Datasheet

TDA4863-2
Overview
Version 2.1 8 22 Feb 2005
1.5 Block Diagram
GTDRV
Reference
Voltage
Vref
Gate
Drive
+
-
Voltage
Amp
Multiplier
RS
Flip-Flop
+
-
UVLO
Restart
Timer
+
-
Detector
VSENSE VAOUT
MULTIN ISENSE
DETINVCC GND
+
-
Current
Comp
multout
+
+
-
-
Inhibit
time delay
2.2V
0.2V
2.5V
uvlo
active
shut down
1.5V
1.0V
12.5V
10V
t
dVA
=2us
t
res
=150us
t
dsd
=70ns
20V
+
1V
Inhibit
Enable
OVR
0.5V
1V
3.5V
Vref
-
+
+
-
Clamp
Current
5V
+
-
5.4V
LEB
Figure 3 Internal Bolck Diagram