Datasheet > ISL78419ARZ

ISL78419ARZ

更新时间： 2024-10-03 01:20:31

品牌	Logo	应用领域
英特矽尔 - INTERSIL		/
页数	文件大小	规格书
20页	851K
描述
Integrated Automotive TFT-LCD Power Supply Regulator

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ISL78419ARZ 数据手册

Integrated Automotive TFT-LCD Power Supply Regulator

ISL78419

Features

The ISL78419 is an integrated power management IC (PMIC) for

TFT-LCDs used in central display, rear seat entertainment and

virtual dashboards. The device integrates a boost converter for

• 2.5V to 5.5V input

• 1.5A, 0.18Ω integrated boost FET

• V /V

ON OFF

supplies generated by charge pumps driven by the

generating A

, an LDO regulator for VLOGIC. VON and VOFF are

VDD

boost switch node

generated by a charge pump driven by the switch node of the

boost converter. The ISL78419 also includes a V slice circuit,

• LDO for VLOGIC channel

reset function, and a high performance VCOM amplifier with a

Digitally Controlled Potentiometer (DCP) that is used as a VCOM

calibrator.

• 600kHz/1200kHz selectable switching frequency

• Integrated gate pulse modulator

• Reset signal generated by supply monitor

• Integrated VCOM amplifier

• DCP

The AVDD boost converter features a 1.5A/0.18Ω boost FET with

600kHz/1200kHz switching frequency.

The integrated logic LDO includes a 350mA FET for driving the low

voltage needed by external digital circuitry.

- I C serial interface, address: 0101000, MSB left

- Wiper position stored in 8-bit nonvolatile memory and

recalled on power-up

The gate pulse modulator can control the gate voltage up to 30V,

and both the rate and slew delay times are selectable.

- Endurance, 1,000 data changes per bit

The supply monitor generates a reset signal when the system is

powered down based on a user selected threshold level

(programming resistor).

• UVLO, UVP, OVP, OCP, and OTP protection

• Pb-free (RoHS compliant)

• 28 Ld 4x5 QFN

The ISL78419 provides a digitally controlled VCOM output using

I C interface. One VCOM amplifier is also integrated in the chip to

• AEC Q100 qualified

provide a fast slewing 150mA drive (sourcing or sinking). The

output of the VCOM is powered up with the voltage stored at the

last programmed 8-bit (internal) EEPROM setting.

Applications

• Automotive TFT displays

The ISL78419 is rated to operate over the temperature range

of (-40°C to +105°C) and is qualified according to AEC Q100.

- Central displays, rear seat entertainment and dashboards

Pin Configuration

ISL78419 (28 LD 4x5 QFN)

TOP VIEW

PGND

L_IN

CD2

L_OUT

RESET

ADJ

GND

THERMAL

PAD

VGH

VGHM

VFLK

VDPM

VDIV

NEG

VOUT

January 24, 2014

CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.

Intersil (and design) is a trademark owned by Intersil Corporation or one of its subsidiaries.

All other trademarks mentioned are the property of their respective owners.

FN8292.2

12 3 4 5 6 7...20

中文翻译

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ISL78419ARZ 替代型号

型号	品牌	替代类型	描述	数据表
ISL78419ARZ-T	INTERSIL	类似代替	Integrated Automotive TFT-LCD Power Supply Regulator

与ISL78419ARZ相关器件

型号	品牌	获取价格	描述	数据表
ISL78419ARZ-T	INTERSIL	获取价格	Integrated Automotive TFT-LCD Power Supply Regulator
ISL78420	INTERSIL	获取价格	100V, 2A Peak, Half-Bridge Driver with Tri-Level PWM Input and Adjustable Dead-Time
ISL78420	RENESAS	获取价格	100V, 2A Peak, Half-Bridge Driver with Tri-Level PWM Input and Adjustable Dead-Time
ISL78420ARTAZ	INTERSIL	获取价格	100V, 2A Peak, Half-Bridge Driver with Tri-Level PWM Input and Adjustable Dead-Time
ISL78420ARTBZ	INTERSIL	获取价格	100V, 2A Peak, Half-Bridge Driver with Tri-Level PWM Input and Adjustable Dead-Time
ISL78420ARTBZ-T	INTERSIL	获取价格	100V, 2A Peak, Half-Bridge Driver with Tri-Level PWM Input and Adjustable Dead-Time
ISL78420AVEZ	INTERSIL	获取价格	100V, 2A Peak, Half-Bridge Driver with Tri-Level PWM Input and Adjustable Dead-Time
ISL78424	RENESAS	获取价格	100V Boot, 4A Peak, Half-Bridge Driver with Single PWM Input and Adaptive Dead Time Contro
ISL78424AVEZ	RENESAS	获取价格	100V Boot, 4A Peak, Half-Bridge Driver with Single PWM Input and Adaptive Dead Time Contro
ISL78424AVEZ-T	RENESAS	获取价格	100V Boot, 4A Peak, Half-Bridge Driver with Single PWM Input and Adaptive Dead Time Contro

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