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PDF NCL30000 Data sheet ( Hoja de datos )
| Número de pieza | NCL30000 | |
| Descripción | Power Factor Corrected Dimmable LED Driver | |
| Fabricantes | ON Semiconductor | |
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NCL30000
Power Factor Corrected
Dimmable LED Driver
The NCL30000 is a switch mode power supply controller intended
for low to medium power single stage power factor (PF) corrected
LED Drivers. The device is designed to operate in critical conduction
mode (CrM) and is suitable for flyback as well as buck topologies.
Constant on time CrM operation is particularly suited for isolated
flyback LED applications as the control scheme is straightforward and
very high efficiency can be achieved even at low power levels. These
are important in LED lighting to comply with regulatory requirements
and meet overall system luminous efficacy requirements. In CrM, the
switching frequency will vary with line and load and switching losses
are low as recovery losses in the output rectifier are negligible since
the current goes to zero prior to reactivating the main MOSFET
switch.
The device features a programmable on time limiter, zero current
detect sense block, gate driver, trans−conductance error amplifier as
well as all PWM control circuitry and protection functions required to
implement a CrM switch mode power supply. Moreover, for high
efficiency, the device features low startup current enabling fast, low
loss charging of the VCC capacitor. The current sense protection
threshold has been set at 500 mV to minimize power dissipation in the
external sense resistor. To support the environmental operation range
of Solid State Lighting, the device is specified across a wide junction
temperature range of −40°C to 125°C.
Features
• Very Low 24 mA Typical Startup Current
• Constant On Time PWM Control
• Cycle−by−Cycle Current Protection
www.Dat•aSLheoewt4UC.ucrorment Sense Threshold of 500 mV
• Low 2 mA Typical Operating Current
• Source 500 mA / Sink 800 mA Totem Pole Gate Driver
• Reference Design for TRIAC and Trailing Edge Line Dimmers
• Wide Operating Temperature Range
• No Input Voltage Sensing Requirement
• Enable Function and Overvoltage Protection
• These Devices are Pb−Free, Halogen Free/BFR Free and are RoHS
Compliant
Typical Applications
• LED Driver Power Supplies
• LED Based Down Lights
• Commercial and Residential LED Fixtures
• TRIAC Dimmable LED Based PAR Lamps
• Power Factor Corrected Constant Voltage Supplies
http://onsemi.com
8
1
SOIC−8
D SUFFIX
CASE 751
MARKING
DIAGRAM
8
L0000
ALYW
G
1
A = Assembly Location
L = Wafer Lot
Y = Year
W = Work Week
G = Pb−Free Package
PIN CONNECTION
MFP
Comp
Ct
CS
(Top View)
VCC
DRV
GND
ZCD
ORDERING INFORMATION
Device
Package
Shipping†
NCL30000DR2G 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, 2009
December, 2009 − Rev. 0
1
Publication Order Number:
NCL30000/D
1 page  
NCL30000
Table 2. MAXIMUM RATINGS
Rating
Symbol
Value
Unit
MFP Voltage
VMFP
−0.3 to 10
V
MFP Current
IMFP
±10 mA
COMP Voltage
VControl
−0.3 to 6.5
V
COMP Current
IControl
−2 to 10
mA
Ct Voltage
VCt
−0.3 to 6
V
Ct Current
ICt ±10 mA
CS Voltage
VCS
−0.3 to 6
V
CS Current
ICS ±10 mA
ZCD Voltage
VZCD
−0.3 to 10
V
ZCD Current
IZCD
±10 mA
DRV Voltage
VDRV
−0.3 to VCC
V
DRV Sink Current
IDRV(sink)
800
mA
DRV Source Current
IDRV(source)
500
mA
Supply Voltage
VCC −0.3 to 20 V
Supply Current
ICC ±20 mA
Power Dissipation (TA = 70°C, 2.0 Oz Cu, 55 mm2 Printed Circuit Copper Clad)
PD
450 mW
Thermal Resistance Junction−to−Ambient
(2.0 Oz Cu, 55 mm2 Printed Circuit Copper Clad)
Junction−to−Air, Low conductivity PCB (Note 3)
Junction−to−Air, High conductivity PCB (Note 4)
RqJA
RRqqJJAA
°C/W
178
168
127
Operating Junction Temperature Range
TJ
−40 to 125
°C
Maximum Junction Temperature
TJ(MAX)
150
°C
Storage Temperature Range
TSTG
−65 to 150
°C
Lead Temperature (Soldering, 10 s)
TL 300 °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:
Pins 1– 8: Human Body Model 2000 V per JEDEC Standard JESD22−A114E.
www.DataSheePti4nUs .1c–om8: Machine Model Method 200 V per JEDEC Standard JESD22−A115−A.
2. This device contains Latch−Up protection and exceeds ± 100 mA per JEDEC Standard JESD78.
3. As mounted on a 40x40x1.5 mm FR4 substrate with a single layer of 80 mm2 of 2 oz copper traces and heat spreading area. As specified
for a JEDEC 51 low conductivity test PCB. Test conditions were under natural convection or zero air flow.
4. As mounted on a 40 x 40 x 1.5 mm FR4 substrate with a single layer of 650 mm2 of 2 oz copper traces and heat spreading area. As specified
for a JEDEC 51 high conductivity test PCB. Test conditions were under natural convection or zero air flow.
Table 3. ELECTRICAL CHARACTERISTICS
VMFP = 2.4 V, VControl = 4 V, Ct = 1 nF, VCS = 0 V, VZCD = 0 V, CDRV = 1 nF, VCC = 12 V, unless otherwise specified
(For typical values, TJ = 25°C. For min/max values, TJ = −40°C to 125°C, unless otherwise specified)
Characteristic
Test Conditions
Symbol
Min
Typ
STARTUP AND SUPPLY CIRCUITS
Startup Voltage Threshold
Minimum Operating Voltage
Supply Voltage Hysteresis
Startup Current Consumption
No Load Switching
Current Consumption
VCC Increasing
VCC Decreasing
0 V < VCC < VCC(on) − 200 mV
CDRV = open, 70 kHz Switching,
VCS = 2 V
VCC(on)
VCC(off)
HUVLO
Icc(startup)
Icc1
11
8.8
2.2
−
−
12
9.5
2.5
24
1.4
Switching Current Consumption
Fault Condition Current Consumption
70 kHz Switching, VCS = 2 V
No Switching, VMFP = 0 V
Icc2 − 2.1
Icc(fault) − 0.75
Max
12.5
10.2
2.8
35
1.7
2.6
0.95
Unit
V
V
V
mA
mA
mA
mA
http://onsemi.com
5
5 Page 
NCL30000
TYPICAL CHARACTERISTICS
13 26
12 VCC(on)
11
10 VCC(off)
9
24
22
20
18
16
8
−50 −25 0 25 50 75 100 125
TJ, JUNCTION TEMPERATURE (°C)
Figure 20. Supply Voltage Thresholds vs.
Junction Temperature
14
−50 −25 0 25 50 75 100 125
TJ, JUNCTION TEMPERATURE (°C)
Figure 21. Startup Current Consumption vs.
Junction Temperature
2.16
2.14
2.12
2.10
2.08
2.06
2.04
www.DataSheet4U.com
2.02
2.00
−50 −25 0 25 50 75 100 125
TJ, JUNCTION TEMPERATURE (°C)
Figure 22. Switching Current Consumption vs.
Junction Temperature
http://onsemi.com
11
11 Page | ||
| Páginas | Total 23 Páginas | |
| PDF Descargar | [ Datasheet NCL30000.PDF ] | |
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