MLX10803_06 Datasheet, PDF (3/25 Pages) List of Unclassifed Manufacturers – High power LED driver

Block diagram
IC specification MLX10803
High power LED driver
VS/PWM
ROSC
GND
Regulator VDD
5.0 V ± 10 %
VDD
Trim Logic
(incl. Zener Zaps)
POR
Power on Reset
Reference Currents
...
I_{ref_x}
RC Oscillator
tunable: 0.5 MHz to 5 MHz
frequ. tolerance: ± 20 %
1.25V
Start OFF
Start ON
Monoflop with
pseudo random
generator
OFF Timer
4.2 µs (average value)
at f_OSC = 2.5 MHz
ON Timer
23.4 µs (average value)
at f_OSC = 2.5MHz
Debouncing
300 ns
COMP
COMP
divider
1/5
divider
1/10
Minimal
voltage
selection
RSENSE
4V
IREF2
4V
IREF1
VREF
COMP
20mV
VS/PWM
Clamping
max. 12 V
OFF
FF
ON
DRVGATE
3901010803
Rev 024
Page 3/25
Data Sheet
7/DEC/06