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MAX16826
Programmable, Four-String HB LED Driver with
Output-Voltage Optimization and Fault Detection
ELECTRICAL CHARACTERISTICS (continued)
(V IN = 12V, R19 = 2k Ω , C33 = 2200pF, R17 = 1.27k Ω , C DL_ = 0.01μF, T J = -40°C to +125°C, unless otherwise noted. Typical values
are at T A = +25°C.) (Note 1)
PARAMETER
Maximum Receive SCL/SDA Rise
Time
Minimum Receive SCL/SDA Rise
Time
Maximum Receive SCL/SDA Fall
Time
Minimum Receive SCL/SDA Fall
Time
Transmit SDA Fall Time
SYMBOL
t R
t R
t F
t F
t F
CONDITIONS
C B = 400pF
C B = 400pF
C B = 400pF
C B = 400pF
C B = 400pF, I O = 3mA
MIN
60
TYP
300
60
300
60
MAX
250
UNITS
ns
ns
ns
ns
ns
Pulse Width of Suppressed Spike
t SP
50
ns
INTERNAL REGULATORS (IN, V CC )
0V < I VCC < 30mA (Note 2),
V CC Output Voltage
V VCC
4.75V < V IN < 24V, DL, DL1 to DL4
4.5
5.25
5.65
V
unconnected
V CC Undervoltage Lockout
V VCC_UVLO
V CC rising
4.5
V
V CC Undervoltage Lockout
Hysteresis
IN Shunt Regulation Voltage
V VCC_HYS
I IN = 250mA
135
24.05
175
26.0
205
27.5
mV
V
PWM GATE DRIVER (DL)
Peak Source Current
Peak Sink Current
2
2
A
A
DL High-Side Driver Resistance
DL Low-Side Driver Resistance
Minimum DL Pulse Width
I DL = -100mA
I DL = +100mA
2.25
1.30
40
Ω
Ω
ns
PWM CONTROLLER, SOFT-START (FB, COMP, OVP)
FB Voltage Maximum
FB Voltage Minimum
V FB,MAX
V FB,MIN
FB shorted to COMP; MAX16826 only
FB shorted to COMP; MAX16826B only
FB shorted to COMP; MAX16826 only
FB shorted to COMP; MAX16826B only
1.230
1.23
862
735
1.250
1.25
876
750
1.260
1.27
885
765
V
mV
FB Voltage LSB
FB shorted to COMP; MAX16826 only
FB shorted to COMP; MAX16826B only
2.94
3.9
mV
FB Input Bias Current
I FB
0V < V FB < 5.5V
-100
0
+100
nA
Feedback-Voltage Line
Regulation
Level to produce V COMP = 1.25V,
4.5V < V VCC < 5.5V
±0.25
%/V
Soft-Start Current
OVP Input Bias Current
Slope Compensation
I SS
I OVP
I SLOPE
V CSS = 0.5V VCC
0V < V OVP < 5.5V
3.2
-100
19
6.0
0
26
10.4
+100
32
μA
nA
μA/μs
Maxim Integrated
3
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