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TPS61055YZG Datasheet(PDF) 11 Page - Texas Instruments

No. de Pieza. TPS61055YZG
Descripción  HIGH POWER WHITE LED DRIVER 2-MHz SYNCHRONOUS BOOST CONVERTER WITH STANDARD LOGIC INTERFACE
Descarga  24 Pages
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Fabricante  TI [Texas Instruments]
Página de inicio  http://www.ti.com
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TPS61055YZG Datasheet(HTML) 11 Page - Texas Instruments

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TRIGGEREDONRISINGEDGE
V =3.6V,
V
=5V,
I
=500mA,
I
=1500mA
I
O
O
LIM
t-Time=50ns/div
SW
(1V/div)
Li-PolymerBatteryat3.3V,I
=700mA,I
=1500
LED
LIM
mA
BatteryVoltage
(10mV/div-3.3VOffset)
V
(20mV/div-4.2VOffset)
OUT
IL
(200mA/div-0.5 A Offset)
(200mA/div-0.3 A Offset)
ILED
t-Time=500ns/div
Frequency=121Hz
DutyCycle=6.25%
V
=3.6V,I
=75mA
IN
TORCH
V
(200mV/div-3.5VOffset)
OUT
I
(20mA/div)
LED
t-Time=2ms/div
FLASH_SYNC
(2V/div)
ILED
(500mA/div)
VOUT
(500mV/div-3.40VOffset)
LEDPinHeadroomVoltage
(200mV/div)
V =3.2V,I
=1500mA
I
=75mA (Torch)to700mA (Flash)
I
LIM
LED
SAFETY TIMERLIMITATION
t-Time=100ms/div
TPS61054, TPS61055
SLUS760 – SEPTEMBER 2007
DUTY CYCLE JITTER
INPUT RIPPLE VOLTAGE
Figure 17.
Figure 18.
LOW-LIGHT DIMMING MODE OPERATION
TORCH/FLASH SEQUENCE
Figure 19.
Figure 20.
Copyright © 2007, Texas Instruments Incorporated
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Product Folder Link(s) :TPS61054, TPS61055


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