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DMG
+
−
Demag
Logic
Output
Start−up
Phase
Switching
m
200 A
Phase
1
0
S1
&
Stand−by
Leading Edge
Blanking
2
Isense
MAXIMUM RATINGS
Total Power Supply Current
Output Supply Voltage with Respect to Ground
All Inputs except Vi
Line Voltage Absolute Rating
Recommended Line Voltage Operating Condition
Power Dissipation and Thermal Characteristics
Maximum Power Dissipation at T
Thermal Resistance, Junction−to−Air
Operating Junction Temperature
Operating Ambient Temperature
Demag
1
50 mV
/20 mV
m
m
>24 A
>120 A
Latched off
Phase
2 S
Start−up
Phase
OSC
Enable
Stand−by
OSC
Management
OC
NOC
&
Output
+
CS
−
1 V
Figure 1. Representative Block Diagram
Rating
= 85 C
A
MC44608
UVLO2
Latched off Phase
Start−up Phase
Switching Phase
m
&
OUT Disable
Clock
&
S
+
PWM
PWM
Latch
&
−
R
VPWM
Latched off Phase
Regulation
Block
4 kHz Filter
Symbol
I
CC
V
CC
V
inputs
V
i
V
i
P
D
R
qJA
T
J
T
A
Vi
8
Start−up
9 mA
Source
V
CC
Management
OVP
UVLO1
UVLO2
DMG
Buffer
Thermal
Shutdown
Q
&
Stand−by
S2
S3
Switching Phase
Value
30
16
−1.0 to +16
500
400
600
100
150
−25 to +85
6
V
CC
5
Driver
4
GND
3
Control
Input
Unit
mA
V
V
V
V
mW
C/W
C
C
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