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| 型号： | MAX16803EVKIT+BJT |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 7/11页 |
| 文件大小： | 0K |
| 描述： | EVAL KIT FOR MAX16803 |
| 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： | 1A |
| 输出及类型： | 1，非隔离 |
| 输出电压： | 38V |
| 特点： | 可调光，5V 额外输出 |
| 输入电压： | 6.5 ~ 40 V |
| 已供物品： | 板 |
| 已用 IC / 零件： | MAX16803 |
High-Voltage, 350mA, High-Brightness LED
Driver with PWM Dimming and 5V Regulator
Input-Voltage Considerations
For proper operation, the minimum input voltage must
always be:
V IN(MIN) ≥ V RSENSE(MAX) + V FT(MAX) + ? V DO(MAX)
where V FT(MAX) is the total forward voltage of all series
connected LEDs. The minimum operating voltage of the
device is +6.5V. The device operates below +6.5V; how-
ever, output current may not meet the full regulation
specification (see the Typical Operating Characteristics).
Paralleling Multiple MAX16803s to Drive
One High-Power LED
For applications that require more than 350mA of LED
current, two or more MAX16803s can be paralleled
(see Figure 3). V CS - should not exceed 4.1V.
R1
Low-Frequency PWM Dimming at the Output
The MAX16803 provides pulsed or chopped current
dimming input (DIM). The other method is to connect
DIM to V5 and EN to IN and pulse EN. Both methods
generate a regulated-amplitude PWM current (variable
duty cycle) that can provide control over the LED
brightness (see Figures 1 and 2).
V DIM
C1
V5
IN
EN
DIM
GND
MAX16803
OUT
V5
CS+
CS-
C2
16
OUT
15
EN
14
N.C.
13
DIM
1
OUT
GND 12
I LED
V IN
2
IN
V5 11
D1
C1
3
IN
MAX16803
CS- 10
C2
R SENSE
V5
R2
4
N.C.
N.C.
N.C.
N.C.
N.C.
CS+ 9
IN
OUT
5
6
7
8
EN
V5
C3
C4
Figure 1. Dimming with EN Connected to V IN at a Constant
Voltage and DIM Pulsed
V5
MAX16803
DIM
CS+
CS-
LEDs
1
OUT
16
OUT
15
EN
14
N.C.
13
DIM
GND 12
I LED
GND
V IN
2
IN
V5 11
D1
C1
3
IN
MAX16803
CS- 10
C2
R SENSE
Figure 3. Paralleling MAX16803s
4
N.C.
CS+ 9
N.C.
5
N.C.
6
N.C.
7
N.C.
8
Figure 2. Dimming with DIM Connected to V5, EN Connected
to V IN
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX16804ATP+ | 功能描述:LED照明驱动器 350mA HB LED Drvr w/analog & PWM Dim 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 |
| MAX16804ATP+T | 功能描述:LED照明驱动器 350mA HB LED Drvr w/analog & PWM Dim 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 |
| MAX16805ATP+ | 功能描述:LED照明驱动器 EEPROM-Prog 350mA w/Current Foldback 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 |
| MAX16805ATP+T | 功能描述:LED照明驱动器 EEPROM-Prog 350mA w/Current Foldback 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 |
| MAX16806ATP+ | 功能描述:LED照明驱动器 EEPROM-Prog 350mA w/Current Foldback 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 |
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