RT9465 datasheet, PDF - EEWORLD Datasheet

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RT9465: Description3A Single Cell Li-on Battery Slave Switching Charger, Active, 3.9V, 14V, 5.06V, 3A, USB, OCP;OVP;UVP; CategoryPower/power management SingleCellLi-Ion; File Size253KB，25 Pages; ManufacturerRichtek Technology Corporation; Websitehttps://www.richtek.com/

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RT9465 Overview

3A Single Cell Li-on Battery Slave Switching Charger, Active, 3.9V, 14V, 5.06V, 3A, USB, OCP;OVP;UVP

RT9465 Parametric

Parameter Name	Attribute value
Status	Active
Vin (min)(V)	3.9
Vin (max)(V)	14
Battery Charge Voltage (max)(V)	5.06
Battery Charge Current (max)(A)	3
Input Source	USB
Features	OCP;OVP;UVP
Package Type	WQFN3x3-16
Datasheet	https://datasheet5.oss-cn-shanghai.aliyuncs.com/datasheets/richtek/DS9465-01.pdf

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RT9465

3A Single Cell Li-on Battery Slave Switching Charger

General Description

The RT9465 is a switch-mode single cell li-Ion/Li-Polymer

battery charger for

portable applications. It integrates a

synchronous PWM controller and high accuracy voltage

regulation. Besides, the charging current is regulated

through the integrated sensing MOSFET.

The RT9465 optimizes the charging task by using a control

algorithm to vary the charge rate via different modes,

including fast charge mode and constant voltage mode.

The key charge parameters are programmable via the I

interface. The junction temperature is monitored by ADC.



Features



Input Voltage Range : 3.9V to 14V

Synchronous 1.5MHz/0.75MHz Switching Frequency

95% Max. Duty

Up to 92%/94% Peak Efficiency at V

= 9V/5V

Over-Voltage Protection : 14.5V

Under-Voltage Protection : 3.8V

Under-Voltage-Lock-Out : 3.3V

Fault Detection (V

and V

BAT

Monitoring)

Programmable Minimum Input Voltage Range :

3.9V to 13.4V (0.1V/Step)

Programmable Battery Voltage Regulation Range :

3.8V to 5.06V (0.02V/Step)

Programmable End of Charge Range : 0.6A to 1.6A

(0.1A/Step)

Programmable Average Output Current Regulation

Range : 0.6A to 3A (0.1A/Step)

Junction Temperature Monitor : 60°C to 116°C (4°C/

Step)

Minimum Input Voltage Regulation (MIVR) :

Battery CV (Constant Voltage) Regulation :

Output CC (Constant Current) Regulation, Output

Current < 1A :

100mA (V

= 9V/12V)

Output CC (Constant Current) Regulation, Output

Current > 1A :

10% (V

= 9V/12V)

Junction Temperature Monitor Accuracy :

3°C

Thermal Shutdown : 160°C

Other features include under-voltage protection, over-

voltage protection (including V

BAT

and V

side), thermal

regulation and MIVR.

The RT9465 is available in a WQFN-16L 3x3 package.



Ordering Information

RT9465

Package Type

QW : WQFN-16L 3x3 (W-Type)

Lead Plating System

G : Green (Halogen Free and Pb Free)

Note :

Richtek products are :



RoHS compliant and compatible with the current require-

ments of IPC/JEDEC J-STD-020.

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

Applications



Marking Information

K7= : Product Code

K7=YM

DNN

YMDNN : Date Code

Cellular Telephones

Personal Information Appliances

Tablet PC, Power Bank

Portable Instruments

is a registered trademark of Richtek Technology Corporation.

DS9465-01

November 2018

www.richtek.com

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