UCC24610 Device Datasheet

UCC24610 Datasheet PDF, Equivalent


Part Number

UCC24610

Description

GREEN Rectifier Controller Device

Manufacture

etcTI

Total Page 30 Pages
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UCC24610
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UCC24610
SLUSA87C – AUGUST 2010 – REVISED OCTOBER 2015
UCC24610 GREEN Rectifier™ Controller Device
1 Features
1 Secondary-Side Controller Optimized for 5-V
Systems
• Up to 600-kHz Operating Frequency
• VDS MOSFET-Sensing
• 1.6-Ω Sink, 2.0-Ω Source Gate-Drive Impedances
• Micro-Power Sleep Current for 90+ Designs
• Automatic Light-Load Management
• Synchronous Wake-Up From Sleep and Light-
Load Modes
• Protection Features on Programming Inputs
• SYNC Input for CCM Operation
• 20-ns Typical Turnoff Propagation Delay
• Improved Efficiency and Design Flexibility Over
Traditional Diode Solution
• May Be Biased Directly From 5-V Output
• Minimal Component Count
2 Applications
• AC-to-DC 5-V Adapters
• 5-V Bias Supplies
• Low Voltage Rectification Circuits
• Flyback and LLC Converters
3 Description
This GREEN Rectifier™ controller is a high-
performance controller and driver for standard and
logic-level N-channel MOSFET power devices used
for low-voltage secondary-side synchronous
rectification.
The combination of controller and MOSFET emulates
a near-ideal diode rectifier. This solution not only
directly reduces power dissipation of the rectifier but
also indirectly reduces primary-side losses as well,
due to compounding of efficiency gains.
Using drain-to-source voltage sensing, the
UCC24610 is ideal for Flyback and LLC-resonant
power supplies but can also be used with other power
architectures. The UCC24610 is optimized for output
voltages from 4.5 V to 5.5 V, and is suitable for use
with lower and higher output voltages as well.
The UCC24610 offers a programmable false-
triggering filter, a programmable timer to
automatically switch to light-load mode at light load,
and a SYNC input for optional use in continuous
conduction mode (CCM) systems. Protection features
on TON and EN/TOFF pins prevent run-away on-time
due to open-circuit or short-circuit fault conditions.
This device is available in an 8-pin SOIC package
and an 8-pin, 3.0-mm × 3.0-mm SON package with
an exposed thermal pad.
Flyback Topology
Device Information(1)
PART NUMBER
PACKAGE
BODY SIZE (NOM)
UCC24610DRB
SON (8)
3.00 mm × 3.00 mm
UCC24610D
SOIC (8)
4.90 mm × 3.91 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
LLC-Resonant Half Bridge
–+
5V
Out
857326
VD GATE VS TON EN/TOFF GND
UCC24610
1 SYNC
VCC 4
UDG-10079
V
BULK
857326
VD GATE VS TON EN/TOFF GND
UCC24610
1 SYNC
VCC
4
5V
5V
4
1 SYNC
UCC24610
VCC
VD GATE VS TON EN/TOFF GND
857326
12 V
OUT
UDG-10096
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.

UCC24610
UCC24610
SLUSA87C – AUGUST 2010 – REVISED OCTOBER 2015
www.ti.com
Table of Contents
1 Features .................................................................. 1
2 Applications ........................................................... 1
3 Description ............................................................. 1
4 Revision History..................................................... 2
5 Pin Configuration and Functions ......................... 3
6 Specifications......................................................... 5
6.1 Absolute Maximum Ratings ...................................... 5
6.2 ESD Ratings ............................................................ 5
6.3 Recommended Operating Conditions....................... 6
6.4 Thermal Information .................................................. 6
6.5 Electrical Characteristics........................................... 7
6.6 Timing Requirements ................................................ 8
6.7 Typical Characteristics .............................................. 9
7 Detailed Description ............................................ 12
7.1 Overview ................................................................. 12
7.2 Functional Block Diagram ....................................... 12
7.3 Feature Description................................................. 13
7.4 Device Functional Modes........................................ 17
8 Application and Implementation ........................ 18
8.1 Application Information............................................ 18
8.2 Typical Application ................................................. 18
9 Power Supply Recommendations...................... 29
10 Layout................................................................... 29
10.1 Layout Guidelines ................................................. 29
10.2 Layout Example .................................................... 30
11 Device and Documentation Support ................. 31
11.1 Community Resources.......................................... 31
11.2 Trademarks ........................................................... 31
11.3 Electrostatic Discharge Caution ............................ 31
11.4 Glossary ................................................................ 31
12 Mechanical, Packaging, and Orderable
Information ........................................................... 31
4 Revision History
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
Changes from Revision B (September 2010) to Revision C
Page
• Added ESD Ratings table, Feature Description section, Device Functional Modes section, Application and
Implementation section, Power Supply Recommendations section, Layout section, Device and Documentation
Support section, and Mechanical, Packaging, and Orderable Information section. .............................................................. 1
2 Submit Documentation Feedback
Product Folder Links: UCC24610
Copyright © 2010–2015, Texas Instruments Incorporated


Features Product Folder Sample & Buy Technical Documents Tools & Software Support & Community Reference Design UCC24610 S LUSA87C – AUGUST 2010 – REVISED OCT OBER 2015 UCC24610 GREEN Rectifier™ C ontroller Device 1 Features •1 Secon dary-Side Controller Optimized for 5-V Systems • Up to 600-kHz Operating Fre quency • VDS MOSFET-Sensing • 1.6- Sink, 2.0-Ω Source Gate-Drive Impeda nces • Micro-Power Sleep Current for 90+ Designs • Automatic Light-Load Ma nagement • Synchronous Wake-Up From S leep and Light- Load Modes • Protecti on Features on Programming Inputs • S YNC Input for CCM Operation • 20-ns T ypical Turnoff Propagation Delay • Im proved Efficiency and Design Flexibilit y Over Traditional Diode Solution • M ay Be Biased Directly From 5-V Output Minimal Component Count 2 Applicatio ns • AC-to-DC 5-V Adapters • 5-V Bi as Supplies • Low Voltage Rectificati on Circuits • Flyback and LLC Convert ers 3 Description This GREEN Rectifier™ controller is a highperformance controller and driver for standa.
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