Datasheet > PCA9450B

PCA9450B

更新时间： 2024-02-15 13:43:04

品牌	Logo	应用领域
恩智浦 - NXP		/
页数	文件大小	规格书
96页	1327K
描述
Power management IC for i.MX 8M application processor family

阅读下载

中文翻译

获取价格

数据手册

如果您发现信息不准确，欢迎纠错

PCA9450B 数据手册

PCA9450

Power management IC for i.MX 8M application processor

family

Rev. 1.0 — 19 November 2019

Product data sheet

1 General description

The PCA9450 is a single chip Power Management IC (PMIC) specifically designed to

support i.MX 8M family processor in both 1 cell Li-Ion and Li-polymer battery portable

application and 5 V adapter non-portable applications. It supports various memory types

(DDR4/LPDDR4/DDR3L, etc.) via system UBOOT configuration, which does not require

hardware change.

The device provides six high efficiency step-down regulators, five LDOs, one 400 mA

load switch, 2-channel level translator and 32.768 kHz crystal oscillator driver.

Three buck regulators support Dynamic Voltage Scaling (DVS) feature along with

programmable ramping up and down time and those buck regulators support remote

sense to compensate IR drop to load from buck regulator. This device is characterized

across -40 °C to 105 °C ambient temperature range.

Six step-down regulators are designed to provide power for i.MX 8M application

processor and DRAM memory. Two LDOs, LDO1 and LDO2, feature very low quiescent

current to provide power for Secure Non-Volatile Storage (SNVS) since these LDOs are

always ON when input voltage is valid.

PCA9450 integrates logic translator which is a 2-bit, dual supply translating transceiver

with auto direction sensing. It enables bidirectional voltage level translation. It can be

used as I²C level translator. 400 mA load switch is to supply 3.3 V power supply to SD

card, which has internal discharge resistor.

PCA9450 has three versions: PCA9450A is companion PMIC for (i.MX 8M Mini),

PCA9450B is companion PMIC for i.MX 8M Nano and PCA9450C is companion PMIC

for i.MX 8M Plus.

The PCA9450 is offered in 56-pin HVQFN package, 7 mm x 7 mm, 0.4 mm pitch.

2 Features and benefits

• Six high-efficiency step-down regulators

– Three 3 A buck regulators with DVS feature and remote sense

– PCA9450A – Three 3 A buck regulators

– PCA9450B – Two 3 A buck regulators

– PCA9450C – 6 A dual-phase buck regulator and 3 A buck regulator

• One 3 A buck regulator

• Two 2 A buck regulators

• Five linear regulators

– Two 10 mA LDOs

– One 150 mA LDO

– One 200 mA LDO

– One 300 mA LDO

12 3 4 5 6 7...96

中文翻译

下载PDF

与PCA9450B相关器件

型号	品牌	获取价格	描述	数据表
PCA9450BHN	NXP	获取价格	Power management IC for i.MX 8M application processor family
PCA9450C	NXP	获取价格	Power management IC for i.MX 8M application processor family
PCA9450CHN	NXP	获取价格	Power management IC for i.MX 8M application processor family
PCA9451AHN	NXP	获取价格	PMIC supporting i.MX 93
PCA9460AUK	NXP	获取价格	Power Manage IC (PMIC) for i.MX 8ULP + LPDDR4
PCA9460BUK	NXP	获取价格	Power Manage IC (PMIC) for i.MX 8ULP + LPDDR4X
PCA9460CUK	NXP	获取价格	Power Manage IC (PMIC) for i.MX 8ULP + LPDDR3
PCA9481AUK	NXP	获取价格	8-channel ultra-low voltage, Fm+ I2C-bus switch with reset
PCA9482UK	NXP	获取价格	Switched capacitor charger
PCA9500	NXP	获取价格	8-bit I2C and SMBus I/O port with 2-kbit EEPROM