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| SI786 Datasheet, PDF (3/14 Pages) Vishay Siliconix – Dual-Output Power-Supply Controller | |||
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Si786
Vishay Siliconix
SPECIFICATIONS
Parameter
Comparators
Specific Test Conditions
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
Limitse
Typb
Maxa
Unit
D1, D2 Trip Voltage
D1, D2 Input Current
Q1, Q2 Source Current
Q1, Q2 Sink Current
Q1, Q2 Output High Voltage
Q1, Q2 Output Low Voltage
Quiescent VH Current
Falling Edge, Hysteresis = 1%
Si786DG/DRG/DSG
D1 = D2 = 0 V, 5 V
VH = 15 V, VOUT = 2.5 V
ISOURCE = 5 mA, VH = 3 V
ISINK = 20 mA, VH = 3 V
VH = 18 V, D1 = D2 = 5 V, No External Load
1.61
1.60
12
200
VH - 0.5
1.69
V
1.69
"100
nA
20
30
mA
500
1000
V
0.4
4
10
mA
Oscillator and Inputs/Outputs
Oscillator Frequency
SYNC High Pulse Width
SYNC Low Pulse Width
SYNC Rise/Fall Time
Oscillator SYNC Range
Maximum Duty Cycle
Input Low Voltage
Input High Voltage
Input Current
DL3/DL5 Sink/Source Current
DH3/DH5 Sink/Source Current
DL3/DL5 On-Resistance
DH3/DH5 On-Resistance
SYNC = 3.3 V
SYNC = 0 V, 5 V
Si786DG/DRG/DSG
Si786DG/DRG/DSG
Not Tested
SYNC = 3.3 V
SYNC = 0 V, 5 V
SHDN, ON3, ON5 SYNC
SHDN, ON3, ON5
SYNC
SHDN, ON3, ON5 VIN = 0 V, 5 V
VOUT = 2 V
BST3 - LX3 = BST5 - LX5 = 4.5 V, VOUT = 2 V
High or Low
High or Low
BST3 - LX3 = BST5 - LX5 = 4.5 V
270
260
170
165
200
200
240
89
92
2.4
VL - 0.5
300
330
300
330
kHz
200
230
200
230
ns
200
350
kHz
92
%
95
0.8
V
"1
mA
1
A
1
7
W
7
Notes
a. The algebraic convention whereby the most negative value is a minimum and the most positive a maximum.
b. Typical values are for DESIGN AID ONLY, not guaranteed nor subject to production testing.
c. The main switching outputs track the reference voltage. Loading the reference reduces the main outputs slightly according to the closed-loop gain (AVCL) and
the reference voltage load-regulation error. AVCL for the 3.3-V supply is unity gain. AVCL for the 5-V supply is 1.54.
d. Since the reference uses VL as its supply, its V+ line regulation error is insignificant.
e. Limits are for all temperature grades unless otherwise noted.
Document Number: 70189
S-40807âRev. J, 26-Apr-04
www.vishay.com
3
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