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參數資料
| 型號： | MIC4826BMM |
| 廠商： | MICREL INC |
| 元件分類： | 顯示驅動器 |
| 英文描述： | Low Input Voltage, 160VPP Output Voltage, EL Driver |
| 中文描述： | EL DISPLAY DRIVER, PDSO8 |
| 封裝： | MSOP-8 |
| 文件頁數： | 1/12頁 |
| 文件大小： | 123K |
| 代理商： | MIC4826BMM |
August 2004
1
MIC4826
MIC4826
Micrel
MIC4826
Low Input Voltage, 160V
PP
Output Voltage, EL Driver
Final Information
General Description
Micrel’s MIC4826 is a high output voltage, DC to AC con-
verter, designed for driving EL (Electroluminescent) lamps.
The device operates from an input voltage range of 1.8V to
5.5V, making it suitable for 1-cell Li Ion and 2- or 3-cell
alkaline/NiCad/NiMH battery applications. The MIC4826 con-
verts a low voltage DC input to a 160V
PP
AC output signal that
drives the EL lamp.
The MIC4826 is comprised of two stages: a boost stage, and
an H-bridge, lamp driver, stage. The boost stage steps the
input voltage up to +80V. The H-bridge stage then alternately
switches the +80V output to each terminal of the EL lamp,
thus creating a 160V
PP
AC signal to drive the EL lamp and
generate light.
The MIC4826 features separate oscillators for the boost- and
H-bridge stages. External resistors independently set the
operating frequency of each stage. This flexibility allows the
EL lamp circuit to be optimized for maximum efficiency and
brightness.
The MIC4826 uses a single inductor and a minimum number
of external components, making it ideal for portable, space-
sensitive applications.
The MIC4826 is available in an 8-pin MSOP package with an
ambient temperature range of –40
°
C to +85
°
C.
Typical Application
Features
1.8V to 5.5V DC input voltage
160V
PP
regulated AC output waveform
Independently adjustable EL lamp frequency
Independently adjustable boost converter frequency
0.1
μ
A shutdown current
Applications
LCD panel backlight
Cellular phones
PDAs
Pagers
Calculators
Remote controls
Portable phones
Ordering Information
Part Number Temp. Range
Standard Pb-Free
MIC4826BMM MIC4826YMM –40
°
C to +85
°
C MSOP-8
Package
Micrel, Inc. 1849 Fortune Drive San Jose, CA 95131 USA tel + 1 (408) 944-0800 fax + 1 (408) 474-1000 http://www.micrel.com
High Voltage EL Driver
442k
2M
V
IN
C
0.01
μ
F/100V
D1
1N4148
L1
220
μ
H
2in
2
EL LAMP
1
5
6
8
7
2
3
4
SW
CS
VA
VB
VDD
RSW
REL
GND
MIC4826
C
IN
10
μ
F
TIME (2ms/div)
V
B
(
V
A
(
V
A
—
V
B
(
相關PDF資料 |
PDF描述 |
|---|---|
| MIC4826YMM | Low Input Voltage, 160VPP Output Voltage, EL Driver |
| MIC4827 | Low Input Voltage, 180VPP Output Voltage, EL Driver |
| MIC4827BMM | Low Input Voltage, 180VPP Output Voltage, EL Driver |
| MIC4830 | Low Noise 180Vp-p EL Driver |
| MIC4830YML | Low Noise 180Vp-p EL Driver |
相關代理商/技術參數 |
參數描述 |
|---|---|
| MIC4826BMM TR | 功能描述:IC DRIVER EL DC-AC 160VPP 8MSOP RoHS:是 類別:集成電路 (IC) >> PMIC - 照明，鎮流器控制器 系列:- 產品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:2,500 系列:- 類型:CCFL 控制器 頻率:40 ~ 80 kHz 電流 - 電源:5mA 電流 - 輸出:- 電源電壓:4.5 V ~ 5.5 V 工作溫度:-40°C ~ 85°C 封裝/外殼:16-SOIC（0.154"，3.90mm 寬） 供應商設備封裝:16-SOIC 包裝:帶卷 (TR) 其它名稱:90-3991V+V01 |
| MIC4826BMMTR | 制造商:Rochester Electronics LLC 功能描述: 制造商:RF Micro Devices Inc 功能描述: 制造商:Micrel Inc 功能描述: |
| MIC4826YMM | 功能描述:LED照明驅動器 160V EL Driver (Lead Free) 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: 安裝風格:SMD/SMT 封裝 / 箱體:SO-16N |
| MIC4826YMM TR | 功能描述:LED照明驅動器 160V EL Driver (Lead Free) 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: 安裝風格:SMD/SMT 封裝 / 箱體:SO-16N |
| MIC4826YMM | 制造商:Micrel Inc 功能描述:Driver IC |
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