LP3943 Datasheet, PDF (4/13 Pages) National Semiconductor (TI) – RGB/White/Blue 16-LED Fun Light Driver

Absolute Maximum Ratings (Notes 2,
1)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
V_DD
A0, A1, A2, SCL, SDA, RST
(Collectively called digital pins)
Voltage on LED pins
Junction Temperature
Storage Temperature
Power Dissipation (Note 3)
−0.5V to 6V
6V
V_SS−0.5V to 6V
150˚C
−65˚C to 150˚C
400 mW
ESD (Note 4)
Human Body Model
Machine Model
Charge Device Model
2 kV
200V
1 kV
Operating Ratings (Notes 1, 2)
V_DD
Junction Temperature
Operating Ambient Temperature
Thermal Resistance (θ_JA)
LLP24 (Note 3)
2.3V to 5.5V
−40˚C to +125˚C
−40˚C to +85˚C
37˚C/W
Electrical Characteristics
Unless otherwise noted, V_DD = 5.5V. Typical values and limits appearing in normal type apply for T_J = 25˚C. Limits appearing
in boldface type apply over the entire junction temperature range for operation, T_J = −40˚C to +125˚C. (Note 5)
Symbol
Parameter
Conditions
Typical
Limit
Min
Max
Units
POWER SUPPLY
V_DD
Supply Voltage
I_Q
Supply Current
No Load
Standby
5
2.3
5.5
V
350
550
µA
2.0
5
∆I_Q
Additional Standby Current
V_DD = 5.5V, every LED pin
at 4.3V
2
mA
V_POR
t_w
LED
Power-On Reset Voltage
Reset Pulse Width
1.8
1.96
V
10
ns
V_IL
LOW Level Input Voltage
V_IH
HIGH Level Input Voltage
I_OL
Low Level Output Current
V_OL = 0.4V, V_DD = 2.3V
(Note 6)
−0.5
0.8
V
2.0
5.5
V
9
V_OL = 0.4V, V_DD = 3.0V
V_OL = 0.4V, V_DD = 5.0V
V_OL = 0.7V, V_DD = 2.3V
V_OL = 0.7V, V_DD = 3.0V
V_OL = 0.7V, V_DD = 5.0V
I_LEAK
Input Leakage Current
V_DD = 3.6, V_IN = 0V or V_DD
C_I/O
Input/Output Capacitance
(Note 7)
2.6
ALL DIGITAL PINS (EXCEPT SCL AND SDA PINS)
12
15
mA
15
20
25
−1
1
µA
5
pF
V_IL
LOW Level Input Voltage
V_IH
HIGH Level Input Voltage
I_LEAK
Input Leakage Current
C_IN
Input Capacitance
I²C INTERFACE (SCL AND SDA PINS)
V_IN = 0V (Note 7)
−0.5
0.8
V
2.0
5.5
V
−1
1
µA
2.3
5
pF
V_IL
V_IH
V_OL
I_OL
F_CLK
t_HOLD
LOW Level Input Voltage
HIGH Level Input Voltage
LOW Level Output Voltage
LOW Level Output Current
Clock Frequency
Hold Time Repeated START
Condition
V_OL = 0.4V
(Note 7)
(Note 7)
-0.5
0.3V_DD
V
0.7V_DD
5.5
V
0
0.2V_DD
V
6.5
3
mA
400
kHz
0.6
µs
t_CLK-LP
CLK Low Period
(Note 7)
1.3
µs
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