MAX16823ATE+ Maxim Integrated Products, MAX16823ATE+ Datasheet

IC LED DRIVR HIGH BRIGHT 16-TQFN

MAX16823ATE+

Manufacturer Part Number
MAX16823ATE+
Description
IC LED DRIVR HIGH BRIGHT 16-TQFN
Manufacturer
Maxim Integrated Products
Type
HBLED Driverr
Datasheet

Specifications of MAX16823ATE+

Constant Current
Yes
Topology
Linear (LDO), Open Drain, PWM
Number Of Outputs
3
Internal Driver
Yes
Type - Primary
Automotive
Type - Secondary
High Brightness LED (HBLED), RGB
Voltage - Supply
5.5 V ~ 40 V
Voltage - Output
3.41V
Mounting Type
Surface Mount
Package / Case
16-TQFN Exposed Pad
Operating Temperature
-40°C ~ 125°C
Current - Output / Channel
100mA
Internal Switch(s)
Yes
Operating Supply Voltage
5.5 V to 40 V
Maximum Power Dissipation
2666 mW
Maximum Operating Temperature
+ 125 C
Mounting Style
SMD/SMT
Minimum Operating Temperature
- 40 C
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Frequency
-
Efficiency
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
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 high-brightness
LEDs (HBLEDs). 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 indepen-
dent pulsed dimming in addition to providing the on and
off control of the outputs. Wave-shaping 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 detec-
tion, 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.
19-0733; Rev 3; 9/09
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
High-Voltage, 3-Channel Linear High-Brightness
Automotive Exterior: Rear Combination Lights
Automotive Interior: RGB Ambient Lighting,
Emergency Vehicle Warning Lights
Navigation and Marine Indicators
Architectural and Industrial Lighting
(RCLs), CHMSL
Cluster Lighting, and LCD Backlighting
________________________________________________________________ Maxim Integrated Products
General Description
LED Driver with Open LED Detection
C
LGC
V
REG
Applications
IN
C
IN
R
C
LEDGOOD
REG
IN
IN
IN
DIM1
DIM2
DIM3
LEDGOOD
LGC
REG
MAX16823
GND
OUT1
OUT2
OUT3
CS1
CS2
CS3
o 5.5V to 40V Operating Range
o Adjustable Constant Output Current
o ±5% Output Current Accuracy
o Open LED Detection
o Three Independent High-Voltage DIM Inputs
o Three Integrated Pass Elements with Low
o Undervoltage Lockout
o Output Short-Circuit Protection
o 3.4V Voltage Regulator with 4mA Capability
o Accurate, Low 203mV Current Sense
o Overtemperature Shutdown
o -40°C to +125°C Operating Temperature Range
+ Denotes a lead(Pb)-free/RoHS-compliant package.
* EP = Exposed pad.
/V Denotes an automotive qualified part.
Pin Configurations appear at end of data sheet.
MAX16823ATE+
MAX16823ATE/V+
MAX16823AUE+
MAX16823AUE/V+
(5mA to 100mA and Up to 2A with External BJT)
Dropout Voltage (0.7V max)
CS1
PART
CS2
Typical Operating Circuit
CS3
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
Ordering Information
TEMP RANGE
PIN-PACKAGE
16 TQFN-EP*
16 TQFN-EP*
16 TSSOP-EP*
16 TSSOP-EP*
Features
1

Related parts for MAX16823ATE+

MAX16823ATE+ Summary of contents

Page 1

... Output Short-Circuit Protection o 3.4V Voltage Regulator with 4mA Capability o Accurate, Low 203mV Current Sense o Overtemperature Shutdown o -40°C to +125°C Operating Temperature Range PART Applications MAX16823ATE+ MAX16823ATE/V+ MAX16823AUE+ MAX16823AUE/V+ + Denotes a lead(Pb)-free/RoHS-compliant package Exposed pad. /V Denotes an automotive qualified part. Pin Configurations appear at end of data sheet. ...

Page 2

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. REG, LGC, LEDGOOD to GND ................................-0.3V to +6V CS1, CS2, ...

Page 3

High-Voltage, 3-Channel Linear High-Brightness LED Driver with Open LED Detection ELECTRICAL CHARACTERISTICS (continued 12V 0.1µ REG REG LGC to +125°C, unless otherwise noted. Typical values are at T PARAMETER SYMBOL CURRENT ...

Page 4

High-Voltage, 3-Channel Linear High-Brightness LED Driver with Open LED Detection (V = 12V 0.1µ REG REG LGC a resistor -40°C to +125°C, unless otherwise noted. Typical values are ...

Page 5

High-Voltage, 3-Channel Linear High-Brightness LED Driver with Open LED Detection PIN NAME TQFN TSSOP Inp uency ...

Page 6

High-Voltage, 3-Channel Linear High-Brightness LED Driver with Open LED Detection Detailed Description 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 HBLEDs. ...

Page 7

High-Voltage, 3-Channel Linear High-Brightness LED Driver with Open LED Detection IN IN BANDGAP IN GND DIM1 MAX16823 DIM2 DIM3 LEDGGOOD LEDGOOD DETECTOR LGC Pulse-Dimming Inputs (DIM_) The MAX16823 features pulsed or chopped-current dimming inputs (DIM_) to chop the LED current ...

Page 8

High-Voltage, 3-Channel Linear High-Brightness LED Driver with Open LED Detection ICM7555. When V is present, DIM is pulled up to STOP V . The PWM dimming operation is disabled and STOP the LEDs light up to full brightness. See the ...

Page 9

High-Voltage, 3-Channel Linear High-Brightness LED Driver with Open LED Detection REG R1 C REG Figure 3. Output_ Latch-Off STOP D1 D2 TAIL C IN R1* C REG *R1 = 100kΩ Figure 4. Two-Brightness Level with ...

Page 10

High-Voltage, 3-Channel Linear High-Brightness LED Driver with Open LED Detection V IN OUT_ REG MAX16823 PWM DIMMING DIM_ CS_ GND Figure 5. Increased LED Current (Amper Range) with a Single BJT STOP TAIL 100kΩ 100kΩ R PRELOAD ...

Page 11

High-Voltage, 3-Channel Linear High-Brightness LED Driver with Open LED Detection TOP VIEW CS1 13 14 OUT3 MAX16823 OUT2 15 *EP 16 OUT1 + TQFN Chip Information PROCESS: BiCMOS-DMOS ______________________________________________________________________________________ TOP VIEW 9 LGC 8 ...

Page 12

... Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. 12 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © 2009 Maxim Integrated Products DESCRIPTION Maxim is a registered trademark of Maxim Integrated Products, Inc ...

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