LM3533 Datasheet, PDF (4/53 Pages) Texas Instruments – Complete Lighting Power Solution for Smartphone Handsets

LM3533
Absolute Maximum Ratings (Note 1, Note 2)
If Military/Aerospace specified devices are required, please contact the Texas Instruments Sales Office/ Distributors for
availability and specifications.
V_IN to GND
V_SW, V_OVP, V_HVLED1, V_HVLED2 to
GND
V_SCL, V_SDA, V_ALS, V_PWM to GND
V_INT, V_HWEN, V_CPOUT to GND
V_LVLED1- V_LVLED5, to GND
Continuous Power Dissipation
Junction Temperature (T_J-MAX)
Storage Temperature Range
Maximum Lead Temperature
(Soldering)
ESD Rating
Human Body Model
(Note 9)
−0.3V to +6V
−0.3V to +45V
−0.3V to +6V
−0.3V to +6V
−0.3V to +6V
Internally Limited
+150°C
-65°C to +150°C
(Note 3)
2.0kV
Operating Ratings (Note 1, Note 2)
V_IN to GND
V_SW, V_OVP, V_HVLED1, V_VHLED2 to
GND
V_LVLED1- V_LVLED5 to GND
Junction Temperature Range
(T_J) (Note 4, Note 5)
2.7V to 5.5V
0V to +40V
0V to 6V
−40°C to +125°C
Thermal Properties
Thermal Resistance Junction
to Ambient (T_JA)(Note 6)
55.3°C/W
ESD Caution Notice
Texas Instruments recommends that all integrated circuits be handled with appropriate ESD precautions. Failure to observe proper
ESD handling techniques can result in damage to the device.
Electrical Characteristics (Note 2, Note 7)
Limits in standard type face are for T_A = +25°C and those in boldface type apply over the full operating ambient temperature range
(−40°C ≤ T_A ≤ +85°C). Unless otherwise specified V_IN = 3.6V.
Symbol
Parameter
Conditions
Min Typ Max Units
I_SHDN
I_{LED_MIN}
Shutdown Current
Minimum LED Current
2.7V ≤ V_IN ≤ 5.5V, HWEN = GND
Full-Scale Current = 20.2mA
Exponential Mapping
1
5
µA
9.5
µA
Thermal Shutdown
T_SD
Hysteresis
+140
°C
15
Boost Converter
I_HVLED(1/2)
Output Current Regulation 2.7V ≤ V_IN ≤ 5.5V, Full-Scale Current =
(HVLED1 or HVLED2)
20.2mA, Brightness Code = 0xFF
17
20.2
23
mA
I_{MATCH_HV}
HVLED1 to HVLED2
Matching (Note 10)
Both current sinks
2.7V ≤ V_IN ≤ 5.5V
are assigned to
−2
1
2
%
Control Bank A
V_{REG_CS}
Regulated Current Sink
Headroom Voltage
400
mV
V_{HR_HV}
Minimum Current Sink
Headroom Voltage for
HVLED Current Sinks
I_LED = 95% of nominal, Full-Scale Current =
20.2mA
190 250
mV
4
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