TL598CDG4 Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
TL598CDG4 is a voltage-mode PWM controller IC from Texas Instruments housed in a 16-pin SOIC package. It accepts 7 V to 40 V input, delivers up to 200 mA gate drive, and suits offline and DC-DC power supply designs. Available in tube packaging for production line use.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 16
- Lifecycle
- OBSOLETE
- Datasheet
- TL598CDG4 Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- ?°C to 70.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of TL598CDG4?
- Voltage-mode PWM control with 7 V to 40 V input range and 200 mA totem-pole output drive in a 16-pin SOIC package
- Adjustable switching frequency via external RC network with dead-time control for safe transformer-based converter design
- Integrated under-voltage lockout, soft-start, and current-limiting functions reduce external component count in power supply designs
What is TL598CDG4 used for?
TL598CDG4 is well-suited for offline flyback and forward converters operating from rectified 12 V to 40 V bus rails in power adapters and industrial SMPS units. Its voltage-mode control architecture with programmable dead time supports push-pull and bridge topologies in DC-DC converters delivering up to a few hundred watts. The 16-pin SOIC footprint enables compact PCB layouts for embedded power supply modules in telecom and industrial equipment.
What are the specifications of TL598CDG4?
| YTEOL | 0 |
| Analog IC - Other Type | SWITCHING CONTROLLER |
| Control Mode | VOLTAGE-MODE |
| Control Technique | PULSE WIDTH MODULATION |
| Input Voltage-Max | 40V |
| Input Voltage-Min | 7V |
| Input Voltage-Nom | 15V |
| JESD-30 Code | R-PDSO-G16 |
| JESD-609 Code | e4 |
| Number of Functions | 1 |
| Output Current-Max | 0.25A |
| 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 Current-Max (Isup) | 26mA |
| Surface Mount | YES |
| Switcher Configuration | PUSH-PULL |
| Switching Frequency-Max | 300kHz |
| 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 |
Where can I find the TL598CDG4 datasheet?
TL598CDG4 Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for TL598CDG4?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the maximum gate drive current of TL598CDG4 and how does that affect MOSFET selection in a converter?
TL598CDG4 provides up to 200 mA source and sink current from its totem-pole output stage. This level can directly drive power MOSFETs with gate charge up to about 100 nC at 100 kHz switching frequency, eliminating a discrete gate driver in designs operating below 40 V input. For larger MOSFETs exceeding 200 mA peak drive, a buffer transistor should be added.
How does the input voltage range of TL598CDG4 compare to competing controllers for 24 V industrial bus designs?
TL598CDG4 accepts 7 V to 40 V, making it directly suitable for 24 V industrial bus applications with a comfortable margin above the nominal rail. Many competing controllers stop at 30 V input, requiring additional pre-regulation for 24 V bus applications where transients can reach 36 V. The 40 V maximum also covers 28 V avionics bus designs without a separate regulator stage.
For a push-pull DC-DC converter design, how does TL598CDG4 handle dead-time between the two output switches?
TL598CDG4 includes programmable dead-time control: an external resistor on the dead-time pin sets the minimum time between the two output transistors, preventing simultaneous conduction and transformer core saturation. Typical dead time ranges from 0% to 100% of the oscillator period, allowing designers to configure 200 ns to several microseconds of dead time depending on the switching frequency set by the external RC oscillator network.
What packaging options are available for TL598CDG4 and how does the tube format affect procurement lead times?
TL598CDG4 ships in a 16-pin SOIC (150 mil body) in tube packaging, with the G4 suffix confirming RoHS e4 compliance (lead-free solder). Tube format typically holds 40 to 50 units per tube, suiting prototype and small-batch production. For high-volume runs exceeding 2,500 units, the tape-and-reel variant reduces pick-and-place cycle time and is available as a separate orderable part number.
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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.
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