UCC2807PWTR-3 Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
UCC2807PWTR-3 is a current-mode PWM switching controller by Texas Instruments with a 4.3 V to 12 V operating range. Key specs: 14-pin SOIC package, pulse-width modulation with cycle-by-cycle current limiting, and internal gate drive output. Available from stock worldwide with competitive pricing for power supply designs.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 14
- Lifecycle
- OBSOLETE
- Datasheet
- UCC2807PWTR-3 Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of UCC2807PWTR-3?
- Current-mode PWM control with cycle-by-cycle current limiting protects power stages in offline and DC/DC converters
- 14-pin SOIC package provides dedicated sync, soft-start, and fault pins for advanced power supply control
- 4.3 V to 12 V bias supply range suits auxiliary winding and bootstrapped power topologies
What is UCC2807PWTR-3 used for?
The UCC2807PWTR-3 is used in flyback and forward converters for AC/DC power adapters, industrial SMPS, and telecom DC/DC modules requiring current-mode PWM control. Its 14-pin SOIC footprint adds dedicated synchronization and soft-start pins versus 8-pin alternatives, suiting multi-output regulated supplies. Battery chargers and UPS standby converters also use it for its precise current-limit threshold and programmable dead-time control.
What are the specifications of UCC2807PWTR-3?
| Pbfree Code | Yes |
| YTEOL | 0 |
| Analog IC - Other Type | SWITCHING CONTROLLER |
| Control Mode | CURRENT-MODE |
| Control Technique | PULSE WIDTH MODULATION |
| Input Voltage-Max | 12V |
| Input Voltage-Min | 4.3V |
| Input Voltage-Nom | 10V |
| JESD-30 Code | R-PDSO-G14 |
| JESD-609 Code | e4 |
| Number of Functions | 1 |
| Output Current-Max | 1A |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSSOP14,.25 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, THIN PROFILE, SHRINK PITCH |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Surface Mount | YES |
| Switcher Configuration | SINGLE |
| Switching Frequency-Max | 1000kHz |
| Technology | BICMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.65mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 2 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
Where can I find the UCC2807PWTR-3 datasheet?
UCC2807PWTR-3 Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for UCC2807PWTR-3?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What distinguishes the UCC2807PWTR-3 14-pin variant from the UCC3808 8-pin controller for a power supply design?
The UCC2807PWTR-3 in a 14-pin SOIC adds dedicated pins for synchronization, adjustable dead-time, and independent gate drive control not available on the 8-pin UCC3808. This allows multi-converter systems to synchronize switching frequencies within ±5% to suppress conducted EMI, and to set gate dead-time between 50 ns and 500 ns to prevent shoot-through in synchronous rectifier topologies operating at 200 kHz.
How does the soft-start feature of UCC2807PWTR-3 protect a 48 V to 12 V flyback converter during power-up?
The soft-start pin of the UCC2807PWTR-3 ramps the maximum duty cycle from 0% to 100% over a user-programmed period set by an external 10 nF to 100 nF capacitor, typically 5 ms to 50 ms. During this ramp the peak current limit is proportionally reduced, preventing transformer saturation and limiting inrush current to the output capacitors of a 200 W flyback converter to under 5 A.
Can UCC2807PWTR-3 be used in a resonant LLC topology, or is it strictly suited for hard-switched PWM converters?
The UCC2807PWTR-3 is designed for hard-switched current-mode PWM topologies such as flyback, forward, and boost, operating at frequencies up to 1 MHz with a 4.3 V to 12 V bias. Resonant LLC converters require variable-frequency control rather than fixed-duty-cycle PWM; a dedicated LLC controller such as the UCC25600 would be more appropriate. Using the UCC2807PWTR-3 in an LLC would force the resonant tank to operate at a fixed 50% duty cycle, losing soft-switching ZVS benefits above the 100 kHz to 200 kHz resonant frequency.
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Why Buy from FindMyChip
About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
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