MITSMI PST75XX Datasheet
MITSUMI
Protection of Lithium-Ion Batteries (for Double-Protect) PST7XXX
Outline
This IC is used for double-protection of lithium-ion batteries with one cell. Some models can also be used for
pulse charging.
Features
1. Detection voltage accuracy (Ta=25°C) ±15 mV/±30 mV
2. Circuit current while on 30µA typ.
3. Circuit current while off (Vcc at or below detection voltage) 4µA typ.
4. Circuit current while off (Vcc=2.000V) 1µA typ.
5. Output current while on
-
100µA max.
6. Delay time (Ctc=0.015µF) 200 ms typ.
Package
SOT-25
Applications
Pin Assignment
Block Diagram
IC for double-protection of lithium-ion batteries with one cell.
123
54
SOT-25
Protection of Lithium-Ion Batteries (for Double-Protect)
Monolithic IC PST7XXX
MITSUMI
1 GND
2 SUB
3 TC
4 V
OUT
5 VCC
Note 2 : The Pin 2 this product is SUB, so connect the pin to Ground.
MITSUMI
Protection of Lithium-Ion Batteries (for Double-Protect) PST7XXX
Absolute Maximum Ratings
(Ta=25°C)
MITSUMI
Pin Description
Recommended Operating Conditions
Electrical Characteristics
(Except where noted otherwise, Ta=25°C)
Pin No. Pin Name Functions
1 GND GND pin
2 SUB SUB pin
3 TC Delay time establish pin
4 V
OUT Reset signal output pin
5 V
CC VCC pin / detection voltage pin
Item Symbol Ratings Unit
Storage temperature T
STG
-
40~+125 °C
Operating temperature T
OPR
-
25~+75 °C
Supply voltage V
CC max.
-
0.3~+12 V
Allowable loss Pd 150 mW
Item Symbol Ratings Unit
Operating temperature T
OPR
-
25~+75 °C
Operating voltage V
OP 0~+12 V
Item Symbol
Measurement
Measurement conditions Min. Typ. Max. Unit
circuit
Detection voltage V
SD 1VCC=L H RL=100kΩ 4.120 4.135 4.150 V
Release voltage V
SR 1VCC=L H L RL=100kΩ 4.100 4.125 4.145 V
Hysteresis voltage Vs Vs=V
SD
-
VSR 51020mV
Detection voltage
Vs/ T 1
R
L
=100kΩ Ta=
-
25~+75
°C ±0.01 %/°C
temperature coefficient
High-level output voltage V
OH 1VCC=4.20V RL=100kΩ 3.800 4.150 V
Output leakage current I
OL 1VCC=4.020V ±0.1 µA
Circuit current at on time I
CCH 1VCC=4.20V RL=∞ 30 50 µA
Circuit current at off time 1 I
CCL11 VCC=4.02V RL=∞ 46µA
Circuit current at off time 2 I
CCL21 VCC=2.000V RL=∞ 1 1.5 µA
Delay time t
PLH
*
2RL=100kΩ CTC=0.015µF 140 200 260 mS
"L" transmission delay time t
PHL
*
2RL=100kΩ CTC=0.015µF 1.1 3.5 mS
Output current at ON time I
OH 1VCC=4.200V RL=0Ω
-
100 µA
Note : tPLH : VCC=3.870V 4.370V
tPHL : VCC=4.370V 3.870V
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