UCC24612-1DBVR
AC to DC Switching Converter Flyback 4.87V 1000kHz T/R 5-Pin SOT-23
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Part Number : UCC24612-1DBVR
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Package/Case : SOT-23-5
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Brands : TI
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Components Categories : Power Supply Controllers, Monitors
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Datesheet : UCC24612-1DBVR DataSheet (PDF)
Overview of UCC24612-1DBVR
UCC24612 is a high performance synchronous rectifier controller and driver for standard and logic-level N-channel MOSFET power devices. By implementing a near-ideal diode emulation UCC24612 reduces losses of the output rectifier and indirectly the primary side losses. The drain to source (VDS) sensing control scheme allows UCC24612 to work with multiple topologies, such as Active Clamp Flyback, QR/DCM/CCM Flyback and LLC, et.
Integrated features simplify the design effort, enabling UCC24612 to excel in a variety of applications and frequencies. The wide operating VDD and VD voltage ranges enable simple implementation in systems with outputs up to 28 V. Efficiency and noise immunity is enhanced with adaptive minimum off-time. Variants UCC24612-1 and UCC24612-2 offer different minimum on-times to provide additional noise immunity. Robust operation in continuous conduction mode (CCM) is further enhanced with proportional gate-drive and CCM cycle limit pre-turn-off.
UCC24612 has multiple features that improve efficiency. The fast comparator with short propagation delays reduces switching loss. The 9.5-V gate drive clamp reduces MOSFET driving losses. Frequency dependent standby modes further decreases standby power. These features help UCC24612 be part of a greater system that meets stringent efficiency standards such as Department of Energy (DoE) Level VI and Code of Conduct (CoC) Tier 2.
UCC24612 is available in a SOT23-5 package.
Key Features
- Supports Topologies such as Active Clamp Flyback, QR, DCM, CCM Flyback and LLC
- MOSFET VDS Sensing up to 230 V
- Operating Frequency Up to 1 MHz
- 1 MHz for UCC24612-1
- 800 kHz for UCC24612-2
- Wide VDD Range Allows for Direct Bias from 5-V to 28-V Output Systems
- 4-A Sink, 1-A Source Gate Driver with Proportional Gate Drive
- Adaptive Minimum Off-time for Increased Noise Immunity
- Cycle Limit Pre-Turn-off Improves Efficiency in CCM
- High or Low-Side Configurable
- Automatic Light-Load and Sleep-Mode Management with 320-µA standby current
- 16-ns Typical Turnoff Propagation Delay
- 9.5-V Gate Drive Clamp for Reduced Driving Loss
Specifications
The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.
| Source Content uid | UCC24612-1DBVR | Pbfree Code | Yes |
| Rohs Code | Yes | Part Life Cycle Code | Active |
| Ihs Manufacturer | TEXAS INSTRUMENTS INC | Package Description | LSSOP, |
| Reach Compliance Code | compliant | ECCN Code | EAR99 |
| Date Of Intro | 2018-02-08 | Samacsys Manufacturer | Texas Instruments |
| Analog IC - Other Type | SWITCHING CONTROLLER | Control Technique | RESONANT CONTROL |
| Input Voltage-Max | 28 V | Input Voltage-Min | 4 V |
| Input Voltage-Nom | 12 V | JESD-30 Code | R-PDSO-G5 |
| JESD-609 Code | e4 | Length | 2.9 mm |
| Moisture Sensitivity Level | 1 | Number of Functions | 1 |
| Number of Terminals | 5 | Operating Temperature-Max | 125 °C |
| Operating Temperature-Min | -40 °C | Output Current-Max | 4 A |
| Package Body Material | PLASTIC/EPOXY | Package Code | LSSOP |
| Package Shape | RECTANGULAR | Package Style | SMALL OUTLINE, LOW PROFILE, SHRINK PITCH |
| Peak Reflow Temperature (Cel) | 260 | Seated Height-Max | 1.45 mm |
| Supply Voltage-Max (Vsup) | 28 V | Supply Voltage-Min (Vsup) | 4 V |
| Surface Mount | YES | Switcher Configuration | SINGLE |
| Switching Frequency-Max | 1000 kHz | Temperature Grade | AUTOMOTIVE |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) | Terminal Form | GULL WING |
| Terminal Pitch | 0.95 mm | Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | NOT SPECIFIED | Width | 1.6 mm |
| Topology | Active-clamp flyback, Active-clamp forward, CCM, DCM, Forward, Full bridge, Half bridge, LLC, Quasi resonant | UVLO thresholds on/off (V) | 4.5/4 |
| Switching frequency (max) (kHz) | 1000 | Features | 1 MHz operation, 800 kHz operation, Adaptive Minimum Off-time, Automatic light load and sleep mode, High or low-side configurable, Proportional gate drive, Synchronous Rectifier |
| Operating temperature range (°C) | -40 to 125 | Control mode | VDS sensing |
| Device type | Controllers | Rating | Catalog |
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