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ISL97672A
Electrical Specifications All specifications are tested at T A = +25°C, V IN = 12V, EN = 5V, R SET = 20.5k Ω , unless otherwise noted. Boldface
limits apply over the operating junction temperature range, -40°C to +85°C.
MIN
MAX
PARAMETER
FLAG_ON
DESCRIPTION
Flag Voltage when Fault Occurs
CONDITION
When Fault Occurs,
(Note 8)
TYP
0.04
(Note 8)
0.12
UNIT
V
I PULLUP= 4mA
FAULT PIN
I FAULT
V FAULT
LXstart_thres
ILX Startup
Fault Pull-down Current
Fault Clamp Voltage with Respect to V IN
LX Start-up Threshold
LX Start-up Current
V IN = 12V
V IN = 12, V IN - V FAULT
VDC = 5.0V
12
6
0.9
1
21
7
3.5
30
8.3
1.2
5
μA
V
V
mA
NOTES:
8. Parameters with MIN and/or MAX limits are 100% tested at +25°C, unless otherwise specified. Temperature limits established by characterization
and are not production tested.
9. Compliance to limits is assured by characterization and design.
10. At maximum V IN of 26.5V, minimum V OUT is 28V. Minimum V OUT can be lower at lower V IN .
Typical Performance Curves
100
90
80
100
90
80
6P10S_30mA/CHANNEL
70
60
12V IN
24V IN
5V IN
70
60
12V IN
24V IN
5V IN
50
40
30
20
10
50
40
30
20
10
0
0
5
10
15
20
25
0
0
5
10
15
20
25
30
35
I LED(mA)
FIGURE 3. EFFICIENCY vs UP TO 20mA LED CURRENT (100% LED
DUTY CYCLE) vs V IN
100
90
80
I LED(mA)
FIGURE 4. EFFICIENCY vs UP TO 30mA LED CURRENT (100% LED
DUTY CYCLE) vs V IN
100
80
70
60
580k
1.2MHz
60
580k
1.2MHz
50
40
30
20
10
40
20
0
0
5
10
15
20
25
30
0
0
5
10
15
20
25
30
V IN
FIGURE 5. EFFICIENCY vs V IN vs SWITCHING FREQUENCY AT 20mA
(100% LED DUTY CYCLE)
6
V IN
FIGURE 6. EFFICIENCY vs V IN vs SWITCHING FREQUENCY AT 30mA
(100% LED DUTY CYCLE)
FN7710.3
November 22, 2013
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