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TPS40140RHHT Datasheet(PDF) 3 Page - Texas Instruments

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Part No. TPS40140RHHT
Description  Dual or 2-Phase, Stackable Controller
Download  68 Pages
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

TPS40140RHHT Datasheet(HTML) 3 Page - Texas Instruments

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DIFFO
VOUT
GSNS
PHSEL
RT
VSHARE
GND
BP5
FB2
1
2
3
4
5
6
7
8
9
BOOT1
HDRV1
SW1
LDRV1
PGND
LDRV2
VREG
SW2
HDRV2
TPS40140
www.ti.com
SLUS660I – SEPTEMBER 2005 – REVISED JANUARY 2015
5 Device Comparison Table
DEVICE
DESCRIPTION
TPS40130
2-phase synchronous buck controller with integrated MOSFET drivers
TPS40090
4-channel multi-phase DC-DC controller with tri-state
TPS40120
Feedback divider, digitally controlled
6 Pin Configuration and Functions
RHH PACKAGE
VQFN 36-PINS
(TOP VIEW)
The thermal pad is an electrical ground connection.
Pin Functions
PIN(1)
I/O
DESCRIPTION
NAME
NO.
BOOT1 provides a bootstrapped supply for the high side FET driver for PWM1, enabling the gate of the high
BOOT1
27
I
side FET to be driven above the input supply rail. Connect a capacitor from BOOT1 to SW1 pin and a Schottky
diode from this pin to VREG.
BOOT2 provides a bootstrapped supply for the high side FET driver for PWM2, enabling the gate of the high
BOOT2
18
I
side FET to be driven above the input supply rail. Connect a capacitor from BOOT2 to SW2 pin and a Schottky
diode from this pin to VREG.
Filtered input from the VREG pin. A 10-
Ω resistor should be connected between VREG and BP5 and a 1.0-μF
BP5
8
I
ceramic capacitor should be connected from BP5 to ground.
Digital clock signal for synchronizing slave controllers to the master CLKIO frequency and is either 6 or 8 times
CLKIO
28
O
the PWM switching frequency.
COMP1
35
O
Output of the error amplifier, CH1. The voltage at this pin determines the duty cycle for the PWM1.
(1)
It is often necessary to refer to a pin or pins that are used in CH1 and/or CH2. The shortcut nomenclature used is the pin name with a
lower case 'x' to mean either or both channels. For example, TRKx refers to TRK1 and/or TRK2.
Copyright © 2005–2015, Texas Instruments Incorporated
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Product Folder Links: TPS40140


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