UC1875J883B Texas Instruments Integrated Circuit (Ceramic Dual-In-Line Packages) In Stock
The UC1875J883B is a phase-shift resonant PWM switching controller from Texas Instruments designed for full-bridge zero-voltage switching power converter topologies, operating from a 10.5 V to 18 V supply. It supports both voltage-mode and current-mode control techniques, provides 4 gate drive outputs for full-bridge FET switching, and is housed in a ceramic 20-pin DIP package rated for -55°C to 125°C. The device is qualified to MIL-883B standards, making it suitable for aerospace, defense, and high-reliability industrial power conversion applications.
- Manufacturer
- Texas Instruments
- Package
- Ceramic Dual-In-Line Packages
- Pin Count
- 20
- Lifecycle
- ACTIVE
- Datasheet
- UC1875J883B 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 UC1875J883B?
- Phase-shift resonant control for zero-voltage switching (ZVS) in full-bridge converters
- Dual control mode: voltage-mode PWM and current-mode operation
- 10.5 V to 18 V operating input voltage range for 12 V bus systems
- 4 gate drive outputs for direct full-bridge MOSFET switching
- Ceramic 20-pin DIP package rated -55°C to 125°C for harsh environments
- MIL-883B qualified for aerospace, defense, and high-reliability applications
- Resonant control technique minimizes switching losses at high frequencies
What is UC1875J883B used for?
The UC1875J883B is targeted at high-reliability full-bridge DC-DC converters used in aerospace and defense power systems where MIL-883B qualification and a -55°C to 125°C temperature range are mandatory requirements. Its phase-shift resonant control enables zero-voltage switching to reduce switching losses in high-power converter stages for radar transmitters, satellite power conditioning units, and military vehicular electronics. Industrial applications such as welding power supplies and high-voltage laboratory power units also benefit from its flexible current/voltage-mode control and robust ceramic package.
What are the specifications of UC1875J883B?
| Pbfree Code | Yes |
| YTEOL | 15 |
| Additional Feature | CAN ALSO BE CONFIGURED IN CURRENT MODE; PWM CONTROL TECHNIQUE ALSO POSSIBLE |
| Analog IC - Other Type | SWITCHING CONTROLLER |
| Control Mode | CURRENT/VOLTAGE-MODE |
| Control Technique | RESONANT CONTROL |
| Input Voltage-Max | 18V |
| Input Voltage-Min | 10.5V |
| Input Voltage-Nom | 12V |
| JESD-30 Code | R-GDIP-T20 |
| JESD-609 Code | e0 |
| Number of Functions | 1 |
| Output Current-Max | 3A |
| Output Voltage-Max | 5.08V |
| Output Voltage-Min | 4.92V |
| Output Voltage-Nom | 5V |
| Package Body Material | CERAMIC, GLASS-SEALED |
| Package Equivalence Code | DIP20,.3 |
| Package Shape | RECTANGULAR |
| Package Style | IN-LINE |
| Qualification Status | Not Qualified |
| Screening Level | MIL-STD-883 Class B |
| Supply Current-Max (Isup) | 30mA |
| Supply Voltage-Max (Vsup) | 18V |
| Supply Voltage-Min (Vsup) | 10.75V |
| Supply Voltage-Nom (Vsup) | 12V |
| Surface Mount | NO |
| Switcher Configuration | PHASE-SHIFT |
| Switching Frequency-Max | 1000kHz |
| Technology | BIPOLAR |
| 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 UC1875J883B datasheet?
UC1875J883B Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for UC1875J883B?
Compatible alternatives and drop-in replacements for UC1875J883B:
Switching Controller, Current/voltage-mode, 3A, 1000kHz Switching Freq-Max, BIPolar, PDIP20
Frequently Asked Questions
How does phase-shift resonant control in the UC1875J883B reduce switching losses compared to hard-switched PWM controllers?
The UC1875J883B uses phase-shift resonant control to achieve zero-voltage switching (ZVS) transitions on all 4 FETs of a full-bridge converter, meaning each MOSFET turns on when its drain-to-source voltage is near 0 V. This eliminates the capacitive discharge losses that occur at turn-on in hard-switched converters operating above 100 kHz, significantly reducing thermal stress and enabling higher switching frequencies with improved efficiency in the 10.5 V to 18 V input range.
Why is the ceramic 20-pin DIP package important for the UC1875J883B in military and aerospace designs?
Ceramic DIP packages withstand the -55°C to 125°C temperature extremes, thermal cycling, vibration, and moisture environments encountered in avionics and military ground vehicles, far better than plastic packages rated only to 85°C or 105°C. The UC1875J883B's ceramic 20-pin DIP package combined with MIL-883B qualification ensures the controller meets military screening tests including high-temperature storage, thermal shock, and fine-leak hermeticity, which are mandatory for many DO-254 and MIL-PRF-38534 system certifications.
Can the UC1875J883B be configured for current-mode control instead of voltage-mode PWM?
Yes, the UC1875J883B supports both voltage-mode and current-mode operation; the additional feature note specifies it can be configured in current-mode by connecting an appropriate sense resistor or current transformer in the power stage and routing the signal to the current sense input. Current-mode control improves line transient response and provides inherent cycle-by-cycle over-current limiting for full-bridge converters operating from a 12 V nominal bus, simplifying the outer voltage loop compensation design.
What makes the UC1875J883B appropriate for a satellite DC-DC power conditioning unit?
Satellite power conditioning units require components that survive radiation-adjacent harsh environments, pass MIL-883B screening, and operate reliably from -55°C to 125°C across the full orbital thermal cycle. The UC1875J883B's phase-shift resonant topology reduces heat dissipation in sealed enclosures where convective cooling is unavailable, while its hermetically sealed ceramic DIP package and dual voltage/current-mode control flexibility meet the strict reliability and adaptability requirements of space-grade 12 V bus power converters.
Related Guides
STM32H725IGT3 Selection Guide: Memory, Package, Temperature, and Supply
Choose the right STM32H725 variant by comparing Flash, package, pin count, temperature grade, connectivity, and production requirements.
Aug 1, 2026
STM32H725IGT3 High-Performance MCU Design Guide
Design STM32H725IGT3 systems for reliable 550 MHz operation with practical power, clock, cache, DMA, PCB, ADC, and recovery guidance.
Jul 31, 2026
150141VS73100 Violet SMD LED Selection Guide: Color, Drive, and Sourcing
Select the 150141VS73100 by wavelength, brightness, drive current, 3528 fit, reliability, and traceable sourcing requirements.
Jul 31, 2026
STEF05SGR 5 V eFuse Protection Design Guide
Design a reliable 5 V STEF05SGR eFuse stage with current-limit math, capacitor sizing, thermal analysis, fault recovery, and PCB layout guidance.
Jul 30, 2026
Why Buy from FindMyChip
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
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“FindMyChip sourced our entire STM32 BOM in 48 hours when our usual distributor had 16-week lead times.”
You May Also Like
ACS770ECB-200U-PFF-T
Allegro Microsystems
Integrated Circuit
ACS770KCB-150U-PFF-T
Allegro Microsystems
Integrated Circuit
MC33901WEF
NXP
Integrated Circuit
MC7808BDTRKG
ON Semiconductor
Integrated Circuit
PA94EC
Apex Microtechnology
Integrated Circuit
AP7315-28SR-7
Diodes Inc.
Integrated Circuit
74HCT245D
Nexperia
Integrated Circuit
CY62256VNLL-70ZXCT
Cypress Semiconductor
Integrated Circuit
EPM7032AETC44-4N
Intel
Integrated Circuit
EPM3512AQC208-10N
Intel
Integrated Circuit
EPM3256ATC144-7N
Intel
Integrated Circuit
EPM3256AQC208-7N
Intel
Integrated Circuit
EPM3256AQC208-10N
Intel
Integrated Circuit
EPM3128ATC100-7N
Intel
Integrated Circuit
EPM1270F256C4N
Intel
Integrated Circuit
EPF8282ATC100-4N
Intel
Integrated Circuit
EPF6016QC208-2N
Intel
Integrated Circuit
EPF6016ATC144-3N
Intel
Integrated Circuit
EPF10K30ATC144-3N
Intel
Integrated Circuit
EPC2TI32N
Intel
Integrated Circuit
EPC2LC20
Intel
Integrated Circuit
EP3SL150F1152C4N
Intel
Integrated Circuit
EP2SGX60DF780C5N
Intel
Integrated Circuit
EP2SGX60CF780C5N
Intel
Integrated Circuit