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TPS923652DYYR Datasheet(PDF) 21 Page - Texas Instruments

Part # TPS923652DYYR
Description  TPS92365x 65-V 2-A / 4-A Boost / Buck-Boost LED Driver with Inductive Fast Dimming
PDF  47 Pages
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

TPS923652DYYR Datasheet(HTML) 21 Page - Texas Instruments

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9 Application and Implementation
9.1 Application Information
The TPS92365x family is typically used as a Boost / Buck-Boost converter to drive one or more LEDs from an
input from 4.5-V to 63-V range.
9.2 Typical Application
9.2.1 TPS923654 Boost, 12-V Input, 1-A Output, 12-piece WLED Driver With Analog Dimming
CSENSE
Thermal Pad
SW
CSP
CSN
OVP
FSET
TEMP
COMP
PGND
AGND
VIN
VCC
EN/PWM
FAULT
ADIM/HD
TPS923654DMTR
RTEMP
RFSET
RCOMP
RDAMP
CCOMP
ROVP2
100nF
D
RSENSE
L
ROVP1
COUT
CVCC
CVIN
0Ω
CIN
VIN = 12V
X12 LED
High
Figure 9-1. Boost, 12-V Input, 1-A Output, 12-piece WLED, Analog Dimming Reference Design
9.2.1.1 Design Requirements
For this design example, use the parameters in the following table.
Table 9-1. Design Parameters
PARAMETER
VALUE
Input voltage range
12 V ±10%
LED forward voltage
3.0 V
Output voltage
36 V (3.0 × 12)
Maximum LED current
1 A
Inductor current ripple
60% of maximum inductor current
LED current ripple
200 mA or less
Input voltage ripple
500 mV or less
Dimming type
Analog dimming with TPS923654: 1-kHz, 1% to 100% PWM input at
the ADIM pin
www.ti.com
TPS923652, TPS923653, TPS923654, TPS923655
SLVSGH1A – APRIL 2023 – REVISED SEPTEMBER 2023
Copyright © 2023 Texas Instruments Incorporated
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Product Folder Links: TPS923652 TPS923653 TPS923654 TPS923655



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