Motor de Búsqueda de Datasheet de Componentes Electrónicos
Selected language     Spanish  ▼

Delete All
ON OFF
ALLDATASHEET.ES

X  

Preview PDF Download HTML

TPS61300YFFR Datasheet(PDF) 26 Page - Texas Instruments

Click here to check the latest version.
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
Scroll/Zoom Zoom In 100% Zoom Out
Fabricante  TI1 [Texas Instruments]
Página de inicio  http://www.ti.com
Logo 

TPS61300YFFR Datasheet(HTML) 26 Page - Texas Instruments

Zoom Inzoom in Zoom Outzoom out
 26 / 70 page
background image
FLASH
DCLIGHT
LEDCurrent
FLASH_SYNC
Tx- MASK
26
TPS61300, TPS61301
TPS61305, TPS61305A, TPS61306
SLVS957E – JUNE 2009 – REVISED APRIL 2016
www.ti.com
Product Folder Links: TPS61300 TPS61301 TPS61305
Submit Documentation Feedback
Copyright © 2009–2016, Texas Instruments Incorporated
Figure 38. Synchronized Flashlight With Blanking Periods
In high-current mode (HC_SEL = 1), the Tx-MASK input pin is also used to dynamically adjusts the device’s
current limit setting which controls the maximum current drawn from the input source. See Current Limit
Operation for more information.
8.3.10 Undervoltage Lockout
The undervoltage lockout circuit prevents the device from mis-operation at low input voltages. It prevents the
converter from turning on the switch-MOSFET, or rectifier-MOSFET for battery voltages below 2.3 V. The I2C
compatible interface is fully functional down to 2.1-V input voltage.
8.3.11 Storage Capacitor Active Cell Balancing
A fully charged super-capacitor will typically have leakage current of under 1
μA. The TPS6130xx device
integrates an active balancing feature to cut the total leakage current from the super-capacitor and balance
circuit to less than 1.7
μA typically.
The device integrates a window comparator monitoring the tap point of the multi-cell super-capacitor. The
balancing output (BAL) is substantially half the actual output voltage (VOUT). If the internal leakage current in one
of the capacitors is larger than that in the other, then the voltage at their junction will tend to change in such a
way that the voltage on the capacitor with the larger (or largest) leakage current will reduce.
When this happens, a current will begin to flow from the BAL output in such a direction as to reduce the amount
by which the voltage changes. The current that will flow after a long period of steady-state conditions will be
approximately equal to the difference between the leakage currents of the pair of capacitors which is being
balanced by the circuit. The output resistance of the balancing circuit (
≈250 Ω) determines how quickly an
imbalance will be corrected.
8.3.12 RED Light Privacy Indicator
The TPS6130xx device provides a high-side linear constant current source to drive low VF LEDs. The LED
current is directly regulated off the battery and can be controlled through the INDC[3:0] bits. Operation is
understood best by referring to the Figure 39 and Figure 40.


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  40  41  42  43  44  45  46  47  48  49  50  51  52  53  54  55  56  57  58  59  60  61  62  63  64  65  66  67  68  69  70 


Datasheet Download




Enlace URL




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

Todo acerca de Alldatasheet   |   Publicidad   |   Contáctenos   |   Política de Privacidad   |   Favorito   |   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