MIC4812 Datasheet, PDF (4/12 Pages) Micrel Semiconductor – High Current 6 Channel Linear WLED Driver with DAM™ and Ultra Fast PWM™ Control

Micrel Inc.
Typical Characteristics
100
90
80
70
60
50
40
30
20
10
0
0
275
Average Current
vs. Duty Cycle
20
40
60
80 100
DUTY CYCLE (% )
Dropout Voltage
vs. Temperature
250
225
200
175
RSET =
150
-40 -20 0 20 40 60 80 10 12 14
000
TEMPERATURE (°C)
Peak ILED
vs. Input Voltage
104
LED6
103
102
101
LED4
LED2
LED3
100
LED5
LED1
99
98
3.0
RSET = 8.25kΩ
3.5 4.0 4.5 5.0 5.5
INPUT VOLTAGE(V)
MIC4812
Single Channel Current
1000
vs. R_SET
100
10
1
1
10
100
1000
RSET (kΩ)
Average Current Matching
vs. Temperature
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
RSET = 8.25kΩ
0.0
-40 -20 0 20 40 60 80 100 120 140
TEMPERATURE (°C)
Single Channel Dropout
vs. LED Current
900
800
700
600
500
400
300
200
100
0
0 100 200 300 400 500
LED CURRENT (mA)
LED Current
vs. Temperature
105
LED6
LED2
104
LED4
103
102
101
LED3
100
LED1
99
LED5
98
97
96
RSET = 8.25kΩ
95
-40 -20 0 20 40 60 80 10 12 14
000
TEMPERATURE (°C)
January 2011
4
M9999-010511-A