NT1660/NT1662/NT1663

/NT1664 Series

© Neotec Semiconductor Ltd.,

1/10

NT166xA DS V1.04

www.neotec.com.tw

The above information is the exclusive intellectual property of Neotec Semiconductor Ltd. and shall not be disclosed, distributed without permission from Neotec.

Lithium-lon/Polymer/Iron Protector

Features

 High accuracy voltage detection circuit

 Overcharge detection :

25mV

 Low power consumption

 Supply current: 6.6uA max. (Ta=+25

℃)

 Delay times of overcharge is generated by an internal

circuit (fixed).

 Built-in breaking wire detector function

 Package: 8 pin SOP、20 pin TSSOP、48 pin LQFP

 Lead-free, Sn 100%, Halogen-free

Applications

 Lithium-ion rechargeable battery pack

 Lithium-polymer rechargeable battery pack

 Lithium-iron phosphate rechargeable battery pack

Description

The

NT1660/NT1662/NT1663/NT1664

series are the 4~20-cell secondary protection IC

for

lithium-ion

/lithium-polymer

/lithium-iron

phosphate rechargeable battery pack. The high

accuracy voltage detector and delay time circuits

are built in NT1660/NT1662/NT1663/NT1664

series with state-of-the-art design and process.

Typical Application Circuit



NT1660A

7.5M

Ω

2.4M

Ω

BAT5

BAT4

BAT3

BAT2

BAT1

P-

P+

NT1660A

0.1uF

0.1uF

0.1uF

0.1uF

0.1uF

1K

Ω

1K

Ω

1K

Ω

1K

Ω

1K

Ω

470

Ω

0.1uF

4

5

6

7

8

1

3

2

G

D

S

Q1

NMOS

CO

VDD

V5

V4

V3

V2

V1

VSS

SD1

These devices have limited build-in ESD protection. The leads must be shorted together or the device placed in conductive foam

during storage or handling to prevent electrostatic damage to the MOS gates.