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

A8430EEK-T Datasheet

  • A8430EEK-T

  • White LED Driver Constant Current Step-up Converter

  • 10頁

  • ALLEGRO   ALLEGRO

掃碼查看芯片數(shù)據(jù)手冊

上傳產(chǎn)品規(guī)格書

PDF預覽

A8430
White LED Driver Constant Current Step-up Converter
The A8430 is a noninverting boost converter that steps-up the input
voltage, to provide a programmable constant current output at up to
36 V for driving white LEDs in series. Driving LEDs in series ensures
identical currents and uniform brightness. Up to four white LEDs can
be driven at 20 mA from a single cell Li-ion or a multicell NiMH power
source. Up to seven white LEDs can be driven by increasing the supply
voltage up to 10 V.
The A8430 incorporates a power switch and feedback sense amplifier
to provide a solution with minimum external components. The output
current can be set by adjusting a single external sense resistor and can
be varied with a voltage or filtered PWM signal when dimming control
is required. The high switching frequency of 1.2 MHz allows the use of
small inductor and capacitor values.
The A8430 is provided in a 5-pin 3 mm x 3 mm MLP package (part
number suffix
EK),
that has a nominal height of only 0.75 mm. The
lead-free version (part number suffix
EK-T)
has 100% lead-free matte
tin leadframe plating.
Data Sheet
26185.300C
A8430 MLPD
Approximate actual size
SW
GND
FB
1
2
3
5
VIN
4
EN
Same pad footprint as SOT-23-5
R
胃JA
= 50 擄C/W, see note 1, page 2
FEATURES
Output voltage up to 36 V
2.5 V to 10 V input
Drives up to 4 LEDs at 20 mA from a 2.5 V supply
Drives up to 5 LEDs at 20 mA from a 3 V supply
1.2 MHz switching frequency
300 mA switch current limit
1 碌A shutdown current
ABSOLUTE MAXIMUM RATINGS
SW Pin ................................................鈥?.3
V to 36 V
Remaining Pins ..................................
鈥?.3 V to 10 V
Ambient Operating Temperature, T
A
.......
鈥?0擄C to 85擄C
Junction Temperature, T
J(max)
...............................
150擄C
Storage Temperature, T
S
....................
鈥?5擄C to 150擄C
APPLICATIONS
LED backlights
Portable battery-powered equipment
Cellular phones
PDAs (Personal Digital Assistant)
Camcorders, personal stereos, MP3 players, cameras
Mobile GPS systems
Use the following complete part number when ordering:
Part Number
A8430EEK
A8430EEK-T
Package
5-pin, MLPD
5-pin, MLPD
Description
Surface Mount
Lead-Free, Surface Mount

A8430EEK-T相關型號PDF文件下載

您可能感興趣的PDF文件資料

熱門IC型號推薦

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：
賣家服務：
技術客服：

0571-85317607

網(wǎng)站技術支持

13606545031

客服在線時間周一至周五
9:00-17:30

關注官方微信號，
第一時間獲取資訊。

建議反饋
返回頂部

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的動力！意見一經(jīng)采納，將有感恩紅包奉上哦！