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MAX16809 Datasheet(PDF) 3 Page - Maxim Integrated Products

Part # MAX16809
Description  Integrated 16-Channel LED Drivers with Switch-Mode Boost and SEPIC Controller
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Manufacturer  MAXIM [Maxim Integrated Products]
Direct Link  https://www.maximintegrated.com/en.html
Logo MAXIM - Maxim Integrated Products

MAX16809 Datasheet(HTML) 3 Page - Maxim Integrated Products

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Integrated 16-Channel LED Drivers with
Switch-Mode Boost and SEPIC Controller
_______________________________________________________________________________________
3
ELECTRICAL CHARACTERISTICS (PWM CONTROLLER) (continued)
(VCC = +15V, V+ = +3V to +5.5V referenced to PGND, RT = 10kΩ, CT = 3.3nF, REF = open, COMP = open, CREF = 0.1µF, VFB = 2V,
CS = AGND, AGND = PGND = 0V; all voltages are measured with respect to AGND, unless otherwise noted. TJ = TA = -40°C to
+125°C, unless otherwise noted. Typical values are at TA = +25°C.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
CURRENT-SENSE AMPLIFIER
Current-Sense Gain
ACS
(Notes 3, 4)
2.85
3
3.40
V/V
Maximum Current-Sense Signal
VCS_MAX
(Note 3)
0.275
0.300
0.325
V
Power-Supply Rejection Ratio
PSRR
12V
≤ VCC ≤ 25V
70
dB
Current-Sense Input Bias Current
ICS
VCOMP = 0V
-1
-2.5
µA
Current Sense to OUT Delay
tPWM
50mV overdrive
60
ns
MOSFET DRIVER
TJ = -40°C to +85°C (Note 2)
4.5
10
OUT Low-Side On-Resistance
VRDS_ONL
ISINK = 200mA
TJ = -40°C to +125°C
4.5
12
TJ = -40°C to +85°C (Note 2)
3.5
7.5
OUT High-Side On-Resistance
VRDS_ONH
ISOURCE =
100mA
TJ = -40°C to +125°C
3.5
10
Source Current (Peak)
ISOURCE
CLOAD = 10nF
2
A
Sink Current (Peak)
ISINK
CLOAD = 10nF
1
A
Rise Time
tR
CLOAD = 1nF
15
ns
Fall Time
tF
CLOAD = 1nF
22
ns
UNDERVOLTAGE LOCKOUT/STARTUP
Startup Voltage Threshold
VCC_START
7.98
8.4
8.82
V
Minimum Operating Voltage After
Turn-On
VCC_MIN
7.1
7.6
8.0
V
Undervoltage-Lockout Hysteresis
UVLOHYST
0.8
V
PULSE-WIDTH MODULATION (PWM)
Maximum Duty Cycle
DMAX
94.5
96
97.5
%
Minimum Duty Cycle
DMIN
0%
SUPPLY CURRENT
Startup Supply Current
ISTART
VCC = 7.5V
32
65
µA
Operating Supply Current
ICC
VFB = VCS = 0V
3
5
mA
VCC Zener Voltage
VZ
ICC = 25mA
24
26.5
V


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