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TPS40192DRCRG4 Datasheet(PDF) 9 Page - Texas Instruments

Part # TPS40192DRCRG4
Description  4.5-V TO 18-V INPUT 10-PIN SYNCHRONOUS BUCK CONTROLLER WITH POWER GOOD
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

TPS40192DRCRG4 Datasheet(HTML) 9 Page - Texas Instruments

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DEVICE INFORMATION
DRC PACKAGE
(TOP VIEW)
PGD
5
VDD
4
COMP
3
FB
2
ENABLE
1
6
7
8
9
10
BP5
LDRV BOOT
SW
HDRV
TPS40192
TPS40193
TPS40192, TPS40193
SLUS719B – MARCH 2007 – REVISED SEPTEMBER 2007
Table 1. TERMINAL FUNCTIONS
TERMINAL
I/O
DESCRIPTION
NAME
NO.
Gate drive voltage for the high-side N-channel MOSFET. A capacitor 100 nF typical must be connected
BOOT
8
I
between this pin and SW.
Output bypass for the internal regulator. Connect at least 1
μF capacitor from this pin to GND. Larger
capacitors, up to 4.7
μF will improve noise performance when using a low side FET with a gate charge of
BP5
6
O
25nC or greater. Low power, low noise loads may be connected here if desired. The sum of the external
load and the gate drive requirements must not exceed 50 mA. This regulator is turned off when ENABLE is
pulled low.
COMP
3
O
Output of the error amplifier.
Logic level input which starts or stops the controller from an external user command. A high-level turns the
ENABLE
1
I
controller on. A weak internal pull-up holds this pin high so that the pin may be left floating if this function is
not used.
Inverting input to the error amplifier. In normal operation the voltage on this pin is equal to the internal
FB
2
I
reference voltage (591 mV typical)
GND
(11)
-
Thermal pad ground connection. Common reference for the device. Connect to the system GND.
HDRV
10
O
Bootstrapped output for driving the gate of the high side N channel FET.
LDRV
7
O
Output to the rectifier MOSFET gate
PGD
5
O
Open drain power good output
Sense line for the adaptive anti-cross conduction circuitry. Serves as common connection for the flying high
SW
9
I
side MOSFET driver
VDD
4
I
Power input to the controller
Copyright © 2007, Texas Instruments Incorporated
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Product Folder Link(s): TPS40192 TPS40193


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