UCC1805J Texas Instruments (DIP) In Stock
UCC1805J is a current-mode PWM switching controller by Texas Instruments in a DIP-8 package. Key specs: 4 V to 12 V input voltage range, pulse-width modulation control. Available from stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- —
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- UCC1805J Datasheet PDF
- Temp Range
- -55.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Current-mode PWM control topology for inherent cycle-by-cycle overcurrent limiting and improved line rejection
- Wide 4 V to 12 V input voltage range with 10 V nominal operation suitable for a variety of power supply designs
- DIP-8 through-hole package for easy prototyping and replacement in industrial switching power supply designs
Applications
The UCC1805J is designed for current-mode PWM switching power supplies including flyback, forward, and boost converters operating from 4 V to 12 V inputs. It is widely used in industrial power supplies, DC-DC converters, and UPS systems where robust cycle-by-cycle current limiting and pulse-width modulation are essential.
Specifications
| Pbfree Code | Yes |
| YTEOL | 15 |
| Analog IC - Other Type | SWITCHING CONTROLLER |
| Control Mode | CURRENT-MODE |
| Control Technique | PULSE WIDTH MODULATION |
| Input Voltage-Max | 12V |
| Input Voltage-Min | 4V |
| Input Voltage-Nom | 10V |
| JESD-30 Code | R-GDIP-T8 |
| JESD-609 Code | e0 |
| Number of Functions | 1 |
| Output Current-Max | 1A |
| Package Body Material | CERAMIC, GLASS-SEALED |
| Package Equivalence Code | DIP8,.3 |
| Package Shape | RECTANGULAR |
| Package Style | IN-LINE |
| Qualification Status | Not Qualified |
| Supply Current-Max (Isup) | 25mA |
| Supply Voltage-Max (Vsup) | 12V |
| Supply Voltage-Nom (Vsup) | 10V |
| Surface Mount | NO |
| Switcher Configuration | BUCK-BOOST |
| Switching Frequency-Max | 1000kHz |
| Technology | BICMOS |
| Temperature Grade | MILITARY |
| Terminal Finish | Tin/Lead (Sn/Pb) |
| Terminal Form | THROUGH-HOLE |
| Terminal Pitch | 2.54mm |
| Terminal Position | DUAL |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What control technique does the UCC1805J use, and why does it improve power supply stability?
The UCC1805J uses current-mode pulse-width modulation (PWM) control, which provides inherent cycle-by-cycle current limiting and a single-pole output filter response. This results in faster transient response and simpler loop compensation compared to voltage-mode controllers in flyback or forward converter topologies.
What input voltage range does the UCC1805J support for switching controller operation?
The UCC1805J operates with an input voltage from 4 V minimum to 12 V maximum, with a nominal operating voltage of 10 V. This range makes it compatible with standard 5 V and 12 V logic supply rails commonly found in industrial and computing power supply systems.
For a prototype flyback converter board, what advantage does the UCC1805J's DIP-8 package offer compared to surface-mount alternatives?
The UCC1805J's DIP-8 through-hole package (8-pin, 7.62 mm row spacing) allows direct insertion into breadboards and prototype sockets, eliminating the need for SMD soldering tools during early design validation. This speeds up development cycles and simplifies field replacement in rugged industrial environments.
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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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