UCC24612 Series
High-frequency multi-mode synchronous rectifier controller
Manufacturer: Texas Instruments
Catalog(4 parts)
| Part | Voltage - Input▲▼ | Voltage - Input▲▼ | Operating Temperature▲▼ | Operating Temperature▲▼ | Applications | Supplier Device Package | Package / Case | Current - Supply▲▼ | Mounting Type | Board Type | Regulator Topology | Outputs and Type | Outputs and Type▲▼ | Supplied Contents | Utilized IC / Part | Voltage - Output▲▼ | Voltage - Output▲▼ | Main Purpose | Current - Output▲▼ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
28 V | 4 V | 125 °C | -40 °C | Adapters | SOT-23-5 | SC-74A, SOT-753 | 4 A | Surface Mount | |||||||||||
28 V | 4 V | 125 °C | -40 °C | Adapters | SOT-23-5 | SC-74A, SOT-753 | 4 A | Surface Mount | |||||||||||
Texas Instruments UCC24612-1EVMUCC24612-1 - AC/DC, Secondary Side 1, Non-Isolated Outputs Evaluation Board | Fully Populated | Flyback | Non-Isolated | 1 ul | Board(s) | UCC24612-1 | 265 Vrms | 85 Vrms | AC/DC, Secondary Side | 5 A | |||||||||
28 V | 4 V | 125 °C | -40 °C | Adapters | SOT-23-5 | SC-74A, SOT-753 | 4 A | Surface Mount |
Key Features
• Supports Topologies such as Active Clamp Flyback, QR, DCM, CCM Flyback and LLCMOSFET VDSSensing up to 230 VOperating Frequency Up to 1 MHz1 MHz for UCC24612-1800 kHz for UCC24612-2Wide VDD Range Allows for Direct Bias from 5-V to 28-V Output Systems4-A Sink, 1-A Source Gate Driver with Proportional Gate DriveAdaptive Minimum Off-time for Increased Noise ImmunityCycle Limit Pre-Turn-off Improves Efficiency in CCMHigh or Low-Side ConfigurableAutomatic Light-Load and Sleep-Mode Management with 320-µA standby current16-ns Typical Turnoff Propagation Delay9.5-V Gate Drive Clamp for Reduced Driving LossSupports Topologies such as Active Clamp Flyback, QR, DCM, CCM Flyback and LLCMOSFET VDSSensing up to 230 VOperating Frequency Up to 1 MHz1 MHz for UCC24612-1800 kHz for UCC24612-2Wide VDD Range Allows for Direct Bias from 5-V to 28-V Output Systems4-A Sink, 1-A Source Gate Driver with Proportional Gate DriveAdaptive Minimum Off-time for Increased Noise ImmunityCycle Limit Pre-Turn-off Improves Efficiency in CCMHigh or Low-Side ConfigurableAutomatic Light-Load and Sleep-Mode Management with 320-µA standby current16-ns Typical Turnoff Propagation Delay9.5-V Gate Drive Clamp for Reduced Driving Loss
Description
AI
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.
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.