TPS40140RHHRG4 datasheet(4/68 Pages) TI1 | Dual or 2-Phase, Stackable Controller

Part No.	TPS40140RHHRG4

Description	Dual or 2-Phase, Stackable Controller

Download	68 Pages

Scroll/Zoom	100%

Manufacturer	TI1 [Texas Instruments]

Direct Link	http://www.ti.com

Logo

4 / 68 page

TPS40140

SLUS660I – SEPTEMBER 2005 – REVISED JANUARY 2015

www.ti.com

Pin Functions (continued)

PIN(1)

I/O

DESCRIPTION

NAME

NO.

COMP2

10

O

Output of the error amplifier, CH2. The voltage at this pin determines the duty cycle for the PWM2.

These pins are used to sense the CH1 phase current. Inductor current can be sensed with an external current

CS1

31

I

sense resistor or by using an external R-C circuit and the inductor’s DC resistance. The traces for these

signals must be connected directly at the current sense element.

These pins are used to sense the CH2 phase current. Inductor current can be sensed with an external current

CS2

14

I

sense resistor or by using an external R-C circuit and the inductor’s DC resistance. The traces for these

signals must be connected directly at the current sense element.

Output of the differential amplifier. The output voltage of the differential amplifier is limited to 5.8 V. For remote

sensing, the voltage at this pin represents the true output voltage without I × R drops that result from high

DIFFO

1

O

current in the PCB traces. The VOUT and GSNS pins must be connected directly at the point of load where

regulation is required. See Layout Guidelines for more information.

Return point of CH1 current sense voltage. The trace for this signal must be connected directly at the current

CSRT1

32

I

sense element.

Return point of CH1 current sense voltage. The trace for this signal must be connected directly at the current

CSRT2

13

I

sense element.

Inverting input of the error amplifier for CH1. In closed loop operation, the voltage at this pin is nominally 700

FB1

36

I

mV. This pin is also monitored for PGOOD1 and undervoltage on CH1.

Inverting input of the error amplifier for CH2. In closed loop operation, the voltage at this pin is nominally 700

FB2

9

I

mV. This pin is also monitored for PGOOD2 and undervoltage on CH2.

GND

7

—

Low noise ground connection to the device.

Inverting input of the differential amplifier. This pin should be connected to ground at the load. If the differential

GSNS

3

I

amplifier is not used, tie this pin to GND or leave open.

Gate drive output for the high-side N-channel MOSFET switch for CH1. Output is referenced to SW1 and is

HDRV1

26

O

bootstrapped for enhancement of the high side switch.

Gate drive output for the high-side N-channel MOSFET switch for CH2. Output is referenced to SW2 and is

HRDV2

19

O

bootstrapped for enhancement of the high side switch.

Used to set the cycle-by-cycle current limit threshold for CH1. If the ILIM1 threshold is reached, the PWM pulse

ILIM1

34

I

is terminated and the converter delivers limited current to the output.

Used to set the cycle-by-cycle current limit threshold for CH2. If the ILIM2 threshold is reached, the PWM pulse

ILIM2

11

I

is terminated and the converter delivers limited current to the output.

LRDV1

24

O

Gate drive output for the low-side synchronous rectifier (SR) N-channel MOSFET for CH1.

LRDV2

22

O

Gate drive output for the low-side synchronous rectifier (SR) N-channel MOSFET for CH2.

Power good indicators for CH1 output voltage. This open-drain output connects to a voltage via an external

PGOOD1

30

O

resistor

Power good indicators for CH2 output voltage. This open-drain output connects to a voltage via an external

PGOOD2

15

O

resistor

Power ground reference for the controller lower gate drivers. There should be a high current return path from

PGND

23

—

the sources of the lower MOSFETs to this pin.

A 20

μA current flows from this pin. In a single controller design, this pin should be grounded. In a multi

PHSEL

4

O

controller configuration, a 39- k

Ω resistor string sets the voltage on this pin determines the proper phasing for

the slaves. See the section on Clock Master, PHSEL, and CLKIO Configurations.

RT

5

I

Connecting a resistor from this pin to ground sets the oscillator frequency.

Connect to the switched node on converter CH1. It is the return for the CH 1 upper gate driver. There should

SW1

25

I

be a high current return path from the source of the upper MOSFET to this pin. This pin is also used by the

adaptive gate drive circuits to minimize the dead time between upper and lower MOSFET conduction.

Connect to the switched node on converter CH2. It is the return for the CH 2 upper gate driver. There should

SW2

20

I

be a high current return path from the source of the upper MOSFET to this pin. This pin is also used by the

adaptive gate drive circuits to minimize the dead time between upper and lower MOSFET conduction.

This is an input to the non-inverting input of the error amplifier CH1. This pin is normally connected to the soft-

TRK1

33

I

start capacitor or to another voltage that is tracked.

This is an input to the non-inverting input of the error amplifier CH2. This pin is normally connected to the soft-

TRK2

12

I

start capacitor or to another voltage that is tracked.

A voltage divider from VIN to this pin determines the input voltage that CH1 starts. When the voltage is

UVLO_CE1

29

I

between 0.5 and 1.5 V the VREG regulator is enabled . When the voltage is 2.1 V or above CH1 soft start is

allowed to begin.

4

Submit Documentation Feedback

Product Folder Links: TPS40140

Similar Part No. - TPS40140RHHRG4

Manufacturer	Part No.	Datasheet	Description
Texas Instruments	TPS40140RHHR	1Mb / 65P	[Old version datasheet] DUAL OR 2-PHASE, STACKABLE CONTROLLER

More results

Similar Description - TPS40140RHHRG4

Manufacturer	Part No.	Datasheet	Description
Texas Instruments	TPS40140	1Mb / 65P	[Old version datasheet] DUAL OR 2-PHASE, STACKABLE CONTROLLER
	TPS53851	1Mb / 64P	[Old version datasheet] DUAL OR 2-PHASE, STACKABLE CONTROLLER
	TPS40140	2Mb / 71P	[Old version datasheet] TPS40140 Dual or 2-Phase, Stackable Controller
	TPS40180	1Mb / 52P	[Old version datasheet] SINGLE PHASE STACKABLE CONTROLLER
ON Semiconductor	NCP81243	338Kb / 26P	Dual Output 3 & 2 Phase Controller February, 2016 ??Rev. 0
ON Semiconductor	NCP81243	341Kb / 26P	Dual Output 3 & 2 Phase Controller June, 2017 ??Rev. 2
Microchip Technology	MIC21LV32	1Mb / 50P	36V Dual Phase, Advanced COT Buck Controller Stackable for Multiphase Operation 02/28/20
Texas Instruments	TPS40322	1Mb / 47P	[Old version datasheet] Dual Output or Two-Phase Synchronous Buck Controller
	TPS40322	1,023Kb / 40P	[Old version datasheet] Dual Output or Two-Phase Synchronous Buck Controller
	TPS40322	1Mb / 42P	[Old version datasheet] Dual Output or Two-Phase Synchronous Buck Controller

More results

TPS40140RHHRG4 Datasheet(PDF) 4 Page - Texas Instruments

TPS40140RHHRG4 Datasheet(HTML) 4 Page - Texas Instruments

Similar Part No. - TPS40140RHHRG4

Similar Description - TPS40140RHHRG4

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68

Datasheet Download

Link URL