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PDF NCL30160 Data sheet ( Hoja de datos )
| Número de pieza | NCL30160 | |
| Descripción | 1.0A Constant-Current Buck Regulator | |
| Fabricantes | ON Semiconductor | |
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NCL30160
1.0A Constant-Current
Buck Regulator for Driving
High Power LEDs
The NCL30160 is an NFET hysteretic step−down, constant−current
driver for high power LEDs. Ideal for automotive, industrial and
general lighting applications utilizing minimal external components.
The NCL30160 operates with an input voltage range from 6.3 V to
40 V. The hysteretic control gives good power supply rejection and
fast response during load transients and PWM dimming to LED arrays
of varying number and type. A dedicated PWM input (DIM/EN)
enables wide range of pulsed dimming and a high switching frequency
up to 1.4 MHz allows the use of smaller external components
minimizing space and cost. Protection features include
resistor−programmed constant LED current, shorted LED protection,
under−voltage and thermal shutdown. The NCL30160 is available in a
SOIC−8 package.
Features
• Integrated 1.0A MOSFET
• VIN Range 6.3 V to 40 V
• Short LED Shutdown Protection
• Up to 1.4 MHz Switching Frequency
• No Control Loop Compensation Required
• Adjustable LED Current
• Single Pin Brightness and Enable/Disable Control Using PWM
• Supports All−Ceramic Output Capacitors and Capacitor−less Outputs
• Thermal Shutdown Protection
• Capable of 100% Duty Cycle Operation
• This is a Pb−Free Device
Typical Application
• LED Driver
• Constant Current Source
• Automotive Lighting
• General Illumination
• Industrial Lighting
http://onsemi.com
8
1
SOIC−8 NB
CASE 751
MARKING DIAGRAM
8
30160
ALYWX
G
1
A = Assembly Location
L = Wafer Lot
Y = Year
W = Work Week
G = Pb−Free Package
PIN CONNECTIONS
CS
CS
GND
VCC
LX
VIN
DIM/ENABLE
ROT
ORDERING INFORMATION
Device
Package
Shipping†
NCL30160DR2G SOIC−8 2500 / Tape & Reel
(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.
© Semiconductor Components Industries, LLC, 2012
January, 2012 − Rev. 1
1
Publication Order Number:
NCL30160/D
1 page  
VCC
ROT
VIN
5 V Regulator
(6.3 V to 40 Vmax)
NCL30160
DIM / Enable
VCC
Enable Pull−Up
Resistor
SQ
RQ
Gate Driver
Peak Current
Comparator
220 mV
Timer (toff)
&
Thermal
Shutdown
Valley Current
Comparator
Short Circuit Protection
Comparator
180 mV
500 mV
GND
Figure 2. Simplified Block Diagram
TYPICAL APPLICATION CIRCUITS AND WAVEFORMS
(TJ = 25°C, Unless Otherwise Specified)
VIN D1
CIN
L1
LED
PWM
VIN LX
ROT
CVCC
DIM/Enable
ROT NCL30160
VCC
CS
GND
RSENSE
Figure 3. Typical Application Circuit To Drive One LED (Buck)
LX
CS
http://onsemi.com
5
5 Page | ||
| Páginas | Total 10 Páginas | |
| PDF Descargar | [ Datasheet NCL30160.PDF ] | |
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