SC440MLTRT Semtech, SC440MLTRT Datasheet - Page 3

• Manufacturer Part Number: SC440MLTRT
• Description: IC LED DRVR WHITE BCKLGT 24-MLPQ
• Manufacturer: Semtech
• Type: Backlight, White LEDr

Specifications of SC440MLTRT

• Constant Current: Yes
• Topology: PWM, Step-Up (Boost)
• Number Of Outputs: 6
• Internal Driver: Yes
• Type - Primary: Backlight
• Frequency: 640kHz ~ 960kHz
• Voltage - Supply: 4.5 V ~ 21 V
• Voltage - Output: 40V
• Mounting Type: Surface Mount
• Package / Case: 24-MLPQ
• Current - Output / Channel: 30mA
• Internal Switch(s): Yes
• Efficiency: 91%
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Operating Temperature: -
• Other names: SC440MLTR

Absolute Maximum Ratings
Exceeding the above specifications may result in permanent damage to the device or device malfunction. Operation outside of the parameters specified in the
Electrical Characteristics section is not recommended.
NOTES-
(1)
(2)
Electrical Characteristics
Unless otherwise noted, V
© 2010 Semtech Corp.
V
Maximum Output Power………………………………
IOSET Voltage ……………………………………… -0.3 to 2V
SW, VOUT, IO1~IO6, OVPIN,
OVPRTN Voltage …………………………………
SS, COMP Voltage …………………………………… -0.3 to 3V
SCP_EN Voltage …………………………………… -0.3 to 3.5V
EN, PWM, FFLAG Voltage …………………… -0.3 to V
PGND to AGND and I
Peak IR Reflow Temperature ………………………….
ESD Protection Level
Parameter
Input Supply
Under-Voltage Lockout Threshold
UVLO Hysteresis
V
V
Oscillator
Switching Frequency
Maximum Duty Cycle
Minimum Duty Cycle
Minimum On-Time
Internal Power Switcher
Switch Current Limit
Switch Saturation Voltage
Switch Leakage Current
Compensation
Sourcing Current
Sinking Current
IN
IN
IN
Quiescent Supply Current
Supply Current in Shutdown
Pin: Supply Voltage …………………………… -0.3 to 25V
Calculated from package in still air, mounted to 3” x 4.5”, 4 layer FR4 PCB with thermal vias under the exposed pad per JESD51 standards.
Tested according to JEDEC standard JESD22-A114-B.
(1)
(1)
(1)
OGND
(2)
IN
NOT RECOMMENDED FOR NEW DESIGNS: SEE SC440A
………………………………… 2000V
= 12V, -40°C < T
……………………………
A
= T
Symbol
J
U
T
U
I
< 85°C, R
D
D
ON-MIN
V
S-LEAK
I
VLO-TH
I
I
I
I
VLO-H
IN-Q
IN-S
F
O-H
SW
O-L
MAX
MIN
SAT
S
IOSET
-0.3 to 45V
= 2kΩ.
IN
± 0.3V
260°C
+0.3V
7.5W
EN / PWM = low
Conditions
No switching
V
V
V
COMP
V
I
COMP
Recommended Operating Conditions
Thermal Information
SW
SW
IN
Supply Input Voltage …………………………… 4.5V to 21V
Maximum Output Voltage …………………………
Maximum LED Current ………………………………
Junction to Ambient
Maximum Junction Temperature……………………… 150°C
Storage Temperature ………………………… -65 to +150°C
rising
= 12V
= 1A
= 0.5V
= 2V
(1)
……………………………… 29°C/W
Min
0.64
2.0
90
Typ
0.01
250
200
200
4.2
0.8
2.5
3.5
3
5
www.semtech.com
Max
0.96
500
4.5
1
0
1
SC440
Units
MHz
30mA
mV
mA
mV
µA
µA
µA
µA
ns
%
%
V
A
40V
3 3