LM5041BMTC Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
Texas Instruments LM5041BMTC is a cascaded current-mode PWM switching controller supporting 15V to 90V input in a 16-pin SOIC package. Nominal 48V operation makes it suitable for telecom and industrial power supply cascades.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 16
- Lifecycle
- OBSOLETE
- Datasheet
- LM5041BMTC Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of LM5041BMTC?
- Wide input range from 15V to 90V with 48V nominal supports telecom and industrial power bus voltages
- Current-mode PWM control enables cycle-by-cycle peak current limiting for robust fault protection
- Cascaded topology support allows master-slave power stage arrangement for higher output power
- 16-pin SOIC plastic package simplifies layout on standard FR4 industrial power boards
- Single-function switching controller IC focuses all silicon area on reliable PWM generation
What is LM5041BMTC used for?
The LM5041BMTC is designed for cascaded power conversion stages in telecom rectifiers, industrial 48V bus converters, and distributed power architectures where a front-end PFC stage feeds into a downstream DC/DC converter. Its wide 15V to 90V input range accommodates both the nominal 48V telecom bus and the higher voltages present during transient conditions or input source variations. Current-mode PWM control with cascaded topology support allows designers to extend output power by paralleling multiple controlled power stages.
What are the specifications of LM5041BMTC?
| YTEOL | 0 |
| Analog IC - Other Type | SWITCHING CONTROLLER |
| Control Mode | CURRENT-MODE |
| Control Technique | PULSE WIDTH MODULATION |
| Input Voltage-Max | 90V |
| Input Voltage-Min | 15V |
| Input Voltage-Nom | 48V |
| JESD-30 Code | R-PDSO-G16 |
| Number of Functions | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, THIN PROFILE, SHRINK PITCH |
| Qualification Status | Not Qualified |
| Supply Current-Max (Isup) | 4mA |
| Surface Mount | YES |
| Switcher Configuration | PUSH-PULL |
| Switching Frequency-Max | 685kHz |
| Technology | BICMOS |
| Temperature Grade | AUTOMOTIVE |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.65mm |
| Terminal Position | DUAL |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
Where can I find the LM5041BMTC datasheet?
LM5041BMTC Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for LM5041BMTC?
Compatible alternatives and drop-in replacements for LM5041BMTC:
Switching Controller, Current-mode, 0.1A, 1000kHz Switching Freq-Max, PDSO16
Frequently Asked Questions
How does LM5041BMTC handle input voltage variations in a 48V telecom bus system?
The LM5041BMTC accepts input voltages from 15V to 90V, providing substantial headroom above and below the nominal 48V telecom bus. This wide range accommodates load dump transients that can spike bus voltages well above 60V in power distribution units, and also tolerates deeply discharged battery backup conditions that can cause the bus to sag toward 40V without disrupting regulated output stages.
What protection does current-mode PWM control provide in LM5041BMTC cascade designs?
Current-mode control in the LM5041BMTC samples the inductor or transformer primary current every switching cycle and terminates the PWM pulse immediately if a programmed peak current threshold is exceeded. This cycle-by-cycle current limiting protects power switch transistors from saturation during startup inrush and overload conditions, preventing destructive shoot-through in cascaded two-stage topologies operating at 48V to 90V input.
Which power topology benefits most from LM5041BMTC cascaded controller architecture?
The LM5041BMTC cascaded architecture is particularly effective in two-stage power supplies where a front-end active PFC or bus converter feeds a second-stage isolated DC/DC converter. By coordinating the PWM timing of both stages, cascaded control reduces output capacitance requirements and improves dynamic load regulation compared to independently controlled stages, making it a compelling choice for 300W to 600W server power supply units operating from a 48V intermediate bus.
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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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