PAM2804 Datasheet, PDF (3/10 Pages) Power Analog Micoelectronics – 1A Step-Down Constant Current, High Efficiency LED Driver

Recommended Operating Conditions (@TA = +25°C, unless otherwise specified.)
Parameter
Supply Voltage
Operation Temperature Range
Junction Temperature Range
Rating
2.5 to 6.0
-40 to +85
-40 to +125
PAM2804
Unit
°C
Thermal Information
Parameter
Symbol
Package
Max
Unit
Thermal Resistance (Junction to Case)
Thermal Resistance (Junction to Ambient)
Internal Power Dissipation
θJC
TSOT25 (Note 1)
130
θJA
TSOT25
250
PD
TSOT25
400
°C/W
mW
Note:
1. The maximum output current for TSOT25 package is limited by internal power dissipation capacity as described in Application Information herein after.
Electrical Characteristics
(@TA = +25°C, VIN = 4.2V, Real WLED load, L = 4.7µH, CIN = 10µF, CO = 10µF, unless otherwise specified.)
Parameter
Input Voltage Range
Regulated Feedback Voltage
Peak Inductor Current
Quiescent Current
Shutdown Current
Oscillator Frequency
Drain-Source On-State Resistance
SW Leakage Current
High Efficiency
EN Threshold High
EN Threshold Low
EN Leakage Current
Over-Temperature Protection
OTP Hysteresis
Symbol
VIN
VFB
IPK
IQ
ISD
fOSC
RDS(ON)
ILSW
η
VEH
VEL
IEN
OTP
OTH
Test Conditions
-
-
VIN = 5V
No Load
VEN = 0V
VO = 100%
IDS = 100mA
P MOSFET
N MOSFET
-
-
-
-
-
-
-
Min
2.5
0.095
-
-
-
1.2
-
-
-
-
1.5
-
-
-
-
Typ
-
0.100
1.5
180
-
1.5
0.30
0.35
±0.01
93
-
-
±0.01
+150
+30
Max
6.0
0.105
-
-
1
1.8
0.45
0.50
1
-
-
0.3
-
-
-
Units
V
V
A
µA
µA
MHz
Ω
Ω
µA
%
V
V
µA
°C
°C
PAM2804
Document number: DS36403 Rev. 3 - 2
3 of 10
www.diodes.com
September 2015
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