MAX16841 Datasheet, PDF (2/18 Pages) Maxim Integrated Products – Controller IC for Dimmable Offline LED Lamps

MAX16841
Controller IC for Dimmable Offline LED Lamps
ABSOLUTE MAXIMUM RATINGS
IN to GND...............................................................-0.3V to +26V
NDRV, DIMOUT to GND............................ -0.3V to (VIN + 0.3V)
All Other Pins to GND..............................................-0.3V to +6V
NDRV Continuous Current............................................... Q10mA
DIMOUT Continuous Current............................................. Q2mA
Continuous Power Dissipation (TA = +70NC)
8 SO (derate 7mW/NC above +70NC)...................588.2mW
Operating Temperature Range......................... -40NC to +125NC
Junction Temperature......................................................+150NC
Storage Temperature Range............................. -65NC to +150NC
Lead Temperature (soldering, 10s).................................+300NC
Soldering Temperature (reflow).......................................+260NC
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional opera-
tion of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute
maximum rating conditions for extended periods may affect device reliability.
PACKAGE THERMAL CHARACTERISTICS (Note 1)
8 SO
Junction-to-Ambient Thermal
Resistance (B_JA) (based on S8+2)............................136NC/W
Junction-to-Case Thermal
Resistance (B_JC) (based on S8+2)..............................38NC/W
Note 1: Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using a four-
layer board. For detailed information on package thermal considerations, refer to www.maxim-ic.com/thermal-tutorial.
ELECTRICAL CHARACTERISTICS
(V_IN = 12V, T_A = T_J = -40NC to +125NC, unless otherwise noted. Typical values are at T_A = +25NC.) (Note 2)
PARAMETER
IN Operating Range
IN Undervoltage Threshold
IN Overvoltage Threshold
SYMBOL
V_IN
UVLOR_IN
OVLOR_IN
CONDITIONS
V_IN rising, V_HYST = 1V
V_IN rising, V_HYST = 1.8V
NDRV not switching, V_TH = 0V
MIN TYP
11
9.5
10
21
22
0.7
1.3
IN Input Supply Current
TH
NDRV switching, 177.5kW/330pF on
I_IN
NDRV, V_TH = 5V, V_COMP = 2V,
V_CS = 0V, V_REFI = 2.35V
V_IN = 8V
1.7
2.7
1.6
TH Operating Range
0
TH Threshold Voltage
TH Input Supply Current
REFI
V_TH
V_TH rising, hysteresis = 150mV
V_TH = 0V
1.17 1.215
0.16
REFI Operating Range
V_REFI
0.5
REFI Input Supply Current
DIMOUT
DIMOUT On-Resistance
V_REFI = 2V
DIMOUT = IN
DIMOUT = GND
48.5 50
20
20
TH to DIMOUT Propagation
V_TH rising
40
Delay
V_TH falling
40
INTERNAL OSCILLATOR
RT = 47.5KI
50
Oscillator Frequency
RT = 177.5kI
160 180
RT = 297.5kI
270 300
MAX
20
10.5
23
2.6
4.2
4
1.26
0.3
3.25
51.5
40
40
80
80
200
330
UNITS
V
V
V
mA
V
V
FA
V
FA
I
ns
kHz
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