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AL5812FF-7

P1-P3P4-P6P7-P9P10-P12P13-P13
AL5812
Document number: DS35616 Rev. 4 - 2
4 of 13
www.diodes.com
March 2014
© Diodes Incorporated
A
L5812
Electrical Characteristics (@T
A
= +25°C, V
CC
= 3.5V, V
LED
=1V (Note 10), R
SET
= 7.5kΩ 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
= 12.5kΩ
T
A
= +25°C
57 60 63
mA
R
SET
= 4.99kΩ 142.5 150 157.5
R
SET
= 7.5kΩ
97 100 103
T
A
= -40°C to +125°C 95 — 105
REG
LINE
LED Current Line Regulation V
CC
= 3.5V to 60V T
A
= +25°C — 0.25 — %
UVLO Under Voltage Lockout — T
A
= -40°C to +125°C — 2 — V
I
CC
Supply Current 3.5V ≤ V
CC
≤ 60V
T
A
= +25°C — 320 400
µA
T
A
= -40°C to +125°C — — 500
I
LEAK
LED Pin Leakage Current
V
CC
= V
LED
= 60V
R
SET
= Open Circuit
T
A
= +125°C — — 1 µA
T
SHDN
Thermal Shutdown — — — 155 —
C
T
HYS
Thermal Shutdown Hysteresis — — — 20 —
C
Note: 10. All voltages unless otherwise stated are measured with respect to GND pin.
AL5812
Document number: DS35616 Rev. 4 - 2
5 of 13
www.diodes.com
March 2014
© Diodes Incorporated
A
L5812
Typical Performance Characteristics
Notes: 11. These curves have been limited at larger input voltages due to power dissipation.
12. Lower input voltage range is limited by the LED chain voltage
13. The AL5812 has its V
CC
pin connected to its LED pin, which are connected to the positive input supply voltage. R
SET
is connected to AL5812 GND
pin, which is connected to the anode of the LED chain. This creates a high side driver of the LED chain. See Figure 15.
145
140
120
100
60
40
20
0
80
0 5 10 15 20 25 30 35 40 45 50 55 60
INPUT VOLTAGE (V)
Figure 1 LED Current vs. Input Voltage
LED
C
U
R
R
ENT (mA)
V = 1.2V
T = +25°C
LED
A
R = 4.99k
SET
R = 7.5k
SET
R = 12.4k
SET
-40 -25 -10 5
TEMPERATURE (°C)
Figure 2 LED Current vs. Ambient Temperature
20 35 50 65 80 95 110 125
L
E
D
C
U
R
R
E
N
T
(
m
A)
R = 4.99k
SET
R = 7.5k
SET
R = 12.4k
SET
V = 1.2V
V = 3.5V
LED
CC
160
140
120
100
80
60
40
20
0
0 5 10 15 20 25 30
LED VOLTAGE (V)
Figure 3 LED Current vs. LED Pin Voltage (Note 11)
LED CURRENT (mA)
V = 3.5V
T = +25°C
IN
A
R = 4.99k
SET
R = 7.5k
SET
R = 12.4k
SET
0 0.5 1.0 1.5 2.0 2.5 3.0
LED VOLTAGE (V)
Figure 4 LED Current vs. LED Pin Voltage Zoomed
L
E
D
C
U
R
R
E
N
T
(m
A
)
160
140
120
100
80
60
40
20
0
V = 3.5V
T = +25°C
IN
A
R = 12.4k
SET
R = 4.99k
SET
R = 7.5k
SET
0 5 10 15 20 25 30 35 40 45
INPUT VOLTAGE (V)
Figure 5 LED Current vs. Input Voltage - 2 LEDs
(Note 11 & 12)
160
140
120
100
80
60
40
20
0
LED CURRENT (mA)
T = +25°C
A
2 LEDs
R = 12.4k
SET
R = 4.99k
SET
R = 7.5k
SET
0246810121416182022
INPUT VOLTAGE (V)
Figure 6 LED Current vs. Input Voltage
2 LEDs - High Side Drive (Notes 11, 12 &13)
LED
C
U
R
R
ENT (m
A
)
160
140
120
100
80
60
40
20
0
T = +25°C
V pin tied to LED pin
2 LEDs
A
CC
R = 12.4k
SET
R = 4.99k
SET
R = 7.5k
SET
AL5812
Document number: DS35616 Rev. 4 - 2
6 of 13
www.diodes.com
March 2014
© Diodes Incorporated
A
L5812
Typical Performance Characteristics (cont.)
T = +25°C
2 LEDs
R = 7.5k
f = 100Hz
A
SET
PWM
10 200901008040 5030 7060
DUTY CYCLE (%)
Figure 7 LED Current vs. PWM Duty Cycle
110
100
90
80
70
60
50
40
30
20
10
0
LED
C
U
R
R
E
N
T
(mA)
125 160130 155140 145 150135
TEMPERATURE (°C)
Figure 8 LED Current vs. T
SHDN
LED
C
U
R
R
EN
T
(mA)
14
12
10
6
2
-2
8
4
0
T
SHDN
T
HYS
V = 9V
R = 75K
IN
SET
0 5 10 15 20 25 30 35 40 45 50 55 60
INPUT VOLTAGE (V)
Figure 9 R Voltage vs. Input Voltage
SET
0.500
0.495
0.490
0.485
0.480
0.475
R
V
O
L
T
A
G
E (V)
SET
V = 1.2V
T = +25°C
LED
A
R = 7.5k
SET
R = 7.5k
SET
-40 -25 -10 5 20 35 50 65 80 95 110 125
TEMPERATURE (C)
Figure 10 R Voltage vs. Ambient Temperature
SET
0.500
0.495
0.490
0.485
0.480
0.475
R
V
O
L
T
A
G
E (V)
SET
V = 1.2V
V = 3.5V
LED
IN
0 5 10 15 20 25 30 35 40 45 50 55 60
INPUT VOLTAGE (V)
Figure 11 Supply Current vs. Input Voltage
400
350
300
250
200
150
100
50
0
S
U
P
P
L
Y
C
U
R
R
EN
T
(µA)
V = 1.2V
T = +25°C
LED
A
R = 4.99k
SET
R = 7.5k
SET
R = 12.4k
SET
S
U
P
P
L
Y
C
U
R
R
EN
T
(µA)
350
300
250
200
150
100
50
0
-40 -25 -10 5 20 35 50 65 80 95 110 125
TEMPERATURE (°C)
Figure 12 Supply Current vs. Ambient Temperature
R = 4.99k
SET
R = 7.5k
SET
R = 12.4k
SET
V = 1.2V
V = 3.5V
LED
IN
P1-P3P4-P6P7-P9P10-P12P13-P13

AL5812FF-7

Mfr. #:
Buy AL5812FF-7
Manufacturer:
Diodes Incorporated
Description:
LED Lighting Drivers 60V 150mA ADJ Linear LED Driver
Lifecycle:
New from this manufacturer.
Delivery:
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