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TPS2521 Datasheet(PDF) 4 Page - Texas Instruments

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Part # TPS2521
Description  TPS2521xx, 2.7 - 5.7 V, 4 A, 31-m廓 True Reverse Current Blocking eFuse with Input Reverse Polarity Protection
PDF  47 Pages
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

TPS2521 Datasheet(HTML) 4 Page - Texas Instruments

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6 Pin Configuration and Functions
IN
OUT
EN/UVLO
OVCSEL
PG
PGTH
ITIMER
ILM
GND
DVDT
1
2
3
4
10
9
8
7
5
6
Figure 6-1. TPS2521x RPW Package 10-Pin QFN Top View
Table 6-1. Pin Functions
PIN
TYPE
DESCRIPTION
NAME
NO.
EN/UVLO
1
Analog
Input
Active High Enable for the device. A Resistor Divider on this pin from input supply to GND
can be used to adjust the Undervoltage Lockout threshold. Do not leave floating. Refer to
Section 8.3.2 for details.
OVCSEL
2
Analog
Input
Overvoltage Clamp Threshold Select Pin. Refer to Section 8.3.3 for details.
PG
3
Digital
Output
Power Good indication. This is an Open Drain signal which is asserted High when the
internal powerpath is fully turned ON and PGTH input exceeds a certain threshold. Refer
to Section 8.3.9 for more details.
PGTH
4
Analog
Input
Power Good Threshold. Refer to Section 8.3.9 for more details.
IN
5
Power
Power Input.
OUT
6
Power
Power Output.
DVDT
7
Analog
Output
A capacitor from this pin to GND sets the output turn on slew rate. Leave this pin floating
for the fastest turn on slew rate. Refer to Section 8.3.4.1 for details.
GND
8
Ground This is the ground reference for all internal circuits and must be connected to system GND.
ILM
9
Analog
Output
This is a dual function pin used to limit and monitor the output current. An external resistor
from this pin to GND sets the output current limit threshold during start-up as well as
steady state. The pin voltage can also be used as analog output load current monitor
signal. Do not leave floating. Refer to Section 8.3.4.2 for more details.
ITIMER
10
Analog
Output
A capacitor from this pin to GND sets the overcurrent blanking interval during which the
output current can temporarily exceed set current limit (but lower than fast-trip threshold)
before the device overcurrent response takes action. Leave this pin open for fastest
response to overcurrent events. Refer to Section 8.3.4.2 for more details.
TPS2521
SLVSFX8 – MARCH 2021
www.ti.com
4
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Copyright © 2021 Texas Instruments Incorporated
Product Folder Links: TPS2521



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