On Semiconductor NCL30100 Evaluation Board NCL30100ASLDGEVB NCL30100ASLDGEVB 데이터 시트
제품 코드
NCL30100ASLDGEVB
© Semiconductor Components Industries, LLC, 2011
January, 2011 − Rev. 3
1
Publication Order Number:
NCL30100/D
NCL30100
Fixed Off Time Switched
Mode LED Driver Controller
Mode LED Driver Controller
The NCL30100 is a compact switching regulator controller intended
for space constrained constant current high−brightness LED driver
applications where efficiency and small size are important. The
controller is based on a peak current, quasi fixed−off time control
architecture optimized for continuous conduction mode step−down
(buck) operation. This allows the output filter capacitor to be
eliminated. In this configuration, a reverse buck topology is used to
control a cost effective N−type MOSFET. Moreover, this controller
employs negative current sensing thus minimizing power dissipation
in the current sense resistor. The off time is user adjustable through the
selection of a small external capacitor, thus allowing the design to be
optimized for a given switching frequency range. The control loop is
designed to operate up to 700 kHz allowing the designer the flexibility
to use a very small inductor for space constrained applications.
applications where efficiency and small size are important. The
controller is based on a peak current, quasi fixed−off time control
architecture optimized for continuous conduction mode step−down
(buck) operation. This allows the output filter capacitor to be
eliminated. In this configuration, a reverse buck topology is used to
control a cost effective N−type MOSFET. Moreover, this controller
employs negative current sensing thus minimizing power dissipation
in the current sense resistor. The off time is user adjustable through the
selection of a small external capacitor, thus allowing the design to be
optimized for a given switching frequency range. The control loop is
designed to operate up to 700 kHz allowing the designer the flexibility
to use a very small inductor for space constrained applications.
The device has been optimized to provide a flexible inductive
step−down converter to drive one or more high power LED(s). The
controller can also be used to implement non−isolated buck−boost
driver topologies.
controller can also be used to implement non−isolated buck−boost
driver topologies.
Features
•
Quasi−Fixed OFF Time, Peak Current Control Method
•
N−FET Based Controller Architecture
•
Up to 700 kHz Switching Frequency
•
Up to >95% Efficiency
•
No Output Capacitor Needed
•
V
CC
Operation from 6.35 − 18 V
•
Adjustable Current Limit with Negative Sensing
•
Inherent Open LED Protected
•
Very Low Current Consumption at Startup
•
Undervoltage Lockout
•
Compact Thin TSOP−6 Pb−Free Package
•
−40 to + 125
°C Operating Temperature Range
•
This is a Pb−Free Device
Typical Applications
•
Low Voltage Halogen LED Replacement (MR 16)
•
LED Track Lighting
•
Landscape Lighting
•
Solar LED Applications
•
Transportation Lighting
•
12 V LED Bulb Replacement
•
Outdoor Area Lighting
•
LED Light Bars
PIN CONNECTIONS
MARKING
DIAGRAM
DIAGRAM
TSOP−6
(SOT23−6, SC59−6)
SN SUFFIX
CASE 318G
1
3
IVC
CS
2
GND
CT
4
Gate
6
(Top View)
5 V
CC
ORDERING INFORMATION
Device
Package
Shipping
†
TSOP−6
(Pb−Free)
†For information on tape and reel specifications,
including part orientation and tape sizes, please
refer to our Tape and Reel Packaging Specifications
Brochure, BRD8011/D.
http://onsemi.com
NCL30100SNT1G
3000 / Tape & Reel
1
AAA = Specific Device Code
A
A
=Assembly Location
Y
= Year
W
= Work Week
G
= Pb−Free Package
AAAAYWG
G
1
(Note: Microdot may be in either location)