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SI9139DG-2520 датащи(PDF) 4 Page - Vishay Siliconix

номер детали SI9139DG-2520
подробное описание детали  Multi-Output, Individual On/Off Control Power-Supply Controller
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производитель  VISHAY [Vishay Siliconix]
домашняя страница  http://www.vishay.com
Logo VISHAY - Vishay Siliconix

SI9139DG-2520 датащи(HTML) 4 Page - Vishay Siliconix

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Si9139
Vishay Siliconix
New Product
www.vishay.com
4
Document Number: 71841
S-22317—Rev. A, 16-Dec-02
PIN CONFIGURATION
RESET
FBA
FBC
SSOP-28
DHA
BSTC
LXA
DHC
BSTA
LXC
DLC
CSP
DLA
VIN
VL
Top View
25
26
27
28
2
3
4
1
22
23
24
5
6
7
CSN
FBB
COMP
PGND
GND
DLB
REF
BSTB
ONA
ONB
CSB
LXB
DHB
CSA
18
19
20
21
9
10
11
8
15
16
17
12
13
14
PIN DESCRIPTION
Pin
Symbol
Description
1
RESET
Open drain NMOS output active-low timed reset output. RESET swings GND to VL. Goes high after a fixed 32,000 clock
cycle delay following proper power-up of all supply outputs indicating Power_Good.
2
FBC
Feedback for Auxiliary controller C. Normally connected to an external resistor divider used to set the Auxiliary output
voltage.
3
BSTC
Boost capacitor connection for Auxiliary SMPS controller C
4
DHC
Gate-drive output for Auxiliary SMPS controller C high-side MOSFET
5
LXC
Inductor connection for Auxiliary SMPS controller C
6
DLC
Gate-drive output for Auxiliary SMPS controller C low-side MOSFET
7
CSP
Current sense positive input for Auxiliary SMPS controller C
8
CSN
Current sense negative input for Auxiliary SMPS controller C
9
COMP
Auxiliary SMPS controller C compensation connection, if required
10
GND
Analog ground
11
REF
3.3-V internal reference
12
ONA
Logic High enables the SMPS controller A
13
ONB
Logic High enables the SMPS controller B and the Auxiliary SMPS controller C adjustable SMPS controllers
14
CSB
Current sense input for SMPS controller B
15
DHB
Gate-drive output for SMPS controller B high-side MOSFET
16
LXB
Inductor connection for SMPS controller B
17
BSTB
Boost capacitor connection for SMPS controller B
18
DLB
Gate-drive output for SMPS controller B low-side MOSFET
19
PGND
Power ground
20
FBB
Feedback for SMPS controller B
21
VL
5-V logic supply voltage for internal circuitry
22
VIN
Input voltage
23
DLA
Gate-drive output for SMPS controller A low-side MOSFET
24
BSTA
Boost capacitor connection for SMPS controller A
25
LXA
Gate-drive output for SMPS controller A high-side MOSFET
26
DHA
Inductor connection for SMPS controller A low-side MOSFET
27
FBA
Feedback for SMPS controller A
28
CSA
Current sense input for SMPS controller A


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