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
ricoh.com
Main content

2-Cell Li-ion Battery Protection ICs

Ricoh's 2-cell Li-ion/polymer battery protection ICs have a high accuracy. Especially R5462 Series have a high accuracy over-charge detection of±10mV in a temperature range from 0°C to 50°C.

Product
Name
Overcharge
Detector
Threshold [V]
(Accuracy)
Overdischarge
Detector
Threshold [V]
(Accuracy)
Excess Discharge
Current Detector
Threshold [V]
(Accuracy)
Excess Charge
Current Detector
Threshold [V]
(Accuracy)
Supply
Current
[µA]
Alarm
Function
Package Download
R5460 4.2 to 4.5
or
3.5 to 4.0
(±25mV)
2.0 to 3.0
(±2.5%)
0.05 to 0.20
(±15mV)
-0.1 or
-0.2 (±30mV)
or
-0.4 (±40mV)
4.0 Not
Available
DFN(PLP)1820-6
SOT-23-6
Datasheet
R5462 3.65 to 4.32*1
(±10mV)
2.0 to 3.2
(±1%)
0.05 to 0.20
(±10mV)
-0.2 to -0.1
(±20mV)
4.0 Not
Available
DFN(PLP)1820-6B Flyer
R5463 3.65 to 4.32
(±20mV)
2.0 to 3.2
(±1%)
0.05 to 0.20
(±10mV)
or
0.20 to 0.40
(±10%)
-0.2 to -0.1
(±20mV)
4.0 Not
Available
DFN(PLP)1820-6B Datasheet
R5464 3.6 to 4.5*1
(+10mV/-15mV)
2.0 to 3.0
(±2.5%)
0.05 to 0.24
(±15mV)
-0.22 to -0.1
(±20mV)
5.0 or 6.0 Available DFN(PLP)2527-10 Datasheet
R5466 4.0 to 4.3
(+20mV/-25mV)
2.0 to 3.0
(±2.5%)
0.05 to 0.24
(±15mV)
-0.22 to -0.1
(±20mV)
5.0 Available DFN(PLP)2527-10 -
  • *1Topt=0°C to 50°C, Considering of variation in parameters.
    We compensate for this characteristics related to temperature by laser-trimming, however, these specifications are guaranteed by design.

TYPICAL APPLICATION

TYPICAL APPLICATION

TIN : External thermistor connection pin.
RIN : External resistor connection pin.
Ps : P-channel source pin for over-charge alarm output*

  • *)Alarm output pin (AOUT) is a P-channel open drain output.
    In the R5464, the source of AOUT is Ps pin, not VDD pin. Therefore, the external pull-down resistor, R6 does not have an impact on the drop out between a plus terminal of a battery pack and a VDD pin. Thus, R6 value range is wide enough to choose.
  • *)Products built-in the Alarm output pin(AOUT): R5464, R5466

Alarm Function

Alarm Function

When cell 1 voltage or cell 2 voltage exceeds the alarm threshold voltage (VALML), an alarm signal will be present at the AOUT pin. If the detection temperature of thermistor exceeds 45°C, the alarm detect voltage threshold changes to VALMH. (The detection temperature can be changed)

  • *)Products with alarm output controlled by an external thermistor.:
    R5464, R5466

Inquiry about products

Contact Us by Mail

Contact Us by Mail

Contact Form (SSL Form)

Contact Us by Phone

Contact Us by Phone

Contact Phone Number

Inquiry about purchase

Purchase, Request for Samples and Documents

Distributors

Sample Online

Online Distributors