MAX16814_10 Datasheet, PDF (4/25 Pages) Maxim Integrated Products – Integrated, 4-Channel, High-Brightness LED Driver with High-Voltage DC-DC Controller

Integrated, 4-Channel, High-Brightness LED
Driver with High-Voltage DC-DC Controller
ELECTRICAL CHARACTERISTICS (continued)
(VIN = VEN = 12V, RRT = 12.25kI, RSETI = 15kI, CVCC = 1FF, VCC = VDRV, NDRV = COMP = OUT_ = unconnected, VRSDT = VDIM =
VCC, VOVP = VCS = VLEDGND = VPGND = VSGND = 0V, TA = TJ = -40NC to +125NC for MAX16814A_ _ and TA = TJ = 0NC to +85NC for
MAX16814U_ _ and MAX16814BU_ _, unless otherwise noted. Typical values are at TA = +25NC.) (Note 2)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
LED CURRENT SOURCES
OUT_ Current-Sink Range
Channel-to-Channel Matching
VOUT_ = VREF
IOUT_ = 100mA
20
150
mA
±2
%
Output Current Accuracy
IOUT_ =
100mA
TA = +125°C, MAX16814A_ _
only
TA = -40°C to +125°C,
MAX16814A_ _ only
IOUT_ =
TA = +25°C, MAX16814U_ _ and
MAX16814BU_ _
50mA to
150mA ^{TA = 0°C to +85°C, MAX16814U_}
_ and MAX16814BU_ _
±3
mA
±5
±2.75
mA
±4
OUT_ Leakage Current
LOGIC INPUTS/OUTPUTS
VDIM = 0V, VOUT_ = 40V
1
μA
EN Reference Voltage
VEN rising, MAX16814A_ _ only
VEN rising, MAX16814U_ _ and
MAX16814BU_ _
1.125 1.23 1.335
V
1.144 1.23 1.316
EN Hysteresis
50
mV
EN Input Current
VEN = 40V, MAX16814A_ _ only
VEN = 40V, MAX16814U_ _ and
MAX16814BU_ _
±200
nA
±250
DIM Input High Voltage
2.1
V
DIM Input Low Voltage
0.8
V
DIM Hysteresis
250
mV
DIM Input Current
±2
μA
DIM to LED Turn-On Delay
DIM to LED Turn-Off Delay
IOUT_ Rise and Fall Times
FLT Output Low Voltage
FLT Output Leakage Current
LED Short Detection Threshold
DIM rising edge to 10% rise in IOUT_
DIM falling edge to 10% fall in IOUT_
VIN = 4.75V and ISINK = 5mA
VFLT = 5.5V
Gain = 3
100
ns
100
ns
200
ns
0.4
V
1.0
μA
1.75 2.0 2.25
V
Short Detection Comparator Delay
6.5
μs
RSDT Leakage Current
±600
nA
OVP Trip Threshold
Output rising
1.19 1.228 1.266
V
OVP Hysteresis
70
mV
OVP Leakage Current
Thermal-Shutdown Threshold
Thermal-Shutdown Hysteresis
VOVP = 1.25V
Temperature rising
±200
nA
165
°C
15
°C
Note 2: All MAX16814A_ _ are 100% tested at TA = +125NC, while alll MAX16814U_ _ and MAX16814BU_ _ are 100% tested at
TA = +25°C. All limits overtemperature are guaranteed by design , not production tested.
Note 3: CS threshold includes slope compensation ramp magnitude.
Note 4: Gain = δVCOMP/δVCS, 0.05V < VCS < 0.15V.
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