SG3524DG4 Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
SG3524DG4 is a voltage-mode PWM switching controller from Texas Instruments operating across an 8 V to 40 V input range at up to 450 kHz with 100 mA output drive. It delivers reliable pulse-width modulation control in a 16-pin SOIC package for compact DC-DC converter designs.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 16
- Lifecycle
- OBSOLETE
- Datasheet
- SG3524DG4 Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- ?°C to 70.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Voltage-mode PWM control with up to 450 kHz switching frequency enables compact, high-efficiency DC-DC converter designs
- Wide 8 V to 40 V input range supports diverse power supply architectures from automotive 12 V rails to industrial 24 V and 36 V buses
- 100 mA gate drive output in a 16-pin SOIC simplifies board layout and reduces external driver requirements in switching power supplies
Applications
SG3524DG4 is used as a PWM controller in push-pull, half-bridge, and forward converter topologies for industrial power supplies and DC-DC converters. Its 8 V to 40 V input range and 450 kHz capability make it a strong fit for 12 V to 24 V bus-powered SMPS designs in telecom and factory automation equipment. The device is also applied in UPS and battery charger circuits where regulated voltage-mode control across wide input conditions is essential.
Specifications
| YTEOL | 0 |
| Analog IC - Other Type | SWITCHING CONTROLLER |
| Control Mode | VOLTAGE-MODE |
| Control Technique | PULSE WIDTH MODULATION |
| Input Voltage-Max | 40V |
| Input Voltage-Min | 8V |
| Input Voltage-Nom | 20V |
| JESD-30 Code | R-PDSO-G16 |
| JESD-609 Code | e4 |
| Number of Functions | 1 |
| Output Current-Max | 0.1A |
| Output Voltage-Max | 5.4V |
| Output Voltage-Min | 4.6V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP16,.25 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Supply Voltage-Nom (Vsup) | 20V |
| Surface Mount | YES |
| Switcher Configuration | PUSH-PULL |
| Switching Frequency-Max | 450kHz |
| Technology | BIPOLAR |
| Temperature Grade | COMMERCIAL |
| Terminal Finish | NICKEL PALLADIUM GOLD |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for SG3524DG4:
Switching Controller, Voltage-mode, 0.1A, 722kHz Switching Freq-Max, BIPolar, PDSO16
Switching Controller, Voltage-mode, 0.1A, 400kHz Switching Freq-Max, BIPolar, PDSO16
Switching Controller, Voltage-mode, 0.1A, 450kHz Switching Freq-Max, BIPolar, PDSO16
Frequently Asked Questions
What switching frequency can SG3524DG4 operate at and how does this affect power supply size?
SG3524DG4 supports PWM switching frequencies up to 450 kHz. Higher switching frequencies allow designers to use smaller inductors and filter capacitors, reducing overall power supply size and weight. At 450 kHz, transformer and output filter components can be significantly miniaturized compared to designs running at 50 kHz to 100 kHz.
Over what input voltage range can SG3524DG4 operate, and which industrial bus voltages does it support?
SG3524DG4 operates from 8 V to 40 V input, with a nominal voltage of 20 V. This range covers 12 V automotive and consumer rails, 24 V industrial bus voltages, and 36 V battery pack applications, making it a versatile voltage-mode PWM controller for multi-market power supply designs.
How does SG3524DG4 compare to current-mode controllers when used in a forward converter topology?
SG3524DG4 uses voltage-mode PWM control, which offers simpler external compensation compared to current-mode controllers in forward converter designs. At up to 450 kHz and 100 mA gate drive, it can directly drive power MOSFETs in a forward converter without an additional gate driver IC, reducing BOM cost and PCB area for low-to-mid power supply designs up to several hundred watts.
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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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