Electronic Components Datasheet Search
  English  ▼
ALLDATASHEET.NET

X  

MAX16834ATPV+ Datasheet(PDF) 11 Page - Maxim Integrated Products

Part # MAX16834ATPV+
Description  High-Power LED Driver with Integrated High-Side LED Current Sense and PWM Dimming MOSFET Driver
Download  23 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  MAXIM [Maxim Integrated Products]
Direct Link  https://www.maximintegrated.com/en.html
Logo MAXIM - Maxim Integrated Products

MAX16834ATPV+ Datasheet(HTML) 11 Page - Maxim Integrated Products

Back Button MAX16834ATPV+ Datasheet HTML 7Page - Maxim Integrated Products MAX16834ATPV+ Datasheet HTML 8Page - Maxim Integrated Products MAX16834ATPV+ Datasheet HTML 9Page - Maxim Integrated Products MAX16834ATPV+ Datasheet HTML 10Page - Maxim Integrated Products MAX16834ATPV+ Datasheet HTML 11Page - Maxim Integrated Products MAX16834ATPV+ Datasheet HTML 12Page - Maxim Integrated Products MAX16834ATPV+ Datasheet HTML 13Page - Maxim Integrated Products MAX16834ATPV+ Datasheet HTML 14Page - Maxim Integrated Products MAX16834ATPV+ Datasheet HTML 15Page - Maxim Integrated Products Next Button
Zoom Inzoom in Zoom Outzoom out
 11 / 23 page
background image
High-Power LED Driver with Integrated High-Side LED
Current Sense and PWM Dimming MOSFET Driver
______________________________________________________________________________________
11
Programming the LED Current
The LED current is programmed using the voltage on
REFI and the LED current-sense resistor R10 (see
Figure 2). The current is given by:
where VREF is 3.7V and the resistors R5, R6, and R10
are in ohms. The regulation voltage on the LED current-
sense resistor must not exceed 0.3V to prevent activa-
tion of the LED short-circuit protection circuit.
Boost Configuration
In the boost converter (Figure 2), the average inductor
current varies with the line voltage. The maximum aver-
age current occurs at the lowest line voltage. For the
boost converter, the average inductor current is equal
to the input current.
Calculate maximum duty cycle using the below equation.
where VLED is the forward voltage of the LED string in
volts, VD is the forward drop of the rectifier diode D1 in
volts (approximately 0.6V), VINMIN is the minimum input
supply voltage in volts, and VFET is the average drain to
source voltage of the MOSFET Q1 in volts when it is on.
Use an approximate value of 0.2V initially to calculate
DMAX. A more accurate value of the maximum duty
cycle can be calculated once the power MOSFET is
selected based on the maximum inductor current.
Use the following equations to calculate the maximum
average inductor current ILAVG, peak-to-peak inductor
current ripple
∆IL, and the peak inductor current ILP in
amperes:
D
VV
V
VV
V
MAX
LED
D
INMIN
LEDDFET
=
+−
+−
I
VR
RR
R
A
LED
REF
=
×
×+×
()
5
10
6
5
9 9
()
.
VIN
LV
NDRV
Q1
ON
OFF
CS
C1
PWMDIM
SGND
D1
R10
R8
MAX16834
FLT
DIMOUT
SENSE+
OVP+
CLV
COMP
PGND
C3
UVEN
HV
SC
RT/SYNC
C2
IN
L1
VCC
C5
REF
C4
R3
REFI
R5
R6
R2
R1
R9
R4
C7
R7
Q2
C6
C8
LED+
LEDs
LED-
Figure 2. Boost LED Driver


Similar Part No. - MAX16834ATPV+

ManufacturerPart #DatasheetDescription
logo
Maxim Integrated Produc...
MAX16834ATP++ MAXIM-MAX16834ATP+ Datasheet
183Kb / 23P
   High-Power LED Driver with Integrated High-Side LED Current Sense and PWM Dimming MOSFET Driver
Rev 2; 5/09
MAX16834ATP/V++ MAXIM-MAX16834ATP/V+ Datasheet
183Kb / 23P
   High-Power LED Driver with Integrated High-Side LED Current Sense and PWM Dimming MOSFET Driver
Rev 2; 5/09
More results

Similar Description - MAX16834ATPV+

ManufacturerPart #DatasheetDescription
logo
Maxim Integrated Produc...
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
SamHop Microelectronics...
SM8205 SAMHOP-SM8205 Datasheet
437Kb / 13P
   High-Power LED Driver with Integrated PWM Dimming MOSFET Driver
logo
M.S. Kennedy Corporatio...
SM8205 MSK-SM8205 Datasheet
437Kb / 13P
   High-Power LED Driver with Integrated PWM Dimming MOSFET Driver
logo
Micrel Semiconductor
MIC3202 MICREL-MIC3202 Datasheet
853Kb / 19P
   High-Brightness LED Driver with Integrated MOSFET and High-Side Current Sense
MIC3201 MICREL-MIC3201 Datasheet
521Kb / 16P
   High Brightness LED Driver with High-Side Current Sense
logo
Maxim Integrated Produc...
MAX16812 MAXIM-MAX16812 Datasheet
352Kb / 21P
   Integrated High-Voltage LED Driver with Analog and PWM Dimming Control
Rev 0; 7/07
logo
Micrel Semiconductor
MIC3201 MICREL-MIC3201_11 Datasheet
698Kb / 16P
   High Brightness LED Driver with High-Side Current Sense
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
TPS92515 TI1-TPS92515 Datasheet
1Mb / 39P
[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


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


Datasheet Download

Go To PDF Page


Link URL




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

About Alldatasheet   |   Advertisement   |   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
Family Site : ic2ic.com  |   icmetro.com