UCC3813DTR-3
ActiveECONOMY LOW POWER BICMOS 1MHZ CURRENT MODE PWM WITH 4.1V/3.6V UVLO, 100% DUTY CYCLE, 0C TO 70C
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UCC3813DTR-3
ActiveECONOMY LOW POWER BICMOS 1MHZ CURRENT MODE PWM WITH 4.1V/3.6V UVLO, 100% DUTY CYCLE, 0C TO 70C
Technical Specifications
Parameters and characteristics for this part
| Specification | UCC3813DTR-3 |
|---|---|
| Clock Sync | False |
| Control Features | Frequency Control |
| Duty Cycle (Max) [Max] | 99 % |
| Frequency - Switching | 31 kHz |
| Function | Step-Up/Step-Down, Step-Up |
| Mounting Type | Surface Mount |
| Number of Outputs | 1 |
| Operating Temperature [Max] | 70 °C |
| Operating Temperature [Min] | 0 °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 | Flyback, Boost, Forward Converter |
| Voltage - Supply (Vcc/Vdd) [Max] | 12 V |
| Voltage - Supply (Vcc/Vdd) [Min] | 3.6 V |
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 | 2400 | $ 2.15 | |
| Texas Instruments | LARGE T&R | 1 | $ 1.55 | |
| 100 | $ 1.28 | |||
| 250 | $ 0.92 | |||
| 1000 | $ 0.69 | |||
Description
General part information
UCC3813-3 Series
The UCC3813-x device family of high-speed, low-power integrated circuits contains all of the control and drive components required for off-line and DC-to-DC fixed-frequency current-mode switching power supplies with minimal parts count.
These devices have the same pin configuration as the UC384x device family, and also offer the added features of internal full-cycle soft start and internal leading-edge blanking of the current-sense input.
The UCC3813-x device family offers a variety of package options, temperature-range options, choice of maximum duty cycle, and choice of critical voltage levels. Devices with lower reference voltage such as the UCC3813-3 and UCC3813-5 fit best into battery operated systems, while the higher reference and the higher UVLO hysteresis of the UCC3813-2 device and UCC3813-4 device make these ideal choices for use in off-line power supplies.
Documents
Technical documentation and resources