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BL8532B fiches techniques PDF

BELLING - White LED PFM Step-Up DC-DC Converter

Numéro de référence BL8532B
Description White LED PFM Step-Up DC-DC Converter
Fabricant BELLING 
Logo BELLING 





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BL8532B fiche technique
BL8532B
White LED PFM Step-Up DC-DC Converter
Outline:
The BL8532B is a PFM Step-up DC/DC
driver IC with invariant current, design for LED
applications. Thought the external resistance,
output current reach 0mA~500mA.
A low ripple, high efficiency step-up DC/DC
converter can be constructed of BL8532Bxx
with only three external components. Also
available is a CE (chip enable) function that
reduce power consumption
Features:
Low start voltage0.8V ( at Iout=1mA)
Output Current range0~ 500mA
Output Current accuracy:±10%
High Efficiency82%(Type)
PACKAGESOT-89-5.
Applications
Power source for white LED
Supply constant current
Power source for a single or dual-cell
battery-powered equipments
Selection guide
BL8532B-XX X XX
Package:
SNSOT-89-5
Pin configuration
□□BL8532B- PSN
Temperature range:
Cstandard
Pstandard
Pb free
Feedback voltage:
10……100mV
20……200mV
25……250mV
30……300mV
35……350mV
40……400mV
Pin No.
1
2
3
4
5
Symbol
IFB
Vout
CE
Lx
GND
Description
Current feedback pin
Output pin, power supply
for internal circuits
Chip enable pin (active
high)
Switching pin(Nch open
drain)
Ground pin
http://www.belling.com.cn
- 1-
Total 13 Pages
2/20/2013

PagesPages 11
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