LP3958 Datasheet, PDF (4/28 Pages) National Semiconductor (TI) – Lighting Management Unit with High Voltage Boost Converter

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, MAIN, SUB, KEY1,
KEY2, KEY3)
V_DD1, V_DD2, V_DDIO, V_DDA
Voltage on I_KEY, I_RT, V_REF
Voltage on Logic Pins
I (V_REF)
I(KEY1, KEY2, KEY3)
Continuous Power Dissipation
(Note 3)
Junction Temperature (T_J-MAX)
Storage Temperature Range
Maximum Lead Temperature
(Soldering) (Note 4)
ESD Rating (Note 5)
Human Body Model:
Machine Model:
-0.3V to +20V
-0.3V to +6.0V
-0.3V to V_DD1+0.3V
with 6.0V max
-0.3V to V_DDIO +0.3V
with 6.0V max
10µA
100mA
Internally Limited
125^oC
-65^oC to +150^oC
260^oC
2kV
200V
Operating Ratings (Notes 1, 2)
V (SW, FB, MAIN, SUB)
V_DD1,2
V_DDIO
Recommended Load Current
(KEY1, KEY2, KEY3) CC Mode
Recommended Total Boost
Converter Load Current
Junction Temperature (T_J) Range
Ambient Temperature (T_A) Range
(Note 6)
0 to +19V
3.0 to 5.5V
1.65V to V_DD1
0mA to 15mA/driver
0mA to 70mA
-30^oC to +125^oC
-30^oC to +85^oC
Thermal Properties
Junction-to-Ambient Thermal
Resistance(θ_JA), TLA25 Package
(Note 7)
60 - 100^oC/W
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