MAX16800 Maxim Integrated Products, MAX16800 Datasheet

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MAX16800

Manufacturer Part Number
MAX16800
Description
Adjustable Linear High-Brightness LED (HB LED) Driver
Manufacturer
Maxim Integrated Products
Datasheet
The MAX16800 current regulator operates from a 6.5V
to 40V input voltage range and delivers up to a total of
350mA to one or more strings of high-brightness LEDs.
The output current of the MAX16800 is adjusted by
using an external current-sense resistor in series with
the LEDs. An enable input allows wide-range “pulsed”
dimming. Wave-shaping circuitry reduces EMI. The dif-
ferential current-sense input increases noise immunity.
The MAX16800 is well suited for applications requiring
high-voltage input and is able to withstand automotive
load-dump events up to 40V. An on-board pass ele-
ment minimizes external components while providing
±3.5% output current accuracy. Additional features
include a 5V regulated output and short-circuit and
thermal protection.
The MAX16800 is available in a thermally enhanced,
5mm x 5mm, 16-pin TQFN package and is specified
over the automotive -40°C to +125°C temperature range.
19-3803; Rev 1; 4/09
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.
TOP VIEW
Automotive Interior: Map, Courtesy, and Cluster
Lighting
Automotive Exterior: Tail Lights and CHMSL
Warning Lights for Emergency Vehicles
Navigation and Marine Indicators
General Illumination
Signage, Gasoline Canopies, Beacons
N.C.
N.C.
OUT
EN
13
14
15
16
________________________________________________________________ Maxim Integrated Products
High-Voltage, 350mA, Adjustable Linear
+
12
1
General Description
MAX16800
11
2
TQFN
High-Brightness LED (HB LED) Driver
Pin Configuration
10
3
Applications
9
4
8
7
6
5
N.C.
N.C.
N.C.
N.C.
♦ +6.5V to +40V Operating Range
♦ Adjustable Level (35mA to 350mA)
♦ ±3.5% Output Current Accuracy
♦ Integrated Pass Element with Low-Dropout
♦ Output Short-Circuit Protection
♦ +5V Regulated Output with 4mA Source
♦ Thermal Shutdown
♦ Differential LED Current Sense
♦ High-Voltage Enable Pin for Dimming Interface
♦ Low Shutdown Supply Current (12μA typ)
♦ Low 204mV Current-Sense Reference Reduces
♦ Wave-Shaped Soft Edges Reduce Radiated EMI
♦ Available in Small, Thermally Enhanced,
♦ -40°C to +125°C Operating Temperature Range
+ Denotes a lead(Pb)-free/RoHS-compliant package.
* EP = Exposed paddle.
/V denotes an automotive qualified part.
MAX16800ATE+
MAX16800ATE/V+
Voltage (0.5V typ)
Capability
Power Losses
During PWM Dimming
5mm x 5mm, 16-Pin TQFN Package
PWM DIMMING
0.1μF
+6.5V TO +40V
PART
IN
EN
-40°C to +125°C
-40°C to +125°C
TEMP RANGE
Ordering Information
MAX16800
GND
Simplified Diagram
OUT
CS+
CS-
www.DataSheet4U.com
V5
+5V REG
PIN-PACKAGE
16 TQFN-EP*
16 TQFN-EP*
Features
0.1μF
R
LEDs
SENSE
1

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