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| 型号： | MAX16839EVKIT+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 7/11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 |
High-Voltage, Linear High-Brightness LED
Driver with Open-LED Fault Detect
Detailed Descrip tion
The MAX16839 programmable current regulator oper-
ates from a 5V to 40V input voltage range and features
an open-drain, constant-current-sink output capable of
sinking up to 100mA. The MAX16839 directly withstands
automotive load-dump events of up to 45V.
A single resistor-programmable output current and on-
board pass element minimize the number of external
components 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 to be implemented. 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 brightness in LED strings.
Additional features include thermal protection and an
open-LED detection output that can turn off multiple LED
strings simultaneously. See Figure 1.
Open-LED Detection and
Fault Event Status Memory
The MAX16839 has an integrated open-LED detection
that reduces external components required to implement
this function. The following conditions enable the open-
LED detection feature:
U FLTS not connected to ground
U V IN > V INTH (7.38V) (typ)
U Thermal shutdown inactive
U V DIM = High
IN
5V REG
SINK
5V
I REG
DIM
30μA
REFERENCE
GENERATOR
CS
IN
15V CLAMP
1mA
ENABLE
MAX16839
1.65V
OPEN-LED
2.8mA
THERMAL
SHDN
FAULT
DETECT
FLTS
GND
Figure 1. Internal Block Diagram
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相关代理商/技术参数 |
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| MAX16839EVKIT+ | 功能描述:LED 照明开发工具 MAX16839 Eval Kit RoHS:否 制造商:Fairchild Semiconductor 产品:Evaluation Kits 用于:FL7732 核心: 电源电压:120V 系列: 封装: |
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| MAX1683EUK+ | 制造商:Maxim Integrated Products 功能描述:CHG PUMP STPUP 4V TO 11V 45MA 5PIN SOT-23 - Rail/Tube 制造商:Maxim Integrated Products 功能描述:IC,unregulated charge pump,MAX1683EUK+T |
| MAX1683EUK+T | 功能描述:电荷泵 Switched-Cap Voltage Doubler RoHS:否 制造商:Maxim Integrated 功能:Inverting, Step Up 输出电压:- 1.5 V to - 5.5 V, 3 V to 11 V 输出电流:100 mA 电源电流:1 mA 最大工作温度:+ 70 C 封装 / 箱体:SOIC-8 Narrow 封装:Tube |
| MAX1683EUK-T | 功能描述:电荷泵 Switched-Cap Voltage Doubler RoHS:否 制造商:Maxim Integrated 功能:Inverting, Step Up 输出电压:- 1.5 V to - 5.5 V, 3 V to 11 V 输出电流:100 mA 电源电流:1 mA 最大工作温度:+ 70 C 封装 / 箱体:SOIC-8 Narrow 封装:Tube |
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