UC1875JQMLV Texas Instruments Integrated Circuit (Dual-In-Line Packages) In Stock
UC1875JQMLV is a phase-shift resonant PWM controller from Texas Instruments designed for high-efficiency DC-DC power conversion. Features voltage-mode control with 11V to 20V input range, resonant control technique, and 20-pin ceramic DIP package. In-stock globally with fast worldwide shipping for demanding power supply designs.
- Manufacturer
- Texas Instruments
- Package
- Dual-In-Line Packages
- Pin Count
- 20
- Lifecycle
- OBSOLETE
- Datasheet
- UC1875JQMLV 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
Key Features
- Phase-shift resonant control technique enabling zero-voltage switching (ZVS) for high-efficiency full-bridge DC-DC converters
- Configurable current-mode or voltage-mode operation providing design flexibility for a wide range of power topologies
- 11V to 20V input voltage range with 20-pin ceramic DIP packaging for rugged military and industrial environments
Applications
The UC1875JQMLV is designed for high-efficiency isolated DC-DC converters in telecommunications, server power supplies, and industrial power systems where switching losses must be minimized. Its phase-shift full-bridge topology enables zero-voltage switching, reducing EMI and improving efficiency at high power levels. The ceramic DIP package and extended temperature capability make it suitable for military and aerospace power conversion applications.
Specifications
| YTEOL | 0 |
| Additional Feature | CAN ALSO BE CONFIGURED IN CURRENT MODE |
| Analog IC - Other Type | SWITCHING CONTROLLER |
| Control Mode | VOLTAGE-MODE |
| Control Technique | RESONANT CONTROL |
| Input Voltage-Max | 20V |
| Input Voltage-Min | 11V |
| Input Voltage-Nom | 12V |
| JESD-30 Code | R-GDIP-T20 |
| Number of Functions | 1 |
| Output Current-Max | 3A |
| Package Body Material | CERAMIC, GLASS-SEALED |
| Package Equivalence Code | LCC28,.45SQ |
| Package Shape | RECTANGULAR |
| Package Style | IN-LINE |
| Qualification Status | Not Qualified |
| Screening Level | MIL-PRF-38535 Class V |
| Supply Current-Max (Isup) | 44mA |
| Surface Mount | NO |
| Switcher Configuration | PHASE-SHIFT |
| Switching Frequency-Max | 2000kHz |
| Technology | BIPOLAR |
| Temperature Grade | MILITARY |
| Terminal Form | THROUGH-HOLE |
| Terminal Pitch | 2.54mm |
| Terminal Position | DUAL |
| Package | Dual-In-Line Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for UC1875JQMLV:
Switching Controller, Current/voltage-mode, 3A, 1000kHz Switching Freq-Max, BIPolar, CDIP20
Switching Controller, Current/voltage-mode, 3A, 1000kHz Switching Freq-Max, BIPolar, CDIP20
Frequently Asked Questions
What control modes does the UC1875JQMLV support?
The UC1875JQMLV primarily operates in voltage-mode control but can also be configured for current-mode control. This dual configurability gives power supply designers flexibility to optimize loop response and protection features for different load and topology requirements.
What is the input voltage range for the UC1875JQMLV?
The UC1875JQMLV operates with an input voltage range of 11V minimum to 20V maximum, with a nominal input of 12V. This range is well-suited for standard 12V bus architectures common in telecom and server power distribution systems.
What package does the UC1875JQMLV use and what applications is it designed for?
The UC1875JQMLV uses a 20-pin ceramic dual in-line package (CERDIP), designated JESD-30 code R-GDIP-T20. The ceramic package provides superior reliability under extreme temperatures and humidity, making it appropriate for military, aerospace, and high-reliability industrial power converter designs.
How does the phase-shift resonant control technique improve converter efficiency?
Phase-shift resonant control achieves zero-voltage switching (ZVS) by controlling the phase difference between gate drive signals in a full-bridge converter. ZVS eliminates switching losses at turn-on transitions, significantly improving efficiency, reducing heat generation, and allowing higher switching frequencies without efficiency penalties.
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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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