BQ28550-R1 Datasheet, PDF (6/42 Pages) Texas Instruments – Single Cell Li-Ion Battery Gas Gauge

Not Recommended for New Designs
bq28550-R1
SLUSAS4A – OCTOBER 2012 – REVISED SEPTEMBER 2014
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Electrical Characteristics: Battery Protection (continued)
T_A = –40 to +85ºC, V_BAT =1.5 V to 5.5 V; Typical values stated, where T_A = 25ºC and V_BAT =3.6 V (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
V_OL2
DOUT Low Level Output
voltage (referenced to
Vss)
I_OL = 30 µA, V_BAT = 2.0 V
0.2
0.5
V
V_OH2
DOUT High Level Output
voltage (referenced to
Vss)
I_OH = 30 µA, V_BAT = 4.0 V
3.4
3.7
V
V_DET1
V_REL1
t_DET1
Overcharge detection
Overcharge release
voltage
Overcharge detection
delay time
T_A = 25°C detection voltage
T_A = –10 to 60°C
T_A = –40 to 85°C
T_A = 25°C
T_A = –10 to 60°C
T_A = –40 to 85°C
V_BAT = 3.5 V ≥ 4.5 V
4.230
4.250
4.270
4.225
4.250
4.275
V
4.200
4.250
4.300
4.040
4.070
4.100
4.025
4.070
4.115
V
4.010
4.070
4.130
0.60
1.00
1.50
s
t_REL1
Overcharge release
delay time
V_BAT = 4.5 V ≥ 3.5 V
4.8
8.0
12.0
ms
V_DET2
TA = 25°C
Over-discharge detection
voltage
TA = –10 to 60°C
TA = –40 to 85°C
2.265
2.300
2.335
2.242
2.300
2.358
V
2.220
2.300
2.380
t_DET2
Over-discharge detection
delay time
V_BAT = 3.5 V ≥ 2.00 V
14.4
24.0
36.0
ms
t_REL2
Over-discharge release V_BAT = 3 V
delay time
V_ = 3 V ≥ 0 V
2.4
4.0
6.0
ms
V_DET3
Overcurrent detection
voltage on discharge
V_BAT = 4 V
0.130
0.150
0.170
V
V_DET4
Overcurrent detection
voltage on charging
V_BAT = 4 V
–0.137
–0.112
–0.087
V
t_OCD
Overcurrent detection
delay time
V_BAT = 3 V
V_ = 0 V ≥ 1 V
7.2
12.0
18.0
ms
t_OCR
Overcurrent release
delay time
V_BAT = 3 V
V_ = 3 V ≥ 0 V
2.4
4.0
6.0
ms
V_SHORT
t_SHORT
Short detection voltage
Short detection delay
time
V_BAT = 4 V, R_PACKN = 510 Ω
V_BAT = 3 V
V_ = 0V ≥ 3 V
V_BAT – 1.2 V_BAT – 0.9 V_BAT – 0.6
V
200
400
800
µs
6.6 Electrical Characteristics: Voltage Regulator
T_A = –40 to +85ºC, V_BAT =1.5 V to 5.5 V; Typical values stated, where T_A = 25ºC and V_BAT =3.6 V (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
V_REG
ΔV_LINE
ΔV_LOAD
VDO
ΔV_REG/ΔT
Output voltage
Line regulation
Load regulation
Dropout voltage
Output voltage
temperature coefficient
2.7 V < V_BAT < 5.5 V, I_OUT = 16 mA
2.45 V < V_BAT < 2.7 V, I_OUT = 3 mA
2.7 V< V_BAT < 5.5 V, I_OUT = 16 mA
V_REG = 2.45 V, 100 µA < I_OUT < 3 mA
V_BAT = 2.7 V, 3 mA < I_OUT < 16 mA
V_BAT = 2.45 V, I_OUT = 3 mA
V_BAT = 2.7 V, I_OUT = 16 mA
V_BAT = 3.5 V, I_OUT = 100 µA
2.45
2.50
2.55
V
2.40
100
200
mV
30
50
mV
30
50
30
50
mV
224
290
100
ppm/°C
ΔV_LINE
V_OFF
Current limit
Regulator off voltage
V_BAT = 3.5 V, I_REG = 2.0 V
V_BAT = 3.5 V, I_REG = 0 V
16
130
mA
10
35
60
7.0
8.0
9.0
V
6
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