Skip to main content Skip to first level navigation

RICOH imagine. change.

RICOH ELECTRONIC DEVICES CO., LTD.

Skip to main content First level navigation Menu
Main content

R5434D Series

Outline

Flyer

The R5434D Series are high voltage CMOS-based protection ICs for over-charge of rechargeable three-cell / four-cell / five-cell Lithium-ion / Lithium-polymer battery.
Each of these ICs is composed of five voltage detectors, a reference circuit, a delay circuit, a short circuit, an oscillator, a counter and a logic circuit.
When detecting over-charge, COUT outputs "H" after delay time, makes Nch MOS FET turn on and cut down the fuse.
Package is SON-8.

Features

Absolute Maximum Rating 30V
Supply Current TYP. 3.0µA
Detector thresholds range and accuracy
Over-charge detector threshold 3.6V to 4.5V (5mV steps) (n=1, 2, 3, 4, 5) (±25mV)
Over-charge released voltage VDET1n -0.1 to 0.4V (50mV steps) (n=1, 2, 3, 4, 5)
Output delay time
Over-charge detector output delay 1.5s
Output Delay Time Shorting Function Available
Package SON-8

Tap to see the table

Applications

  • Power source for portable communication equipment.
  • Power source for electrical appliances such as PC.
  • Power source for power tools.

Documents Download

Flyer Package Info. code List Quality Assurance Data
R5434D Series SON-8 R5434D Series Reliability

All PDF & Excel files are less than 1MB unless otherwise stated.

Inquiry about products

Technical Support

Inquiries (SSL Form)

Inquiry about business

Purchase, Request for Samples and Documents

Ricoh provide device products for corporate/ Industries through our distributors. Please contact a local distributor in your region for any sales-related inquiries such as price, stock, and delivery date, etc.

Distributors

Sample Online

Ricoh open "Ricoh Web Sample Shop" in Chip One Stop. Buy samples of Power Management ICs and Real Time Clock ICs online.

chip1stop
RICOH Web Sample Shop