R5400N4190FB [RICOH]

Power Supply Support Circuit, Fixed, 1 Channel, CMOS, PDSO5, SOT-23-5, 5 PIN;


型号：	R5400N4190FB
厂家：	RICOH ELECTRONICS DEVICES DIVISION
描述：	Power Supply Support Circuit, Fixed, 1 Channel, CMOS, PDSO5, SOT-23-5, 5 PIN 光电二极管
文件：	总1页 (文件大小：80K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

R5400N Series

Li-ion/polymer 1Cell Protector

The R5400N Series are high input voltage CMOS-based protection ICs for over-charge/discharge of rechargeable one-cell Lithium-ion

(Li-ion) / Lithium polymer excess load current, further include a short circuit protector for preventing large external short circuit

current and excess discharge-current.

Each of these ICs is composed of three voltage detectors, reference units, a delay circuit, a short circuit detector, an oscillator, a

counter, and a logic circuit. SOT-23-5 package is available.

FEATURES

•

Supply Voltage (VDD

Charger Negative Input Voltage (V-) ··· -35V (Absolute Maximum Rating) discharge-current Detector Threshold Accuracy····· 15mV

Operating Input Voltage Range (VDD ····· 1.5V to 5.0V (V^DETOutput Delay Time (tVDET3)···· Typ. 12ms

)

···························· 12V (Absolute Maximum Rating)

•

Excess

Detector Threshold Range ···· 0.05V to 0.20V (0.005V steps)

)

Supply Current (IDD

)

····························· Typ. 3.5μA (A Version)

•

Short Protection Voltage (Vshort)······················· Typ. 1.3V

Typ. 4.0μA (B Version)

Output Delay Time (tshort)······ Typ. 300μs

• 0V-battery charge............................................. Selectable (A Version)

•

Standby Current (I

)

····························· Max. 0.1μA

Over-charge Detector Threshold Range······· 4.0V to 4.5V (0.005V steps) • Package ··························································· SOT-23-5

(VDET1)

Detector Threshold Accuracy··· 25mV (25°C)

30mV (-5 to 55°C)

)······· Typ. 1.1s or 275ms

Over-discharge Detector Threshold Range······· 2.0V to 3.0V (0.1V steps)

(VDET2) Detector Threshold Accuracy··· 2.5%

Output Delay Time (tV^DET)······· Typ. 20ms

Output Delay Time (tV^DET

•

BLOCK DIAGRAM

R5400N

VDD

DC Circuit

Oscillator

Counter

Logic

Circuit

Level

Shift

VD1

VD2

Short

Detector

Delay

Logic

Circuit

VD3

VSS

DOUT

COUT

V-

SELECTION GUIDE

Package

Quantity per Reel

Part No.

SOT-23-5

3,000 pcs

R5400N

xxx$∗ -TR-FE

xxx: Serial Number for the R5400N Series designating input three threshold for

over-charge, over-discharge, and excess discharge-current detectors.

: Designation of 0V-battery charge option.

∗

(

.A.) 0V-charge available

Designation of Output delay time for over-charge.

(

.B.) 0V-charge unavailable

(

) tVDET1=1.1s

..) tVDET1=275ms

PACKAGE (Top View)

SOT-23-5

V-

VDD

VSS

DOUT

COUT

APPLICATIONS

• Li-ion / Li polymer protector of over-charge, over-discharge, excess discharge-current, excess charge-current for battery pack

• High precision protectors for cell-phones and any other gadgets using on board Li-ion / Li polymer battery

Li-ion/polymer 1Cell Protector

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