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TPS61300YFFR Datasheet(PDF) 35 Page - Texas Instruments

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No. de Pieza. TPS61300YFFR
Descripción  TPS6130xx 1.5-A and 4.1-A Multiple LED Camera Flash Driver With I2C Compatible Interface
Descarga  70 Pages
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Fabricante  TI1 [Texas Instruments]
Página de inicio  http://www.ti.com
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TPS61300YFFR Datasheet(HTML) 35 Page - Texas Instruments

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IIN (DC)
Inductor
Current
Rectifier
Current
DIL
f
D
L
V
I
IN
L
×
=
DIL
CurrentLimit
Threshold
IVALLEY = ILIM
IIN (DC)
Increased
LoadCurrent
IOUT (CL)
DIL
f
IPEAK
I
(=I
)
OUT(DC)
LED
35
TPS61300, TPS61301
TPS61305, TPS61305A, TPS61306
www.ti.com
SLVS957E – JUNE 2009 – REVISED APRIL 2016
Product Folder Links: TPS61300 TPS61301 TPS61305
Submit Documentation Feedback
Copyright © 2009–2016, Texas Instruments Incorporated
Figure 53. Inductor and Rectifier Currents in Current Limit Operation
To minimize the requirements on the energy storage capacitor present at the output of the driver (HC_SEL = 1),
the TPS6130xx device can contribute to a larger extent in supporting directly the high-current LED flash strobe.
In fact, the device can dynamically adjust its current limit setting according to the Tx-MASK input.
Table 9. Inductor Current Limit Operation vs HC_SEL and Tx-MASK Inputs
CURRENT LIMIT SETTING
ILIM BIT
HC_SEL INPUT
Tx-MASK INPUT
1250 mA
Low
Low
Low
1750 mA
High
Low
Low
1250 mA
Low
High
Low
1750 mA
High
High
Low
1250 mA
Low
Low
High
1750 mA
High
Low
High
250 mA
Low
High
High
500 mA
High
High
High


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