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MAX16814
Integrated, 4-Channel, High-Brightness LED
Driver with High-Voltage DC-DC Controller
ELECTRICAL CHARACTERISTICS (continued)
(V IN = V EN = 12V, R RT = 12.25k I , R SETI = 15k I , C VCC = 1 F F, V CC = V DRV , NDRV = COMP = OUT_ = unconnected, V RSDT = V DIM
= V CC , V OVP = V CS = V LEDGND = V PGND = V SGND = 0V, T A = T J = -40 N C to +125 N C for MAX16814A_ _, T A = -40 N C to +85 N C for
MAX16814BE_ _, and T A = T J = 0 N C to +85 N C for MAX16814U_ _ and MAX16814BU_ _, unless otherwise noted. Typical values are at
T A = +25 N C.) (Note 2)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
I OUT_ =
100mA
T A = +125 ° C, MAX16814A_ _
only
T A = -40 ° C to +125 ° C,
MAX16814A_ _ only
±3
±5
Output Current Accuracy
I OUT_ =
50mA to
150mA
T A = +25 ° C, MAX16814U_ _ and
MAX16814B_ _ _
T A = 0 ° C to +85 ° C, MAX16814U_
_ and MAX16814BU _ _
T A = -40 ° C to +85 ° C for
MAX16814BE _ _
± 2.75
± 4
± 4
%
OUT_ Leakage Current
V DIM = 0V, V OUT_ = 40V
1
μA
LOGIC INPUTS/OUTPUTS
V EN rising, MAX16814A_ _ only
1.125
1.23
1.335
EN Reference Voltage
V EN rising, MAX16814U_ _ and
MAX16814B_ _ _
1.144
1.23
1.316
V
EN Hysteresis
50
mV
EN Input Current
DIM Input High Voltage
DIM Input Low Voltage
DIM Hysteresis
DIM Input Current
DIM to LED Turn-On Delay
DIM to LED Turn-Off Delay
I OUT_ Rise and Fall Times
FLT Output Low Voltage
FLT Output Leakage Current
V EN = 40V
DIM rising edge to 10% rise in I OUT_
DIM falling edge to 10% fall in I OUT _
V IN = 4.75V and I SINK = 5mA
V FLT = 5.5V
2.1
250
100
100
200
±600
0.8
±2
0.4
1.0
nA
V
V
mV
μA
ns
ns
ns
V
μA
LED Short Detection Threshold
Gain = 3V
1.75
2.0
2.25
V
Short Detection Comparator Delay
RSDT Leakage Current
6.5
±600
μs
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
V OVP = 1.25V
Temperature rising
165
15
±200
nA
° C
° C
Note 2: All MAX16814A_ _ are 100% tested at T A = +125 N C, while all MAX16814U_ _ and MAX16814B _ _ _ are 100% tested at
T A = +25°C. All limits overtemperature are guaranteed by design , not production tested.
Note 3: CS threshold includes slope compensation ramp magnitude.
Note 4: Gain = δV COMP /δV CS , 0.05V < V CS < 0.15V.
4
Maxim Integrated
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