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MAX16804 Datasheet(PDF) 3 Page - Maxim Integrated Products

Part No. MAX16804
Description  High-Voltage, 350mA LED Driver with Analog and PWM Dimming Control
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Maker  MAXIM [Maxim Integrated Products]
Homepage  http://www.maxim-ic.com
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MAX16804 Datasheet(HTML) 3 Page - Maxim Integrated Products

 
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High-Voltage, 350mA LED Driver with
Analog and PWM Dimming Control
_______________________________________________________________________________________
3
Note 1: All devices are 100% production tested at TA = +25°C. Limits over the operating temperature range are guaranteed by design.
Note 2: Resistors were added from OUT to CS+ to aid with the power dissipation during testing.
Note 3: Dropout is measured as follows:
Connect a resistor from OUT to CS+. Connect RSENSE = 0.56
Ω from CS+ to CS-. Set VIN = VOUT +3V (record VOUT as
VOUT1). Reduce VIN until VOUT = 0.97 x VOUT1 (record as VIN2 and VOUT2).
ΔVDO = VIN2 - VOUT2.
Note 4: IV5 = 0mA.
Note 5: tON time includes the delay and the rise time needed for IOUT to reach 90% of its final value. tOFF time is the time needed
for IOUT to drop below 10%. See the Typical Operating Characteristics. tON and tOFF are tested with 13
Ω from OUT to CS+.
Note 6: Thermal shutdown does not function if the output of the 5V reference is shorted to ground. Shorting V5 to GND disables the
output.
ELECTRICAL CHARACTERISTICS (continued)
(VIN = VEN = 12V, CV5 = 0.1µF, IV5 = 0, CS- = GND, RSENSE = 0.56
Ω (see the Typical Operating Circuit), VDIM = 4V, TA = TJ = -40°C
to +125°C, unless otherwise noted. Typical values are at TA = TJ = +25°C.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
THERMAL PROTECTION
Thermal-Shutdown Temperature
TJ(SHDN)
+155
°C
Thermal-Shutdown Hysteresis
23
°C
+5V REGULATOR
Output Voltage Regulation
V5
0
≤ IV5 ≤ 2mA
4.8
5.1
5.4
V
V5 Short-Circuit Current
V5 = 0V (Note 6)
12
mA
Typical Operating Characteristics
(VIN = 12V, VEN = VIN, CV5 = 0.1µF, IV5 = 0, CS- = GND, RSENSE = 0.56
Ω, connect OUT to CS+, VDIM = 4V, TA = +25°C, unless
otherwise noted.)
OUTPUT CURRENT
vs. TEMPERATURE
TEMPERATURE (
°C)
110
95
65 80
-10 5
20 35 50
-25
50
100
150
200
250
300
350
400
450
0
-40
125
ILOAD = 350mA
ILOAD = 35mA
ILOAD = 200mA
ILOAD = 100mA
(VCS+ - VCS-) vs. OUTPUT CURRENT
OUTPUT CURRENT (mA)
320
290
230 260
80 110 140 170 200
50
0.194
0.195
0.196
0.197
0.198
0.199
0.200
0.201
0.202
0.203
0.193
20
350
VIN = 12V
OUTPUT CURRENT
vs. INPUT VOLTAGE
INPUT VOLTAGE (V)
14
12
2
4
6
8
10
50
100
150
200
250
300
350
400
0
016
IOUT = 350mA
IOUT = 100mA


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