UC2842AD8TR Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
The UC2842AD8TR is a current-mode PWM controller IC from Texas Instruments, operating from 11V to 28V input with 15V nominal supply, designed for fixed-frequency switching power supply control in an 8-pin SOIC package with tape-and-reel packaging. It provides reliable cycle-by-cycle current limiting and fast transient response for flyback and forward converter topologies. In stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- UC2842AD8TR 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
Key Features
- Current-mode PWM control provides inherent cycle-by-cycle current limiting and simplified compensation for robust power supply designs
- 11V to 28V wide input voltage range with 15V nominal enables flexible integration into diverse switching converter architectures
- 8-pin SOIC (R-PDSO-G8) with tape-and-reel packaging supports automated high-volume PCB assembly
- Fixed-frequency oscillator with programmable dead time enables precise switching frequency control for EMI management
Applications
The UC2842AD8TR is widely used in offline and DC-DC switching power supplies utilizing flyback, forward, and boost converter topologies, where current-mode PWM control simplifies loop design and improves stability. It is commonly found in AC-DC adapters, industrial power modules, telecom power supplies, and battery chargers operating from 11V to 28V input rails. Its 8-pin SOIC form factor and tape-and-reel packaging make it suitable for high-volume automated production of consumer and industrial power supplies.
Specifications
| Pbfree Code | Yes |
| YTEOL | 15 |
| Analog IC - Other Type | SWITCHING CONTROLLER |
| Control Mode | CURRENT-MODE |
| Control Technique | PULSE WIDTH MODULATION |
| Input Voltage-Max | 28V |
| Input Voltage-Min | 11V |
| Input Voltage-Nom | 15V |
| JESD-30 Code | R-PDSO-G8 |
| JESD-609 Code | e4 |
| Number of Functions | 1 |
| Output Current-Max | 1A |
| Output Voltage-Max | 5.05V |
| Output Voltage-Min | 4.95V |
| Output Voltage-Nom | 5V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP8,.25 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Supply Current-Max (Isup) | 25mA |
| Supply Voltage-Max (Vsup) | 28V |
| Supply Voltage-Min (Vsup) | 16V |
| Supply Voltage-Nom (Vsup) | 11V |
| Surface Mount | YES |
| Switcher Configuration | BUCK-BOOST |
| Switching Frequency-Max | 500kHz |
| Technology | BIPOLAR |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| 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 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
| Country of Origin | Mexico |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for UC2842AD8TR:
Switching Controller, Current-mode, 1A, 500kHz Switching Freq-Max, BIPolar, PDSO8
Frequently Asked Questions
What control mode does the UC2842AD8TR use?
The UC2842AD8TR uses current-mode pulse-width modulation (PWM) control. This approach senses the peak inductor current each switching cycle, providing inherent cycle-by-cycle current limiting, improved transient response, and simplified error amplifier compensation compared to voltage-mode PWM.
What is the input voltage range of the UC2842AD8TR?
The UC2842AD8TR operates with an input supply voltage from 11V minimum to 28V maximum, with a 15V nominal value. This range makes it compatible with a variety of power supply input rails in industrial, telecom, and consumer electronic applications.
What package and delivery format does the UC2842AD8TR come in?
The UC2842AD8TR is housed in an 8-pin SOIC package (JESD-30 code R-PDSO-G8) and is available in tape-and-reel format as indicated by the TR suffix, making it ideal for automated surface-mount assembly in high-volume production environments.
Is the UC2842AD8TR RoHS compliant?
Yes, the UC2842AD8TR is marked as Pb-free (Pbfree Code: Yes) and carries a JESD-609 code of e4, confirming it meets RoHS and lead-free requirements for global distribution in environmentally regulated markets.
What power supply topologies is the UC2842AD8TR suitable for?
The UC2842AD8TR is suitable for flyback, forward, boost, and other single-switch switching converter topologies. It is commonly used in AC-DC adapters, isolated DC-DC converters, battery chargers, industrial power modules, and telecom power supplies where current-mode control and fixed-frequency operation are required.
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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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