MAX16824/MAX16825
High-Voltage, Three-Channel Linear
High-Brightness LED Drivers
4 _______________________________________________________________________________________
ELECTRICAL CHARACTERISTICS (continued)
(V
IN
= 12V, C
REG
= 1µF to GND, I
REG
= 0, R
CS_
= 2Ω from CS_ to GND, T
J
= T
A
= -40°C to +125°C, unless otherwise noted. Typical
values are at T
J
= T
A
= +25°C.) (Note 1)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
CLK Rising to OUT_ Rising Delay t
CRR
50% of CLK rising to 50% of OUT_ rising,
Figure 4
150 ns
CLK Rising to OUT_ Falling Delay t
CRF
50% of CLK rising to 50% of OUT_ falling,
Figure 4
475 ns
OE Rising to OUT_ Rising Delay t
OEH
50% of OE rising to 50% of OUT_ rising,
Figure 3
150 ns
OE Falling to OUT_ Falling Delay t
OEL
50% of OE falling to 50% of OUT_ falling,
Figure 3
475 ns
Note 1: All devices are 100% production tested at T
J
= +25°C and T
J
= +125°C. Limits to -40°C are guaranteed by design.
Note 2: This specification does not include sense resistor tolerance and ground error.
Note 3: Dropout is measured as follows: R
SC_
= 1.21Ω from CS_ to GND. Force 100mA into OUT_ and measure the dropout voltage
from OUT_ to CS_. DVDO = (ΔOUT_ - V
CS_
).
Note 4: OUT’s current regulation varies with load across REG (see the
Typical Operating Characteristics
).
Note 5: Overtemperature protection does not function if the output of the 5V reference (REG) is shorted to ground.
Note 6: Guaranteed by design, not production tested.
0
0.2
0.1
0.5
0.4
0.3
0.6
0.7
0.9
0.8
1.0
-40 -10 5-25 203550658095110125
DROPOUT VOLTAGE vs. TEMPERATURE
MAX16824toc01
TEMPERATURE (
°
C)
DROPOUT VOLTAGE (V)
I
LOAD
= 100mA
0.182
0.192
0.187
0.197
0.202
0.207
0604515 30 75 90 105 120 135 150
CS_ VOLTAGE vs. OUTPUT CURRENT
MAX16824 toc02
OUTPUT CURRENT (mA)
V
CS_
(V)
OUTPUT CURRENT vs. INPUT VOLTAGE
MAX16824 toc03
V
IN
(V)
OUTPUT CURRENT (mA)
262420 226 8 10 12 14 16 182 4
10
30
50
70
90
110
130
150
170
190
-10
028
I
LOAD
= 150mA
I
LOAD
= 100mA
Typical Operating Characteristics
(V
IN
= 12V, C
REG
= 1µF to GND, I
REG
= 0, R
CS_
= 2Ω from CS_ to GND, T
A
= +25°C, unless otherwise noted. Typical values are at
T
A
= +25°C.)
(9 strony)
Manymanuals.com
Manymanuals.de
Manymanuals.fr
Manymanuals.it
Manymanuals.pl
Manymanuals.cz
Manymanuals.es
Manymanuals-pt.com
Komentarze do niniejszej Instrukcji