MAX16808 Maxim Integrated Products, MAX16808 Datasheet - Page 7

• Manufacturer Part Number: MAX16808
• Description: (MAX16807 / MAX16808) Integrated 8-Channel LED Drivers
• Manufacturer: Maxim Integrated Products

(V
Typical values are at T
CC
5.08
5.06
5.04
5.02
5.00
4.98
4.96
4.94
4.92
4.90
550
540
530
520
510
500
490
480
470
460
450
10
9
8
7
6
5
4
3
2
1
0
= +15V, V+ = 3V to 5.5V, R
-40
-40
-40
BOOTSTRAP UVLO vs. TEMPERATURE
R
C
-25
-25
-25
T
T
OSCILLATOR FREQUENCY (f
= 3.65kΩ
= 560pF
-10 5 20
-10 5 20 35 50
-10 5
REFERENCE VOLTAGE
vs. TEMPERATURE
vs. TEMPERATURE
TEMPERATURE (°C)
TEMPERATURE (°C)
TEMPERATURE (°C)
20 35 50 65 80 95 110 125
Switch-Mode Boost and SEPIC Controller
_______________________________________________________________________________________
35 50
A
= +25°C, unless otherwise noted.)
Integrated 8-Channel LED Drivers with
65 80
I
65
V
I
REF
V
HYSTERESIS
REF
CC
CC
= 20mA
80
RISING
= 1mA
FALLING
T
95
95
OSC
= 10kΩ, C
110
110
)
125
125
T
= 3.3nF, V
5.05
5.00
4.95
4.90
4.85
4.80
4.75
4.70
4.65
8.04
8.02
8.00
7.98
7.96
7.94
7.92
7.90
7.88
41
39
37
35
33
31
29
27
25
-40
-40
OSCILLATOR R
0
V
-25
V
-25
RT/CT
CC
vs. REFERENCE LOAD CURRENT
10
REF
-10 5 20
= 7.5V
-10 5 20
= 2V
REFERENCE VOLTAGE
STARTUP CURRENT
vs. TEMPERATURE
20
= COMP = open, C
vs. TEMPERATURE
TEMPERATURE (°C)
TEMPERATURE (°C)
T
/C
30
I
REF
T
35 50
35 50
DISCHARGE CURRENT
(mA)
40
Typical Operating Characteristics
65
65
50
80
80
95
95
60
REF
110
110
125
125
70
= 0.1µF, V
5.000
4.998
4.996
4.994
4.992
4.990
4.988
4.986
4.984
4.982
4.980
0.40
0.38
0.36
0.34
0.32
0.30
0.28
0.26
0.24
0.22
0.20
5.1
4.9
4.7
4.5
4.3
4.1
3.9
3.7
3.5
FB
-40
-40
10
= 2V, CS = AGND = PGND = 0V.
vs. TEMPERATURE AFTER STARTUP
CURRENT-SENSE TRIP THRESHOLD
-25
-25
I
REF
OPERATING SUPPLY CURRENT
12
-10 5 20
= 1mA
-10 5 20
(f
REFERENCE VOLTAGE
vs. SUPPLY VOLTAGE
14
vs. TEMPERATURE
OSC
TEMPERATURE (°C)
TEMPERATURE (°C)
16
= f
35 50
35 50
SW
V
CC
18
= 300kHz)
(V)
65
20
65
80
80
C
22
T
= 560pF
95
95
24
110
110
125
125
26
7