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SI786DG データシート(PDF) 2 Page - Vishay Siliconix

部品番号 SI786DG
部品情報  Dual-Output Power-Supply Controller
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メーカー  VISHAY [Vishay Siliconix]
ホームページ  http://www.vishay.com
Logo VISHAY - Vishay Siliconix

SI786DG データシート(HTML) 2 Page - Vishay Siliconix

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Si786
Vishay Siliconix
www.vishay.com
2
Document Number: 70189
S-40807—Rev. J, 26-Apr-04
ABSOLUTE MAXIMUM RATINGS
V+ to GND
-0.3 V to 36 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
PGND to GND
"2 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
VL to GND
-0.3V to 7 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
BST3, BST5 to GND
-0.3V to 36 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
LX3 to BST3
-7 V to 0.3 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
LX5 to BST5
-7 V to 0.3 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Inputs/Outputs to GND
(D1, D2, SHDN, ON5, REF, SS5, CS5. FB5, SYNC, CS3, FB3,
SS3, ON3))
-0.3 V, (VL + 0.3 V)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
VH to GND
-0.3 V to 20 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Q1, Q2 to GND
-0.3 V, (VH + 0.3 V)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DL3, DL5 to PGND
-0.3 V, (VL + 0.3 V)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DH3 to LX3
-0.3 V (BST3 + 0.3 )
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DH5 to LX5
-0.3 V (BST5 + 0.3 )
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
REF, VL Short to GND
Momentary
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
REF Current
20 mA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
VL Current
50 mA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Continuous Power Dissipation (TA = 70_C)a
28-Pin SSOPb
762 mW
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating Temperature Range: (TMIN to TMAX)
Si786CG/CRG/CSG (C-Grade)
0 to 70_C
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Si786LG/LRG/LSG (L-Grade)
−10_ to 90_C
. . . . . . . . . . . . . . . . . . . . . . . . . . .
Si786DG/DRG/DSG (D-Grade)
−40_ to 85_C
. . . . . . . . . . . . . . . . . . . . . . . . .
Lead Temperature (soldering, 10 sec)
300_C
. . . . . . . . . . . . . . . . . . . . . . . . . .
Notes
a.
Device mounted with all leads soldered or welded to PC board.
b.
Derate 9.52 mW/_C above 70_C.
Exposure to Absolute Maximum rating conditions for extended periods may affect device reliability. Stresses above Absolute Maximum rating may cause permanent
damage. Functional operation at conditions other than the operating conditions specified is not implied. Only one Absolute Maximum rating should be applied at any one
time
SPECIFICATIONS
Specific Test Conditions
Limitse
Parameter
V+ = 15 V, IVL = IREF = 0 mA, SHDN = ON3 = ON5 = 5 V
Other Digital Input Levels 0 V or 5 V, TA = TMIN to TMAX
Mina
Typb
Maxa
Unit
3.3-V and 5-V Step-Down Controllers
Input Supply Range
5.5
30
FB5 Output Voltage
0 mV < (CS5-FB5) < 70 mV, 6 V < V + < 30 V
(includes load and line regulation)
4.80
5.08
5.20
V
0 mV < (CS3-FB3) < 70 mV
Si786CG/LG/DG
3.17
3.35
3.46
V
FB3 Output Voltage
0 mV < (CS3-FB3) < 70 mV
6 V < V + < 30 V
(includes load and line regulation)
Si786CRG/LRG/DRG
3.32
3.50
3.60
3
pg
(includes load and line regulation)
Si786CSG/LSG/DSG
3.46
3.65
3.75
Load Regulation
Either Controller (CS_ to FB_ = 0 to 70 mV)
2.5
%
Line Regulation
Either Controller (V+ = 6 V to 30 V)
0.03
%/V
Current Limit Voltage
CS3 FB3 or CS5 FB5
80
100
120
mV
Current-Limit Voltage
CS3-FB3 or CS5-FB5
Si786DG/DRG/DSG
77
100
120
mV
SS3/SS5 Source Current
2.5
4.0
6.5
mA
SS3/SS5 Source Current
Si786DG/DRG/DSG
2.3
4.0
6.5
mA
SS3/SS5 Fault Sink Current
2
mA
Internal Regulator and Reference
VL Output Voltage
ON5 = ON3 = 0 V, 5.5 V < V+ < 30 V
0 mA < IL < 25 mA
4.5
5.5
VL Fault Lockout Voltage
Falling Edge, Hysteresis = 1%
3.6
4.2
V
VL/FB5 Switchover Voltage
Rising Edge of FB5, Hysteresis = 1%
4.2
4.7
V
REF Output Voltage
No External Loadc
3.24
3.36
REF Fault Lockout Voltage
Falling Edge
2.4
3.2
REF Load Regulation
0 mA < IL < 5 mAd
30
75
mV
V+ Shutdown Current
SHDN = D1 = D2 = ON3 = ON5 = 0 V
V+ = 30 V
25
40
A
V+ Standby Current
D1 = D2 = ON3 = ON5 = 0 V, V+ =
70
110
mA
V+ Standby Current
D1 = D2 = ON3 = ON5 = 0 V, V+ =
30 V
Si786DG/DRG/DSG
70
115
Quiescent Power Consumption
D1 = D2 = 0 V, FB5 = CS5 =
5 25 V
5.5
8.6
mW
Quiescent Power Consumption
(both PWM controllers on)
5.25 V
FB3 = CS3 = 3.5 V
Si786DG/DRG/DSG
5.5
9.0
mW
V+ Off Current
FB5 = CS5 = 5.25 V, VL Switched Over to FB5
30
60
mA


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