LP3958TL/NOPB National Semiconductor, LP3958TL/NOPB Datasheet - Page 4

• Manufacturer Part Number: LP3958TL/NOPB
• Description: IC LED DRVR WT/CLR BCKLT 25-USMD
• Manufacturer: National Semiconductor
• Series: PowerWise®r
• Type: Backlight, White LED, Color LEDr

Specifications of LP3958TL/NOPB

• Constant Current: Yes
• Topology: PWM, Step-Up (Boost)
• Number Of Outputs: 5
• Internal Driver: Yes
• Type - Primary: Backlight, Light Management Unit (LMU)
• Type - Secondary: White LED
• Frequency: 1MHz
• Voltage - Supply: 3 V ~ 5.5 V
• Voltage - Output: 18V
• Mounting Type: Surface Mount
• Package / Case: 25-MicroSMD
• Operating Temperature: -30°C ~ 85°C
• Internal Switch(s): Yes
• Efficiency: 90%
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Output / Channel: -
• Other names: LP3958TLTR

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Absolute Maximum Ratings
2)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
V (SW, FB, MAIN, SUB, KEY1,
KEY2, KEY3)
V
Voltage on I
Voltage on Logic Pins
I (V
I(KEY1, KEY2, KEY3)
Continuous Power Dissipation
(Note 3)
Junction Temperature (T
Storage Temperature Range
Maximum Lead Temperature
(Soldering) (Note 4)
ESD Rating (Note 5)
Human Body Model:
Machine Model:
DD1
REF
, V
)
DD2
, V
KEY
DDIO
, I
RT
, V
, V
DDA
REF
J-MAX
)
-0.3V to V
-0.3V to V
Internally Limited
-65
-0.3V to +6.0V
with 6.0V max
with 6.0V max
-0.3V to +20V
o
C to +150
DDIO
(Notes 1,
DD1
100mA
125
260
+0.3V
+0.3V
10µA
200V
2kV
o
o
o
C
C
C
4
Operating Ratings
Thermal Properties
V (SW, FB, MAIN, SUB)
V
V
Recommended Load Current
(KEY1, KEY2, KEY3) CC Mode
Recommended Total Boost
Converter Load Current
Junction Temperature (T
Ambient Temperature (T
(Note 6)
Junction-to-Ambient Thermal
Resistance(θ
(Note 7)
DD1,2
DDIO
JA
), TLA25 Package
A
J
) Range
) Range
(Notes 1, 2)
0mA to 15mA/driver
-30
-30
1.65V to V
0mA to 70mA
60 - 100
o
C to +125
o
C to +85
3.0 to 5.5V
0 to +19V
o
C/W
DD1
o
o
C
C