MAX16823 High-Voltage, 3-Channel Linear High

EVALUATION KIT AVAILABLE
MAX16823
High-Voltage, 3-Channel Linear High-Brightness
LED Driver with Open LED Detection
General Description
The MAX16823 three-channel LED driver operates from
a 5.5V to 40V input voltage range and delivers up to
100mA per channel to one or more strings of highbrightness LEDs (HB LEDs). Each channel’s current is
programmable using an external current-sense resistor
in series with the LEDs. Three DIM inputs allow a wide
range of independent pulsed dimming in addition to
providing the on and off control of the outputs. Waveshaping circuitry reduces EMI while providing fast turn-on
and turn-off times.
The MAX16823 is well suited for automotive
applications requiring a high-voltage input and is able to
withstand load-dump events up to 45V. On-board pass
elements minimize external components while providing
±5% LED current accuracy. Additional features include an
active-high, open-drain LEDGOOD output for open LED
detection, a +3.4V (±5%) regulated output with 4mA
output current capability, short-circuit and thermal
protections.
The MAX16823 is available in thermally enhanced 5mm x
5mm, 16-pin TQFN-EP and 16–pin TSSOP-EP packages
and is specified over the -40°C to +125°C automotive
temperature range.
Features
●● 5.5V to 40V Operating Range
●● Adjustable Constant Output Current
(5mA to 100mA and Up to 2A with External BJT)
●● ±5% Output Current Accuracy
●● Open LED Detection
●● Three Independent High-Voltage DIM Inputs
●● Three Integrated Pass Elements with Low Dropout
Voltage (0.7V max)
●● Undervoltage Lockout
●● Output Short-Circuit Protection
●● 3.4V Voltage Regulator with 4mA Capability
●● Accurate, Low 203mV Current Sense
●● Overtemperature Shutdown
●● -40°C to +125°C Operating Temperature Range
Ordering Information appears at end of data sheet.
Typical Operating Circuit
VIN
Applications
●● Automotive Exterior: Rear Combination Lights
(RCLs), CHMSL
CIN
●● Automotive Interior: RGB Ambient Lighting, Cluster
Lighting, and LCD Backlighting
IN
OUT1
IN
OUT2
IN
OUT3
DIM1
●● Emergency Vehicle Warning Lights
DIM2
●● Navigation and Marine Indicators
REG
MAX16823
DIM3
RLEDGOOD
●● Architectural and Industrial Lighting
CS1
LEDGOOD
CS2
LGC
REG
CLGC
19-0733; Rev 4; 8/15
CREG
CS3
GND
CS1
CS2
CS3
MAX16823
High-Voltage, 3-Channel Linear High-Brightness
LED Driver with Open LED Detection
Absolute Maximum Ratings
IN to GND...............................................................-0.3V to +45V
OUT1, OUT2, OUT3, DIM1, DIM2,
DIM3 to GND...........................................-0.3V to (VIN + 0.3V)
REG, LGC, LEDGOOD to GND...............................-0.3V to +6V
CS1, CS2, CS3 to GND........................................-0.3V to +0.5V
OUT1, OUT2, OUT3 Short Circuited
to GND Duration (VIN + 16V)......................................... 60min
Maximum Current into Any Pin
(except IN, OUT1, OUT2, OUT3)..................................±20mA
Continuous Power Dissipation (TA = +70°C)
16-Pin TQFN 5mm x 5mm
(derate 33.3mW/°C above +70°C)..........................2666mW
16-Pin TSSOP (derate 26.1mW/°C above +70°C).. 2088.8mW
Operating Temperature Range.......................... -40°C to +125°C
Junction Temperature.......................................................+150°C
Storage Temperature Range............................. -65°C to +150°C
Lead Temperature (soldering, 10s).................................. +300°C
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation 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.
Electrical Characteristics
(VIN = 12V, CREG = 0.1μF, IREG = 0, CLGC = 15nF, VDIM1 = VDIM2 = VDIM3 = 3.4V, RCS_ = 2.85Ω from CS_ to GND, TJ = TA = -40°C
to +125°C, unless otherwise noted. Typical values are at TA = +25°C.) (Note 1)
PARAMETER
SYMBOL
Supply Voltage Range
VIN
Undervoltage Lockout
UVLO
Ground Current
Guaranteed Output Current
IG
MIN
TYP
5.5
40
V
4.9
5.4
VIN falling
4.0
4.6
5.2
1.5
3
IOUT1 = IOUT2 = IOUT3 = 70mA
100
IOUT_ = 70mA, 6.5V ≤VIN ≤ 40V
0.3
0.7
IOUT_ = 70mA, 5.5V ≤ VIN ≤ 6.5V
0.3
0.8
VOUT_ = 0V
V
mA
mA
5
Output Current Slew Rate
Short-Circuit Current
UNITS
4.4
5mA ≤ IOUT_ ≤ 70mA
∆VDO
MAX
VIN rising
IOUT
LED Current-Sense Accuracy
Dropout Voltage (Note 2)
CONDITIONS
%
V
8
mA/µs
180
mA
LEDGOOD
LEDGOOD Output Logic Low
VOL
ISINK = 2mA
LGC Pullup Resistor
65
100
0.4
V
135
kΩ
LGC Input Upper Threshold
VUTH
2.53
V
LGC Input Lower Threshold
VLTH
0.8
V
LGC Pulldown Current
VLGC > VUTH
LGC Clock Period
CLGC = 15nF
20
0.77
1.5
mA
2.3
ms
-0.1
+0.1
µA
2.4
VIN
V
0.6
V
3
kHz
DIMMING INPUT (DIM1, DIM2, DIM3)
DIM_ Logic-Input Bias Current
DIM_ Input-Voltage High
IDIM_
DIM_ Input-Voltage Low
DIM_ Frequency
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0
Maxim Integrated │ 2
MAX16823
High-Voltage, 3-Channel Linear High-Brightness
LED Driver with Open LED Detection
Electrical Characteristics (continued)
(VIN = 12V, CREG = 0.1μF, IREG = 0, CLGC = 15nF, VDIM1 = VDIM2 = VDIM3 = 3.4V, RCS_ = 2.85Ω from CS_ to GND, TJ = TA = -40°C
to +125°C, unless otherwise noted. Typical values are at TA = +25°C.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
OUTPUTS (OUT1, OUT2, OUT3) (Note 3)
Turn-On Time
DIM_ rising edge to 90% of OUT_ current
12
28
µs
Turn-Off Time
DIM_ falling edge to 10% of OUT_ current
8
18
µs
Output Current Rise Time
10% to 90%
7
18
µs
Output Current Fall Time
90% to 10%
6
15
µs
203
213
mV
+1.2
µA
CURRENT SENSE
Regulated CS_ Voltage
VCS_
5mA ≤ IOUT_ ≤ 70mA
Input Current (CS1, CS2, CS3)
193
Current out of CS_
OVERTEMPERATURE PROTECTION (Note 4)
Thermal Shutdown Temperature
155
°C
Thermal Shutdown Hysteresis
23
°C
3.4V REGULATOR (REG)
Output Voltage
VREG
REG Short-Circuit Current
0 ≤ IREG ≤ 4mA
3.275
3.41
3.547
3.221
3.38
3.547
VREG = 0V
13
V
mA
Note 1: All devices 100% production tested at TJ = +25°C. Limits over the operating temperature range are guaranteed by design.
Note 2: Dropout is measured as follows: Connect a resistor from OUT_ to CS_. Connect RCS_ = 2.85Ω from CS_ to GND.
Set VIN = VOUT + 3V (record VOUT as VOUTA). Reduce VIN until VOUT = 0.97 x VOUTA (record as VINB and VOUTB).
VDO = VINB - VOUTB.
Note 3: Output current rise and fall times are measured with a 62Ω series resistor from OUT_ to CS_.
Note 4: Overtemperature protection does not function if the output of the 3.4V reference (REG) is shorted to ground.
Typical Operating Characteristics
(VIN = 12V, CREG = 0.1μF, IREG = 0, VLGC = unconnected, connect RCS_ = 2.85Ω from CS_ to GND. Connect OUT_ to CS_ through a
resistor, TJ = -40°C to +125°C, unless otherwise noted. Typical values are at TA = +25°C.)
60
50
40
ILOAD = 35mA
0.209
0.208
0.207
0.206
0.205
0.204
30
0.203
20
0.202
10
0
ILOAD = 5mA
-40 -25 -10 5 20 35 50 65 80 95 110 125
TEMPERATURE (°C )
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0.201
0.200
OUTPUT CURRENT vs. INPUT VOLTAGE
90
OUTPUT CURRENT (mA)
70
ILOAD = 70mA
100
MAX16823 toc02
80
VCS_ (V)
OUTPUT CURRENT (mA)
90
VCS_ vs. OUTPUT CURRENT
0.210
80
IOUT = 70mA
70
60
50
40
30
20
IOUT = 5mA
10
0
10
20
30
40
50
OUTPUT CURRENT (mA)
60
70
MAX16823 toc03
OUTPUT CURRENT vs. TEMPERATURE
MAX16823 toc01
100
0
0
5
10
15 20 25 30
INPUT VOLTAGE (V)
35
40
Maxim Integrated │ 3
MAX16823
High-Voltage, 3-Channel Linear High-Brightness
LED Driver with Open LED Detection
Typical Operating Characteristics (continued)
(VIN = 12V, CREG = 0.1μF, IREG = 0, VLGC = unconnected, connect RCS_ = 2.85Ω from CS_ to GND. Connect OUT_ to CS_ through a
resistor, TJ = -40°C to +125°C, unless otherwise noted. Typical values are at TA = +25°C.)
0.7
0.6
0.5
0.4
ILOAD = 70mA
0.3
0.2
1.0
0.9
0.8
VCS_ vs. IREG
VIN = 12V
MAX16823 toc06
ILOAD = 0
3.3
ILOAD = 4mA
ILOAD = 1mA
3.2
3.1
VIN = 5.5V
3.0
-40 -25 -10 5 20 35 50 65 80 95 110 125
TEMPERATURE (°C)
330Hz DIMMED OPERATION
VREG vs. VIN
MAX16823 toc08
MAX16823 toc09
3.44
3.43
3.42
ILOAD = 70mA
VREG vs. TEMPERATURE
3.4
-40 -25 -10 5 20 35 50 65 80 95 110 125
TEMPERATURE (°C)
3.45
MAX16823 toc07
0.210
0.209
0.208
0.207
0.206
0.205
0.204
0.203
0.202
0.201
0.200
0.199
0.198
0.197
0.196
0.195
3.5
VIN = 40V
VIN = 20V
1.1
0.6
-40 -25 -10 5 20 35 50 65 80 95 110 125
TEMPERATURE (°C)
VREG (V)
VCS_ (V)
1.2
0.7
0.1
0
VDIM1 = VDIM2 = VDIM3 = 0V
1.3
SUPPLY CURRENT (mA)
0.8
SUPPLY CURRENT vs. TEMPERATURE
MAX16823 toc05
MAX16823 toc04
0.9
DROPOUT VOLTAGE (mV)
1.4
VREG (V)
DROPOUT VOLTAGE vs. TEMPERATURE
1.0
ILOAD = 70mA
VIN = 12V, DIM
PULSED AT 33Hz VDIM
(1% DUTY CYCLE)
2V/div
IREG = 0
3.41
0V
ILED
50mA/div
3.40
3.39
IREG = 1mA
3.38
IREG = 4mA
3.37
0A
3.36
0
1
2
3
4 5 6
IREG (mA)
7
8
9
10
200Hz DIMMED OPERATION (EXPANDED)
MAX16823 toc10
VDIM
2V/div
3.35
0
5
10
15
20 25
VIN (V)
20µs/div
40
MAX16823 toc11
ILOAD = 70mA
VIN = 12V, DIM
PULSED AT 200Hz
(50% DUTY CYCLE)
LEDGOOD RESPONSE TIMES
MAX16823 toc12
VIN = 12V
CLGC = 15nF
VDIM
2V/div
VLGC
5V/div
0V
0A
10µs/div
VDIM
5V/div
0V
VLEDGOOD
5V/div
0V
0V
ILOAD
50mA/div
ILOAD = 70mA
0A
VIN = 12V, DIM
PULSED AT 200Hz
(50% DUTY CYCLE)
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35
200Hz DIMMED OPERATION (EXPANDED)
0V
ILOAD
50mA/div
10µs/div
30
2ms/div
Maxim Integrated │ 4
MAX16823
High-Voltage, 3-Channel Linear High-Brightness
LED Driver with Open LED Detection
CS3
GND
REG
TOP VIEW
CS2
Pin Configurations
12
11
10
9
OUT2 1
8
CS1 13
OUT3 14
MAX16823
OUT2 15
OUT1 16
TOP VIEW
*EP
+
LGC
7
IN
6
IN
5
IN
2
3
4
DIM1
DIM2
DIM3
LEDGOOD
TQFN
16 OUT3
OUT1 2
DIM1 3
DIM2 4
15 CS1
MAX16823
14 CS2
13 CS3
DIM3 5
12 GND
LEDGOOD 6
11 REG
IN 7
IN 8
1
+
*EP = EXPOSED PAD.
10 LGC
*EP
9 IN
TSSOP
Pin Description
PIN
NAME
FUNCTION
3
DIM1
Dimming Input 1. DIM1 is a low-frequency dimming input for channel 1. A logic-low turns off
OUT1 and a logic-high turns on OUT1.
2
4
DIM2
Dimming Input 2. DIM2 is a low-frequency dimming input for channel 2. A logic-low turns off
OUT2 and a logic-high turns on OUT2.
3
5
DIM3
Dimming Input 3. DIM3 is a low-frequency dimming input for channel 3. A logic-low turns off
OUT3 and a logic-high turns on OUT3.
4
6
LEDGOOD
Open LED Output. LEDGOOD is an open-drain output. A logic-high indicates the LED
connection is good in all three channels. A logic-low indicates an open LED connection. See
the LEDGOOD section.
5, 6, 7
7, 8, 9
IN
8
10
LGC
LED Detection-Timing Setting. Connect a capacitor from LGC to ground to set the delay
time for LEDGOOD.
TQFN
TSSOP
1
Positive Input Supply. Bypass with a 0.1µF (min) capacitor to GND. Connect all IN
pins together.
9
11
REG
3.4V Voltage Regulator. Connect a 0.1µF capacitor from REG to GND.
10
12
GND
Ground
11
13
CS3
Channel 3 Sense Amplifier Positive Input. Connect the current-sense resistor between CS3
and GND to program the output current level for channel 3.
12
14
CS2
Channel 2 Sense Amplifier Positive Input. Connect the current-sense resistor between CS2
and GND to program the output current level for channel 2.
13
15
CS1
Channel 1 Sense Amplifier Positive Input. Connect the current-sense resistor between CS1
and GND to program the output current level for channel 1.
14
16
OUT3
Current Regulator Output 3
15
1
OUT2
Current Regulator Output 2
16
2
OUT1
Current Regulator Output 1
—
—
EP
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Exposed Pad. Connect EP to a large-area ground plane for effective power dissipation. Do
not use as the IC ground connection.
Maxim Integrated │ 5
MAX16823
High-Voltage, 3-Channel Linear High-Brightness
LED Driver with Open LED Detection
Detailed Description of Hardware
The MAX16823 three-channel current regulator operates
from a 5.5V to 40V input voltage range and delivers up to
100mA per channel to one or more strings of HB LEDs.
The output currents are programmable using external
current-sense resistors in series with the LEDs. Three
DIM inputs allow a wide range of independent pulsed
dimming in addition to providing the on and off control of
the outputs. The MAX16823 offers an LED-GOOD output
that indicates an open-circuit condition when one or more
LED channels are open.
Integrated pass elements minimize external components
while providing ±5% output current accuracy. Additional
features include a 3.4V (±5%) voltage regulator with
4mA output current capability, short-circuit and thermal
protection.
The MAX16823 uses a feedback loop to linearly control
the current from each output. The voltage across each
sense resistor is compared to a fixed reference voltage
and the error is amplified to drive the internal power
pass device for a particular channel. See the Block
Diagram. The regulation point is factory-set at 203mV. The
regulated current is adjusted by the value of RCS_.
The MAX16823 is a constant-current LED driver internally
optimized for driving the impedance range expected from
one or more HB LEDs.
3.4V Regulator (REG)
The MAX16823 includes a fixed 3.4V voltage regulator
that delivers up to 4mA of load current for auxiliary applications throughout the 5.5V to 40V input voltage range.
Connect a 0.1μF compensation capacitor from REG to
ground. Shorting REG to ground disables the thermal
shutdown.
Thermal Protection
The MAX16823 enters a thermal-shutdown mode in the
event of overheating. This typically occurs in overload
or output short-circuit conditions. When the junction
temperature exceeds TJ = +155°C, the internal thermal
protection circuitry turns off the series pass elements. The
MAX16823 recovers from thermal-shutdown mode once
the junction temperature drops by 23°C. The part will
therefore protect itself by low-frequency thermal cycling in
the event of a short-circuit or overload condition.
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Applications Information
Programming the LED Current
The MAX16823 uses sense resistors to set the output
current for each channel. To set the LED current for a
particular channel, connect a sense resistor across the
corresponding current-sense input (CS_) and GND. For
optimal accuracy, connect the low-side of the currentsense resistors to the IC’s ground pin with short traces.
The value needed for the sense resistor for a given
current can be calculated with the equation below:
VCS_ (V)
R CS_ (Ω ) =
I OUT_ (A)
where VCS_ is 203mV and IOUT_ is the desired LED current (ILED).
Input-Voltage Considerations
For proper operation, the minimum input voltage must
always be:
VIN(MIN) ≥ VCS_(MAX) + VFT(MAX) + VDO(MAX)
where VFT(MAX) is the total forward voltage of all seriesconnected LEDs. The minimum operating voltage of the
device is 5.5V.
LEDGOOD
The MAX16823 features an active-low, open-drain
LEDGOOD output that goes low either when one or
more LED channels are open or when a signal at any
of the dimming inputs remains low for a period greater
than the programmed LEDGOOD delay time tDELAY.
Program tDELAY with a capacitor connected between LGC
and ground. The LEDGOOD output goes low after the
programmed delay period tDELAY has elapsed. Use the
following formula to set the delay period:
tCK = 112,000 x CLGC (F)
4 x tCK < tDELAY < 6 x tCK
where CLGC is the capacitor connected between LGC
and ground. The LEDGOOD output goes low during the
thermal shutdown. The minimum recommended value
of the capacitance that can be used on the LGC pin is
100pF.
Maxim Integrated │ 6
MAX16823
High-Voltage, 3-Channel Linear High-Brightness
LED Driver with Open LED Detection
Block Diagram
REG
UVLO
IN
IN
I_REG
IN
IN
OUT1
BANDGAP
CS1
GND
DIM1
IN
MAX16823
THERMAL
SHUTDOWN
I_REG
OUT2
DIM2
CS2
IN
I_REG
OUT3
DIM3
LEDGGOOD
LGC
CS3
LEDGOOD
DETECTOR
Pulse-Dimming Inputs (DIM_)
The MAX16823 features pulsed or chopped-current
dimming inputs (DIM_) to chop the LED current and to
adjust the brightness. DIM_ also serves as an active-high
enable input. A logic-low at DIM_ turns off OUT_ and
a logic-high turns on OUT_. If the signal at DIM stays
low more than the programmed LEDGOOD delay time,
LEDGOOD goes low (Figure 1).
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Two Brightness Levels for TAIL/STOP Lights
Figure 2 shows the PWM dimming operation for the
MAX16823 with an ICM7555 timer. The ICM7555 provides
an adjustable duty cycle using two external resistors and
a capacitor. In TAIL operation, the output of the ICM7555
feeds into DIM and lights up the LEDs. The LED’s
brightness depends on the duty cycle of the ICM7555.
When VSTOP is present, DIM is pulled up to VSTOP. The
Maxim Integrated │ 7
MAX16823
High-Voltage, 3-Channel Linear High-Brightness
LED Driver with Open LED Detection
PWM dimming operation is disabled and the LEDs light
up to full brightness. See the ICM7555 data sheet for
formulas to calculate the dimming frequency and the duty
cycle.
Outputs Latch-Off
Figure 3 shows a circuit with DIM1, DIM2, DIM3, and
LEDGOOD connected through a resistor to VREG. This
circuit is useful for applications that require all outputs to
latch off when one of the LEDs opens. The MAX16823
resumes current regulation again through power cycling,
once the fault condition is removed.
Other Applications
The application circuit in Figure 4 implements a two-level
brightness current for TAIL/STOP lights. In TAIL operation, Q1 is off and RCS1 sets the output current. In STOP
operation, Q1 turns on and the output current is set by a
parallel combination of RCS1 and R2.
Figure 5 shows an application circuit with the MAX16823
using a single BJT to provide high output current. For
proper operation:
VIN(MIN) > VBE(MAX) + VFT(MAX) + VCS_ + VDO(MAX)
For minimized dropout, the LEDs can be placed in the
collector.
tON
DIM
tOFF
LEDGOOD GOES
LOW WHEN tOFF > tDELAY
LEDGOOD
Figure 1. LEDGOOD Timing Delay
STOP
D1
TAIL
OUT3
OUT2
IN
D4
OUT1
C1
R1
REG
0.1µF
MAX16823
R2
D2
DIS
TH
TRG
CS1
IN
OUT
R3
DIM1
GND
RCS1
DIM2
D3
100kΩ
CS2
DIM3
RCS2
C2
ICM7555
LEDs
CS3
GND
RCS3
Figure 2. PWM Dimming Operation with ICM7555
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Maxim Integrated │ 8
MAX16823
High-Voltage, 3-Channel Linear High-Brightness
LED Driver with Open LED Detection
VIN
OUT3
OUT2
IN
CIN
VREG
OUT1
R1
MAX16823
DIM1
LEDs
LEDs
CS1
DIM2
LEDs
RCS1
DIM3
CS2
LEDGOOD
RCS2
REG
CS3
GND
CREG
RCS3
Figure 3. Output_ Latch-Off
STOP
D1
D2
OUT3
OUT2
IN
TAIL
TAIL
STOP/TAIL
OUT1
MAX16823
DIM1
LEDs
CS1
DIM2
R2
DIM3
CIN
TAIL
LEDs
R3
LEDs
RCS1
Q1
R1*
CS2
REG
CREG
RCS2
GND
CS3
RCS3
*R1 = 100kΩ
Figure 4. Two-Brightness Level with Current Level Switch for TAIL/STOP Lights
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Maxim Integrated │ 9
MAX16823
High-Voltage, 3-Channel Linear High-Brightness
LED Driver with Open LED Detection
Preload Current
Figure 6 shows the MAX16823 with a preload circuit. In
the circuit, the BJT, RPRELOAD, and REG generate a
preset load current. The preset load current IPRESET is
determined with the following formula:
VIN
Q1
OUT_
IN
CIN
IPRESET =
REG
C2
LEDs
MAX16823
This circuit is used with older body controllers that monitor
minimum RCL current to detect failures.
PWM DIMMING
CS_
DIM_
VREG − 0.7V
R PRELOAD
RCS_
GND
Figure 5. Increased LED Current (Amper Range) with a Single
BJT
STOP
TAIL
CIN
IN
OUT1
IN
OUT2
IN
OUT3
TAIL
TAIL
STOP
DIM1
DIM2
100kΩ
MAX16823
DIM3
CS1
100kΩ
LGC
CS2
REG
CLGC
RPRELOAD
CS3
CREG
GND
RCS1
RCS2
RCS3
Figure 6. Preload Current Setting
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Maxim Integrated │ 10
MAX16823
High-Voltage, 3-Channel Linear High-Brightness
LED Driver with Open LED Detection
Chip Information
Ordering Information
PROCESS: BiCMOS-DMOS
PART
Package Information
For the latest package outline information and land patterns
(footprints), go to www.maximintegrated.com/packages. Note
that a “+”, “#”, or “-” in the package code indicates RoHS status
only. Package drawings may show a different suffix character, but
the drawing pertains to the package regardless of RoHS status.
PACKAGE
TYPE
PACKAGE
CODE
OUTLINE
NO.
LAND
PATTERN
NO.
16 TQFN-EP
T1655+3
21-0140
90-0072
16 TSSOP
U16E+3
21-0108
90-0120
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TEMP RANGE
PIN-PACKAGE
MAX16823ATE+
-40°C to +125°C
16 TQFN-EP*
MAX16823ATE/V+
-40°C to +125°C
16 TQFN-EP*
MAX16823AUE+
-40°C to +125°C
16 TSSOP-EP*
MAX16823AUE/V+
-40°C to +125°C
16 TSSOP-EP*
+Denotes a lead(Pb)-free/RoHS-compliant package.
*EP = Exposed pad.
/V denotes an automotive qualified part.
Maxim Integrated │ 11
MAX16823
High-Voltage, 3-Channel Linear High-Brightness
LED Driver with Open LED Detection
Revision History
REVISION
NUMBER
REVISION
DATE
PAGES
CHANGED
0
1/07
Initial release
—
1
3/07
Released TQFN package
1
2
10/08
Updated General Description, Features, EC table, and Detailed Description
3
9/09
Added automotive packages
4
8/15
Updated LEDGOOD and Package Information sections
DESCRIPTION
1, 2, 6
1
6, 11
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim Integrated’s website at www.maximintegrated.com.
Maxim Integrated cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim Integrated product. No circuit patent licenses
are implied. Maxim Integrated reserves the right to change the circuitry and specifications without notice at any time. The parametric values (min and max limits)
shown in the Electrical Characteristics table are guaranteed. Other parametric values quoted in this data sheet are provided for guidance.
Maxim Integrated and the Maxim Integrated logo are trademarks of Maxim Integrated Products, Inc.
© 2015 Maxim Integrated Products, Inc. │ 12