NUD4301 Datasheet, PDF (1/6 Pages) ON Semiconductor – Dual Low Dropout Voltage LED Driver/Current Source

NUD4301
Advance Information
Dual Low Dropout Voltage
LED Driver/Current Source
This device is designed to replace switching regulators for driving
LEDs in low voltage DC battery applications (up to 6 V). Its unique
integrated circuit design provides low dropout voltage (less than
200 mV), which makes it ideal for battery applications where voltage
overhead is limited. An external resistor allows the circuit designer to
set the LED current for different applications needs. The device is
packaged in a small surface mount leadless package (DFN8), which
results in a significant reduction of both system cost and board space.
Features
• Ultra Low Dropout Voltage < 200 mV
• Programmable Output Current from 1 mA to 30 mA
• Dual Output with Independent Current Limit Set
• DC Current in LED
• Analog/Digital PWM Capability
• This is a Pb−Free Device
Typical Applications
• Portables: PDAs, Cell phones
• Li−Ion Battery Applications
9
Vcc
http://onsemi.com
MARKING
DIAGRAM
DFN8
CASE 506AQ
43 M G
1^G
43
= Specific Device Code
M
= Date Code
G
= Pb−Free Package
(Note: Microdot may be in either location)
PIN CONFIGURATION
1 23 4
9
1
Enable
2
Dim
3
NC
ÎÎÎÎ_EnaÎÎ_ble ÎÎ
PWM
ÎÎÎÎÎÎÎ Analog/Digital
ÎÎÎÎÎÎÎ ^Control
Current
Limit FET1
Current
ÎÎÎÎÎÎ _{Limit FET2}
4
Gnd
Figure 1. Block Diagram
6
Drain1
8 76 5
(Bottom View)
7
Drain2
ORDERING INFORMATION
Device
Package
Shipping^†
NUD4301MNT1G DFN8 3000/Tape & Reel
(Pb−Free)
†For information on tape and reel specifications,
8
Source2
including part orientation and tape sizes, please
refer to our Tape and Reel Packaging Specification
Brochure, BRD8011/D.
5
Source1
This document contains information on a new product. Specifications and information
herein are subject to change without notice.
© Semiconductor Components Industries, LLC, 2006
1
July, 2006 − Rev. P3
Publication Order Number:
NUD4301/D