Os motores de busca de Datasheet de Componentes eletrônicos
  Portuguese  ▼
ALLDATASHEETPT.COM

X  

Preview PDF HTML

LED7708 Folha de dados(PDF) 43 Page - STMicroelectronics

Nome de Peças LED7708
Descrição Electrónicos  16 channels x 85 mA LED driver with boost controller and 4-wire serial interface
PDF  53 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Fabricante Electrônico  STMICROELECTRONICS [STMicroelectronics]
Página de início  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

LED7708 Folha de dados(HTML) 43 Page - STMicroelectronics

Back Button LED7708 Datasheet HTML 39Page - STMicroelectronics LED7708 Datasheet HTML 40Page - STMicroelectronics LED7708 Datasheet HTML 41Page - STMicroelectronics LED7708 Datasheet HTML 42Page - STMicroelectronics LED7708 Datasheet HTML 43Page - STMicroelectronics LED7708 Datasheet HTML 44Page - STMicroelectronics LED7708 Datasheet HTML 45Page - STMicroelectronics LED7708 Datasheet HTML 46Page - STMicroelectronics LED7708 Datasheet HTML 47Page - STMicroelectronics Next Button
Zoom Inzoom in Zoom Outzoom out
 43 / 53 page
background image
LED7708
Recommended operating conditions
Doc ID 022698 Rev 1
43/53
8.7
Fault management
The LED7708 includes some protection to prevent damage to itself and to the backlight. In
order to satisfy these requirements, the following protection has been implemented:
The XFLT pin is an open drain output (active low) and is affected by the following faulty
conditions:
Figure 17.
Internal signals connected to the XFLT pin
8.7.1
Overvoltage protection
The LED7708 protects itself and the external components from excessive output voltage by
monitoring the voltage at the VFB pin. The overvoltage threshold is given by the following
equation, where R1 and R2 are the resistors of the output divider:
Table 23.
Detected faulty conditions
Faulty Condition
Involved Section
Boost output overvoltage (OV)
Boost controller
External MOSFET overcurrent (OC)
Open channel
Current generators
Excessive channel voltage (LED short-circuit)
Overtemperature protection
Whole device
Table 24.
XFAULT pin behavior
Detected fault
Involved flag
XFLT status
Overvoltage protection
OVPF
Low
Overtemperature alert
OTAF
Low
Open channel
CHSTA16:CHSTA01
Low
LED short-circuit
CHSTA16:CHSTA01
Low



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


Folha de dados Download

Go To PDF Page


Ligação URL



ALLDATASHEET é útil para você?  [ DONATE ] 

Sobre Alldatasheet   |   Publicidade   |   Contato conosco   |   Privacy Policy   |   Link para a ficha técnica    |   roca de Link   |   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
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com