NCL30100SNT1G ON Semiconductor, NCL30100SNT1G Datasheet - Page 15

• Manufacturer Part Number: NCL30100SNT1G
• Description: IC LINEAR
• Manufacturer: ON Semiconductor

Specifications of NCL30100SNT1G

• Constant Current: *
• Constant Voltage: *
• Topology: *
• Number Of Outputs: *
• Internal Driver: *
• Type - Primary: *
• Type - Secondary: *
• Frequency: *
• Voltage - Supply: *
• Voltage - Output: *
• Mounting Type: Surface Mount
• Package / Case: 6-TSOP
• Operating Temperature: *
• Current - Output / Channel: *
• Operating Supply Voltage: 6.35 V to 18 V
• Maximum Operating Temperature: + 125 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• Led Driver Application: LED Track Lighting, Landscape Lighting, Outdoor Area Lighting
• No. Of Outputs: 1
• Output Current: 1.2A
• Input Voltage: 6.35V To 18V
• Dimming Control Type: PWM
• Rohs Compliant: Yes
• Leaded Process Compatible: Yes
• Peak Reflow Compatible (260 C): Yes
• Operating Temperature Range: -40°C To +125°C
• Switching Frequency: 700kHz
• Efficiency: 95%
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: NCL30100SNT1GOSTR

the internal propagation delay so the current overshoot from
target is approximately 40 mA as calculated in Equation 18.
R
2.7 kW and 30 kW.
calculate the die power dissipation:
V +
shift
R
P
V/L is simply the slew rate through the inductor and t
All values necessary for R
This value of resistance can be a parallel combination of
To understand the operating junction temperature, we
DIE
shift
^ 0.0402 A
I
I
LED
LED
value is described by this formula:
di @ L
+ V
+ 12 @ 300 @ 10
+ 39.8 mW
+
+
dt
R
0.1 @ ( 0.76 * 0.0402 ) ) 0.038
CC
sense
å I
Figure 28. A Current Error Between the Intended Peak Current and the Actual Peak Current
@ 300 @ 10
delay
@ I
(V
(V
44.07 @ 10
in
in
pk
+
-V
-V
L
L
I
* I
CS
t
t
V @ t
−6
I
I
I
I
on
on
LED
LED
peak
peak
cs
cs
L
−6
delay
) 560 @ 10
) C
shift
)
)
+
−6
8.8 @ 215 @ 10
) V
t
t
calculation are known, the
MOSFET
d
d
47 @ 10
th
−12
@ V
^ 2496 W
@ 12 @ 450 @ 10
−6
CC
−9
@ f
switching
(eq. 18)
(eq. 19)
(eq. 20)
-V
-V
-V
http://onsemi.com
LED
LED
LED
d
t
t
3
off
off
is
- V
- V
- V
L
L
L
15
diode
diode
diode
Using the P
components necessary for a specific set of operating
conditions
ON Semiconductor website.
line. Since Capacitor C3 is charged from a sinusoidal
voltage. If the input voltage approaches zero, the IC is still
supplied from C3. Due to this diode, the IC keeps the LED
driver operating even if the sinusoidal voltage is lower than
V
make sense only if a single LED is used and the converter is
supplied by sinusoidal voltage 12 Vac. For two LEDs in
series their forward voltage is almost as high as V
the IC.
applications which will have an influence on the circuit
operation. They are depending on the PCB design which is
user dependent. The BOM, PCB and some plots are enclosed
for better understanding of the system behavior.
Temp
CC(min)
A design spreadsheet to aid in calculating the external
For a low voltage AC input diode D3 is placed into the Vcc
Parasitic capacitance and inductance are presented in real
IC
until V
+ T
+ T
DIE
is
A
A
, we can calculate junction temperature:
) P
) 7.1° C
in
is lower than V
available
DIE
@ R
qJA
+ T
for
LED
A
) 0.0399 @ 178
. The use of this diode
download
Δi
L
CC(min)
at
(eq. 21)
the
of