Diodes PAM2800 User Manual
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Description
The PAM2800 is a high power white LED driver with 350mA constant
rated source current. It features high efficiency and low quiescent
current, making it ideal for battery powered applications.
Features
• High Efficiency 92%
• Up to 350mA Constant Source Current
• Low Quiescent Current: Typ. 65µA
• 0.5µA Shutdown Current
• Short Circuit Protection
• Open Load LED Protection
• Thermal Protection
• Space Saving Package SOT23-5
• Pb-Free Package
Typical Applications Circuit
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Pin Assignments
Applications
• High Power White LED Driver
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PAM2800
HIGH POWER WHITE LED DRIVER
PAM2800
Document number: DSxxxxx Rev. 1 - 3
Figure 1
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PAM2800
Pin Description
Pin
Number
1
2
3
4
5 VOUT Output
Absolute Maximum Ratings (@T
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.
Input Voltage 6 V
Output Current 350 mA
Output Pin Voltage
Lead Soldering Temperature 300, (5sec) °C
Storage Temperature -65 to +150 °C
Recommended Operating Conditions (@T
Maximum Supply Voltage 5.5 V
Junction Temperature -40 to +125
Operation Temperature -40 to +85
Pin
Name
VIN Input
GND Ground
EN Chip Enable (Active High)
FB Feedback
Parameter Rating Unit
GND -0.3 to V
Parameter Rating Unit
Function
= +25°C, unless otherwise specified.)
A
+0.3
IN
= +25°C, unless otherwise specified.)
A
V
°C
Thermal Information
Parameter Symbol Package Max Unit
Thermal Resistance (Junction to Case)
Thermal Resistance (Junction to Ambient)
Internal Power Dissipation
Electrical Characteristics (@T
Parameter Symbol Test Conditions Min Typ Max Units
Input Voltage
Output Current
Quiescent Current
Efficiency 90 92 %
Over Temperature Shutdown OTS
Over Temperature Hysteresis OTH
V
IN
I
O
I
Q
JC
JA
P
D
= +25°C, VIN = 3.7V, CIN = 1µF, CO = 2.2µF, unless otherwise specified.)
A
300 mA
No Load 65 90 µA
I
= 1mA
O
I
= 1mA
O
PAM2800
Document number: DSxxxxx Rev. 1 - 3
SOT23-5 130
SOT23-5 250
SOT23-5 400 mW
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°C/W
5.5 V
150 °C
30 °C
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Typical Performance Characteristics
(@TA = +25°C, CIN =1µF, CO = 2.2µF, R1 = 62k, R2 = 33k, RS = 0.22, unless otherwise specified.)
PAM2800
PAM2800
Document number: DSxxxxx Rev. 1 - 3
3 of 7
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October 2012
© Diodes Incorporated
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