Datasheet > TF4602

TF4602

更新时间： 2024-11-29 07:07:55

品牌	Logo	应用领域
其他 - ETC		调节器电子
页数	文件大小	规格书
10页	1241K
描述
1.3 MHz Asynchronous Step-up Regulator White LED Driver,是香港兴堡电子旗下的德国公司Telefunken自主研发设计的。高效率，低温度是，更适合的价格是其优势所在。这是一款升压IC，可以替代MPS的MP3202Vin=2.5--6v.Vout有28v和43v等规格。如有需求可以联系我：QQ1583518250 TELL:25880201-808

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中文翻译

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TF4602 数据手册

PRELIMINARY

TF4602

1.3 MHz Asynchronous Step-up Regulator

White LED Driver

Features

Description

 Drives white LED arrays, up to 13x3 in size, for display

backlighting

 Wide input voltage range: 2.5V to 6V

 High eﬃciency enabled by an integrated 500 mW power

MOSFET switch

 Low 104 mV internal reference voltage brings additional

power savings

 Operates at ﬁxed 1.3 MHz frequency for small ﬁlter size

 0.1 mA typical shut-down supply current

 Integrated soft-start function, 28V over-voltage protec-

tion, over-temperature protection and input under-volt-

age lockout

The TF4602 is a monolithic asynchronous boost regulator.

An integrated 500 mW Power MOSFET drives up to 13 paral-

lel strings of 3 WLEDs. It operates at ﬁxed 1.3 MHz switching

frequency, maximizing conversion eﬃciency, enabling smaller

external components and reducing output ripple. Combined

with a wide input voltage range of 2.5V to 6V the TF4602 is an

ideal solution for portable electronic devices.

The TF4602 features an integrated soft-start function that mini-

mizes inrush current during turn-on. Under-voltage lockout,

over-voltage and over-temperature protection features are

added for system robustness. It is available with an internal low

voltage references of 104 mV for high eﬃciency. The current

mode control loop is compensated internally minimizing the

number of external components.

 Industrial temperature range: -40 °C to +85 °C

 Available in space saving QFN-8 and TSOT23-6 packages

The TF4602 is oﬀered in space saving 8-pin QFN and 6-pin

TSOT23 packages. It operates over the industrial temperature

range of -40 °C to +85 °C temperature range.

Applications

Ordering Information

 Cellular Phones

 Digital Cameras

 PDAs, Smart Phones, MP3 Players, OLEDs

 Portable Instruments

PART NUMBER

V_FB

V_OV

PACKAGE

TF4602-UT_

TF4602-NB_

104 mV

28V

TSOT23-6

QFN-8

NOTE1 For 180 mm reel insert suﬃx “P”; for 330 mm reel insert suﬃx “Q”.

Typical Application

December 22, 2010

PRELIMINARY

12 3 4 5 6 7...10

中文翻译

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