Motor de Búsqueda de Datasheet de Componentes Electrónicos
  Spanish  ▼
ALLDATASHEET.ES

X  

TPS92515HVDGQT Datasheet(PDF) 10 Page - Texas Instruments

Click here to check the latest version.
No. de pieza TPS92515HVDGQT
Descripción Electrónicos  2-A, Buck LED Driver with Integrated N-channel FET,High-Side Current Sense, and Shunt FET PWM Dimming Capability
Download  39 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Fabricante Electrónico  TI1 [Texas Instruments]
Página de inicio  http://www.ti.com
Logo TI1 - Texas Instruments

TPS92515HVDGQT Datasheet(HTML) 10 Page - Texas Instruments

Back Button TPS92515HVDGQT Datasheet HTML 6Page - Texas Instruments TPS92515HVDGQT Datasheet HTML 7Page - Texas Instruments TPS92515HVDGQT Datasheet HTML 8Page - Texas Instruments TPS92515HVDGQT Datasheet HTML 9Page - Texas Instruments TPS92515HVDGQT Datasheet HTML 10Page - Texas Instruments TPS92515HVDGQT Datasheet HTML 11Page - Texas Instruments TPS92515HVDGQT Datasheet HTML 12Page - Texas Instruments TPS92515HVDGQT Datasheet HTML 13Page - Texas Instruments TPS92515HVDGQT Datasheet HTML 14Page - Texas Instruments Next Button
Zoom Inzoom in Zoom Outzoom out
 10 / 39 page
background image
tON
tOFF
VIADJ and RSENSE
adjust
the peak inductor
current
The Inductance
(L) and tOFF define
'IL-PP
ILave = ILED = IL-Peak ± (ûIL-PP / 2)
IL-Peak = [ VIADJ /10 ] / RSENSE
ûIL-PP = (VLED * tOFF ) / L
The average output current
equals the peak minus half
the peak to peak inductor
ripple
t
10
TPS92515, TPS92515-Q1, TPS92515HV, TPS92515HV-Q1
SLUSBZ6A – APRIL 2016 – REVISED AUGUST 2016
www.ti.com
Product Folder Links: TPS92515 TPS92515-Q1 TPS92515HV TPS92515HV-Q1
Submit Documentation Feedback
Copyright © 2016, Texas Instruments Incorporated
8.3 Feature Description
8.3.1 General Operation
The TPS92515 operates using a peak-current, constant OFF-time as described in Figure 11. Two states dictate
the high-side FET control. The switch turns on and stays on until the programmed peak current is reached. The
peak current is controlled by monitoring the voltage across the sense resistor. When the voltage drop is higher
than the programmed threshold, the peak current is reached, and the switch is turned OFF, which initiates the
OFF-time period. A capacitor on the COFF pin is then charged through a resistor connected to the output. When
the COFF pin voltage reaches the 1-V (typical) threshold, the OFF-time ends. The COFF pin capacitor resets
and the main switch turns ON, and the next cycle begins.
Figure 11. Hysteretic Operation
Although commonly referred to as constant OFF-time, the OFF-time control voltage is normally derived from the
output voltage. This connection ensures constant peak-to-peak ripple. To maintain a constant ripple over various
input and output voltages, the converter OFF-time becomes shorter or longer resulting in a change in frequency.
If the input voltage and output voltage are relatively constant, the frequency also remains constant. If either the
input voltage or the output voltage changes, the frequency changes. For a fixed input voltage, the device
operates at the maximum frequency at 50% duty cycle and the frequency reduces as the duty cycle becomes
shorter or longer. A graphical representation is shown in Figure 12. For a fixed output voltage (VLED), the
frequency is always the maximum at the highest input voltage as shown in Figure 13.


Número de pieza similar - TPS92515HVDGQT

Fabricante ElectrónicoNo. de piezaDatasheetDescripción Electrónicos
logo
Texas Instruments
TPS92515AHV-Q1 TI1-TPS92515AHV-Q1 Datasheet
1Mb / 38P
[Old version datasheet]   2-A, Buck LED Driver with Integrated N-channel FET, High-Side Current Sense, and Shunt FET PWM Dimming Capability
TPS92515AHVQDGQRQ1 TI1-TPS92515AHVQDGQRQ1 Datasheet
1Mb / 38P
[Old version datasheet]   2-A, Buck LED Driver with Integrated N-channel FET, High-Side Current Sense, and Shunt FET PWM Dimming Capability
TPS92515AHVQDGQTQ1 TI1-TPS92515AHVQDGQTQ1 Datasheet
1Mb / 38P
[Old version datasheet]   2-A, Buck LED Driver with Integrated N-channel FET, High-Side Current Sense, and Shunt FET PWM Dimming Capability
More results

Descripción similar - TPS92515HVDGQT

Fabricante ElectrónicoNo. de piezaDatasheetDescripción Electrónicos
logo
Texas Instruments
TPS92515AHV-Q1 TI1-TPS92515AHV-Q1 Datasheet
1Mb / 38P
[Old version datasheet]   2-A, Buck LED Driver with Integrated N-channel FET, High-Side Current Sense, and Shunt FET PWM Dimming Capability
logo
Maxim Integrated Produc...
MAX16834 MAXIM-MAX16834_10 Datasheet
204Kb / 23P
   High-Power LED Driver with Integrated High-Side LED Current Sense and PWM Dimming MOSFET Driver
Rev 3; 1/10
MAX16834 MAXIM-MAX16834 Datasheet
183Kb / 23P
   High-Power LED Driver with Integrated High-Side LED Current Sense and PWM Dimming MOSFET Driver
Rev 2; 5/09
MAX16834 MAXIM-MAX16834_15 Datasheet
233Kb / 23P
   High-Power LED Driver with Integrated High-Side LED Current Sense and PWM Dimming MOSFET Driver
Rev 5; 1/15
logo
Microsemi Corporation
NX2415 MICROSEMI-NX2415 Datasheet
654Kb / 21P
   TWO PHASE SYNCHRONOUS PWM CONTROLLER WITH INTEGRATED FET DRIVER AND DIFFERENTIAL CURRENT SENSE
logo
Princeton Technology Co...
PT6989 PTC-PT6989 Datasheet
279Kb / 4P
   BUCK LED DRIVER WITH PWM DIMMING
logo
Microchip Technology
MCP1633 MICROCHIP-MCP1633_V01 Datasheet
1Mb / 35P
   Low-Side PWM Controller with LED Dimming Capability
Revision B May 2021
MCP1633 MICROCHIP-MCP1633 Datasheet
1Mb / 31P
   Low-Side PWM Controller with LED Dimming Capability
05/14/19
logo
Micrel Semiconductor
MIC3202 MICREL-MIC3202 Datasheet
853Kb / 19P
   High-Brightness LED Driver with Integrated MOSFET and High-Side Current Sense
logo
Shenzhen Huazhimei Semi...
HM7236 HMSEMI-HM7236 Datasheet
672Kb / 7P
   PWM dimming linear buck LED constant current driver
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


Datasheet Descarga

Go To PDF Page


Enlace URL




Política de Privacidad
ALLDATASHEET.ES
¿ALLDATASHEET es útil para Ud.?  [ DONATE ] 

Todo acerca de Alldatasheet   |   Publicidad   |   Contáctenos   |   Política de Privacidad   |   Intercambio de Enlaces   |   Lista de Fabricantes
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
Family Site : ic2ic.com  |   icmetro.com