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SI4724 Scheda tecnica(PDF) 4 Page - Vishay Siliconix

Il numero della parte SI4724
Spiegazioni elettronici  N-Channel Synchronous MOSFETs With Break-Before-Make
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Produttore elettronici  VISHAY [Vishay Siliconix]
Homepage  http://www.vishay.com
Logo VISHAY - Vishay Siliconix

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Document Number: 71863
S11-1185-Rev. F, 13-Jun-11
Vishay Siliconix
Si4724
This document is subject to change without notice.
THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000
APPLICATION CIRCUIT
PIN CONFIGURATION
Figure 1.
MOSFET
Drive Circuitry
with
Break-Before-
Make
Si4724
CBOOT
CBOOT
D1
S1
D2
S2
VDD
SYNC EN
IN
GND
+
VOUT
GND
DC-DC
Controller
0 V to 30 V
5 V
GND
Q1
Q2
Power Up Sequence:
Ensure VDD is within spec before allowing IN or SYNC EN to be set high.
Power Down Sequence:
Ensure IN and SYNC EN are low before turning VDD off.
13
SO-16
14
15
16
2
3
4
1
10
11
12
5
6
7
9
8
Top View
D1
S1
D1
S1
GND
CBOOT
IN
VDD
SYNC EN
S2
S2
D2
D2
D2
S2
D2
Ordering Information: Si4724CY-T1
Si4724CY-T1-E3 (Lead (Pb)-free)
TRUTH TABLE
Sync EN
CLK
Q1
Q2
HH
ON
OFF
HL
OFF
ON
LH
ON
OFF
LL
OFF
OFF
PIN DESCRIPTION
Pin
Number
Symbol
Description
1, 2
D1
Highside MOSFET Drain
3
GND
Ground
4
IN
Input Logic Signal
5
SYNC EN Synchronous Enable
6, 7, 8
S2
Lowside MOSFET Source
9, 10, 11, 12
D2
Lowside MOSFET Drain
13
VDD
Logic Supply, decoupling to GND with
a cap is strongly recommended.
14
CBOOT
Bootstrap Capacitor for Upper
MOSFET
15, 16
S1
Highside MOSFET Source


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