Datasheet > ISL78083

ISL78083

更新时间： 2024-11-26 14:57:47

品牌	Logo	应用领域
瑞萨 - RENESAS		稳压器
页数	文件大小	规格书
33页	912K
描述
包含三个同步降压稳压器和一个低压降线性稳压器的汽车摄像头电源管理 IC

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ISL78083 数据手册

Datasheet

ISL78083

Automotive Camera Power Management IC with Three Synchronous Buck Regulators

and One Low Dropout Linear Regulator

The ISL78083 is a versatile multi-rail power IC

comprised of a primary high voltage synchronous

Features

• V operating range from 4.0V to 42V

buck regulator, two secondary low voltage

synchronous buck regulators, and an LDO regulator.

It also offers four overvoltage and undervoltage

monitors, three power-good indicators, and a reset

output/fault indicator. To limit common-cause failures,

the ISL78083 also includes a second reference for the

OV/UV monitors, independent from the reference of

the regulators.

○ Start range: 4.5V to 42V

• Fixed switching frequency: 2.2MHz with optional

pseudo-random spread spectrum

• Three synchronous bucks with internal

compensation and one LDO

○ Buck1 output range: 3.3V to 5.05V

○ Buck2 output range: 1.0V to 3.3V

○ Buck3 output range: 1.0V to 3.3V

○ LDO4 output range: 2.8V to 3.4V

The ISL78083 is intended for high-density power

applications, requiring few external components and

minimal board space. It offers an extensive feature set

configured using internal One-Time Programmable

(OTP) memory. Nearly all device options, such as

each output voltage selection, power sequencing, and

OV/UV thresholds are internally configured and

require no external components for selection. The

regulators also offer internal compensation. The

bucks are synchronous to achieve high efficiency and

are capable of operating in harsh environments

requiring high ambient temperature.

• Output UV/OV thresholds, OTP: ±4%, ±6%, ±8%,

±12%

• OTP power up/down sequence and delay

• Optional output discharge on Buck2, Buck3, and

LDO4

• Current at VIN input under shutdown: <1µA typical

• Protection features

ISL78083 is available in a 4mmx4mm 24 Ld Step Cut

QFN (SCQFN) package with an exposed pad for

improved thermal performance. It is AEC-Q100

qualified to Grade 1 and operates across an ambient

temperature range of -40°C to 125°C and is

electrically specified across a junction temperature

range of -40°C to 150°C.

○ Input voltage UVLO

○ Output OV/UV

○ Positive and negative current limits on bucks

○ Overcurrent protection on internal and output

LDOs

○ Fail-safe controller

Applications

○ CRC of OTP registers

• Rear and surround view HD automotive cameras

• Driver monitoring cameras

• HD dash cam

○ OTP hiccup or latch-off fault response

Related Literature

For a full list of related documents, visit our website:

• ISL78083 device page

R33DS0007EU0100 Rev.1.00

Nov.15.19

Page 1 of 33

12 3 4 5 6 7...33

中文翻译

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