MAX16839ASA+ Maxim Integrated Products, MAX16839ASA+ Datasheet

IC LED DRIVER 100MA 8-SOIC

MAX16839ASA+

Manufacturer Part Number
MAX16839ASA+
Description
IC LED DRIVER 100MA 8-SOIC
Manufacturer
Maxim Integrated Products
Type
HBLED Driverr
Datasheet

Specifications of MAX16839ASA+

Constant Current
Yes
Topology
Linear, Open Drain, PWM
Number Of Outputs
1
Internal Driver
Yes
Type - Primary
Automotive
Type - Secondary
High Brightness LED (HBLED)
Voltage - Supply
5 V ~ 40 V
Mounting Type
Surface Mount
Package / Case
8-SOIC (3.9mm Width) Exposed Pad, 8-eSOIC. 8-HSOIC
Operating Temperature
-40°C ~ 125°C
Current - Output / Channel
100mA
Internal Switch(s)
No
Operating Supply Voltage
5 V to 40 V
Maximum Supply Current
15 mA to 100 mA
Maximum Operating Temperature
+ 125 C
Mounting Style
SMD/SMT
Minimum Operating Temperature
- 40 C
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Voltage - Output
-
Frequency
-
Efficiency
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
19-4746; Rev 3; 1/11
The MAX16839 programmable current regulator operates
from a 5V to 40V input voltage range and features an
open-drain, constant-current sink output capable of sink-
ing up to 100mA. The MAX16839 is well suited for auto-
motive applications and other applications that require a
general-purpose linear LED driver. The device directly
withstands automotive load dump events of up to 45V.
An onboard pass element minimizes external component
count while providing Q5% output current accuracy. The
MAX16839 includes a dimming input that controls the
duty cycle of the output current, allowing a wide LED
dimming range. In addition, the dimming input functions
as an on/off control of the output current. In multiple LED
string applications, the dimming input synchronizes the
LED current-sink turn-on, ensuring simultaneous bright-
ness in LED strings.
Additional features include thermal and open-LED pro-
tection and an open-LED fault-detection output. In
multiple LED string applications where all FLTS pins are
connected together, an open-LED detection in one LED
string turns off all the strings simultaneously. Open-LED
protection also features fault memory, to avoid LED flash-
ing during subsequent power-up cycles.
The MAX16839 is available in thermally enhanced, 6–pin
TDFN-EP and 8-pin SO-EP packages and is specified
over the -40NC to +125NC automotive temperature range.
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.
Pin Configurations appear at end of data sheet.
Automotive Exterior: Turn Signal Light, Brake
Light, Tail and Marker Lights
Automotive Interior: Cluster and Warning Lights,
Dome and Map Lights
Truck, Train, Airplane, and Emergency Car LED
Lighting
General Lighting: Signage, LED Lamps
High-Voltage, Linear High-Brightness LED
_______________________________________________________________ Maxim Integrated Products 1
General Description
Driver with Open-LED Fault Detect
Applications
S
S
S
S
S
S
S
S
S
S
S
S
S
+Denotes a lead(Pb)-free/RoHS-compliant package.
*EP = Exposed pad.
MAX16839ATT+
MAX16839ASA+
5V to 40V Operating Range
Integrated 2I Open-Drain Pass Transistor
15mA to 100mA Programmable LED Current
PWM Dimming
Open-LED Fault Detection
Open-LED Fault Event Status Memory
LED Open-Fault Detect Latches Off Multiple LED
Strings
Multichip Synchronized LED Current Sink
±5% LED Current Accuracy
-40NC to +125NC Operating Temperature Range
Thermal Protection
Undervoltage Lockout
6-Pin TDFN-EP and 8-Pin SO-EP Packages
V
PART
BAT
C
FLTS
= 0.1FF
PROTECTION DIODE
Typical Application Circuit
REVERSE
C
IN
= 0.01FF
-40NC to +125NC
-40NC to +125NC
TEMP RANGE
Ordering Information
DIM
FLTS
V
IN
MAX16839
= 5V TO 40V
GND
IN
SINK
CS
I
LED
PIN-PACKAGE
6 TDFN-EP*
8 SO-EP*
= 100mA
Features
R
CS
= 2I
LEDs

Related parts for MAX16839ASA+

MAX16839ASA+ Summary of contents

Page 1

... Operating Temperature Range S Thermal Protection S Undervoltage Lockout S 6-Pin TDFN-EP and 8-Pin SO-EP Packages S Ordering Information PART TEMP RANGE MAX16839ATT+ -40NC to +125NC MAX16839ASA+ -40NC to +125NC +Denotes a lead(Pb)-free/RoHS-compliant package. *EP = Exposed pad. Typical Application Circuit V BAT 40V IN REVERSE PROTECTION DIODE C = 0.01FF ...

Page 2

High-Voltage, Linear High-Brightness LED Driver with Open-LED Fault Detect ABSOLUTE MAXIMUM RATINGS (Voltages are specified with respect to GND.) IN, SINK .................................................................-0.3V to +45V FLTS ......................................................................-0.3V to +18V DIM ..........................................................................-0.3V to +6V CS .........................................................................-0.3V to +0.5V Continuous Current into SINK ...

Page 3

High-Voltage, Linear High-Brightness LED Driver with Open-LED Fault Detect ELECTRICAL CHARACTERISTICS (continued 12V 0V 4.07I FLTS CS otherwise noted. Typical values are at T PARAMETER SYMBOL FAULT EVENT STATUS MEMORY FLTS Activation ...

Page 4

High-Voltage, Linear High-Brightness LED Driver with Open-LED Fault Detect ( V = 12V 4.07I from CS to GND Typical values are +25NC.) A OUTPUT CURRENT vs. TEMPERATURE 17 16mA LOAD ...

Page 5

High-Voltage, Linear High-Brightness LED Driver with Open-LED Fault Detect ( V = 12V 4.07I from CS to GND Typical values are +25NC.) A LED CURRENT RISE/FALL TIMES MAX16839 toc08 V DIM 2V/div ...

Page 6

High-Voltage, Linear High-Brightness LED Driver with Open-LED Fault Detect ( V = 12V 4.07I from CS to GND Typical values are +25NC.) A FAULT INTEGRATION ON OPEN LED (100Hz, 50% DUTY CYCLE ...

Page 7

High-Voltage, Linear High-Brightness LED Driver with Open-LED Fault Detect Detailed The MAX16839 programmable current regulator oper- ates from 40V input voltage range and features an open-drain, constant current-sink output capable of sinking up to 100mA. The MAX16839 ...

Page 8

High-Voltage, Linear High-Brightness LED Driver with Open-LED Fault Detect The MAX16839 detects an open-LED event when V drops below 30mV for 25µs. When the fault condition is detected, a 2.8mA current source charges the capaci- tor between FLTS and ground, ...

Page 9

High-Voltage, Linear High-Brightness LED Driver with Open-LED Fault Detect Applications Information If a fault condition is detected, a 2.8mA current source charges C to memorize the fault condition and avoid FLTS flashing during the subsequent power-up cycles. The choice of ...

Page 10

High-Voltage, Linear High-Brightness LED Driver with Open-LED Fault Detect TOP VIEW + IN 1 DIM 2 MAX16839 FLTS 3 TDFN Chip Information PROCESS: BiCMOS DMOS 10 _____________________________________________________________________________________ 6 SINK GND EP For the latest package outline information ...

Page 11

... 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. Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 2010 Maxim Integrated Products © ...

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