LM5025ASDX/NOPB Texas Instruments Integrated Circuit (Small Outline No-lead) In Stock
Texas Instruments LM5025ASDX/NOPB is a voltage-mode PWM controller with active clamp for forward converters, featuring 13V to 15V bias supply, 48V nominal bus support, and integrated gate drives in a 16-pin SOIC package.
- Manufacturer
- Texas Instruments
- Package
- Small Outline No-lead
- Pin Count
- 17
- Lifecycle
- ACTIVE
- Datasheet
- LM5025ASDX/NOPB Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $1.7400(MOQ 25)
- 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 LM5025ASDX/NOPB?
- Active clamp topology recycles transformer leakage energy, improving efficiency and reducing voltage stress on the primary switch at 48 V nominal bus
- Voltage-mode PWM control with feed-forward compensation provides excellent line regulation across wide input transients
- Integrated complementary gate drive outputs with programmable deadtime simplify active clamp forward converter design
- 16-pin SOIC package with lead-free construction enables automated SMT assembly in high-volume telecom and server PSU manufacturing
What is LM5025ASDX/NOPB used for?
The LM5025ASDX/NOPB is designed for active clamp forward converters in telecom power infrastructure, server power supplies, and distributed power architectures operating from a 48 V bus. By recycling transformer leakage inductance energy through the clamp switch, it achieves higher efficiency than conventional hard-switching forward topologies, which is critical in data-center power density requirements. The integrated gate drive outputs for both primary and clamp switches reduce external component count and simplify compliance with 80 PLUS efficiency standards in PSU designs.
What are the specifications of LM5025ASDX/NOPB?
| Pbfree Code | Yes |
| YTEOL | 15 |
| Analog IC - Other Type | SWITCHING CONTROLLER |
| Control Mode | VOLTAGE-MODE |
| Control Technique | PULSE WIDTH MODULATION |
| Input Voltage-Max | 15V |
| Input Voltage-Min | 13V |
| Input Voltage-Nom | 48V |
| JESD-30 Code | S-PDSO-N16 |
| JESD-609 Code | e3 |
| Number of Functions | 1 |
| Output Current-Max | 3A |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOLCC16,.2,20 |
| Package Shape | SQUARE |
| Package Style | SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Supply Current-Max (Isup) | 4.2mA |
| Supply Voltage-Max (Vsup) | 15V |
| Supply Voltage-Min (Vsup) | 8V |
| Surface Mount | YES |
| Switcher Configuration | PUSH-PULL |
| Switching Frequency-Max | 1000kHz |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | NO LEAD |
| Terminal Pitch | 0.5mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | Small Outline No-lead |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
Where can I find the LM5025ASDX/NOPB datasheet?
LM5025ASDX/NOPB Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for LM5025ASDX/NOPB?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
Why use an active clamp topology with the LM5025ASDX/NOPB instead of a standard forward converter controller?
The active clamp switch controlled by the LM5025ASDX/NOPB recycles energy stored in the transformer's leakage inductance back to the input bus rather than dissipating it in an RCD snubber; this reduces primary switch voltage stress and improves overall conversion efficiency by 2 to 5 percentage points at full load on a 48 V to 5 V telecom converter.
What bias supply voltage does the LM5025ASDX/NOPB require for reliable IC operation?
The LM5025ASDX/NOPB requires a VCC bias supply between 13 V and 15 V for normal operation; this bootstrapped or auxiliary winding supply powers the internal gate drivers and control logic, and an undervoltage lockout function ensures the IC does not attempt to switch until VCC exceeds the 13 V turn-on threshold, preventing false starts during power-up.
How does the LM5025ASDX/NOPB handle deadtime between primary and clamp gate drive signals?
The LM5025ASDX/NOPB generates complementary gate drive outputs for the primary switch and the active clamp switch with a programmable nonoverlapping deadtime set by an external resistor, typically in the range of 10 ns to 100 ns; proper deadtime prevents shoot-through between the two switches and allows zero-voltage switching transitions that further reduce switching losses at the 48 V nominal bus.
For a 48 V telecom rectifier design, what advantages does the 16-pin SOIC package of the LM5025ASDX/NOPB offer over older DIP-packaged controllers?
The 16-pin SOIC footprint of the LM5025ASDX/NOPB occupies roughly 60 mm² less board area than a comparable DIP-16 package and supports pick-and-place automated assembly on high-density telecom rectifier PCBs; the reduced parasitic inductance in surface-mount interconnects also improves high-frequency gate drive signal integrity at switching frequencies up to several hundred kilohertz.
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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
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 25+ | $2.1500 | $53.75 |
| 100+ | $1.9400 | $194.00 |
| 500+ | $1.8600 | $930.00 |
| 4500+ | $1.7400 | $7830.00 |
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