High-Voltage, 350mA, High-Brightness LED
Driver with PWM Dimming and 5V Regulator
Other Applications
The application circuit in Figure 6 implements a two-
level brightness current for TAIL/STOP lights. In TAIL
operation, Q1 is off and the R1 sets the output current.
In STOP operation, Q1 turns on and the output current
is set by a parallel combination of R1 and R2.
STOP
Figure 7 shows an application circuit with the
MAX16836 using a single BJT to provide high output
current. For proper operation:
V IN(MIN) > V CESAT(MAX) + V FT(MAX) + V SENSE
where V CESAT(MAX) is the maximum saturation voltage
of the external BJT.
TAIL
IN
OUT
V5
EN
MAX16836
V5
C2
LEDs
C1
DIM
GND
CS+
CS-
R1
Q1
R2
Figure 6. Two Brightness Level with Current Level Switch for Tail/Stop Lights
LEDs
V IN
IN
EN
OUT
V5
Q1
C2
MAX16836
PWM DIMMING
C1
DIM
GND
Figure 7. Increased LED Current (Ampere Range) with a Single BJT
CS+
CS-
R SENSE
_______________________________________________________________________________________
9
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相关代理商/技术参数
MAX16838ATP/V+ 功能描述:LED照明驱动器 Integrated 2-Channel High-Brightness LED Drivers with High-Voltage DC-DC Controller RoHS:否 制造商:STMicroelectronics 输入电压:11.5 V to 23 V 工作频率: 最大电源电流:1.7 mA 输出电流: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:SO-16N
MAX16838ATP/V+T 功能描述:LED照明驱动器 Integrated 2-Channel High-Brightness LED Drivers with High-Voltage DC-DC Controller RoHS:否 制造商:STMicroelectronics 输入电压:11.5 V to 23 V 工作频率: 最大电源电流:1.7 mA 输出电流: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:SO-16N
MAX16838ATP+ 功能描述:LED照明驱动器 HB w/High-Voltage DC/DC Controller RoHS:否 制造商:STMicroelectronics 输入电压:11.5 V to 23 V 工作频率: 最大电源电流:1.7 mA 输出电流: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:SO-16N
MAX16838ATP+T 功能描述:LED照明驱动器 HB w/High-Voltage DC/DC Controller RoHS:否 制造商:STMicroelectronics 输入电压:11.5 V to 23 V 工作频率: 最大电源电流:1.7 mA 输出电流: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:SO-16N
MAX16838ATT+ 制造商:Maxim Integrated Products 功能描述:- Rail/Tube
MAX16838AUP/V+ 功能描述:LED照明驱动器 HB w/High-Voltage DC/DC Controller RoHS:否 制造商:STMicroelectronics 输入电压:11.5 V to 23 V 工作频率: 最大电源电流:1.7 mA 输出电流: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:SO-16N
MAX16838AUP/V+T 功能描述:LED照明驱动器 HB w/High-Voltage DC/DC Controller RoHS:否 制造商:STMicroelectronics 输入电压:11.5 V to 23 V 工作频率: 最大电源电流:1.7 mA 输出电流: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:SO-16N
MAX16838AUP+ 功能描述:LED照明驱动器 HB w/High-Voltage DC/DC Controller RoHS:否 制造商:STMicroelectronics 输入电压:11.5 V to 23 V 工作频率: 最大电源电流:1.7 mA 输出电流: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:SO-16N