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| 型号： | MAX16839EVKIT+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 1/11页 |
| 文件大小： | 0K |
| 描述： | KIT EVAL FOR MAX16839 |
| 其它有关文件： | Automotive Product Guide |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 1 |
| 电流 - 输出 / 通道： | 100mA |
| 输出及类型： | 3，非隔离 |
| 特点： | PWM 控制 |
| 输入电压： | 5 ~ 40 V |
| 已供物品： | 板 |
| 已用 IC / 零件： | MAX16839 |
EVALUA
AVAILAB
19-4746; Rev 4; 4/11
TION KIT
LE
High-Voltage, Linear High-Brightness LED
Driver with Open-LED Fault Detect
General Description
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 on-board pass element minimizes external compo-
nent count while providing Q 5% 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
protection 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-
Features
S 5V to 40V Operating Range
S Integrated 2 I Open-Drain Pass Transistor
S 15mA to 100mA Programmable LED Current
S PWM Dimming
S Open-LED Fault Detection
S Open-LED Fault Event Status Memory
S LED Open-Fault Detect Latches Off Multiple LED
Strings
S Multichip Synchronized LED Current Sink
S ±5% LED Current Accuracy
S -40 N C to +125 N C Operating Temperature Range
S Thermal Protection
S Undervoltage Lockout
S 6-Pin TDFN-EP and 8-Pin SO-EP Packages
Ordering Information
PART TEMP RANGE PIN-PACKAGE
MAX16839ATT+ -40 N C to +125 N C 6 TDFN-EP*
MAX16839ASA+ -40 N C to +125 N C 8 SO-EP*
ing during subsequent power-up cycles.
MAX16839ATT/V+
-40 N C to +125 N C
6 TDFN-EP*
The MAX16839 is available in thermally enhanced, 6–pin
TDFN-EP and 8-pin SO-EP packages and is specified
over the -40 N C to +125 N C automotive temperature range.
Applications
+ Denotes a lead(Pb)-free/RoHS-compliant package.
* EP = Exposed pad.
/V denotes an automotive qualified part.
Typical Application Circuit
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
V BAT
REVERSE
PROTECTION DIODE
V IN = 5V TO 40V
General Lighting: Signage, LED Lamps
C IN = 0.01 F F
I LED = 100mA
LEDs
IN
Pin Configurations appear at end of data sheet.
DIM
FLTS
MAX16839
SINK
CS
C FLTS = 0.1 F F
GND
R CS = 2 I
_______________________________________________________________ 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.
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