MAX16815 Datasheet, PDF (1/11 Pages) Maxim Integrated Products – High-Voltage, 100mA/200mA Adjustable Linear High-Brightness LED Drivers with PWM Dimming

19-4032; Rev 1; 7/09
EVAALVUAAILTAIOBNLEKIT
High-Voltage, 100mA/200mA Adjustable Linear
High-Brightness LED Drivers with PWM Dimming
General Description
The MAX16815/MAX16828 current regulators operate
from a 6.5V to 40V input voltage range and deliver up
to 100mA (MAX16815) or 200mA (MAX16828) to high-
brightness LED (HB LED) loads. The output current is
adjusted by using an external current-sense resistor in
series with the LEDs. The MAX16815/MAX16828’s dim-
ming input allows wide-range “pulsed” PWM operation.
An on-board pass element minimizes external compo-
nents while providing ±3.5% output-current accuracy.
The MAX16815/MAX16828 are available in a thermally
enhanced, 3mm x 3mm, 6-pin TDFN package with
exposed pad and in an 8-pin SO package with
exposed pad; they are specified over the automotive -
40°C to +125°C temperature range.
Applications
Automotive Interior: Map, Courtesy,
and Cluster Lighting
Automotive Exterior: Rear Combination Lights
(RCLs)
Emergency Vehicle Warning Lights
Signage and Indicators
Ambient and Architectural Lighting
LED Bulbs
Display Backlighting
Pin Configurations appear at end of data sheet.
Typical Operating Circuit
Features
♦ 6.5V to 40V Operating Range
♦ Adjustable LED Current
MAX16815: 35mA to 100mA
MAX16828: 35mA to 200mA
♦ ±3.5% LED Current Accuracy
♦ High-Voltage DIM Input for Dimming Interface
♦ Integrated Pass Element with Low-Dropout
Voltage (0.4V typ)
♦ 5V Regulated Output with 4mA Source Capability
♦ Thermal Shutdown
♦ Output Short-Circuit Protection
♦ Available in Small, Thermally Enhanced,
3mm x 3mm, 6-Pin TDFN and 8-Pin SO with
Exposed Pad Packages
♦ -40°C to +125°C Operating Temperature Range
Ordering Information
PART
TEMP RANGE
PIN-PACKAGE
MAX16815ATT+ -40°C to +125°C
6 TDFN-EP*
MAX16815ASA+ -40°C to +125°C
8 SO-EP*
MAX16828ATT+ -40°C to +125°C
6 TDFN-EP*
MAX16828ASA+ -40°C to +125°C
8 SO-EP*
+Denotes a lead(Pb)-free/RoHS-compliant package.
*EP = Exposed pad.
Simplified Diagram
+6.5V TO +40V
IN
C1
EN
OUT
MAX16815
MAX16828
+5V REG
V5
C2
CS+
PWM DIMMING
DIM
CS-
GND
LEDs
RSENSE
6.5V TO 40V
IN
0.1μF
OUT
MAX16815
MAX16828
+5V REG
V5
0.1μF
CS+
PWM
DIMMING
CS-
DIM
GND
LEDs
RSENSE
________________________________________________________________ Maxim Integrated Products 1
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.