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參數(shù)資料
| 型號： | AT9933DB1 |
| 廠商： | Supertex, Inc. |
| 元件分類： | LED驅(qū)動器 |
| 英文描述： | High Bright LED Driver IC Meeting Automotive Requirements |
| 中文描述： | 高亮度LED驅(qū)動IC滿足汽車需求 |
| 文件頁數(shù)： | 6/11頁 |
| 文件大小： | 1272K |
| 代理商： | AT9933DB1 |
6
AT9933DB1
Fig. 9. PWM Dimming rise and fall times
Channel 1 (blue): PWM Dimming Input Signal (2V/div)
Channel 4 (Green): LED current (100mA/div)
(a): rise time
(b): fall time
Conducted EMI Tests on the AT9933DB1
In preliminary tests conducted on the demo board, the board
meets SAE J1113 Class 3 conducted EMI standards without
the need for any input filters (other than the input capacitors
already included). This is a result of the combination of the
continuous input current and a localized switching loop (Q1
– C1 – D3).
Table 1 details the conducted EMI limit as per SAE J1113
and the maximum conducted EMI obtained from measure-
ments on the board. The table also lists the Class of the SAE
standard the board meets in each frequency range.
The conducted EMI plots for the HV9930DB1 obtained at
an input voltage of 13.5V and an LED string voltage of 27V
(output current is 350mA) are given in the Appendix.
Frequency Range
Conducted EMI Limit for
Class 3
Conducted EMI by
AT9933DB1
Class as per SAE J1113
150kHz - 300kHz
70 dBμV (narrowband)
40 dBμV
Class 5
530kHz - 2.0MHz
50 dBμV (narrowband)
48 dBμV
Class 3
5.9MHz - 6.2MHz
45 dbμV (narrowband)
29 dBμV
Class 5
30MHz - 54MHz
65 dbμV (broadband)
54 dBμV
Class 4
70MHz - 108MHz
49 dbμV (broadband)
47 dBμV
Class 3
Table 1. Conducted EMI Measurements
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參數(shù)描述 |
|---|---|
| AT9933LG | 制造商:Supertex Inc 功能描述: |
| AT9933LG-G | 功能描述:LED照明驅(qū)動器 HYSTERIC BOOST BUCK LED DRIVER IC RoHS:否 制造商:STMicroelectronics 輸入電壓:11.5 V to 23 V 工作頻率: 最大電源電流:1.7 mA 輸出電流: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SO-16N |
| AT9946 | 功能描述:開關(guān)配件 Accessory BatteryBox RoHS:否 制造商:C&K Components 類型:Cap 用于:Pushbutton Switches 設(shè)計(jì)目的: |
| AT-9946-091B | 制造商:Nihon Dempa Kogyo Co (NDK) 功能描述:Push button switch |
| AT9946-091B | 功能描述:SMARTSWITCH EVAL KIT OLED PB RoHS:是 類別:編程器，開發(fā)系統(tǒng) >> 評估演示板和套件 系列:SmartSwitch™ 標(biāo)準(zhǔn)包裝:1 系列:PCI Express® (PCIe) 主要目的:接口，收發(fā)器，PCI Express 嵌入式:- 已用 IC / 零件:DS80PCI800 主要屬性:- 次要屬性:- 已供物品:板 |
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