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CAT3604V
Table 4. A.C. CHARACTERISTICS
(For 2.5 V ≤ V IN ≤ 5.5 V, over full ambient temperature range ? 40 to +85 ° C.)
Symbol
T LED
Name
LED current settling time from shutdown mode
Conditions
1x mode, V IN = 4 V
Min
Typ
40
Max
Units
m s
1.33x mode, V IN = 3.5 V
400
T MD
Mode transition time
500
m s
T PWRDWN
T LED ? ON
T LED ? OFF
Device power down delay
LED on settling time
LED off settling time
0.9
1
120
1.5
ms
m s
ns
Figure 2. CAT3604V Timing Characteristics
LED Current Setting
The nominal LED current is set by the external resistor
connected between the RSET pin and ground. Table 5 lists
standard resistor values for several LED current settings.
Table 5. RESISTOR RSET AND LED CURRENT
LED Current (mA)
2
5
10
15
20
25
30
RSET (k W )
40.0
15.8
7.87
5.23
4.02
3.16
2.67
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