CAT3604V Datasheet, PDF (4/14 Pages) Catalyst Semiconductor – 4-Channel Quad-Mode™ LED Driver with Open/Short LED Detection

CAT3604V
Table 4. A.C. CHARACTERISTICS
(For 2.5 V ≤ VIN ≤ 5.5 V, over full ambient temperature range −40 to +85°C.)
Symbol
Name
Conditions
T_LED
LED current settling time from shutdown mode
1x mode, V_IN = 4 V
1.33x mode, V_IN = 3.5 V
T_MD
T_PWRDWN
Mode transition time
Device power down delay
T_LED−ON
T_LED−OFF
LED on settling time
LED off settling time
Min
Typ
Max
Units
40
ms
400
500
ms
0.9
1.5
ms
1
ms
120
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)
RSET (kW)
2
40.0
5
15.8
10
7.87
15
5.23
20
4.02
25
3.16
30
2.67
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