UC2823ADW Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
UC2823ADW is a high-speed current-mode PWM controller from Texas Instruments capable of sourcing and sinking 2 A gate drive current, operating from an 8.8 V to 12 V input supply. It supports both current-mode and voltage-mode control with pulse width modulation for efficient power conversion designs. Available in a 16-pin SOIC package with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 16
- Lifecycle
- ACTIVE
- Datasheet
- UC2823ADW Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $12.5400(MOQ 15)
- 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 UC2823ADW?
- 2 A peak output gate drive current enables direct drive of large power MOSFETs without buffer stages
- Supports current-mode and voltage-mode PWM control for flexible power supply topologies
- Input voltage range of 8.8 V to 12 V suits a wide variety of DC-DC converter and offline power supply designs
What is UC2823ADW used for?
UC2823ADW is widely used in high-frequency DC-DC converters, offline flyback and forward converters, and industrial switching power supplies requiring tight output regulation. The current-mode control architecture provides inherent cycle-by-cycle overcurrent protection, making it suitable for server power modules and telecom rectifiers. It also finds use in motor drive auxiliary supplies and battery charger circuits where fast transient response is critical.
What are the specifications of UC2823ADW?
| Pbfree Code | Yes |
| Date Of Intro | 1999-11-03 |
| YTEOL | 15 |
| Additional Feature | CAN ALSO BE CONFIGURED IN CURRENT MODE |
| Analog IC - Other Type | SWITCHING CONTROLLER |
| Control Mode | CURRENT/VOLTAGE-MODE |
| Control Technique | PULSE WIDTH MODULATION |
| Input Voltage-Max | 12V |
| Input Voltage-Min | 8.8V |
| Input Voltage-Nom | 12V |
| JESD-30 Code | R-PDSO-G16 |
| JESD-609 Code | e4 |
| Number of Functions | 1 |
| Output Current-Max | 2.2A |
| Output Voltage-Max | 5.15V |
| Output Voltage-Min | 5.05V |
| Output Voltage-Nom | 5.1V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP16,.4 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Supply Current-Max (Isup) | 36mA |
| Supply Voltage-Max (Vsup) | 12V |
| Supply Voltage-Min (Vsup) | 9.2V |
| Supply Voltage-Nom (Vsup) | 12V |
| Surface Mount | YES |
| Switcher Configuration | PUSH-PULL |
| Switching Frequency-Max | 1000kHz |
| Technology | BICMOS |
| 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 2 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
Where can I find the UC2823ADW datasheet?
UC2823ADW Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for UC2823ADW?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the peak gate drive current capability of UC2823ADW, and why does it matter for MOSFET switching?
The UC2823ADW can source and sink up to 2 A of peak gate drive current, allowing it to rapidly charge and discharge MOSFET gate capacitances in the range of 10 nF to 20 nF. Faster switching transitions reduce switching losses at frequencies above 100 kHz, improving overall converter efficiency in high-frequency power supply designs.
What input voltage range does UC2823ADW support, and how does it enable a UVLO startup sequence?
UC2823ADW operates from an input supply of 8.8 V minimum to 12 V nominal, with under-voltage lockout (UVLO) preventing operation below the 8.8 V threshold. This UVLO function ensures the PWM controller only activates once the bias supply has fully charged, protecting against partial-drive conditions that could damage power stage MOSFETs.
How does UC2823ADW compare to voltage-mode controllers in protecting against overcurrent faults?
Unlike pure voltage-mode controllers, UC2823ADW samples the inductor or switch current every switching cycle, enabling cycle-by-cycle current limiting at a programmable threshold set by an external resistor and the internal 1 V current sense comparator reference. This provides faster fault response within 100 ns compared to the several microseconds typical of voltage-mode overcurrent protection schemes.
In which power supply topologies is UC2823ADW most commonly used?
UC2823ADW is most commonly used in flyback converters, forward converters, and push-pull power stages operating at switching frequencies from 100 kHz to 500 kHz. Its 2 A drive strength and current-mode architecture make it a strong choice for isolated DC-DC converters in the 20 W to 200 W power range used in telecom, industrial, and server applications.
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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.
More from Texas Instruments
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 15+ | $19.6000 | $294.00 |
| 120+ | $19.1518 | $2298.22 |
| 280+ | $18.5320 | $5188.95 |
| 500+ | $14.1100 | $7055.00 |
| 1000+ | $13.3300 | $13330.00 |
| 10000+ | $12.5400 | $125400.00 |
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