MAX16807 查看數據表（PDF） - Maxim Integrated
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MAX16807 Datasheet PDF : 19 Pages
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MAX16807
Integrated 8-Channel LED Driver with
Switch-Mode Boost and SEPIC Controller
Typical Operating Characteristics (continued)
(VCC = +15V, V+ = 3V to 5.5V, RT = 10kΩ, CT = 3.3nF, VREF = COMP = open, CREF = 0.1μF, VFB = 2V, VCS = VAGND = VPGND = 0V.
Typical values are at TA = +25°C, unless otherwise noted.)
TIMING RESISTANCE
vs. OSCILLATOR FREQUENCY
1000
CT = 1nF
100
CT = 560pF
CT = 220pF
CT = 100pF
10
CT = 10nF
1 CT = 4.7nF
CT = 3.3nF
CT = 2.2nF
0.1
10k
100k
1M
10M
FREQUENCY (Hz)
OUT IMPEDANCE vs. TEMPERATURE
(RDS_ON PMOS DRIVER)
5.0
4.8 ISOURCE = 100mA
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
-40 -25 -10 5 20 35 50 65 80 95 110 125
TEMPERATURE (°C)
OUT IMPEDANCE vs. TEMPERATURE
(RDS_ON NMOS DRIVER)
10
ISINK = 200mA
9
8
7
6
5
4
3
2
1
0
-40 -25 -10 5 20 35 50 65 80 95 110 125
TEMPERATURE (°C)
PROPAGATION DELAY FROM CURRENT-LIMIT
COMPARATOR TO OUT vs. TEMPERATURE
100
90
80
70
60
50
40
30
20
10
ERROR-AMPLIFIER OPEN-LOOP GAIN
AND PHASE vs. FREQUENCY
MAX16807 toc14
140
10
120
-15
100
GAIN
-40
80
-65
60
PHASE
-90
40
-115
20
-140
0
-165
COMP VOLTAGE LEVEL TO TURN
OFF DEVICE vs. TEMPERATURE
2.3
VCC = 15V
2.2
2.1
2.0
1.9
1.8
1.7
1.6
0
-40 -25 -10 5 20 35 50 65 80 95 110 125
TEMPERATURE (°C)
-20
0.01 1
-190
10 100 1k 10k 100k 1M 10M 100M
FREQUENCY (Hz)
1.5
-40 -25 -10 5 20 35 50 65 80 95 110 125
TEMPERATURE (°C)
SUPPLY CURRENT
vs. OSCILLATOR FREQUENCY
7.0
6.5 CT = 100pF
6.0
5.5
5.0
TA = +125°C
SUPPLY CURRENT vs. SUPPLY VOLTAGE
(INTERFACE IDLE, ALL OUTPUTS OFF, RSET = 720Ω)
2.00
TA = +125°C
TA = +85°C
1.95
TA = +25°C
4.5
TA = -40°C
4.0
3.5
3.0
1.90
TA = -40°C
1.85
2.5
2.0
20 120 220 320 420 520 620 720 820 920 1020
FREQUENCY (kHz)
1.80
3.0 3.5 4.0 4.5 5.0 5.5
SUPPLY VOLTAGE (V)
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