概要

The ZSPM4551 is a DC/DC synchronous switching lithium-ion (Li-Ion) battery charger with fully integrated power switches, internal compensation, and full fault protection. Its switching frequency of 1MHz enables the use of small filter components, resulting in smaller board space and reduced BOM cost. In Full-Charge Constant-Current Mode, the regulation is for constant current (CC). Once termination voltage is reached, the regulator operates in voltage mode. When the regulator is disabled (the EN pin is low), the device draws 10µA (typical) quiescent current. The ZSPM4551 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.

ZSPM4551 - Application Circuit
ZSPM4551 - Block Diagram
ZSPM4551 - Pinout
ZSPM4551 - Application Circuit
ZSPM4551 - Block Diagram
ZSPM4551 - Pinout
  • VBAT reverse-current blocking
  • Programmable temperature-compensated termination voltage: 3.94V to 4.18V ±1%
  • User programmable maximum charge current: 50mA to 1500mA
  • Current mode PWM control in constant voltage
  • Supervisor for VBAT reported at the NFLT pin
  • Input supply under-voltage lockout
  • Full protection for over-current, over-temperature, VBAT over-voltage, and charging timeout
  • Charge status indication
  • I2C program interface with EEPROM registers

ドキュメント

= ピックアップ
分類 タイトル 日時
データシート
ZSPM4551 Datasheet
PDF 526 KB
ガイド
Renesas CAD Altium Libraries for AID Products Rev 20210820
7Z 1.21 MB
アプリケーションノート
ZSPM4551 Application Note – Li-Ion Battery Charging Applications
ログインしてダウンロード PDF 197 KB
マニュアル－開発ツール
ZSPM4551 Evaluation Kit Description
ログインしてダウンロード PDF 963 KB
データシート－簡略版
ZSPM4551 Short-form Datasheet
PDF 153 KB
5 items

設計・開発

ソフトウェアダウンロード
分類 タイトル 日時
ソフトウェア／ツール－評価版ソフトウェア
ZSPM45XX Evaluation Kit Software Setup V1.020 (zip)
ログインしてダウンロード ZIP 935 KB
1 item

ボード＆キット

ZSPM4551KIT - Evaluation Kit (Top View)

ZSPM4551KIT

Evaluation
詳しくはこちら

Evaluation Kit for ZSPM4551

The ZSPM4551 Evaluation Board contains the ZSPM4551 High-Efficiency Li-Ion Battery Charger IC with recommended external components and test points. The ZSPM4551 enables...

主要ドキュメント:
ZSPM4551 Evaluation Kit Description

ECADモデル

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ECADモデルを調べる
Diagram of ECAD Models

製品選択

    Processing table
    Pkg. Type
    Lead Count (#)
    Temp. Range
    Carrier Type
    ご購入 / サンプル
    型名
    ZSPM4551AA1R
    circle新規採用非推奨品
    memory
    view_in_ar
    		VFQFPN 16 -40 to 125°C Reel
    ZSPM4551AA1W
    circle新規採用非推奨品
    memory
    view_in_ar
    		VFQFPN 16 -40 to 125°C Reel
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