BELLING BL8532B
The BL8532B is a PFM Step-up DC/DC driver IC with invariant current, design for LED applications.FEATURES
:● Low start voltage:0.8V ( at Iout=1mA);
● Output Current range:0~ 500mA;
● Output Current accuracy:±10%;
● High Efficiency:82%(Type);
● PACKAGE: SOT-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: SN:SOT-89-5 Pin configuration: □□BL8532B- PSN Temperature range: C:standard P:standard (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 - 1Total 13 Pages 2/20/2013 Functional block diagram : BL8532B Absolute maximum ratings: PARAMETER VIN Input Voltage Lx Pin voltage CE Pin voltage IFB output voltage Lx Pin current Continuous SOT-23-5 Total Power Dissipation SOT-89-5 Maximum Operating Ambient Temperature Operating Ambient Temperature Storage Temperature Soldering temperature and time SYMBAL VIN VLX VCE VIFB ILX Pd RATINGS 0.3~9 0.3~Vout+0.3 0.3~Vout+0.3 0.3~Vout+0.