| Parameters | 
                                                                                                            
                                            | Mount | Surface Mount | 
                                                                            
                                            | Mounting Type | Surface Mount | 
                                                                            
                                            | Package / Case | 28-LCC (J-Lead) | 
                                                                            
                                            | Number of Pins | 28 | 
                                                                            
                                            | Operating Temperature | -40°C~125°C TA | 
                                                                            
                                            | Packaging | Tube | 
                                                                            
                                            | Published | 2007 | 
                                                                            
                                            | JESD-609 Code | e0 | 
                                                                            
                                            | Part Status | Obsolete | 
                                                                            
                                            | Moisture Sensitivity Level (MSL) | 3  (168 Hours) | 
                                                                            
                                            | Number of Terminations | 28 | 
                                                                            
                                            | ECCN Code | EAR99 | 
                                                                            
                                            | Terminal Finish | Tin/Lead (Sn/Pb) | 
                                                                            
                                            | Subcategory | Peripheral Drivers | 
                                                                            
                                            | Terminal Position | QUAD | 
                                                                            
                                            | Terminal Form | J BEND | 
                                                                            
                                            | Peak Reflow Temperature (Cel) | 240 | 
                                                                            
                                            | Number of Functions | 4 | 
                                                                            
                                            | Supply Voltage | 5V | 
                                                                            
                                            | Terminal Pitch | 1.27mm | 
                                                                            
                                            | Reach Compliance Code | not_compliant | 
                                                                            
                                            | Time@Peak Reflow Temperature-Max (s) | 30 | 
                                                                            
                                            | Base Part Number | UDK2559 | 
                                                                            
                                            | Pin Count | 28 | 
                                                                            
                                            | Number of Outputs | 4 | 
                                                                            
                                            | Qualification Status | Not Qualified | 
                                                                            
                                            | Output Type | Bipolar | 
                                                                            
                                            | Max Output Current | 1A | 
                                                                            
                                            | Supply Voltage-Max (Vsup) | 5.25V | 
                                                                            
                                            | Power Supplies | 5V | 
                                                                            
                                            | Interface | On/Off | 
                                                                            
                                            | Nominal Supply Current | 80mA | 
                                                                            
                                            | Output Configuration | Low Side | 
                                                                            
                                            | Voltage - Supply (Vcc/Vdd) | 4.75V~5.25V | 
                                                                            
                                            | Input Type | Non-Inverting | 
                                                                            
                                            | Switch Type | General Purpose | 
                                                                            
                                            | Output Characteristics | OPEN-COLLECTOR | 
                                                                            
                                            | Output Current per Channel | 700mA | 
                                                                            
                                            | Output Polarity | INVERTED | 
                                                                            
                                            | Ratio - Input:Output | 1:1 | 
                                                                            
                                            | Input Characteristics | STANDARD | 
                                                                            
                                            | Voltage - Load | 60V Max | 
                                                                            
                                            | Driver Number of Bits | 4 | 
                                                                            
                                            | Fault Protection | Current Limiting (Fixed), Over Temperature | 
                                                                            
                                            | Turn On Time | 20 μs | 
                                                                            
                                            | Output Peak Current Limit-Nom | 1A | 
                                                                            
                                            | Built-in Protections | TRANSIENT; OVER CURRENT; THERMAL | 
                                                                            
                                            | Output Current Flow Direction | SINK | 
                                                                            
                                            | Length | 11.51mm | 
                                                                            
                                            | Width | 11.51mm | 
                                                                            
                                            | RoHS Status | Non-RoHS Compliant | 
                                                                            
                                            | Lead Free | Contains Lead | 
                                                                                                    
                            
                         
                                                UDK2559EB Overview
It is package in Tube case.Package 28-LCC (J-Lead) contains it.This LED driving board is mounted using the mounting type Surface Mount.This switch is of type General Purpose.Keeping the temperature at -40°C~125°C TA ensures reliable operation.There are 4 outputs available on this lighting driver.A voltage of 4.75V~5.25V is used to power it.A maximum output voltage of Bipolar volts can be obtained with this LED driver.It is a member of the UDK2559 family.It contains 28 terminations.For operation, we use the 28 pins.It contains 4 functions.This operation requires the maximum output current to be decreased to 1A.It is possible to achieve a high level of efficiency with a supply voltage of 5V.The lighting driver is mounted in the direction of Surface Mount.The LED driver has a total of 28 pins.A self-contained LED driver with a capacity of Peripheral Drivers is contained in an econtainer.The lighting driver is configured to have a maximum supply voltage of 5.25V (Vsup).In this part, the power supply is set to 5V.
UDK2559EB Features
Supplied from 5V
UDK2559EB Applications
There are a lot of Allegro MicroSystems UDK2559EB Power Switches ICs applications. 
- Smartphone and PDA
- Wireless/Networking Cards
- USB Ports/Hubs
- Wireless Modem Data Cards
- Solid-State Drives
- Smart Phones, Feature Phones
- PC Cards
- Set-Top Boxes
- Handheld Devices 
- Hot Swap