• Any products mentioned in this catalog are subject to any modification in their appearance and others for improvements without prior notification.

• The details listed here are not a guarantee of the individual products at the time of ordering. When using the products, you will be asked to check their specifications.

MITSUMI

1cell Li-ion/Li-polymer battery protection IC MD1421ExxCPAL Series

Pin Assignment

Top view

Pin No.

Function

PLP-4-1228

S2

4

3

1

2

IDT

D

S1

1

S1 is a source pin of Discharge MOS-FET and a negative

power supply, which is connected to the negative terminal of

the battery.

2

VCC is a positive power supply pin, which is connected to

the positive terminal of the battery through Rvcc (330 to 470

ohm).

3

V- is an input pin that detects overcurrent.

This pin is connected to the source terminal of Charge MOS-

FET through Ridt (2.7k ohm).

4

S2 is a source pin of Charge MOS-FET, which is connected to a

negative power supply terminal of chargers.

D

D is a common pin of two drains of Charge MOS-FET and

Discharge MOS-FET. D must be open electrically.

Please inquire to us, if you request a rank other than the above.

Note3

0V battery charge function

: Permission

: Prohibition

Note4

Optional functions

: Provided

: Not provided

Product name

Package

Optional

function

Detection / Release voltage

Detection delay time

Optional

function

(Note3) (Note4)

V1

V2

V4

V3

V5

V9

V6

Tsp3

Tsp1

Tsp2

Tsp5

Tsp4 Idischg Icharge

VVVVVVV

s

ms

ms

ms

µs

A

A

MD1421E28CPAL-R

PLP-4-1228

4.375

4.175

3.000

3.000

0.040

-0.050

0.900

1.0

100.0

12.0

8.5

500

1.05

1.30

MD1421E34CPAL-R

PLP-4-1228

4.375

4.175

3.000

3.200

0.040

-0.050

0.900

1.0

100.0

12.0

8.5

500

1.05

1.30

MD1421E35CPAL-R

PLP-4-1228

(0.65V)

4.425

4.225

2.700

2.700

0.070

-0.070

0.560

1.0

100.0

20.0

8.5

750

1.80

1.80

MD1421E36CPAL-R

PLP-4-1228

4.425

4.225

2.800

2.800

0.085

-0.095

0.900

1.0

100.0

20.0

8.5

750

2.20

2.45

MD1421E39CPAL-R

PLP-4-1228

(0.90V)

4.280

-

2.700

2.700

0.080

-0.080

0.900

1.0

100.0

20.0

8.5

750

2.05

2.05

Selection Guide

(5000pcs/Reel)