Diodes AL5811 - Manual (Page 3)

AL5811
Document number: DS35255 Rev. 1 - 2
3 of 13
www.diodes.com
January 2013
© Diodes Incorporated
NEW PROD
UC
T
AL5811
Package Thermal Data
Package
θ
JC
Thermal Resistance
Junction-to-case
(Note 5)
θ
JA
Thermal Resistance
Junction-to-Ambient
(Note 5)
P
DIS
T
A
= +25°C,
T
J
= +125°C
MSOP-8EP 37 85°C/W (Note 6) 1.2W
U-DFN3030-6 13 71°C/W (Note 7) 1.40W
Notes: 5. Dominant conduction path via exposed pad.
6. Test condition for MSOP-8EP: Device mounted on FR-4 PCB (51mm x 51mm 2oz copper, minimum recommended pad layout on top layer and
thermal vias to bottom layer ground plane. For better thermal performance, larger copper pad for heat-sink is needed.
7. Test condition for U-DFN3030-6: Device mounted on FR-4 PCB (51mm x 51mm 2oz copper, minimum recommended pad layout on top layer and
thermal vias to bottom layer with maximum area ground plane. For better thermal performance, larger copper pad for heat-sink is needed
Recommended Operating Conditions
(@T
A
= +25°C, unless otherwise specified.)
Symbol Parameter Min Max Unit
V
CC
Supply Voltage Range Relative to GND Pin 3.5 60
V
V
LED
OUT Voltage Range Relative to GND Pin 1.0 60
I
LED
LED Pin Current (Note 8) 10 75 mA
T
A
Operating Ambient Temperature Range -40 +125 °C
Note: 8. Maximum LED current is also limited by ambient temperature and power dissipation such that junction temperature should
be kept less than or equal 125°C.
Electrical Characteristics
(@T
A
= +25°C, V
CC
= 3.5V, V
LED
= 1.0 (Note 9), R
SET
= 15kΩ, unless otherwise specified.)
Symbol Parameter Conditions Min Typ Max Unit
V
RSET
R
SET
Voltage T
A
= -40°C to +125°C 0.5 V
I
LED
I
LED
Current Accuracy
R
SET
= 37.5kΩ
T
A
= +25°C
18 20 22
mA
R
SET
= 10kΩ 70 75 80
R
SET
= 15kΩ
47 50 53
T
A
= -40°C to +125°C 46 54
REG
LINE
LED Current Line Regulation V
CC
= 3.5V to 60V T
A
= +25°C 0.25 %
I
CC
Supply Current 3.5V ≤ V
CC
≤ 60V
T
A
= +25°C 200 300
µA
T
A
= -40°C to +125°C 350
I
LEAK
LED Pin Leakage Current
V
CC
= 60V; V
LED
= 60V
RSET = Open Circuit
T
A
= +125°C 1 µA
T
SHDN
Thermal Shutdown 155 °C
T
HYS
Thermal Shutdown Hysteresis 20 °C
Note: 9. All voltages unless otherwise stated are measured with respect to GND pin.