MC44608
ELECTRICAL CHARACTERISTICS
Characteristic
OUTPUT SECTION
Output Resistor
Sink Resistance
Source Resistance
Output Voltage Rise Time (from 3.0 V up to 9.0 V) (Note 1)
Output Voltage Falling Edge Slew−Rate (from 9.0 V down to 3.0 V) (Note 1)
CONTROL INPUT SECTION
Duty Cycle @ I
pin3
= 2.5 mA
Duty Cycle @ I
pin3
= 1.0 mA
Control Input Clamp Voltage (Switching Phase) @ I
pin3
=
−1.0
mA
Latched Phase Control Input Voltage (Standby) @ I
pin3
= +500
mA
Latched Phase Control Input Voltage (Standby) @ I
pin3
= +1.0 mA
current sense section
Maximum Current Sense Input Threshold
Input Bias Current
Standby Current Sense Input Current
Startup Phase Current Sense Input Current
Propagation Delay (Current Sense Input to Output @ V
TH
T MOS = 3.0 V)
Leading Edge Blanking Duration
Leading Edge Blanking Duration
Leading Edge Blanking + Propagation Delay
Leading Edge Blanking + Propagation Delay
oscillator section
Normal Operation Frequency MC44608P40
Normal Operation Frequency MC44608P75
Maximum Duty Cycle @ f = f
osc
OVERvoltage section
Quick OVP Input Filtering (R
demag
= 100 kW)
Propagation Delay (I
demag
> I
ovp
to output low)
Quick OVP Current Threshold
Protection Threshold Level on V
CC
Minimum Gap Between V
CC−OVP
and V
stup−th
T
filt
T
PHL(In/Out)
I
OVP
V
CC−OVP
V
CC−OVP
−
V
stup
−
−
105
14.8
1.0
250
2.0
120
15.3
−
−
−
140
15.8
−
ns
ms
mA
V
V
f
osc
f
osc
d
max
36
68
78
40
75
82
44
82
86
kHz
kHz
%
MC44608P40
MC44608P75
MC44608P40
MC44608P75
V
CS−th
I
B−cs
I
CS−stby
I
CS−stup
T
PLH(In/Out)
T
LEB
T
LEB
T
DLY
T
DLY
0.95
−1.8
180
180
−
−
−
500
370
1.0
−
200
200
220
480
250
680
470
1.05
1.8
220
220
−
−
−
900
570
V
mA
mA
mA
ns
ns
ns
ns
ns
V
LP−stby
V
LP−stby
d
2mA
d
1mA
−
36
4.75
3.4
2.4
−
43
5.0
3.9
3.0
2.0
48
5.25
4.3
3.7
%
%
V
V
V
R
OL
R
OH
t
r
t
f
5.0
−
−
−
8.5
15
50
50
15
−
−
−
ns
ns
W
Symbol
Min
Typ
Max
Unit
1. This parameter is measured using 1.0 nF connected between the output and the ground.
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