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NCP3066 PDF даташит

Спецификация NCP3066 изготовлена ​​​​«ON Semiconductor» и имеет функцию, называемую «Up to 1.5 A Constant Current Switching Regulator».

Детали детали

Номер произв NCP3066
Описание Up to 1.5 A Constant Current Switching Regulator
Производители ON Semiconductor
логотип ON Semiconductor логотип 

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NCP3066 Даташит, Описание, Даташиты
NCP3066, NCV3066
www.DataSheet4U.com
Up to 1.5 A Constant
Current Switching
Regulator for LEDs with
ON/OFF Function
The NCP3066 is a monolithic switching regulator designed to
deliver constant current for powering high brightness LEDs. The
device has a very low feedback voltage of 235 mV (nominal) which is
used to regulate the average current of the LED string. In addition, the
NCP3066 has a wide input voltage up to 40 V to allow it to operate
from a 12 Vac or a 1236 Vdc supply, commonly used for lighting
applications as well as unregulated supplies such as rechargeable
batteries. The NCP3066 switching regulator can be configured in
StepDown (Buck), StepUp (Boost) and VoltageInverting
topologies with a minimum number of external components. The
ON/OFF pin provides PWM dimming capability or a low power
shutdown mode.
Features
Integrated 1.5 A Switch
Input Voltage Range from 3.0 V to 40 V
Logic Level Shutdown Capability
Low Feedback Voltage of 235 mV
CyclebyCycle Current Limit
No Control Loop Compensation Required
Frequency of Operation Adjustable up to 250 kHz
Analog and Digital PWM Dimming Capability
Internal Thermal Shutdown with Hysteresis
NCV Prefix for Automotive and Other Applications Requiring Site
and Control Changes
These are PbFree Devices
Applications
Automotive and Marine Lighting
Constant Current Source, High Brightness LED Driver
Low Voltage and Landscape Lighting
ON/OFF
Rsense
VCC
CIN
GND
Ç ÇÇON/OFF
SWC
Ç ÇÇIpk SWE
NCP3066
Ç ÇÇVCC
CT
ÇÇ ÇÇÇÇCOMP
GND
CT
L1
COUT
D1
Figure 1. Typical Buck Application Circuit
LED+
LED1
LEDn
LED
Rs
http://onsemi.com
MARKING
DIAGRAMS
8
1
SOIC8
D SUFFIX
CASE 751
3066
ALYWG
G
1
NCP3066
AWL
YYWWG
8
1
PDIP8
P, P1 SUFFIX
CASE 626
3066
ALYWG
G
1
DFN8
MN SUFFIX
CASE 488AF
NCP3066
A
L, WL
Y, YY
W, WW
G or G
= Specific Device Code
= Assembly Location
= Wafer Lot
= Year
= Work Week
= PbFree Package
(Note: Microdot may be in either location)
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 17 of this data sheet.
© Semiconductor Components Industries, LLC, 2009
January, 2009 Rev. 3
1
Publication Order Number:
NCP3066/D









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NCP3066 Даташит, Описание, Даташиты
NCP3066, NCV3066
Switch Collector
Switch Emitter
Timing Capacitor
GND
SOIC8/PDIP8
18
27
36
45
(Top View)
ON/OFF
Ipk Sense
VCC
Comparator
Inverting
Input
Figure 2. Pin Connections
DFN8 www.DataSheet4U.com
Switch Collector
ÇÇSwitch Emitter
ÇÇTiming Capacitor
ÇÇÇÇGND
EP Flag
ON/OFF
ÇIpk Sense
ÇVCC
ÇÇComparator
Inverting
(Top View)
Input
NOTE: EP Flag must be tied to GND Pin 4 on PCB
Figure 3. Pin Connections
8
ON/OFF
7
Ipk Sense
6
VCC
5
Comparator Inverting Input
ON/OFF
Bias
Comparator
+
0.2 V
R
Q
S
S
Q
R
TSD
Oscillator
Comparator
+
0.235V
Reference
Regulator
Figure 4. Block Diagram
1
Switch Collector
2
Switch Emitter
CT 3
Timing Capacitor
4
GND
PIN DESCRIPTION
Pin No.
PDIP8
DFN8
11
22
33
4 4, EP Flag
55
66
77
88
Pin Name
Switch Collector
Switch Emitter
Timing Capacitor
GND
Comparator Inverting Input
VCC
Ipk Sense
ON/OFF
Description
Internal Darlington switch collector.
Internal Darlington switch emitter.
Timing Capacitor to control the switching frequency.
Ground pin for all internal circuits.
Inverting input pin of internal comparator.
Voltage Supply
Peak Current Sense Input to monitor the voltage drop across an external
resistor to limit the peak current through the circuit.
ON/OFF Pin. To disable the device, this input should be pulled below
0.8 V. If the pin is left floating, it will be disabled.
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NCP3066 Даташит, Описание, Даташиты
NCP3066, NCV3066
MAXIMUM RATINGS (measured vs. Pin 4, unless otherwise noted)
Rating
Symbol
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Value
Unit
VCC Pin 6
Comparator Inverting Input Pin 5
Darlington Switch Collector Pin 1
Darlington Switch Emitter Pin 2 (Transistor OFF)
Darlington Switch Collector to Emitter Pins 12
Darlington Switch Current
Ipk Sense Pin 7
Timing Capacitor Pin Voltage (Pin 3)
Moisture Sensitivity Level
VCC
VCII
VSWC
VSWE
VSWCE
ISW
VIPK
VTC
MSL
0 to +42
0.3 to + VCC
0.3 to + 42
0.6 to + VCC
0.3 to + 42
1.5
0.3 to VCC+ 0.3
0.2 to +1.4
1
V
V
V
V
V
A
V
V
Lead Temperature Soldering
ON/OFF Pin voltage
POWER DISSIPATION AND THERMAL CHARACTERISTICS
TSLD
VON/OFF
260
(0.3 to +25) < VCC
°C
V
PDIP8 (Note 5)
Thermal Resistance JunctiontoAir
RqJA
°C/W
100
SOIC8 (Note 5)
Thermal Resistance JunctiontoAir
RqJA
°C/W
180
DFN8 (Note 5)
Thermal Resistance JunctiontoAir
Thermal Resistance JunctiontoCase
Storage Temperature Range
Maximum Junction Temperature
Operating Junction Temperature Range (Note 3)
NCP3066
NCV3066
RqJA
RqJC
TSTG
TJMAX
TJ
78
14
65 to +150
+150
0 to +85
40 to +125
°C/W
°C
°C
°C
Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the
Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect
device reliability.
1. This device series contains ESD protection and exceeds the following tests:
Pin 18: Human Body Model 2000 V per AEC Q100002; 003 or JESD22/A114; A115
Machine Model Method 200 V
2. This device contains latchup protection and exceeds 100 mA per JEDEC Standard JESD78.
3.
4.
The
The
relation between junction temperature,
pins which are not defined may not be
ambient temperature and Total
loaded by external signals.
Power
dissipated
in
IC
is
TJ
=
TA
+
Rq
PD.
5. 35 mm copper, 10 cm2 copper area.
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