• 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
One-cell lithium-ion/lithium-polymer battery protection IC
One-cell lithium-ion/lithium-polymer battery protection IC
MM3280 Series
Outline
MM3280 series are protection IC using high voltage CMOS process for overcharge, overdischarge and
overcurrent protection of the rechargeable Lithium-ion or Lithium-polymer battery. The overcharge,
overdischarge, discharging overcurrent, short, charging overcurrent (optional), and over voltage charger
(optional) protection of the rechargeable one-cell Lithium-ion or Lithium-polymer battery can be detected.
Each of these IC composed of four voltage detectors, short detection circuit, reference voltage sources,
oscillator, counter circuit and logical circuits.
Features
(Unless otherwise specifi ed, Topr=+25°C)
1. Range and accuracy of detection/release voltage
Overcharge detection voltage 3.6V to 5.0V, 5mV steps Accuracy±20mV
Accuracy±25mV (Topr=
-
5 to +60°C)
Overcharge release voltage 3.6V to 4.5V, 50mV steps Accuracy±30mV
Overdischarge detection voltage 2.0V to 3.0V, 50mV steps Accuracy±35mV
Overdischarge release voltage 2.0V to 3.5V, 50mV steps Accuracy±100mV
Discharging overcurrent detection voltage +50mV to +300mV, 5mV steps Accuracy±10mV
Charging overcurrent detection voltage -300mV to
-
50mV, 5mV steps Accuracy±20mV
Short detection voltage Selection from 0.7V, 0.8V, 0.9V Accuracy±100mV
Over voltage charger detection voltage VDD
-
8.0V fi xed Accuracy±2.0V
Over voltage charger release voltage VDD
-
7.3V fi xed Accuracy±2.0V
2. Range of detection delay time
Overcharge detection delay time Selection from 0.25s, 1.0s, 1.2s, 4.5s
Overdischarge detection delay time Selection from 20ms, 24ms, 96ms, 125ms, 128ms, 144ms
Discharging overcurrent detection delay time Selection from 8ms, 12ms, 16ms, 20ms, 24ms, 48ms, 96ms, 160ms
Charging overcurrent detection delay time Selection from 4ms, 6ms, 8ms, 10ms, 12ms, 16ms, 96ms
Short detection delay time Selection from 200µs, 300µs, 400µs
3. 0V battery charge function Selection from "Prohibition" or "Permission"
4. The overcharge detection delay timer reset time function (function for the pulse charge) is provided.
5. Low current consumption
Normal mode Typ. 3.0µA, Max. 6.0µA
Stand-by mode Max. 0.1µA
(For "Charger connection release" the overdischarge release condition.)
Max. 0.5µA
(For "Voltage release" the overdischarge release condition.)
6. Absolute maximum ratings
VDD pin VSS
-
0.3V to +12V
COUT pin and V
-
pin VDD
-
28V to VDD+0.3V
DOUT pin VSS
-
0.3V to VDD+0.3V
Storage temperature
-
55°C to +125°C
Operation temperature
-
40°C to +85°C
Optional function
• 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
One-cell lithium-ion/lithium-polymer battery protection IC
Pin Assignment
Top view Pin No.
Symbol Function
SSON-6E/6J/6M/6K
SON-6C Ver1 Ver2 Ver3 Ver4
564
132
13
65
2
4
1626 V–
Input terminal connected to charger negative voltage.
2 1 1 2 COUT Output of overcharge detection.
3 3 3 3 DOUT Output of overdischarge detection.
4 4 4 4 VSS VSS terminal. Connected to ground.
5555VDD
VDD terminal. Connected to IC substrait.
6 2 6 1 DS/NC Delay shorten terminal.
Top view
Pin No. Symbol Function
SOT-26A/26B
13
6
5
2
4
1 DOUT Output of overdischarge detection.
2V–
Input terminal connected to charger negative voltage.
3 COUT Output of overcharge detection.
4 DS Delay shorten terminal.
5 VDD
VDD terminal. Connected to IC substrait.
6 VSS VSS terminal. Connected to ground.