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Si9730
Vishay Siliconix
www.vishay.com
2
Document Number: 70658
S-40135—Rev. F, 16-Feb-04
ABSOLUTE MAXIMUM RATINGS
V
M
V
DD
V
C
I
S
V
DD
15 V to V
DD
+15 V
V
SS
0.3 V to V
SS
+12 V
V
SS
0.3 V to V
DD
+0.3 V
V
M
0.3 V to V
DD
+0.3 V
V
SS
0.3 V to V
DD
+0.3 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
(V
SS
V
M
)
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
(V
M
V
SS
)
. . . . . . . . . . . . . . . . . . . . . . . . . .
Maximum Operating Junction Temperature
125 C
. . . . . . . . . . . . . . . . . . . . . .
Power Dissipation
200 mW
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Thermal Impedance (P
JA
)
80 C/W
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage Temperature
55 to 150 C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Stresses beyond those listed under
“
Absolute Maximum Ratings
”
may cause permanent damage to the device. These are stress ratings only, and functional operation of
the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating
conditions for extended periods may affect device reliability.
RECOMMENDED OPERATING RANGE
C
VC
C
D
R
IS
series resistance to sense resistor
DCO Load Capacitance
10 pF from V
C
toV
DD
andV
SS
, Total
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Open to 1.0 F
27 k
. . . . . . . . . . . . . . . . . . . . . . . .
0 to 2000 pF
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
V
DD
to V
SS
V
DD
to V
M
Operating Temperature Range
9 V
12 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
25 to 85 C
SPECIFICATIONS
Test Condition
Unless Otherwise Specified
Limits
T
A
=
25 to 85 C
Min
a
Typ
b
Parameter
Symbol
Max
a
Unit
Power Supply
Supply Current, Charging Operation
I
DD_C
I
DD
I
DD_UVL
V
C1
= V
C2
= 2.6 V, V
DD
V
M
= 8.4 V
V
C1
= V
C2
= 4.05 V, V
M
= V
SS
V
M
= V
DD
,V
C1
= V
C2
= 1.7 V
Measured at V
DD
V
SS
(Falling)
V
C1
= V
C2
, V
DD
V
M
= 5.5 V
V
C1
= V
C2
= 1.7 V, V
DD
= V
M
V
C1
= V
C2
= 2.6 V, V
DD
V
M
= 8.4 V
60
Supply Current Normal Operation
Supply Current, Normal Operation
30
1
A
Undervoltage Lockout Threshold
V
UVL
3.5
3.7
4.0
V
V
M
Leakage Current
V
M
Operating Current
Control Logic
I
VM_UVL
I
VM
1
30
A
DCO Output High Voltage
V
OH
I
OH
=
10 A, V
C1
= V
= 3.3 V
V
DD
V
M
= 6.6 V
V
DD
0.1
V
DCO Rise Time (10% to 80%)
DCO Fall Time (80% to 10%)
t
r
t
f
V
= 2 V, V
= 2.4 V
V
DD
V
M
= 8.4 V C
L
= 500 pF, DCO to V
SS
7.5
1
s
DCO Output Low Voltage
V
OL
I
OL
= 10 A
V
= V
DD
V
C1
= 2 V, V
C2
= 2.4 V
V
= V
V
C1
= V
C2
= 4.4 V, I
S
= V
DD
V
SS
+0.4
V
V
M
+0.52
Analog Section
Current-Limit Comparator Trip Point
V
ILIMIT
V
C1
= V
C2
=4.05 V, V
M
= V
+ 0.25 V
I
S
Rising, T
A
= 25 C
25.5
28
32
mV
Current-Limit
Comparator Temperature Coefficient
Current-Limit
Comparator Response Time
Current Limit Comparator
Input Bias Current
dV
ILIMIT
/dT
0.18
%/ C
t
ILIMIT
V
C1
= V
=3.3 V, V
M
= V
+ 0.25 V
C
L
= 50 pF, DCO to V
SS,
See Figure 2
25
s
I
IS
V
C1
= V
C2
=3.3 V, V
DD
= V
M,
V
IS = VSS
125
nA