Rainbow Electronics MAX16841 - 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