UCC3809PTR-2
ActiveECONOMY PRIMARY SIDE CONTROLLER WITH 15V/8V UVLO, 0C TO 70C
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UCC3809PTR-2
ActiveECONOMY PRIMARY SIDE CONTROLLER WITH 15V/8V UVLO, 0C TO 70C
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Technical Specifications
Parameters and characteristics for this part
| Specification | UCC3809PTR-2 |
|---|---|
| Control Features | Soft Start, Frequency Control |
| Duty Cycle | 70 % |
| Frequency - Switching | 1 MHz |
| Internal Switch(s) | False |
| Mounting Type | Surface Mount |
| Operating Temperature [Max] | 150 °C |
| Operating Temperature [Min] | -55 °C |
| Output Isolation | Isolated |
| Package / Case | 8-TSSOP, 8-MSOP |
| Package / Case | 0.118 in, 3 mm Width |
| Supplier Device Package | 8-VSSOP |
| Topology | Forward, Buck, Boost, Flyback |
| Voltage - Start Up | 15 V |
| Voltage - Supply (Vcc/Vdd) [Max] | 19 V |
| Voltage - Supply (Vcc/Vdd) [Min] | 8 V |
UCC3809 Series
Economy primary side controller with 10V/8V UVLO, 0C to 70C
| Part | Package / Case | Package / Case | Mounting Type | Control Features | Internal Switch(s) | Duty Cycle | Voltage - Start Up | Operating Temperature [Max] | Operating Temperature [Min] | Topology | Supplier Device Package | Voltage - Supply (Vcc/Vdd) [Min] | Voltage - Supply (Vcc/Vdd) [Max] | Output Isolation | Frequency - Switching | Package / Case | Package / Case | Board Type | Supplied Contents | Outputs and Type | Outputs and Type | Voltage - Input [Min] | Voltage - Input [Max] | Main Purpose | Voltage - Output | Regulator Topology | Current - Output | Contents | Utilized IC / Part |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Texas Instruments | 8-MSOP 8-TSSOP | 0.118 in 3 mm Width | Surface Mount | Frequency Control Soft Start | 70 % | 15 V | 150 °C | -55 °C | Boost Buck Flyback Forward | 8-VSSOP | 8 V | 19 V | Isolated | 1 MHz | |||||||||||||||
 Texas Instruments | 8-MSOP 8-TSSOP | 0.118 in 3 mm Width | Surface Mount | Frequency Control Soft Start | 70 % | 15 V | 150 °C | -55 °C | Boost Buck Flyback Forward | 8-VSSOP | 8 V | 19 V | Isolated | 1 MHz | |||||||||||||||
 Texas Instruments | 8-TSSOP | Surface Mount | Frequency Control Soft Start | 70 % | 15 V | 150 °C | -55 °C | Boost Buck Flyback Forward | 8-TSSOP | 8 V | 19 V | Isolated | 1 MHz | 0.173 in | 4.4 mm | ||||||||||||||
 Texas Instruments | 8-MSOP 8-TSSOP | 0.118 in 3 mm Width | Surface Mount | Frequency Control Soft Start | 70 % | 15 V | 150 °C | -55 °C | Boost Buck Flyback Forward | 8-VSSOP | 8 V | 19 V | Isolated | 1 MHz | |||||||||||||||
 Texas Instruments | 8-SOIC | Surface Mount | Frequency Control Soft Start | 70 % | 15 V | 150 °C | -55 °C | Boost Buck Flyback Forward | 8-SOIC | 8 V | 19 V | Isolated | 1 MHz | 0.154 in | 3.9 mm | ||||||||||||||
 Texas Instruments | |||||||||||||||||||||||||||||
 Texas Instruments | 380 kHz | Fully Populated | Board(s) | 1 | 1 Non-Isolated Output Non-Isolated | 32 V | 75 V | DC/DC Step Down | 3.3 V | Buck | 3.3 A | Board(s) | UCC3809 | ||||||||||||||||
Texas Instruments | 8-MSOP 8-TSSOP | 0.118 in 3 mm Width | Surface Mount | Frequency Control Soft Start | 70 % | 15 V | 150 °C | -55 °C | Boost Buck Flyback Forward | 8-VSSOP | 8 V | 19 V | Isolated | 1 MHz | |||||||||||||||
Texas Instruments | 8-TSSOP | Surface Mount | Frequency Control Soft Start | 70 % | 15 V | 150 °C | -55 °C | Boost Buck Flyback Forward | 8-TSSOP | 8 V | 19 V | Isolated | 1 MHz | 0.173 in | 4.4 mm | ||||||||||||||
Texas Instruments | 8-SOIC | Surface Mount | Frequency Control Soft Start | 70 % | 15 V | 150 °C | -55 °C | Boost Buck Flyback Forward | 8-SOIC | 8 V | 19 V | Isolated | 1 MHz | 0.154 in | 3.9 mm |
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 | $ 1.57 | |
| 1795 | $ 1.57 | |||
| Tape & Reel (TR) | 2500 | $ 1.24 | ||
| 5000 | $ 1.19 | |||
| Texas Instruments | LARGE T&R | 1 | $ 2.11 | |
| 100 | $ 1.85 | |||
| 250 | $ 1.29 | |||
| 1000 | $ 1.04 | |||
Description
General part information
UCC3809 Series
The UCC3809 family of BCDMOS economy low power integrated circuits contains all the control and drive circuitry required for off-line and isolated DC-to-DC fixed frequency current mode switching power supplies with minimal external parts count. Internally implemented circuits include undervoltage lockout featuring startup current less than 100µA, a user accessible voltage reference, logic to ensure latched operation, a PWM comparator, and a totem pole output stage to sink or source peak current. The output stage, suitable for driving N-Channel MOSFETs, is low in the off state.
Oscillator frequency and maximum duty cycle are programmed with two resistors and a capacitor. The UCC3809 family also features full cycle soft start.
The family has UVLO thresholds and hysteresis levels for off-line and DC-to-DC systems as shown in the table to the left.
Documents
Technical documentation and resources