900,000+ datasheet pdf search and download

Datasheet4U offers most rated semiconductors data sheet pdf




Diodes Semiconductor Electronic Components Datasheet

PAM2804 Datasheet

HIGH EFFICIENCY LED DRIVER

No Preview Available !

PAM2804
1A STEP-DOWN CONSTANT CURRENT, HIGH EFFICIENCY LED DRIVER
Description
The PAM2804 is a step-down constant current LED driver. When the
input voltage is down to lower than LED forward voltage, then
PAM2804 goes into LDO mode.
Pin Assignments
Top View
TSOT25
The PAM2804 supports a range of input voltages from 2.5V to 6.0V,
allowing the use of a single Li+/Li-polymer cell, 3AA or 4AA cell, USB,
and other standard power sources.
The FB voltage is only 0.1V to achieve high efficiency.
PAM2804 employs internal power switch and synchronous rectifier to
minimize external part count and realize high efficiency.
During shutdown, the input is disconnected from the output and the
shutdown current is less than 1µA. Other key features include
undervoltage lockout to prevent deep battery discharge of the Li+
battery.
Applications
3AA or 4AA Batteries Powered Flashlight
1 Cell Li-Ion Battery Powered Flashlight
Features
Efficiency up to 93%
180µA(typ) Quiescent Current
Output Current: Up to 1A
Internal Synchronous Rectifier
1.5MHz Switching Frequency
Soft-Start
Undervoltage Lockout
Short LED Protection
Open LED Protection
Thermal Shutdown
5-Pin Small TSOT25 Packages
Pb-Free Package
Typical Applications Circuit
PAM2804
Document number: DS36403 Rev. 3 - 2
ILED = 0.1/RS
1 of 10
www.diodes.com
September 2015
© Diodes Incorporated


Diodes Semiconductor Electronic Components Datasheet

PAM2804 Datasheet

HIGH EFFICIENCY LED DRIVER

No Preview Available !

Pin Description
Pin
Number
1
2
3
4
5
Pin
Name
EN
GND
SW
VIN
FB
Function
Enable control input. Force this pin voltage above 1.5V, enables the chip,
and below 0.3V shuts down the device.
Ground
The drains of the internal main and synchronous power MOSFET.
Chip main power supply pin.
Feedback voltage to internal error amplifier, the threshold voltage is 0.1V.
Block Diagram
PAM2804
Absolute Maximum Ratings (@TA = +25°C, unless otherwise specified.)
These are stress ratings only and functional operation is not implied. Exposure to absolute maximum ratings for prolonged time periods may
affect device reliability. All voltages are with respect to ground.
Parameter
Input Pin Voltage
EN, FB Pin Voltage
SW Pin Voltage
Junction Temperature Range
Storage Temperature Range
Soldering Temperature
Rating
-0.3 to +6.5
-0.3 to VIN
-0.3 to (VIN +0.3)
150
-65 to +150
+300, 5sec
Unit
V
°C
PAM2804
Document number: DS36403 Rev. 3 - 2
2 of 10
www.diodes.com
September 2015
© Diodes Incorporated


Part Number PAM2804
Description HIGH EFFICIENCY LED DRIVER
Maker Diodes
Total Page 10 Pages
PDF Download

PAM2804 Datasheet PDF

View PDF for Mobile








Similar Datasheet

1 PAM2800 HIGH POWER WHITE LED DRIVER
Diodes
2 PAM2800 High Power White LED Driver
Power Analog Micoelectronics
3 PAM2801 1W High Power White LED Driver
Power Analog Micoelectronics
4 PAM2803 3W High Power White LED Driver
Power Analog Micoelectronics
5 PAM2803 3W HIGH POWER WHITE LED DRIVER
Diodes
6 PAM2804 HIGH EFFICIENCY LED DRIVER
Diodes
7 PAM2805 3-MODES / 3W WLED DRIVER
Diodes
8 PAM2808 5W HIGH POWER HBLED DRIVER
Diodes





Part Number Start With

0    1    2    3    4    5    6    7    8    9    A    B    C    D    E    F    G    H    I    J    K    L    M    N    O    P    Q    R    S    T    U    V    W    X    Y    Z

Site map

Webmaste! click here

Contact us

Buy Components

Privacy Policy