音影先锋亚洲天堂网|电影世界尽头的爱完整版播放|国产 熟女 91|高清无码免费观看欧美日韩|韩国一区二区三区黄色录像|美女亚洲加勒比在线|亚洲综合网 开心五月|7x成人在线入口|成人网站免费日韩毛片区|国产黄片?一级?二级?三级

AAT2845IML-QI-T1 Datasheet

  • AAT2845IML-QI-T1

  • Four-Channel Backlight Driver with Dual LDOs

  • 19頁

  • ANALOGICTECH

掃碼查看芯片數(shù)據(jù)手冊

上傳產(chǎn)品規(guī)格書

PDF預(yù)覽

PRODUCT DATASHEET
AAT2845
ChargePump
TM
General Description
The AAT2845 is a highly integrated power solution for
single-cell lithium-ion-based LCD display applications. It
includes a four-channel LED backlight driver and two
integrated 200mA LDOs as additional power supplies for
display and camera-related chipsets.
The backlight driver is a low noise, constant frequency
charge pump DC/DC converter that uses a tri-mode load
switch (1X), fractional (1.5X), and doubling (2X) conver-
sion to maximize efficiency. Each of the four channels is
capable of driving up to 20mA per channel.
AnalogicTech鈥檚 S
2
Cwire鈩?(Simple Serial Control鈩? serial
digital input is used to enable, disable, and set current
for each LED with 16 available settings down to 50碌A(chǔ).
The low current mode supply current can be as low as
50碌A(chǔ) to save power and maintain high efficiency.
Each LED output is equipped with built-in protection for
short-circuit and auto-disable functions. Built-in soft-
start circuitry prevents excessive inrush current during
start-up. A low current shutdown feature disconnects the
load from the input and reduces quiescent current to less
than 1碌A(chǔ).
The AAT2845 is available in a Pb-free, thermally-
enhanced 20-pin 3x4mm TQFN package.
Four-Channel Backlight Driver with Dual LDOs
Features
鈥?Input Voltage Range: 2.7V to 5.5V
鈥?Four-Channel LED Driver:
鈻?/div>
Tri-Mode Charge Pump
鈻?/div>
Up to 20mA/Channel
鈻?/div>
Easy Control with Single Wire Interface
鈻?/div>
16 Current Levels
鈻?/div>
Four Low Current Settings Down to 50碌A(chǔ)
鈻?/div>
Low I
Q
(50碌A(chǔ)) for Low Current Mode
鈻?/div>
>90% Peak Efficiency
鈥?Dual, 200mA LDOs
鈻?/div>
User-Programmable Outputs: AAT2845-EE
鈻?/div>
Fixed Output Voltages
鈥?AAT2845-QG: 2.8V and 1.5V
鈥?AAT2845-QI: 2.8V and 1.8V
鈥?Automatic Soft-Start
鈥?Over-Temperature Protection
鈥?Available in 3x4mm TQFN34-20 Package
鈥?-40擄C to +85擄C Temperature Range
Applications
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
Camera Function Power Supplies
Camera Phone Displays
LCD Modules
White LED Backlighting
Typical Application
CF1
1碌F
C1-
CF2
1碌F
C2+
CF1
1碌F
C1-
CF2
1碌F
C2+
C1+ C2-
C1+ C2-
OUT
IN
V
BAT
3.6V
OUT
C
OUT
1碌F
AAT2845-EE
C
IN
2.2碌F
WLEDs
OSRAM LW M673
or equivalent
IN
V
BAT
3.6V
AAT2845-QI
C
IN
2.2碌F
C
OUT
1碌F
WLEDs
OSRAM LW M673
or equivalent
D1
D2
D3
D4
IN
LDOA
200mA
C
OUTA
2.2碌F
D1
D2
D3
D4
IN
LDOA
C
OUTA
2.2碌F
V
OUTA
2.8V, 200mA
FBA
S
2
Cwire
Backlight Control
LDO Enable
C
BYP
0.1碌F
EN/SET
LDOB
ENLDO
CBP
FBB
GND/PGND
200mA
C
OUTB
2.2碌F
S
2
Cwire
Backlight Control
LDO Enable
C
BYP
0.1碌F
EN/SET
LDOB
ENLDO
CBP
GND/PGND
C
OUTB
2.2碌F
V
OUTB
1.8V, 200mA
2845.2008.05.1.2
www.analogictech.com
1

AAT2845IML-QI-T1相關(guān)型號PDF文件下載

  • 型號
    版本
    描述
    廠商
    下載
  • 英文版
    500mA Low Noise Step-Down Converter
    ANALOGICTECH
  • 英文版
    500mA Low Noise Step-Down Converter
    ANALOGICTECH&nb...
  • 英文版
    Low Noise, Fast Transient 600mA Step-Down Converter
    ANALOGICTECH
  • 英文版
    Low Noise, Fast Transient 600mA Step-Down Converter
    ANALOGICTECH&nb...
  • 英文版
    2.5A Low Noise Step-Down Converter
    ANALOGICTECH
  • 英文版
    1.5A Low Noise Step-Down Converter
    ANALOGICTECH
  • 英文版
    1.5A Low Noise Step-Down Converter
    ANALOGICTECH&nb...
  • 英文版
    1MHz Step-Down Converter/LDO Regulator
    ANALOGICTECH
  • 英文版
    1MHz Step-Down Converter/LDO Regulator
    ANALOGIC
  • 英文版
    Adjustable 3-Channel Regulator
    ANALOGICTECH
  • 英文版
    Adjustable 3-Channel Regulator
    ANALOGICTECH&nb...
  • 英文版
    Adjustable 3-Channel Regulator
    ANALOGICTECH
  • 英文版
    Adjustable 3-Channel Regulator
    ANALOGICTECH&nb...
  • 英文版
    Dual Channel, Step-Down Converter/Linear Regulator
    ANALOGICTECH
  • 英文版
    Dual Channel, Step-Down Converter/Linear Regulator
    ANALOGICTECH&nb...
  • 英文版
    1MHz Step-Down Converter/LDO Regulator
    ANALOGICTECH
  • 英文版
    1MHz Step-Down Converter/LDO Regulator
    ANALOGIC
  • 英文版
    Dual 400mA, 1MHz Step-Down DC-DC Converter
    ANALOGICTECH
  • 英文版
    Dual 400mA, 1MHz Step-Down DC-DC Converter
    ANALOGICTECH&nb...
  • 英文版
    Dual 600mA, 1MHz Step-Down DC/DC Converter
    ANALOGICTECH

掃碼下載APP，
一鍵連接廣大的電子世界。

在線人工客服

買家服務(wù)：
賣家服務(wù)：
技術(shù)客服：

0571-85317607

網(wǎng)站技術(shù)支持

13606545031

客服在線時間周一至周五
9:00-17:30

關(guān)注官方微信號，
第一時間獲取資訊。

建議反饋

聯(lián)系人：

聯(lián)系方式：

按住滑塊，拖拽到最右邊
>>
感謝您向阿庫提出的寶貴意見，您的參與是維庫提升服務(wù)的動力！意見一經(jīng)采納，將有感恩紅包奉上哦！