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参数资料
| 型号： | MAX16818EVKIT+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 7/25页 |
| 文件大小： | 0K |
| 描述： | KIT EVALUATION FOR MAX16818 |
| 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： | 18V |
| 特点： | 可调光 |
| 输入电压： | 6 ~ 28 V |
| 已供物品： | 板 |
| 已用 IC / 零件： | MAX16818 |
1.5MHz, 30A High-Efficiency, LED Driver
with Rapid LED Current Pulsing
Pin Description
PIN
1
2, 7
3
4
5
6
8, 22, 25
9
10
11
12
13
14
15
16
17
18
19
20
NAME
PGND
N.C.
DL
BST
LX
DH
SGND
CLKOUT
PGOOD
EN
RT/SYNC
V_IOUT
LIM
OVI
CLP
EAOUT
EAN
DIFF
CSN
FUNCTION
Power-Supply Ground
No Connection. Not internally connected.
Low-Side Gate Driver Output
Boost Flying Capacitor Connection. Reservoir capacitor connection for the high-side MOSFET driver
supply. Connect a ceramic capacitor between BST and LX.
Source connection for the high-side MOSFET.
High-Side Gate Driver Output. Drives the gate of the high-side MOSFET.
Signal Ground. Ground connection for the internal control circuitry. Connect SGND and PGND
together at one point near the IC.
Oscillator Output. Rising edge of CLKOUT is phase-shifted from the rising edge of DH by 180°.
Power-Good Output
Output Enable. Drive high or leave unconnected for normal operation. Drive low to shut down the
power drivers. EN has an internal 15μA pullup current. Connect a capacitor from EN to SGND to
program the hiccup-mode duty cycle.
Switching Frequency Programming and Chip-Enable Input. Connect a resistor from RT/SYNC to
SGND to set the internal oscillator frequency. Drive RT/SYNC to synchronize the switching frequency
with external clock.
Voltage Source Output Proportional to the Inductor Current. The voltage at V_IOUT = 135 x I LED x R S .
Current-Limit Setting Input. Connect a resistor from LIM to SGND to set the hiccup current-limit
threshold. Connect a capacitor from LIM to SGND to ignore short output overcurrent pulses.
Overvoltage Protection. Connect OVI to DIFF. When OVI exceeds 12.7% above the programmed
output voltage, DH is latched low and DL is latched high. Toggle EN or recycle the input power to
reset the latch.
Current-Error Amplifier Output. Compensate the current loop by connecting an RC network to ground.
Voltage-Error Amplifier Output. Connect to the external compensation network.
Voltage-Error Amplifier Inverting Input
Differential Remote-Sense Amplifier Output. DIFF is the output of a precision unity-gain amplifier
whose inputs are SENSE+ and SENSE-.
Current-Sense Differential Amplifier Negative Input. The differential voltage between CSN and CSP is
amplified internally by the current-sense amplifier (gain = 34.5) to measure the inductor current.
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相关PDF资料 |
PDF描述 |
|---|---|
| MAX16820EVKIT+ | EVAL KIT FOR MAX16820 |
| MAX16821BEVKIT+ | KIT EVAL FOR MAX16821B |
| MAX16822BEVKIT+ | KIT EVAL FOR MAX16822 |
| MAX16823EVKIT+ | EVAL KIT FOR MAX16823 |
| MAX16824EVKIT+ | KIT EVAL FOR MAX16824 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX16818EVKIT+ | 功能描述:LED 照明开发工具 MAX16818 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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| MAX16819ATT+T | 功能描述:LED照明驱动器 2MHz HB w/HSide Crnt Sense & 5000:1 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 |
| MAX1681C/D | 功能描述:直流/直流开关转换器 125mA High-Speed Switched-Capacitor Voltage Converters RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT |
| MAX1681ESA | 功能描述:直流/直流开关转换器 125mA f-Select Swtcd Voltage Converter RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT |
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