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Si9139
Vishay Siliconix
New Product
www.vishay.com
2
Document Number: 71841
S-22317
—
Rev. A, 16-Dec-02
ABSOLUTE MAXIMUM RATINGS
V
IN
to GND
P
GND
to GND
V
L
to GND
BST
A
, BST
B
, BST
C
to GND
V
L
Short to GND
LX
A
to BST
A
; LX
B
to BST
B
; LX
C
to BST
C
Inputs/Outputs to GND
(CS
A
, CS
B
, CSP, CSN)
RESET, ON
A
, ON
B
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DL
A
, DL
B
, DL
C
to PGND
. . . . . . . . . . . . . . . . . . . . . . . . .
-0.3 to +36 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
±
2 V
-0.3 to +6.5 V
-0.3 V to +36 V
Continuous
-6.5 V to 0.3 V
. . . . . . . . . . . . . . . . .
-0.3 V to (V
L
+0.3 V)
-0.3 V to +5.5 V
-0.3 V to (V
L
+0.3 V)
. . . . . . . . . . . . . . . . . . . . . . . . . .
DH
A
to LX
A
, DH
B
to LX
B
,
DH
C
to LX
C
Continuous Power Dissipation (T
A
= 70 C)
a
28-Pin SSOP
b
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating Temperature Range
. . . . . . . . . . . . . . . . . . . . . . . . .
Storage Temperature Range
. . . . . . . . . . . . . . . . . . . . . . . . . .
Lead Temperature (Soldering, 10 Sec.)
-0.3 V to (BST
x
+0.3 V)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
762 mW
-40 C to 85 C
-40 C to 125 C
300 C
. . . . . . . . . . . . . . . . . . . . . . . . . .
Notes
a.
b.
Device mounted with all leads soldered or welded to PC board.
Derate 9.52 mW/ C above 70 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.
SPECIFICATIONS
Test Conditions
Limits
Parameter
V
= 15 V , I
= I
= 0 mA
T
A
= -40 C to 85 C, All Controllers ON
Min
a
Typ
b
Max
a
Unit
Buck Controller A
Total Regulation (Line, Load, and Temperature)
V
IN
= 4.5 V to 30 V, 0 < V
CS3
- V
FB3
< 90 mV
V
IN
= 6.0 V to 30 V
V
IN
= 4.5 V to 30 V
0 < V
CS3
- V
FB3
< 90 mV
-3
0
3
±
0.5
±
1.0
±
0.5
Line Regulation
%
Load Regulation
V
OUT
2.5 V
V
OUT
2.5 V
90
125
160
Current Limit
V
CSA
- V
FBA
100
180
mV
Bandwidth
L = 10 H, C = 330 F
50
kHz
Phase Margin
R
SENSE
= 20 m
65
Minimum Duty Cycle
7
%
Buck Controller B
Total Regulation (Line, Load, and Temperature)
V
IN
= 4.5 V to 30 V, 0 < V
CS5
- V
FB5
< 90 mV
V
IN
= 6.0 V to 30 V
V
IN
= 4.5 V to 30 V
0 < V
CSB
- V
FBB
< 90 mV
-3
0
3
±
0.5
±
1.0
±
0.5
Line Regulation
%
Load Regulation
V
OUT
2.5 V
V
OUT
2.5 V
90
125
160
Current Limit
V
CSB
- V
FBB
100
180
mV
Bandwidth
L = 10 H, C = 330 F
50
kHz
Phase Margin
R
SENSE
= 20 m
65
Minimum Duty Cycle
7
%
Auxiliary Controller C
Total Regulation (Line, Load, and Temperature)
Output Voltage Set to 12 V
V
IN
= 4.5 V to 30 V, 0 < V
- V
< 300 mV
R
5
= 26.4 k , R
6
= 10 k (See Figure 1)
V
IN
= 6.0 V to 30 V
V
IN
= 4.5 V to 30 V
0 < V
CSP
- V
FBN
< 300 mV
V
CSP
- V
CSN
L = 10 H, C = 100 F
-5
0
5
±
0.5
±
1.0
±
0.5
%
Line Regulation
Load Regulation
Current Limit
280
360
450
mV
Bandwidth
10
kHz
Phase Margin
R
SENSE
= 100 m , C
comp
= 120 pF
65
Current-Sense Common Mode Voltage Range
0.0
2.1
Feedback Input Voltage Range
0.0
2.1
V
Minimum Duty Cycle
7
Maximum Duty Cycle
V
IN
= 5 V
85
%