UC1845AJ883B Texas Instruments Integrated Circuit (Dual-In-Line Packages) In Stock
The UC1845AJ883B is a current-mode PWM controller IC from Texas Instruments, operating from 8.2V to 25V input and rated for -55°C to +125°C in a military-grade ceramic 8-pin DIP package. It provides precise pulse-width modulation control for high-reliability switching power supply designs. In stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Dual-In-Line Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- UC1845AJ883B Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -55.0°C to 125.0°C
- RoHS
- Non-compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of UC1845AJ883B?
- Military-grade MIL-STD-883B qualification supports use in aerospace, defense, and high-reliability power systems
- Current-mode PWM control technique provides inherent cycle-by-cycle current limiting and improved transient response
- Wide operating temperature range from -55°C to +125°C ensures reliable performance in extreme environments
- 8.2V to 25V input voltage range with 15V nominal allows flexible integration into various power architectures
What is UC1845AJ883B used for?
The UC1845AJ883B is designed for military, aerospace, and high-reliability industrial switching power supplies where current-mode PWM control is required over wide temperature extremes. It is used in DC-DC converters, flyback regulators, and forward converters in avionics, defense electronics, and space-qualified power systems. Its MIL-STD-883B rating and ceramic DIP package make it a trusted choice for harsh-environment power management.
What are the specifications of UC1845AJ883B?
| Pbfree Code | Yes |
| Reach Compliance Code | Not Compliant |
| YTEOL | 15 |
| Analog IC - Other Type | SWITCHING CONTROLLER |
| Control Mode | CURRENT-MODE |
| Control Technique | PULSE WIDTH MODULATION |
| Input Voltage-Max | 25V |
| Input Voltage-Min | 8.2V |
| Input Voltage-Nom | 15V |
| JESD-30 Code | R-GDIP-T8 |
| JESD-609 Code | e0 |
| 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 | 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) | 25V |
| Supply Voltage-Min (Vsup) | 12V |
| Supply Voltage-Nom (Vsup) | 11V |
| Surface Mount | NO |
| Switcher Configuration | BUCK-BOOST |
| Switching Frequency-Max | 500kHz |
| Technology | BIPOLAR |
| Temperature Grade | MILITARY |
| Terminal Finish | Tin/Lead (Sn/Pb) |
| Terminal Form | THROUGH-HOLE |
| Terminal Pitch | 2.54mm |
| Terminal Position | DUAL |
| Package | Dual-In-Line Packages |
Compliance & Regulatory
| RoHS Status | Non-compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
Where can I find the UC1845AJ883B datasheet?
UC1845AJ883B Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for UC1845AJ883B?
Compatible alternatives and drop-in replacements for UC1845AJ883B:
Switching Controller, Current-mode, 1A, 500kHz Switching Freq-Max, BIPolar, CDIP8
Power and Hybrid / Semelab Limited Switching Controller, Current-mode, 1A, 500kHz Switching Freq-Max, BIPolar, CDIP8
Frequently Asked Questions
What control method does the UC1845AJ883B use and what are its benefits?
The UC1845AJ883B uses current-mode pulse-width modulation (PWM) control. This technique allows cycle-by-cycle current limiting, simplifies loop compensation, and provides faster transient response compared to voltage-mode control, which is critical in high-reliability power supply designs.
What is the operating voltage and temperature range of the UC1845AJ883B?
The UC1845AJ883B operates with an input voltage from 8.2V minimum to 25V maximum, with a 15V nominal supply. It is rated for a -55°C to +125°C temperature range, making it suitable for demanding military and aerospace environments.
What qualification standard does the UC1845AJ883B meet?
The UC1845AJ883B is qualified to MIL-STD-883B, the military standard for microelectronic testing. This qualification ensures the device meets stringent reliability and performance requirements for use in defense, aerospace, and high-reliability industrial systems.
What package does the UC1845AJ883B use?
The UC1845AJ883B is packaged in an 8-pin ceramic DIP (JESD-30 code R-GDIP-T8). The ceramic construction provides hermetic sealing and excellent thermal performance, making it ideal for high-reliability and harsh-environment applications.
What types of power supply topologies can use the UC1845AJ883B?
The UC1845AJ883B is suitable for flyback, forward, and other isolated or non-isolated DC-DC converter topologies that benefit from current-mode PWM control. It is widely used in single-switch converter designs for avionics, military power modules, and industrial control power supplies.
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