UCC1805J883B Texas Instruments Integrated Circuit (Ceramic Dual-In-Line Packages) In Stock
UCC1805J883B is a low-power BiCMOS current-mode PWM controller in an 8-pin ceramic DIP package, operating from a 4 V to 12 V supply and designed for MIL-STD-883 grade switching power supply applications. It features cycle-by-cycle current limiting, soft-start, and programmable oscillator frequency for DC-DC converter designs.
- Manufacturer
- Texas Instruments
- Package
- Ceramic Dual-In-Line Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- UCC1805J883B Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -55.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of UCC1805J883B?
- Current-mode PWM control with cycle-by-cycle current limiting
- Low startup and operating supply current for energy-efficient designs
- Operating input voltage range 4 V to 12 V
- Programmable oscillator frequency via external R/C components
- Soft-start function to reduce inrush current at power-up
- 8-pin ceramic DIP package (CDIP-8) for high-reliability environments
- MIL-STD-883B qualified for military and aerospace applications
- BiCMOS process combining high-speed bipolar outputs with low-power CMOS logic
What is UCC1805J883B used for?
UCC1805J883B targets high-reliability DC-DC converter designs in military, aerospace, and space applications where MIL-STD-883 qualification is mandatory. The current-mode control architecture makes it well-suited for isolated flyback and forward converter topologies in avionics power supplies, radar modules, and ruggedized industrial systems. It is also used in ground support equipment and satellite power conditioning units requiring stable PWM regulation across wide temperature ranges.
What are the specifications of UCC1805J883B?
| 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 |
| Screening Level | MIL-STD-883 Class B |
| 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 |
| Package | Ceramic Dual-In-Line Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
Where can I find the UCC1805J883B datasheet?
UCC1805J883B Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for UCC1805J883B?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What input voltage range does UCC1805J883B support for PWM switching operation?
UCC1805J883B operates from a 4 V minimum to 12 V maximum input supply, with a nominal design point of 10 V. This range allows it to be powered directly from regulated bus voltages commonly found in military and aerospace DC-DC converter systems over a -55°C to +125°C temperature range.
For which reliability standard is UCC1805J883B qualified, and why does that matter for aerospace designs?
The device is qualified to MIL-STD-883B, the US military standard for microcircuit test methods, ensuring it meets rigorous thermal, mechanical shock, and radiation screening requirements. This qualification is mandatory for avionics, satellite power converters, and defense electronics where component failure tolerance is near zero.
How does the current-mode control of UCC1805J883B improve loop stability compared to voltage-mode PWM?
Current-mode control senses the inductor current each switching cycle and uses it as a direct feedback ramp, inherently providing cycle-by-cycle current limiting and simplifying the compensation network. UCC1805J883B adds a soft-start capacitor pin to limit inrush current at startup, reducing stress on power components in 4 V to 12 V flyback and forward topologies.
What package does UCC1805J883B use, and how does it differ from plastic DIP versions of the same controller family?
UCC1805J883B is housed in an 8-pin ceramic DIP (CDIP-8) package, which withstands higher operating temperatures and provides hermeticity for moisture-sensitive environments, unlike standard plastic DIP packages rated to only +85°C. The ceramic package meets the mechanical requirements of MIL-STD-883B screening for military hardware.
Can the switching frequency of UCC1805J883B be programmed, and what sets the oscillator timing?
Yes, the oscillator frequency is set by external resistor and capacitor values connected to the RT and CT pins, allowing designers to program switching frequencies from tens of kilohertz up to several hundred kilohertz. Selecting the correct R/C values optimizes transformer size and switching losses in DC-DC converter applications operating from 4 V to 12 V rails.
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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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