Electrical characteristics (continued) – Rainbow Electronics MAX16841 User Manual
Page 3
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MAX16841
Controller IC for Dimmable Offline LED Lamps
Note 2: All parameters are tested at T
A
= +25NC only. Limits over temperature are guaranteed by design.
ELECTRICAL CHARACTERISTICS (continued)
(V
IN
= 12V, T
A
= T
J
= -40NC to +125NC, unless otherwise noted. Typical values are at T
A
= +25NC.) (Note 2)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
RT Resistance Range
47.5
297.5
k
W
Oscillator Decode Resolution
6
Bits
Dither Frequency Range
45kHz to 330kHz
1.875
%
Frequency Dither Ramping DAC
7
Bits
Dither Frequency
1.5
kHz
CURRENT SENSE
CS Input Bias Current
V
CS
= 2V, V
COMP
= 4V
-1
0
+1
F
A
V
CS
= 2V, V
COMP
= 0.7V
60
90
130
CS Voltage at Current Limit
V
CS_LIMIT
2.1
2.2
2.3
V
CS Voltage at Current Limit
Soft-Start
10
ms
CS Voltage at Hiccup Current
Limit
2.6
2.7
2.8
V
CS Hiccup Shutdown
CS > hiccup
1.2
s
Hiccup Detection Cycles
3
Times
CS Regulation Voltage
V
COMP
= 2V, V
REFI
= 2.35V,
V
CS
= 0.45V
448
450
462
V
TRANSCONDUCTANCE AMPLIFIER
Transconductance
G
m
V
COMP
= 2.2V, V
REFI
= 2.35V,
V
CS
= 0.45V Q0.05V
95
135
175
F
S
COMP Sink Current
I
SINK
V
COMP
= 2V, V
REFI
= 2.35V, V
CS
= 0V
45
65
85
F
A
COMP Source Current
I
SOURCE
V
COMP
= 2V, V
REFI
= 2.35V,
V
CS
= 0.9V
45
65
85
F
A
NDRV
NDRV Operating Range
0
V
IN
V
NDRV On-Resistance
I
NDRV
= 50mA to 100mA
2
5.0
I
I
NDRV
= -50mA to -100mA
1.25
2.5
NDRV Dead Time
Rising or falling
5
Ns
NDRV Rise Time
NDRV = 1nF, 10% to 90%
15
ns
NDRV Fall Time
NDRV = 1nF, 90% to 10%
15
ns
NDRV Reference Current
Startup only
7.5
8
8.5
F
A
THERMAL SHUTDOWN
Thermal-Shutdown Threshold
T
J
rising
164
N
C
Thermal Hysteresis
20
N
C