mm) | Push-Pull | Frequency Control | 1 | 2 | Transistor Driver | Step-Up/Step-Down | Positive | 49 % | ||||||||
Texas Instruments | 85 C | -40 ¯C | 8-SOIC | Surface Mount | 15 V | 4.1 V | 194 kHz | 8-SOIC | Push-Pull | Frequency Control | 1 | 0.154 in | 3.9 mm | 2 | Transistor Driver | Step-Up/Step-Down | Positive | 49 % | ||||||
Texas Instruments | 125 °C | -40 C | 8-SOIC | Surface Mount | 15 V | 4.1 V | 194 kHz | 8-SOIC | Push-Pull | Frequency Control | 1 | 0.154 in | 3.9 mm | 2 | Transistor Driver | Step-Up/Step-Down | Positive | 49 % |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Digikey | N/A | 0 | $ 3.65 | |
| Tube | 1 | $ 5.17 | ||
| 10 | $ 3.45 | |||
| 25 | $ 3.01 | |||
| 100 | $ 2.51 | |||
| Texas Instruments | TUBE | 1 | $ 2.91 | |
| 100 | $ 2.55 | |||
| 250 | $ 1.79 | |||
| 1000 | $ 1.44 | |||
Description
General part information
UCC2808 Series
The UCC2808A-xQ1 is a family of BiCMOS push-pull, high-speed, low-power, pulse-width modulators. The UCC2808A-xQ1 contains all of the control and drive circuitry required for off-line or DC-to-DC fixed frequency current-mode switching power supplies with minimal external parts count.
The UCC2808A-xQ1 dual output drive stages are arranged in a push-pull configuration. Both outputs switch at half the oscillator frequency using a toggle flip-flop. The dead time between the two outputs is typically 60 ns to 200 ns depending on the values of the timing capacitor and resistors, thus limiting each output stage duty cycle to less than 50%.
The UCC2808A-xQ1 family offers a variety of package options and choice of undervoltage lockout levels. The family has UVLO thresholds and hysteresis options for off-line and battery powered systems. Thresholds are shown in the ordering information table.
Documents
Technical documentation and resources