SDS

NIU-48N7A0
（
K14875
）
Specification
Security Level
Internal public
File No.
PGG003436
Version
V1.6
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of Total
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discharge
overcurrent is the
same as that of
discharge
overcurrent
protection.
Discharge
overcurrent
protection
Protection current
A
23
25
27
When discharge
overcurrent
protected three
times in a row，
need remove the
load.
Delay time
s
4
5
8
Recovery
s
Delay 30s or charge or remove load
Discharge
overcurrent
protection
Protection current
A
43
45
47
Delay time
s
0.5
1
2
Recovery
Remove load
Short-circuit
protection
Protection current
A
-
90
-
Delay time
us
50
150
400
Recovery
Remove load
Cells balance
temperature
protection
Protection temperature
℃
75
80
85
Delay time
s
3
5
7
Recovery temperature
℃
45
50
55
Pre-discharge
Opening conditions
：
1. Main discharge MOS off.
2. BMS is not in short circuit state or undervoltage state.
Closing conditions
：
1. Main discharge MOS on.
2. BMS is in short circuit state or undervoltage state.
3.
In Pre-discharge state:pre-discharge current ＞100mA
&
Delay
＞
20s or
pre-discharge current＞2
00mA & Delay
＞
5s
，
Recovery time
：
30s.
4.
Limit current resistance temperature＞
80℃
。
Cells balance
Opening conditions：
1. Voltage＞3.8V.
2. On charging state or resting state.
3. 0.5V＞Cells differential＞50mV.
Closing conditions（Any）：
1、Discharging state or fault state。
2、Cells differential＜20mV or cells differential＞0.5V.
3、Cell voltage＜3.8V.
4、Cells balance temperature＞80℃。
About
temperat
Discharge high
temperature
Alarm temperature
℃
62
65
68
Delay time
s
3
5
7