CAT4026_11 Datasheet, PDF (11/14 Pages) ON Semiconductor – 6-Channel LED Controller

Simplified Block Diagram
CAT4026
ANLG
100 k
50 k
PWM
SCA
OCA
C3
VCS
C1
5V
VDD
GND
−
CH−BIAS
+
(1 V−CLAMP)
SHUTDOWN
TIMER
ENABLE
CH[1:6]
+
−
SHORT
DETECT
+
−
1V
FAULT
DETECT
CH−PWM
OPEN
SHORT
−
1 mA/V
4.1 V ₊
500 mV
3.6 V
CATHODE
DETECT
3.6 V−nom
CH−PWM
0.6 V
3V
Ref
15 mA−max
BASE[1:6]
RSET[1:6]
LATCHED
NOT−LATCHED
FLT−OCA
FLT−SCA
1 mA_max
+
−
IFB1
0.5X
VA
1.8 V
VC
1.8 V−nom
0.5X
Figure 17. Simplified Block Diagram
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