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Power Analog Micoelectronics

PAM2842 Datasheet Preview

PAM2842 Datasheet

High Power LED Driver

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Features
n Output Power up to 30W
n Chip Enable with Soft-start
n Analog and PWM Dimming
n Peak Efficiency up to 97%
n Low Quiescent Current
n Switching Frequency Adjustable
n Support Buck/Boost/Sepic Topology
n Over Current Protection
n Over Voltage Protection
n Thermal Protection
n UVLO
n Tiny Pb-Free Packages :
40-Pin QFN6x6 and TSSOP-20
Applications
n Home Lighting
n Automotive Lighting
n Monitor Backlighting
PAM2842
High Power LED Driver
Description
The PAM2842 is a high power LED driver,
capable of driving up to 10 high power LEDs in
series. The PAM2842 supports buck, boost and
sepic topology.
The PAM2842 features over current protection,
over voltage protection, under voltage lockout
and over temperature protection, which prevent
the device from damage.
LED dimming can be done by using a PWM signal
to the COMP pin.
The PAM2842 is available in 40-Pin QFN6x6 and
TSSOP-20 packages.
Typical Application Circuit
Boost with Low Side Current Sense
Vin L1
33μH
1μF
PGND
www.DataSheet4U.com
PGND
SW
SW
HVIN
OV
10μF
EN VDD-5V
PAM2842
VDD-DR
COMP
1μF RT
130kΩ
AGND
Sense+
Sense-
430kΩ
1μF
15kΩ
1kΩ 10nF
Boost with High Side Current Sense
Vin L1
33μH
1μF
10μF
0.14Ω
PGND
SW
PGND
SW
HVIN
OV
EN VDD-5V
PAM2842
VDD-DR
COMP
1μF RT
130kΩ
AGND
Sense+
Sense-
430kΩ
1μF
15kΩ
1kΩ 10nF
0.14Ω
Power Analog Microelectronics,Inc
www.poweranalog.com
1
09/2008 Rev 1.1




Power Analog Micoelectronics

PAM2842 Datasheet Preview

PAM2842 Datasheet

High Power LED Driver

No Preview Available !

PAM2842
High Power LED Driver
Typical Application Circuit
Buck/Boost (Sepic) with Low Side Current Sense Buck/Boost (Sepic) with High Side Current Sense
Vin L1
47μH
1μF
10μF
47μH L2
Vin L1 56kΩ
0.14Ω
47μH
1μF
47μH L2
10μF
PGND
SW
PGND
SW
HVIN
OV
EN VDD-5V
PAM2842
VDD-DR
COMP
1μF RT
130kΩ
AGND
Sense+
Sense-
220kΩ
1μF
12kΩ
1kΩ 10nF
10μF
0.14Ω
PGND
SW
PGND
SW
HVIN
OV
EN VDD-5V
PAM2842
VDD-DR
COMP
1μF RT
130kΩ
AGND
Sense+
Sense-
220kΩ
1μF
12kΩ
1kΩ 10nF
Buck with High Side Current Sense
Vin
0.14Ω
1μF 10μF
PGND
SW
PGND
SW
HVIN
OV
EN VDD-5V
PAM2842
www.DataSheet4U.coVmDD-DR COMP
10μF
1μF
RT
Sense+
130kΩ
AGND
Sense-
L
47μH
1nF
1kΩ 100nF
NC
12kΩ
Power Analog Microelectronics,Inc
www.poweranalog.com
2
09/2008 Rev 1.1


Part Number PAM2842
Description High Power LED Driver
Maker Power Analog Micoelectronics
Total Page 17 Pages
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