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TPS40210-Q1 Fiches technique(PDF) 3 Page - Texas Instruments

No de pièce TPS40210-Q1
Description  TPS4021x-Q1 4.5-V to 52-V Input, Current-Mode Boost Controllers
Download  47 Pages
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Fabricant  TI [Texas Instruments]
Site Internet  http://www.ti.com
Logo TI - Texas Instruments

TPS40210-Q1 Fiches technique(HTML) 3 Page - Texas Instruments

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1
6
5
10
2
3
7
4
8
9
FB
RC
COMP
DIS/EN
SS
GND
VDD
ISNS
GDRV
BP
TPS40210-Q1, TPS40211-Q1
www.ti.com
SLVS861E – AUGUST 2008 – REVISED DECEMBER 2014
5 Pin Configuration and Functions
DGQ Package
10-Pin PDSO PowerPAD™ Package
(Top View)
Pin Functions
PIN
I/O
DESCRIPTION
NAME
NO.
BP
9
O
Regulator output. Connect a 1-
μF bypass capacitor from this pin to GND.
COMP
4
O
Error amplifier output. Connect a control-loop compensation network between the COMP pin and the FB pin.
Disable or enable. Pulling this pin high places the part into a shutdown mode. The prime characteristic of
shutdown mode is a very low quiescent current. Shutdown mode disables the functionality of all blocks and
DIS/EN
3
I
shuts down the BP regulator. This pin has an internal 1-M
Ω pulldown resistor to GND. Leaving this pin
unconnected enables the device.
Error amplifier inverting input. Connect a voltage divider from the output to this pin to set the output voltage.
FB
5
I
Connect a compensation network between this pin and COMP.
GDRV
8
O
Connect the gate of the power N-channel MOSFET to this pin.
GND
6
Device ground
Current sense. Connect an external current-sensing resistor between this pin and GND. The voltage on this
pin provides current feedback in the control loop for detecting an overcurrent condition. Declaration of an
ISNS
7
I
overcurrent condition occurs when ISNS pin voltage exceeds the overcurrent threshold voltage, 150 mV
typical.
Switching-frequency setting. Connect a capacitor from the RC pin to GND. Connect a resistor from the RC
RC
1
I
pin to VDD of the IC power supply and a capacitor from RC to GND.
Soft-start time programming. Connect a capacitor from the SS pin to GND to program the converter soft-
SS
2
I
start time. This pin also functions as a time-out timer when the power supply is in an overcurrent condition.
System input voltage. Connect a local bypass capacitor from this pin to GND. Depending on the amount of
VDD
10
I
required slope compensation, connection of this pin to the converter output might be desirable. See the
Application Information section for additional details.
6 Specifications
6.1 Absolute Maximum Ratings
over operating free-air temperature range unless otherwise noted
(1)
MIN
MAX
UNIT
VDD
–0.3
52
V
Input voltage range
RC, SS, FB, DIS/EN
–0.3
10
V
ISNS
–0.3
8
V
Output voltage range
COMP, BP, GDRV
–0.3
9
V
TJ
Operating junction temperature
–40°C
150
°C
Tstg Storage temperature
–55°C
150
°C
(1)
Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings
only, and do not imply functional operation of the device at these or any other conditions beyond those indicated under Recommended
Operating Conditions. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
Copyright © 2008–2014, Texas Instruments Incorporated
Submit Documentation Feedback
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Product Folder Links: TPS40210-Q1 TPS40211-Q1


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