MAX16808 Maxim Integrated Products, MAX16808 Datasheet - Page 8

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

Integrated 8-Channel LED Drivers with
Switch-Mode Boost and SEPIC Controller
8
(V
Typical values are at T
1000
CC
100
100
0.1
10
90
80
70
60
50
40
30
20
10
_______________________________________________________________________________________
1
PROPAGATION DELAY FROM CURRENT-LIMIT
0
= +15V, V+ = 3V to 5.5V, R
COMPARATOR TO OUT vs. TEMPERATURE
10k
-40
C
C
T
T
-25
C
= 10nF
C
= 4.7nF
T
T
vs. OSCILLATOR FREQUENCY
= 3.3nF
= 2.2nF
-10 5 20
TIMING RESISTANCE
100k
TEMPERATURE (°C)
FREQUENCY (Hz)
35 50
7.0
6.5
6.0
5.5
5.0
4.5
4.0
3.5
3.0
2.5
2.0
A
C
C
T
= +25°C, unless otherwise noted.)
20
T
= 1nF
= 560pF
65
C
120
1M
T
C
= 100pF
T
vs. OSCILLATOR FREQUENCY
80
= 220pF
220 320 420
C
T
T
T
95
= 100pF
A
SUPPLY CURRENT
= 10kΩ, C
= +125°C
FREQUENCY (kHz)
110
10M
125
520 620 720
T
= 3.3nF, V
140
120
100
5.0
4.8
4.6
4.4
4.2
4.0
3.8
3.6
3.4
3.2
3.0
2.8
2.6
2.4
2.2
2.0
-20
T
80
60
40
20
A
Typical Operating Characteristics (continued)
0
= -40°C
-40
0.01
820
OUT IMPEDANCE vs. TEMPERATURE
I
ERROR-AMPLIFIER OPEN-LOOP GAIN
SOURCE
-25
920
1
-10 5 20 35 50
AND PHASE vs. FREQUENCY
1020
REF
(R
= 100mA
10 100
DS_ON
TEMPERATURE (°C)
= COMP = open, C
FREQUENCY (Hz)
GAIN
PMOS DRIVER)
1k
10k
65 80
(INTERFACE IDLE, ALL OUTPUTS OFF, R
100k
PHASE
2.00
1.95
1.90
1.85
1.80
1M
SUPPLY CURRENT vs. SUPPLY VOLTAGE
95
MAX16807 toc14
10M
3.0
110
REF
100M
T
125
A
= +125°C
= 0.1µF, V
10
-15
-40
-65
-90
-115
-140
-165
-190
3.5
SUPPLY VOLTAGE (V)
T
A
= -40°C
4.0
FB
T
2.3
2.2
2.1
2.0
1.9
1.8
1.7
1.6
1.5
10
A
= 2V, CS = AGND = PGND = 0V.
9
8
7
6
5
4
3
2
1
0
= +85°C
4.5
-40
-40
T
OUT IMPEDANCE vs. TEMPERATURE
A
I
SINK
-25
-25
= +25°C
COMP VOLTAGE LEVEL TO TURN
OFF DEVICE vs. TEMPERATURE
SET
5.0
= 200mA
-10 5 20
-10 5 20
(R
= 720Ω)
DS_ON
TEMPERATURE (°C)
TEMPERATURE (°C)
5.5
NMOS DRIVER)
35 50
35 50
65
65
80
80
V
CC
95
95
= 15V
110
110
125
125