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PAM2846 Datasheet(PDF) 6 Page - Power Analog Micoelectronics

Part # PAM2846
Description  Integrated 6 String LED Boost Type Driver
PDF  14 Pages
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Manufacturer  PAM [Power Analog Micoelectronics]
Direct Link  http://www.poweranalog.com
Logo PAM - Power Analog Micoelectronics

PAM2846 Datasheet(HTML) 6 Page - Power Analog Micoelectronics

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Electrical Characteristic
T =25°C, V =ENA=12V, L=22 H, Rset=10k
unless otherwise noted .
AIN
μΩ
,
,
Power Analog Microelectronics Inc
6
www.poweranalog.com
PAM2846
Integrated 6 String LED Boost Type Driver
PARAMETER
Conditions
Min
Typ
Max
Units
LED Controller Stage
I=190*1.2V/Riset, Riset=7.68k
30
mA
I=190*1.2V/Riset, Riset=11.3k
20
mA
Full-Scale LED_Output Current
I=190*1.2V/Riset, Riset=22.6k
10
mA
LED current matching
-3
1
+3
%
Iset Voltage
1.2
V
Minimums LED voltage
400
mV
Analog Dimming Range
I=190*1.2V /Riset
I/32
I
mA
PWM Dimming Frequency
100
1k
Hz
Fault Protection
LED_ Overvoltage Threshold
4.6
4.9
5.1
V
LED_ Overvoltage Hysteresis
1
V
Overvoltage Threshold
1.2
V
Overvoltage Hysteresis
80
mV
Thermal-Shutdown
150
°C
Thermal-Shutdown Hysteresis
30
°C
Controll Interface
EN High
1.5
V
EN Low
0.4
V
PWMD High
1.5
V
PWMD Low
0.4
V
Fsel High
Vcc_5V- 0.5
V
Fsel Midlevel
1
2
V
Fsel Low
0.5
V
EN Min pulse width
0.5
μs
EN Max pulse width
10
μs
EN off delay
200
μs
single wire dimming low level
single wire dimming low level
single wire dimming low level
07/2008 Rev 1.2



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