PAM2846 Datasheet, PDF (5/14 Pages) Power Analog Micoelectronics – Integrated 6 String LED Boost Type Driver

PAM2846
Integrated 6 String LED Boost Type Driver
Electrical Characteristic
T_A=25°C, V_IN=ENA=12V, L=22μH, Rset=10kΩ, unless otherwise noted
PARAMETER
Conditions
Min
Input Voltage Range
4.8
ENA=high (no switching)
Fsel=high (1.6M switching frequency)
Quiescent Current
Fsel =high (1M switching frequency)
Fsel =high (500k switching frequency)
ENA=low
LDO Stage
Vcc_5V
No switching
4.7
Vcc_5V current_limit
No switching
14
Vcc_5V UVLO Threshold
No switching
3.9
Vcc_5V UVLO Hysteresis
No switching
Vcc_driver
No switching
4.7
Vcc_driver current_limit
No switching
14
Vcc_driver UVLO Threshold
No switching
3.9
Vcc_driver UVLO Hysteresis
No switching
Boost Stage
Switch Rdson
Vcc_5V=5V
Switch Current Limit
Switch Leakage Current
Fsel =Vcc_5V
Switching Frequency
Fsel =Open
Fsel =Gnd
Minimums Duty Cycle
Fsel =Vcc_5V
Fsel =Open
Fsel =Gnd
Maximums Duty Cycle
VC Source Current
VC Sink Current
Typ Max Units
28
V
1
2
10
mA
6
3
5
20
μA
5
5.5
V
74
90
mA
4.2
4.5
V
70
mV
5
5.5
V
74
90
mA
4.2
4.5
V
70
mV
0.2
Ω
2.5
A
1
μA
1.6
MHz
1.0
MHz
500
kHz
20
%
10
%
5
%
90
%
60
μA
60
μA
Power Analog Microelectronics,Inc
www.poweranalog.com
5
07/2008 Rev 1.2