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PROTECTION IC. EC9525 Datasheet

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PROTECTION IC. EC9525 Datasheet
















EC9525 IC. Datasheet pdf. Equivalent













Part

EC9525

Description

LI-ION PROTECTION IC



Feature


www.DataSheet4U.com Preliminary LI-ION PROTECTION IC WITH POWER MOS Features Low supply current High accuracy detect or Threshold Supply current Standby cur rent (after detecting over-discharge) O ver-charge detector(Topt=25ºC) Over-ch arge detector (Topt=0 to 50ºC) Over-di scharge detector Variety of detector th reshold Built in protection circuit Out put delay of over ch.
Manufacture

E-CMOS

Datasheet
Download EC9525 Datasheet


E-CMOS EC9525

EC9525; arge Output delay of over-discharg Packa ge Over-charge detector threshold Over- discharge detector threshold Excess cur rent protection Accuracy Time delay at VDD=4.3V VDD=2.4V with built-in capacit or EC9525 TYP. 3.0uA TYP. 0.25uA +/- 25mV +/- 30mV +/- 3.0% 4.0V to 4.4V ste p of 0.005V 2.0V to 3.0V step of 0.005V 0.04V to 0.32V step of 0.04V ±20% 1.0 S 10mS SOP-8/8-pin .


E-CMOS EC9525

Page 1 of 9 DR18EV103B-Ver2.5 Prelimi nary LI-ION PROTECTION IC WITH POWER M OS General Description EC9525 The EC9 525 is protection IC with Power MOS for over-charge/discharge of rechargeable one-cell Lithium-ion(Li+) excess load c urrent, further include a short circuit protector for preventing large externa l short circuit current. Each of these IC is composed of .


E-CMOS EC9525

three voltage detectors, a reference uni t, a delay circuit, a short circuit pro tector, a logic circuit and two N-type Power MOS. When charging voltage crosse s the detector threshold from a low val ue to value higher than VDET1, the outp ut of Cout pin, the output of over-char ge detector/VD1, switches to low level, charger’s negative pin level. After detecting over-charg.





Part

EC9525

Description

LI-ION PROTECTION IC



Feature


www.DataSheet4U.com Preliminary LI-ION PROTECTION IC WITH POWER MOS Features Low supply current High accuracy detect or Threshold Supply current Standby cur rent (after detecting over-discharge) O ver-charge detector(Topt=25ºC) Over-ch arge detector (Topt=0 to 50ºC) Over-di scharge detector Variety of detector th reshold Built in protection circuit Out put delay of over ch.
Manufacture

E-CMOS

Datasheet
Download EC9525 Datasheet




 EC9525
www.DataSheet4U.com
LI-ION PROTECTION IC
WITH POWER MOS
Preliminary
EC9525
Features
Low supply current
High accuracy detector
Threshold
Variety of detector threshold
Built in protection circuit
Output delay of over charge
Output delay of over-discharg
Package
Supply current
Standby current (after detecting over-discharge)
TYP. 3.0uA
TYP. 0.25uA
Over-charge detector(Topt=25ºC)
+/- 25mV
Over-charge detector (Topt=0 to 50ºC)
+/- 30mV
Over-discharge detector
+/- 3.0%
Over-charge detector threshold
4.0V to 4.4V step of 0.005V
Over-discharge detector threshold
2.0V to 3.0V step of 0.005V
Excess current protection
0.04V to 0.32V step of 0.04V
Accuracy
±20%
Time delay at VDD=4.3V
1.0S
VDD=2.4V with built-in capacitor
10mS
SOP-8/8-pin
Page 1 of 9
DR18EV103B-Ver2.5




 EC9525
LI-ION PROTECTION IC
WITH POWER MOS
Preliminary
EC9525
General Description
The EC9525 is protection IC with Power MOS for over-charge/discharge of rechargeable
one-cell Lithium-ion(Li+) excess load current, further include a short circuit protector for
preventing large external short circuit current.
Each of these IC is composed of three voltage detectors, a reference unit, a delay circuit, a
short circuit protector, a logic circuit and two N-type Power MOS. When charging voltage crosses
the detector threshold from a low value to value higher than VDET1, the output of Cout pin, the
output of over-charge detector/VD1, switches to low level, charger’s negative pin level. After
detecting over-charge the VD1 can be reset and the output of Cout becomes high when the VDD
voltage is coming down to a level lower than “VREL1”, or when a kind of loading is connected to
VDD after a charger is disconnected from the battery pack while the VDD level is in between
“VDET1” and “VREL1” in the EC9525.
The output of Dout pin, the output of over-discharge detector/VD2, switches to low level after
internally fixed delay time passed, when discharging voltage crosses the detector threshold from a
high value lower than VDET2. After EC9525 detect the over-discharge voltage, connect a charger
to the battery pack, and when the battery supply voltage becomes higher than the over-discharge
detector threshold, VD2 is released and the voltage of Dout becomes “H” level.
An excess load current can be sensed and cut off after internally fixed delay time passed
through the built in excess current detector, VD3 with Dout being enabled to low level. Once after
detecting excess current, the VD3 is released and Dout level switches to high by detaching a battery
pack from a load system.
Further, short circuit protector makes Dout level to low immediately with external short circuit
current and re-moving external short circuit leads Dout level to high. After detecting
over-discharge, supply current will be kept extremely low by halt some internal circuits operation.
The output delay of over-charge detectors can be set by connecting internal capacitors. Output type
of Cout and Dout are observed. 8-pin package, SOP-8 is available.
Page 2 of 9
DR18EV103B-Ver2.5




 EC9525
Block Diagram
LI-ION PROTECTION IC
WITH POWER MOS
Preliminary
EC9525
Pin Configurations
PIN DESCRIPTION
Pin No.
1
2
3
4
5
6
7
8
Symbol
P-
Cout
VM
DO
Vss
Vss
VDD
P-
Pin description
Pin for charge negative input
Output of over-charge detection, CMOS output
Internal pin for charge negative input
Output of over-discharge detection, CMOS output
Ground
Ground
Power supply
Pin for charge negative input
Page 3 of 9
DR18EV103B-Ver2.5




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