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TDA21321 データシート(PDF) 5 Page - Infineon Technologies AG

部品番号 TDA21321
部品情報  Desktop and Server Vcore and non-Vcore buck-converter
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メーカー  INFINEON [Infineon Technologies AG]
ホームページ  http://www.infineon.com
Logo INFINEON - Infineon Technologies AG

TDA21321 データシート(HTML) 5 Page - Infineon Technologies AG

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TDA21321
Description
Data Sheet
5
Revision 2.4, 2015-07-16
3
Description
3.1
Pinout
Figure 2
Pinout, Numbering and Name of Pins (transparent top view)
Table 2
I/O Signals
Pin No.
Name
Pin Type Buffer Type Function
2
PWM
I/O
+3.3 V logic
PWM drive logic input, Status output for VCIN
The tri-state PWM input is compatible with 3.3 V.
3
OFF#
I
+3.3 V logic
Deactivates LS-MOSFET
Pull low to prevent LS-FET turn-on. Leave open if not used.
(If traced out in noisy layout it may require external pull up.)
4
IMON
O
Analog
Load current Sensing
Provides a voltage proportional to the high/low-side
MOSFET currents; Leave open if not used.
5
IMONREF
O
Analog
Load current Sensing
Reference to pin 4; Leave open if not used.
7
TMON/FAULT O
Analog/
Digital
Thermal Sensing / Fault Pin
Temperature reporting, fault signaling by
logic “H”; Status
output of VDRV, Leave open if not used.
8
BOOT
I
Analog
Bootstrap voltage pin
Connect to BOOT capacitor
9
PHASE
I
Analog
Switch node input
Internally connected to SW pins, Connect to BOOT
capacitor as reference pin for boot voltage
33-38
(pads)
SW
O
Analog
Switch node output
High current output switching node


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