MD1421E28CPAL-R [MITSUMI]
1cell Li-ion/Li-polymer battery protection IC;
| 型号： | MD1421E28CPAL-R |
| 厂家： | 
MITSUMI ELECTRONICS, CORP. |
| 描述： | 1cell Li-ion/Li-polymer battery protection IC |
| 文件： | 总3页 (文件大小：48K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
MITSUMI
1cell Li-ion/Li-polymer battery protection IC MD1421ExxCPAL Series
1cell Li-ion/Li-polymer battery protection IC
MD1421ExxCPAL Series
Outline
MD1421ExxCPAL series are protection IC with integrated MOSFET for protection of the rechargeable lithium-
ion or lithiumpolymer battery. The overcharge, overdischarge and discharging and charging overcurrent
protection of the rechargeable one-cell lithium-ion or lithium-polymer battery can be detected.
(Unless otherwise specified, Topr=+25°C)
Features
(1) Range and accuracy of detection/release voltage
Overcharge detection voltage
4.10V to 4.45V, 5mV steps
Accuracy 20mV
Accuracy 25mV (Topr=−5°C to +60°C)
Accuracy 50mV
Overcharge release voltage
3.90V to 4.30V (Note1)
2.00V to 3.00V (Note2)
2.00V to 3.20V (Note2)
40mV to 180mV, 5mV steps
−180mV to −50mV, 5mV step
Selection from 0.56, 0.90V
VDD−8.0V fixed
Overdischarge detection voltage
Overdischarge release voltage
Discharge overcurrent detection voltage
Charging overcurrent detect voltage
Short detection voltage
Accuracy 100mV
Accuracy 100mV
Accuracy 5mV
Accuracy 15mV
Accuracy 100mV
Accuracy 2.0V
Over voltage charger detection voltage
Over voltage charger release voltage
VDD−7.3V fixed
Accuracy 1.5V
(2) Range of detection delay time
Overcharge detection delay time
Selection from 1.0s, 4.5s, 6.25s
Selection from 100ms, 256ms
Overdischarge detection delay time
Discharging overcurrent detection delay time
Charging overcurrent detection delay time
Short detection delay time
Selection from 8ms, 12ms, 16ms, 20ms, 34ms
Selection from 8.5ms, 25ms, 32.5ms
Selection from 0.50ms, 0.75ms, 1.00ms
(3) 0V battery charge function
Selection from ”Permission” or ”Prohibition”
(4) The overcharge detection delay timer reset time function
(function for the pulse charge) is provided.
fixed
(5) Low current consumption
Normal mode
Typ. 3.0µA, Max. 5.2µA
Max. 0.1µA
Stand-by mode
(For ”Charger connection release” the overdischarge release condition.)
Max. 0.5µA
(For ”Voltage release” the overdischarge release condition.)
(6) MOS-FET
Source to Source on state resistance
Typ. 38.0m (@VCC=3.7V)
(7) Absolute maximum ratings
VCC pin
−0.3V to +12V
VCC−24V to VCC+0.3V
Max. 24V
V− pin
Drain-source voltage
Drain current
Max. 6V
Total Power Dissipation
Storage temperature
Operation temperature
Max. 1.0W
−40°C to +125°C
−40°C to + 85°C
Note1 : Hysteresis voltage between Overcharge detection and release voltage is selectable from 0.10V/0.15V/0.20V/0.25V.
Note2 : Please inquire to us about details of the setting of Overdischarge detection and release voltage.
• 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.
1
Function
PLP-4-1228
S1 is a source pin of Discharge MOS-FET and a negative
power supply, which is connected to the negative terminal of
the battery.
VCC is a positive power supply pin, which is connected to
the positive terminal of the battery through Rvcc (330 to 470
ohm).
2
3
3
4
S2
IDT
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).
D
S2 is a source pin of Charge MOS-FET, which is connected to a
negative power supply terminal of chargers.
1
2
S1
VCC
4
D is a common pin of two drains of Charge MOS-FET and
Discharge MOS-FET. D must be open electrically.
D
(5000pcs/Reel)
Selection Guide
Optional
function
Optional
function
Detection / Release voltage
Detection delay time
Product name
Package
V1
V
V2
V
V4
V
V3
V
V5
V
V9
V
V6
V
Tsp3 Tsp1 Tsp2 Tsp5 Tsp4 Idischg Icharge
(Note3) (Note4)
s
ms
ms
ms
8.5
8.5
8.5
8.5
8.5
µs
A
A
MD1421E28CPAL-R
MD1421E34CPAL-R
MD1421E35CPAL-R
MD1421E36CPAL-R
MD1421E39CPAL-R
PLP-4-1228
4.375 4.175 3.000 3.000 0.040
4.375 4.175 3.000 3.200 0.040
4.425 4.225 2.700 2.700 0.070
4.425 4.225 2.800 2.800 0.085
-
-
-
-
-
0.050 0.900
0.050 0.900
0.070 0.560
0.095 0.900
0.080 0.900
1.0
1.0
1.0
1.0
1.0
100.0 12.0
100.0 12.0
100.0 20.0
100.0 20.0
100.0 20.0
500
500
750
750
750
1.05
1.05
1.80
2.20
2.05
1.30
1.30
1.80
2.45
2.05
PLP-4-1228
PLP-4-1228
PLP-4-1228
PLP-4-1228
(0.65V)
(0.90V)
4.280
-
2.700 2.700 0.080
Note3
Note4
0V battery charge function
Optional functions
: Permission : Prohibition
: Provided : Not provided
Please inquire to us, if you request a rank other than the above.
• 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
Application Circuit
Pack+
Rvcc
330
VCC
Overcharge timer
OSC
Drive circuit
Drive circuit
Overdischarge timer
Overcurrent timer
C3
0.1µ
F
Overcharge
detection
C1
0.1µF
Control
circuit
Charger voltage
detection
Overdischarge
detection
Reference
Bias circuit
V-
Discharge current
Charge current
detection
Ridt
2.7k
Discharge
MOS-FET
Charge
MOS-FET
S1
(GND)
S2
Pack-
D
C2
0.1µF
• The resistors that are inserted into each pin are to protect the IC. They help to remove ESD and latch-up
damages.
• The capacitors help to reduce the effects of transient variations in voltage and electromagnetic waves,
and to improve ESD tolerance of the IC.
Please use either C2 or C3, or both of them by request of your application.
• These values in the above figure are for example. Please choose appropriate values.
• 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.
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