PAM2805 Datasheet, PDF (3/9 Pages) Power Analog Micoelectronics – 3-Modes/3W WLED Driver with 1 or 2 Cell Battery

PAM2805
3-Modes/3W WLED Driver with 1 or 2 Cell Battery
Electrical Characteristic
TA =25℃ , L=2.2uH, CΙΝ=10uF, C = OUT 10uF, C = BLK 1uF, VF=3.4V, unless
otherwise noted.
Parameter
Symbol
C on dit ions
Input Voltage Range
VIN
Feedback Voltage
Start-up Voltage
Hold Voltage
Oscillator Frequenc y
Over Temperature Shutdown
Over Temperature Hysteresis
Maximum O utput Current
Range
Quiescent Current
Switch on Resis tance
Current Limit
Over Voltage Protection(VOUT)
Blinking Frequency
VFB
V_START
V_{HO LD}
F_{O SC}
OTS
OTH
I_{O(M AX)}
I_Q
R_{DS ON}
ILIM
VOVP
FBL K
VIN: 0V→3V
I_{L ED} =20 0m A
V_IN: 3V→0V
I_{L ED} :7 5 0m A→1 0 0m A
V_IN =2.4V
I_LED=0mA, V_O=3.4V,
Device Switching at 1MHz
V_O=3.4V
VO=3.4V
CBL K=1uF
Note1: V_F --- LED Forward Voltage
Min
0.9
90
0.85
750
2
7
Typ
Max Unit
V F-0.2
V
(note 1)
95
100 mV
0.9
V
0.7
V
1.0
1.15 MHz
150
℃
30
℃
mA
1
3
mA
0.1
Ω
A
4.5
V
8.5
10
Hz
Power Analog Microelectronics, Inc
www.poweranalog.com
3
11/2011 Rev1.0