4
MB3842/MB3845
■
BLOCK DIAGRAM (for 1 channel)
SS1
EN1
VIN1
OSC1
BGR1
+
−
COMP
FF1
Q
S
R
OC1
OUT1
CS1
+
−
COMP
MB3842
SS1
EN1
VIN1
OSC1
BGR1
+
−
COMP
FF1
Q
S
R
OC1
OUT1
CS1
+
−
COMP
MB3845
Temperature
protection 1
Charge
pump1
Over current
detection 1
Charge
pump1
Over current
detection 1
Temperature
protection 1