LP3943 Datasheet, PDF (5/13 Pages) National Semiconductor (TI) – RGB/White/Blue 16-LED Fun Light Driver

Electrical Characteristics (Continued)
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
I²C INTERFACE (SCL AND SDA PINS)
t_CLK-HP
t_SU
CLK High Period
Set-Up Time Repeated
START Condition
(Note 7)
(Note 7)
0.6
µs
0.6
µs
t_DATA-HOLD
t_DATA-SU
t_SU
Data Hold Time
Data Set-Up Time
Set-Up Time for STOP
Condition
(Note 7)
(Note 7)
(Note 7)
300
ns
100
ns
0.6
µs
t_TRANS
Maximum Pulse Width of
Spikes that Must Be
(Note 7)
Suppressed by the Input
50
ns
Filter of Both DATA & CLK
Signals
Note 1: Absolute Maximum Ratings are limits beyond which damage to the device may occur. Operating Ratings are conditions under which operation of the device
is guaranteed. Operating Ratings do not imply guaranteed performance limits. For guaranteed performance limits and associated test conditions, see the Electrical
Characteristics tables.
Note 2: All voltages are with respect to the potential at the GND pin.
Note 3: The part cannot dissipate more than 400mW.
Note 4: The human-body model is 100 pF discharged through 1.5 kΩ. The machine model is 0Ω in series with 100 pF.
Note 5: Limits are guaranteed. All electrical characteristics having room-temperature limits are tested during production with T_J = 25˚C. All hot and cold limits are
guaranteed by correlating the electrical characteristics to process and temperature variations and applying statistical process control.
Note 6: Each LED pin should not exceed 25 mA and each octal (LED0–LED7; LED8–LED15) should not exceed 100 mA. The package should not exceed a total
of 200 mA.
Note 7: Guaranteed by design.
Typical Performance Characteristics
Frequency vs. Temp
(T_A = −40˚C to +85˚C),
V_DD = 2.3V to 3.0V
20079617
5
www.national.com