Electronic Components Datasheet Search
  English  ▼

Delete All
ON OFF
ALLDATASHEET.COM

X  

Preview PDF Download HTML

TPS40140RHHTG4 Datasheet(PDF) 50 Page - Texas Instruments

Click here to check the latest version.
Part No. TPS40140RHHTG4
Description  Dual or 2-Phase, Stackable Controller
Download  68 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

TPS40140RHHTG4 Datasheet(HTML) 50 Page - Texas Instruments

Back Button TPS40140RHHTG4 Datasheet HTML 46Page - Texas Instruments TPS40140RHHTG4 Datasheet HTML 47Page - Texas Instruments TPS40140RHHTG4 Datasheet HTML 48Page - Texas Instruments TPS40140RHHTG4 Datasheet HTML 49Page - Texas Instruments TPS40140RHHTG4 Datasheet HTML 50Page - Texas Instruments TPS40140RHHTG4 Datasheet HTML 51Page - Texas Instruments TPS40140RHHTG4 Datasheet HTML 52Page - Texas Instruments TPS40140RHHTG4 Datasheet HTML 53Page - Texas Instruments TPS40140RHHTG4 Datasheet HTML 54Page - Texas Instruments Next Button
Zoom Inzoom in Zoom Outzoom out
 50 / 68 page
background image
OUT
RIPPLE
RIP _ NORM
SW
V
(1 D)
I
I
L f
´
-
=
´
´
PH
PH
PH
RIP _ NORN
m
m 1
N
(D
) (
D)
N
N
I
D (1 D)
+
´
-
´
-
=
´
-
TPS40140
SLUS660I – SEPTEMBER 2005 – REVISED JANUARY 2015
www.ti.com
9.2.2.1 Design Requirements
Table 7. Design Goal Parameters
PARAMETER
TEST CONDITION
MIN
TYP
MAX
UNIT
VIN
Input voltage
10.8
12
13.2
V
VIN(ripple)
Input ripple voltage
IOUT = 32 A
0.15
V
VOUT
Output voltage
1.5
V
Line regulation
10.8 V
≤ VIN ≤ 13.2 V
0.5%
Load regulation
0 V
≤ IOUT ≤ 32 A
0.5%
VP-P
Output ripple voltage
IOUT = 32 A
30
mV
ΔVOUT
Output voltage deviation during load
ΔIOUT = 15 A, VIN = 12 V
50
mV
transient
IOUT
Output current
10.8 V
≤ VIN ≤ 13.2 V
0
32
A
η
Efficiency
IOUT = 32 A VIN = 12 V
87%
fSW
Switching frequency
500
kHz
9.2.2.2 Detailed Design Procedure
9.2.2.2.1
Step 1: Output Capacitor Selection
The output capacitor is typically selected by the output load transient response requirement. Equation 23 in the
dual output design example is used. The inductor L in the equation is equal to the phase inductance divided by
number of phases.
Based on a 15-A load transient with a maximum of 50 mV deviation, a minimum 795-
μF output capacitor is
required. In the design, four 330-
μF, 2 V, SP capacitor are selected to meet this requirement. Each capacitor has
an ESR of 6 m
Ω.
Another criterion for capacitor selection is the output ripple voltage that is determined mainly by the capacitance
and the ESR.
Due to the interleaving of channels, the total output ripple current is smaller than the ripple current from a single
phase. The ripple cancellation factor is expressed in Equation 56.
where
D is the duty cycle for a single phase
NPH is the number of active phases, here it is equal to 2
m = floor (NPH × D) is the maximum integer that does not exceed the (NPH × D), here m is 0
(56)
The output ripple current is then calculated in Equation 57. The maximum output ripple current is 4.3 A with
maximum input voltage.
(57)
With 1.32 mF output capacitance, the ripple voltage at the capacitor is calculated to be 0.82 mV. In the
specification, the output ripple voltage should be less than 30 mV, so based on Equation 24, the required
maximum ESR is 6.7 m
Ω. The selected capacitors can meet this requirement.
9.2.2.2.2
Step 2: Input Capacitor Selection
The input voltage ripple depends on the input capacitance and the ESR. The minimum capacitor and the
maximum ESR can be estimated by Equation 25 and Equation 26 in the dual output design example. The phase
current should be used in the calculation.
For this design, VRIPPLE(CIN) assume is 100mV and VRIPPLE(CinESR) is 50 mV, so the calculated minimum
capacitance is 40
μF and the maximum ESR is 2.7 mΩ. Choosing four 22-μF, 16-V, 2-mΩ ESR ceramic
capacitors meet this requirement.
50
Submit Documentation Feedback
Copyright © 2005–2015, Texas Instruments Incorporated
Product Folder Links: TPS40140


Similar Part No. - TPS40140RHHTG4

ManufacturerPart No.DatasheetDescription
Texas Instruments
Texas Instruments
TPS40140RHHT TI-TPS40140RHHT Datasheet
1Mb / 65P
[Old version datasheet]   DUAL OR 2-PHASE, STACKABLE CONTROLLER
More results

Similar Description - TPS40140RHHTG4

ManufacturerPart No.DatasheetDescription
Texas Instruments
Texas Instruments
TPS40140 TI-TPS40140 Datasheet
1Mb / 65P
[Old version datasheet]   DUAL OR 2-PHASE, STACKABLE CONTROLLER
TPS53851 TI1-TPS53851 Datasheet
1Mb / 64P
[Old version datasheet]   DUAL OR 2-PHASE, STACKABLE CONTROLLER
TPS40140 TI-TPS40140_15 Datasheet
2Mb / 71P
[Old version datasheet]   TPS40140 Dual or 2-Phase, Stackable Controller
TPS40180 TI-TPS40180 Datasheet
1Mb / 52P
[Old version datasheet]   SINGLE PHASE STACKABLE CONTROLLER
ON Semiconductor
ON Semiconductor
NCP81243 ONSEMI-NCP81243 Datasheet
338Kb / 26P
   Dual Output 3 & 2 Phase Controller
February, 2016 ??Rev. 0
NCP81243 ONSEMI-NCP81243_17 Datasheet
341Kb / 26P
   Dual Output 3 & 2 Phase Controller
June, 2017 ??Rev. 2
Microchip Technology
Microchip Technology
MIC21LV32 MICROCHIP-MIC21LV32 Datasheet
1Mb / 50P
   36V Dual Phase, Advanced COT Buck Controller Stackable for Multiphase Operation
02/28/20
Texas Instruments
Texas Instruments
TPS40322 TI1-TPS40322_16 Datasheet
1Mb / 47P
[Old version datasheet]   Dual Output or Two-Phase Synchronous Buck Controller
TPS40322 TI1-TPS40322 Datasheet
1,023Kb / 40P
[Old version datasheet]   Dual Output or Two-Phase Synchronous Buck Controller
TPS40322 TI-TPS40322_15 Datasheet
1Mb / 42P
[Old version datasheet]   Dual Output or Two-Phase Synchronous Buck Controller
More results


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

Go To PDF Page


Link URL




Privacy Policy
ALLDATASHEET.COM
Does ALLDATASHEET help your business so far?  [ DONATE ] 

About Alldatasheet   |   Advertisement   |   Datasheet Upload   |   Contact us   |   Privacy Policy   |   Link Exchange   |   Manufacturer List
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz