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PDF NCL30083A Data sheet ( Hoja de datos )
| Número de pieza | NCL30083A | |
| Descripción | Dimmable Quasi-Resonant Primary Side Current-Mode Controller | |
| Fabricantes | ON Semiconductor | |
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NCL30083
Dimmable Quasi-Resonant
Primary Side Current-Mode
Controller for LED Lighting
with Thermal Fold-back
The NCL30083 is a PWM current mode controller targeting isolated
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flyback and non−isolated constant current topologies. The controller
operates in a quasi−resonant mode to provide high efficiency. Thanks
to a novel control method, the device is able to precisely regulate a
constant LED current from the primary side. This removes the need
for secondary side feedback circuitry, biasing and an optocoupler.
The device is highly integrated with a minimum number of external
components. A robust suite of safety protection is built in to simplify
Micro8
DM SUFFIX
CASE 846A
the design. This device is specifically intended for very compact space
efficient designs. It supports step dimming by monitoring the AC line
MARKING DIAGRAM
and detecting when the line has been toggled on−off−on by the user to
8
reduce the light intensity in 5 steps down to 5% dimming.
Features
• Quasi−resonant Peak Current−mode Control Operation
AAx
AYWG
G
1
• Primary Side Sensing (no optocoupler needed)
• Wide VCC Range
• Source 300 mA/Sink 500 mA Totem Pole Driver with 12 V Gate Clamp
• Precise LED Constant Current Regulation ±1% Typical
• Line Feed−forward for Enhanced Regulation Accuracy
• Low LED Current Ripple
AAx = Specific Device Code
x = E or F
A = Assembly Location
Y = Year
W = Work Week
G = Pb−Free Package
(Note: Microdot may be in either location)
• 250 mV ±2% Guaranteed Voltage Reference for Current Regulation
• ~ 0.9 Power Factor with Valley Fill Input Stage
PIN CONNECTIONS
• Low Start−up Current (13 mA typ.)
• 5 State Quasi−log Dimmable
• Thermal Fold−back
• Programmable soft−start
SD
ZCD
CS
GND
1
SS
VIN
VCC
DRV
• Wide Temperature Range of −40 to +125°C
(Top View)
• Pb−free, Halide−free MSL1 Product
• Robust Protection Features
♦ Over Voltage / LED Open Circuit Protection
♦ Over Temperature Protection
♦ Secondary Diode Short Protection
♦ Output Short Circuit Protection
♦ Shorted Current Sense Pin Fault Detection
♦ Latched and Auto−recoverable Versions
♦ Brown−out
♦ VCC Under Voltage Lockout
♦ Thermal Shutdown
Typical Applications
• Integral LED Bulbs
• LED Power Driver Supplies
• LED Light Engines
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 34 of this data sheet.
© Semiconductor Components Industries, LLC, 2013
April, 2013 − Rev. 0
1
Publication Order Number:
NCL30083/D
1 page  
NCL30083
Table 3. ELECTRICAL CHARACTERISTICS (Unless otherwise noted: For typical values TJ = 25°C, VCC = 12 V;
For min/max values TJ = −40°C to +125°C, Max TJ = 150°C, VCC = 12 V)
Description
Test Condition
Symbol
Min Typ
STARTUP AND SUPPLY CIRCUITS
Supply Voltage
Startup Threshold
Minimum Operating Voltage
Hysteresis VCC(on) – VCC(off)
Internal logic reset
Over Voltage Protection
VCC OVP threshold
VCC increasing
VCC decreasing
VCC decreasing
VCC(on)
VCC(off)
VCC(HYS)
VCC(reset)
VCC(OVP)
16 18
8.2 8.8
8–
3.5 4.5
26 28
VCC(off) noise filter
VCC(reset) noise filter−
Startup current
Startup current in fault mode
Supply Current
Device Disabled/Fault
Device Enabled/No output load on pin 5
Device Switching (Fsw = 65 kHz)
CURRENT SENSE
VCC > VCC(off)
Fsw = 65 kHz
CDRV = 470 pF,
Fsw = 65 kHz
tVCC(off)
tVCC(reset)
ICC(start)
ICC(sFault)
ICC1
ICC2
ICC3
–5
– 20
– 13
– 46
0.8 1.2
– 2.3
– 2.7
Maximum Internal current limit
Leading Edge Blanking Duration for VILIM
(Tj = −25°C to 125°C)
Leading Edge Blanking Duration for VILIM
(Tj = −40°C to 125°C)
Input Bias Current
Propagation delay from current detection to gate off−state
Threshold for immediate fault protection activation
Leading Edge Blanking Duration for VCS(stop)
Blanking time for CS to GND short detection VpinVIN = 1 V
Blanking time for CS to GND short detection VpinVIN = 3.3 V
GATE DRIVE
DRV high
VILIM
tLEB
tLEB
Ibias
tILIM
VCS(stop)
tBCS
tCS(blank1)
tCS(blank2)
0.95 1
250 300
240 300
– 0.02
– 50
1.35 1.5
– 120
6–
2–
Drive Resistance
DRV Sink
DRV Source
Drive current capability
DRV Sink (Note 4)
DRV Source (Note 4)
Rise Time (10% to 90%)
Fall Time (90% to 10%)
DRV Low Voltage
DRV High Voltage
4. Guaranteed by design
5. OTP triggers when RNTC = 4.7 kW
CDRV = 470 pF
CDRV = 470 pF
VCC = VCC(off)+0.2 V
CDRV = 470 pF,
RDRV = 33 kW
VCC = 30 V
CDRV = 470 pF,
RDRV = 33 kW
RSNK
RSRC
ISNK
ISRC
tr
tf
VDRV(low)
VDRV(high)
– 13
– 30
– 500
– 300
– 40
– 30
8–
10 12
Max Unit
V
20
9.4
–
5.5
30 V
– ms
–
30 mA
60 mA
mA
1.4
4.0
5.0
1.05 V
350 ns
350 ns
– mA
150 ns
1.65 V
– ns
12 ms
4 ms
W
–
–
mA
–
–
– ns
– ns
–V
14 V
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5 Page 
NCL30083
TYPICAL CHARACTERISTICS
30.0 18.0
29.5 17.5
29.0 17.0
28.5 16.5
28.0 16.0
27.5 15.5
27.0 15.0
26.5
26.0
−40 −20 0 20 40 60 80 100 120
TJ, JUNCTION TEMPERATURE (°C)
Figure 21. VREF10 vs. Junction Temperature
14.5
14.0
−40 −20 0 20 40 60 80 100 120
TJ, JUNCTION TEMPERATURE (°C)
Figure 22. VREF05 vs. Junction Temperature
55.0
54.5
54.0
53.5
53.0
52.5
52.0
−40 −20 0 20 40 60 80 100 120
TJ, JUNCTION TEMPERATURE (°C)
Figure 23. VCS(low) vs. Junction Temperature
16.60
16.55
16.50
16.45
16.40
16.35
16.30
−40 −20 0 20 40 60 80 100 120
TJ, JUNCTION TEMPERATURE (°C)
Figure 24. KLFF vs. Junction Temperature
37.6
37.5
37.4
37.3
37.2
37.1
37.0
−40 −20 0 20 40 60 80 100 120
TJ, JUNCTION TEMPERATURE (°C)
Figure 25. VREF(off) vs. Junction Temperature
49.0
48.5
48.0
47.5
47.0
46.5
46.0
45.5
45.0
44.5
44.0
−40 −20 0 20 40 60 80 100 120
TJ, JUNCTION TEMPERATURE (°C)
Figure 26. VREF(on) vs. Junction Temperature
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| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet NCL30083A.PDF ] | |
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