LP3954 Datasheet, PDF (4/56 Pages) National Semiconductor (TI) – Advanced Lighting Management Unit

Absolute Maximum Ratings (Notes 1, 2)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
V (SW, FB, R1-2, G1-2, B1-2,
FLASH, WLED1-6)(Notes 3, 4)
V_DD1, V_DD2, V_{DD_IO}, V_DDA
Voltage on ASE, IRT, IFLASH,
IRGB, VREF
Voltage on Logic Pins
V(all other pins): Voltage to GND
I (V_REF)
I(R1, G1, B1, R2, G2, B2)
I(FLASH)(Note 5)
Continuous Power Dissipation
(Note 6)
Junction Temperature (T_J-MAX)
Storage Temperature Range
Maximum Lead Temperature
(Soldering) (Note 7)
ESD Rating (Note 8)
Human Body Model:
-0.3V to +7.2V
-0.3V to +6.0V
-0.3V to V_DD1+0.3V
with 6.0V max
-0.3V to V_{DD_IO} +0.3V
with 6.0V max
-0.3V to 6.0V
10µA
100mA
400mA
Internally Limited
150°C
-65°C to +150°C
260ºC
2kV
Operating Ratings (Notes 1, 2)
V (SW, FB, WLED1-6, R1-2, G1-2,
B1-2, FLASH)
0 to 6.0V
V_DD1,2 with external LDO
V_DD1,2 with internal LDO
V_DDA
V_{DD_IO}
Voltage on ASE
Recommended Load Current
2.7 to 5.5V
3.0 to 5.5V
2.7 to 2.9V
1.65V to V_DD1
0.1V to V_DDA –0.1V
0mA to 300mA
Junction Temperature (T_J) Range
Ambient Temperature (T_A) Range
(Note 9)
-30°C to +125°C
-30°C to +85°C
Thermal Properties
Junction-to-Ambient Thermal
Resistance(θ_JA), TLA36AAA or
RLA36AAA Package
(Note 10)
60°C/W
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