UCC3813PW-0G4 Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
UCC3813PW-0G4 is a current-mode PWM switching controller by Texas Instruments, delivering up to 1 A gate drive at switching frequencies up to 1 MHz. Key specs: 7.5 V to 12 V supply, 8-pin TSSOP package, current-mode control with adjustable frequency. From competitive pricing, in stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- OBSOLETE
- Datasheet
- UCC3813PW-0G4 Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- ?°C to 70.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Current-mode PWM control with up to 1 MHz switching frequency enables high-frequency compact converter designs with reduced magnetics size
- 1 A peak gate drive output allows direct drive of power MOSFETs in low-to-medium power flyback, forward, and boost topologies
- 7.5 V to 12 V supply range is compatible with common bias voltages from auxiliary windings and dedicated supply rails
- Precision 5 V internal reference and accurate oscillator ensure tight duty cycle control and predictable converter performance
- 8-pin TSSOP ultra-compact package minimizes PCB footprint for space-constrained power supply designs
Applications
The UCC3813PW-0G4 is widely used as the PWM controller in offline flyback and forward converters for low-to-medium power AC/DC adapters, set-top box power supplies, and telecom equipment. It is also deployed in DC/DC converters in industrial and instrumentation power supplies where current-mode control with high switching frequency is required for fast transient response and tight output regulation. The device's compact TSSOP package makes it well-suited for high-density power module designs.
Specifications
| 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 | 7.5V |
| Input Voltage-Nom | 10V |
| JESD-30 Code | R-PDSO-G8 |
| JESD-609 Code | e4 |
| Number of Functions | 1 |
| Output Current-Max | 1A |
| Output Voltage-Max | 5.075V |
| Output Voltage-Min | 4.925V |
| Output Voltage-Nom | 5V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSSOP8,.25 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, THIN PROFILE, SHRINK PITCH |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Supply Current-Max (Isup) | 1.2mA |
| Surface Mount | YES |
| Switcher Configuration | SINGLE |
| Switching Frequency-Max | 52kHz |
| Technology | BICMOS |
| Temperature Grade | COMMERCIAL |
| Terminal Finish | NICKEL PALLADIUM GOLD |
| 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 |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for UCC3813PW-0G4:
Switching Controller, Current-mode, 1A, 1000kHz Switching Freq-Max, BICMOS, PDSO8
Switching Controller, Current-mode, 1A, 1000kHz Switching Freq-Max, BICMOS, PDSO8
Switching Controller, Current-mode, 1A, 52kHz Switching Freq-Max, BICMOS, PDSO8
Switching Controller, Current-mode, 1A, 52kHz Switching Freq-Max, BICMOS, PDSO8
Switching Controller, Current-mode, 1A, 52kHz Switching Freq-Max, BICMOS, PDSO8
Frequently Asked Questions
What control mode does the UCC3813PW-0G4 use?
The UCC3813PW-0G4 uses current-mode pulse width modulation (PWM) control. This technique senses the peak inductor current each cycle to control the duty cycle, providing inherent input voltage feed-forward, cycle-by-cycle current limiting, and simplified loop compensation compared to voltage-mode control.
What is the maximum switching frequency of the UCC3813PW-0G4?
The device can operate at switching frequencies up to 1000 kHz (1 MHz), which is set by an external resistor-capacitor network connected to the oscillator pin. Higher switching frequencies allow the use of smaller inductors and transformers, enabling more compact power supply designs.
What is the supply voltage range for the UCC3813PW-0G4?
The UCC3813PW-0G4 operates from a supply voltage range of 7.5 V minimum to 12 V maximum, with a nominal operating voltage of 10 V. This is typically derived from an auxiliary winding on the power transformer or a dedicated bias supply rail.
What package does the UCC3813PW-0G4 come in?
The device is packaged in an 8-pin TSSOP (Thin Shrink Small Outline Package, R-PDSO-G8), which is a compact surface-mount package suitable for high-density PCB layouts. The G4 suffix indicates RoHS compliance (lead-free), meeting environmental requirements for modern electronics.
What types of power converter topologies can the UCC3813PW-0G4 control?
The UCC3813PW-0G4 is suitable for flyback, forward, boost, and buck-boost power converter topologies. It is most commonly used in single-ended isolated converters such as flyback and forward designs in AC/DC adapters, telecommunications power supplies, and industrial DC/DC converters requiring current-mode control.
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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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