Datasheet > ZSPM4521AA1R

ZSPM4521AA1R

更新时间： 2024-01-30 23:06:48

品牌	Logo	应用领域
艾迪悌 - IDT		/
页数	文件大小	规格书
30页	470K
描述
High-Efficiency Charger for Li-Ion Batteries

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ZSPM4521AA1R 数据手册

ZSPM4521

High-Efficiency Charger for Li-Ion

Batteries with Photovoltaic Sources

Datasheet

Brief Description

Features

•

Temperature-independent photovoltaic maximum

power tracking (MPPT) regulator

The ZSPM4521 is a DC/DC synchronous switching

lithium-ion (Li-Ion) battery charger with fully inte-

grated power switches, internal compensation, and

full fault protection. It uses a temperature-indepen-

dent photovoltaic maximum power point tracking

(MPPT) function to optimize power output from the

source during Full-Charge Constant-Current (CC)

Mode. Its switching frequency of 1MHz enables the

use of small filter components, resulting in smaller

board space and reduced bill-of material costs.

•

VBAT reverse-current blocking

Programmable temperature-compensated

termination voltage: 3.94V to 4.18V ± 1%

•

User programmable maximum charge current:

50mA to 1500mA

•

Supervisor for V_BATreported at the NFLT pin

Input supply under-voltage lockout

Full protection for VBAT over-current, over-

temperature, VBAT over-voltage, and charging

timeout

During Full-Charge Constant-Current Mode, the duty

cycle is controlled by the MPPT regulator. Once the

battery’s termination voltage is reached, the regula-

tor operates in Constant Voltage Mode. In this mode,

the ZSPM4521 modulates the charging current until

the battery reaches full charge. When the regulator

is disabled (the EN pin is low), the device draws

10µA (typical) quiescent current (Disabled Mode).

•

Charge status indication

I²C™ program interface with EEPROM registers

Related IDT Smart Power Products

•

ZSPM4523 DC/DC Synchronous Switching

The ZSPM4521 includes supervisory reporting

through the NFLT (inverted fault) open-drain output

to interface other components in the system. Device

programming is achieved by an I²C™* interface

through the SCL and SDA pins.

Super Capacitor Charger With MPPT Regulator

•

ZSPM4551 High-Efficiency Li-Ion Battery Charger

ZSPM4121 Ultra-low Power Under-Voltage Switch

ZSPM4141 Ultra-Low-Power Linear Regulator

Physical Characteristics

Benefits

•

Wide input voltage range: 4.0V to 7.2V

Junction operating temperature: -40°C to 125°C

Package: 16-pin PQFN (4mm x 4mm)

•

Up to 1.5A of continuous output current in Full-

Charge Constant Current (CC) Mode

•

High efficiency – up to 92% with typical loads

Available Support

ZSPM4521 Application Circuit

•

Evaluation Kit

•

Documentation

ZSPM4521

Photovoltaic Cells

VIN

VTH_REF

R_REF

C_IN

VTHERM

GND

VDD

C_VDD

R_SENSE

L_OUT

Battery

C_OUT

R_THM

SCL

SDA

VSENSE

VDD

R_PULLUP

(optional)

VBAT

NFLT

VDD

R_PULLUP

(optional)

PGND

* I²C™ is a trademark of NXP.

January 27, 2016

12 3 4 5 6 7...30

中文翻译

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与ZSPM4521AA1R相关器件

型号	品牌	获取价格	描述	数据表
ZSPM4521AA1W	IDT	获取价格	High-Efficiency Charger for Li-Ion Batteries
ZSPM4521KIT	IDT	获取价格	High-Efficiency Charger for Li-Ion Batteries
ZSPM4523	IDT	获取价格	High-Efficiency Solar PV MPPT Regulator
ZSPM4523AA1R	IDT	获取价格	High-Efficiency Solar PV MPPT Regulator
ZSPM4523AA1W	IDT	获取价格	High-Efficiency Solar PV MPPT Regulator
ZSPM4523KIT	IDT	获取价格	High-Efficiency Solar PV MPPT Regulator
ZSPM4551	IDT	获取价格	High-Efficiency Charger for Li-Ion Batteries
ZSPM4551AA1R	IDT	获取价格	High-Efficiency Charger for Li-Ion Batteries
ZSPM4551AA1W	IDT	获取价格	High-Efficiency Charger for Li-Ion Batteries
ZSPM4551KIT	IDT	获取价格	High-Efficiency Charger for Li-Ion Batteries

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