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参数资料
| 型号： | NCP5030MTTXGEVB |
| 厂商： | ON Semiconductor |
| 文件页数： | 3/14页 |
| 文件大小： | 0K |
| 描述： | EVAL BOARD FOR NCP5030MTTXG |
| 设计资源： | NCP5030MTTXG EVB BOM NCP5030MTTXGEVB Gerber Files NCP5030MTTXG EVB Schematic |
| 标准包装： | 1 |
| 电流 - 输出 / 通道： | 900mA |
| 输出及类型： | 1，非隔离 |
| 输出电压： | 2.2 ~ 5.5 V |
| 特点： | 可调 |
| 输入电压： | 2.7 ~ 5.5 V |
| 已供物品： | 板 |
| 已用 IC / 零件： | NCP5030 |
| 其它名称： | NCP5030MTTXGEVBOS |
NCP5030
PIN FUNCTION DESCRIPTION
Pin
1
Name
FB
Type
INPUT
Description
Feedback: Reference voltage is 200 mV. The cathode of the LED and a resistor to ground to set the
LED current should be connected at this point. A " 5% metal film resistor, or better, is recommended
for best output accuracy. An analog signal can be applied to this input to dim the LED.
2
COMP
INPUT
Loop Compensation: A frequency compensation network must be connected between this pin to
the ground to ensure the stability of the closed loop. See “loop compensation” guidelines.
3
CTRL
INPUT
Control and Enable: An active High logic level on this pin enables the device. A built ? in pulldown
resistor disables the device if the input is left open. This pin can also be used to control the average
current into the load by applying a low frequency PWM signal. If a PWM signal is applied, the
frequency should be high enough to avoid optical flicker, but be no greater than 1.0 kHz.
4
5/6
PVIN
LX1
POWER
POWER
Power Voltage Input Supply: A 10 m F ceramic capacitor or larger must bypass this input to the
ground. This capacitor should be placed as close a possible to this input.
Switch LX1: Both pins are connected to the input node of the H ? bridge. The inductor should be
connected between this node and LX2. The recommended inductor size is 4.7 m H.
7
LX2
POWER
Switch LX2: This pin is connected to the opposite node of the H ? bridge and the power inductor is
connected between this node and LX1.
8
VOUT
POWER
Power Output: A filter capacitor is necessary on this pin for the stability of the loop, to smooth the
current flowing into the load, and to limit the noise created by the fast transients present in this
circuitry. A 22 m F ceramic capacitor bypass to GND or larger is recommended. For White LED
applications, this pin is also connected to the anode of the LED. Care must be observed to avoid
EMI through the PCB copper tracks connected to this pin.
9
10
VS
VIN
POWER
POWER
Voltage Sense: This pin must be connected to C OUT with a dedicated track to minimize serial
parasitic inductor and to sense V OUT with high accuracy. This pin supplies some of the NCP5030
internal blocks when the voltage is higher than V IN .
Supply Pin: This pin supplies the internal control circuitry and must be connected to PVIN.
Recommended bypass capacitor is 1.0 m F ceramic or larger.
11
AGND
POWER
Analog Ground: This pin is the system ground and carries the analog signals. This pin must be
connected to the ground plan like PGND.
12
PCA
INPUT
Peak Current Adjust: A resistor between this input and ground controls the maximum peak current
allowed in the inductor. The minimum value for this resistor is 30 k W . Increasing this value decreases
the peak current. This allows the user to adjust the current based on the application needs and scale
the size of the inductor accordingly. See “Switch Current Limit“guidelines in application section.
13
PGND
POWER
Power Ground: This pin is the power ground for NCP5030 and carries the switching current. Care
must be observed to avoid high ? density current flow in a limited PCB copper track.
http://onsemi.com
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相关代理商/技术参数 |
参数描述 |
|---|---|
| NCP5030MTTXGEVB | 制造商:ON Semiconductor 功能描述:NCP5030MTTXG EVAL BOARD ;ROHS COMPLIANT: NO |
| NCP5050 | 制造商:ONSEMI 制造商全称:ON Semiconductor 功能描述:4.5 W Flash White LED Boost Driver |
| NCP5050 AW37A WAF | 制造商:ON Semiconductor 功能描述: |
| NCP5050GEVB | 功能描述:LED 照明开发工具 NCV8925 EVAL BRD 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: |
| NCP5050MTTXG | 功能描述:LED照明驱动器 IND WHITE LED DRIVE 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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