Datasheet > RT9759

RT9759

更新时间： 2024-11-29 14:35:35

品牌	Logo	应用领域
立锜 - RICHTEK		电池
页数	文件大小	规格书
60页	3339K
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技术参数
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RT9759 技术参数

Status：	Active	Vin (min) (V)：	2.8
Vin (max) (V)：	17	Battery Charge Voltage (max) (V)：	4.4
Battery Charge Current (max) (A)：	8	Input Source：	USB
Features：	Adjustable Frequency;OCP;OVP;SCP;Stable with Ceramic Capacitor;UVP	Package Type：	WL-CSP3.35x3.35-56(BSC)

RT9759 数据手册

RT9759

Smart Cap Divider Charger

General Description

Features

 External OVP Control and Regulation

 High Absolute Maximum Rating of 40V

 Fast Reaction Time 100ns and Fast Turn Off

Time 100ns

The RT9759 is a high efficiency and high charge current

charger. The efficiency is up to 97.8% when VBAT =

4.2V, IBAT = 2.5A and the maximum charge current is

up to 8A. The device integrates smart cap divider

topology, external over-voltage protection control, an

input reverse blocking NFET and 2-way regulation, a

dual-phase charge pump core, 15-way protection, 7-

way system alarm and 9-Channel high speed analog-

to-digital converter. The high speed analog-to-digital

converter provides input and output voltage, current and

temperature informations for host. The host can monitor

the informations by I²C serial interface.

 VBAT Voltage Regulation (VBAT REG)

 IBAT Current Regulation (IBAT REG)

 Input Reverse Blocking NFET

 Block the Reverse Current

 Dual-Phase Charge Pump Core

 8A Output Current Capability

 Efficiency Up to 97.8% when VBAT = 4.2V,

IBAT = 2.5A

 250kHz to 750kHz Variable Switching

Frequency Stay Out of Audio Band

 Spread Spectrum Technology for EMI

Reduction

Applications

 SmartPhones

 Tablet

 4-Error Charge Pump Switch Protection

 VBUS Voltage Too High Error Protection

before Switch (VBUS_HIGH_ERR)

 VBUS Voltage Too Low Error Protection before

Switch (VBUS_LOW_ERR)

 PC

Ordering Information

RT9759

Package Type

WSC : WL-CSP-56B 3.35x3.35 (BSC)

 CFLY Short Error Protection Before Switch

(CFLY_DIAG)

Note :

 NFET Over-Current Error Protection During

Switch (CON_OCP)

Richtek products are :

 RoHS compliant and compatible with the current

 10-Way System Protection

requirements of IPC/JEDEC J-STD-020.

 VBUS Over-Voltage Protection (VBUS_OVP)

 IBUS Over-Current Protection (IBUS_OCP)

 IBUS Under-Current Protection (IBUS_UCP)

 VOUT Over-Voltage Protection (VOUT_OVP)

 VBAT Over-Voltage Protection (VBAT_OVP)

 IBAT Over-Current Protection (IBAT_OCP)

 Dropout Over-Voltage Protection (VDR_OVP)

 TSBUS Over-Temperature Protection

(TBUS_OTP)

 Suitable for use in SnPb or Pb-free soldering processes.

 TSBAT Over-Temperature Protection

(TBAT_OTP)

 Junction Over-Temperature Protection

(TDIE_OTP)

 7-Way System Alarm

 VBUS Over-Voltage Alarm (VBUS_OVP_ALM)

 IBUS Over-Current Alarm (IBUS_OCP_ALM)

is a registered trademark of Richtek Technology Corporation.

DS9759-01 October 2019

www.richtek.com

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