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SI9139DG-2522 Fiches technique(PDF) 3 Page - Vishay Siliconix

No de pièce SI9139DG-2522
Description  Multi-Output, Individual On/Off Control Power-Supply Controller
Download  17 Pages
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Fabricant  VISHAY [Vishay Siliconix]
Site Internet  http://www.vishay.com
Logo VISHAY - Vishay Siliconix

SI9139DG-2522 Fiches technique(HTML) 3 Page - Vishay Siliconix

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Si9139
Vishay Siliconix
New Product
Document Number: 71841
S-22317—Rev. A, 16-Dec-02
www.vishay.com
3
SPECIFICATIONS
Limits
Test Conditions
Parameter
Unit
Maxa
Typb
Mina
VIN = 15 V , IVL = IREF = 0 mA
TA = -40_C to 85_C, All Controllers ON
Internal 5-V Regulator
VL Output Current (Internal and External)
30
60
mA
VL Output
All Controllers OFF, VIN >5.5 V, 0 <IL <30 mA
4.7
5.5
VL Fault Lockout Voltage
VL Falling Edge
3.6
4.2
V
VL Fault Lockout Hysteresis
75
mV
Reference
REF Output
3.24
3.3
3.36
V
REF Load Regulation
0 to 1 mA
25
60
mV
Auxiliary Feedback Voltage
FBC Pin
1.20
1.24
1.28
V
Supply Current
Supply Current
*Shutdown
All Converters OFF, No Load
25
60
m
Supply Current
*Operation
All Controllers ON, No Load, fOSC = 300 kHz
1100
1800
mA
Oscillator
Oscillator Frequency
270
300
330
kHz
Maximum Duty Cycle
92
95
%
Fault Detection SMPSA and SMPSB Outputs
Overvoltage Trip Threshold
With Respect To Unloaded Output Voltage
6
10
14
%
Overvoltage-Fault Propagation Delay
CSA or CSB Driven 2% Above Overvoltage Trip
Threshold
1.5
ms
Output Undervoltage Threshold
With Respect to Unloaded Output Voltage
-40
-30
-20
%
Output Undervoltage Lockout Time
From each SMPS Enabled
16
20
24
ms
RESET
RESET Start Threshold
With Respect To Unloaded Output Voltage
Rising Edge
-5.5
%
RESET Propagation Delay (Falling)
Falling Edge, FBA or FBB Driven 2% Above Overvol-
tage or 2% Below Undervoltage Lockout Thresholds
1.5
ms
RESET Delay Time (Rising)
With Respect to 2nd SMPS Lockout Time Done
92
107
122
ms
Inputs and Outputs
Feedback Input Leakage Current
FBC = 1.24 V
1
m
Input Leakage Current
ONA, ONB, VIN = 0 V or VL
"1
mA
Gate Driver Sink/Source Current (Buck)
DLA, DHA, DLB, DHB Forced to 2 V
1
A
Gate Driver On-Resistance (Buck)
High or Low
2
7
W
Gate Driver Sink/Source Current (Auxiliary)
DHC, DLC Forced to 2 V
0.2
A
Gate Driver On-Resistance (Auxiliary)
High or Low
15
W
RESET Output Low Voltage
RESET, ISINK = 4 mA
0.4
V
RESET Output High Leakage
RESET = 5 V
1
mA
ONA, ONB
Logic Low
VIL
0.8
Logic High
VIH
2.4
V
Notes
a.
The algebraic convention is used 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, and are measured at TA = 25_C.


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