BQ294602_17 Datasheet, PDF (5/21 Pages) Texas Instruments – Single-Cell Protector for Li-Ion Batteries

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bq294602, bq294604, bq294682, bq294624
SLUSAS0D – DECEMBER 2011 – REVISED APRIL 2017
7.5 Electrical Characteristics
Typical values stated where T_A = 25°C and VDD = 4 V, MIN/MAX values stated where T_A = –40°C to +110°C and V_DD = 4 V
(unless otherwise noted)
TEST NO.
PARAMETER
TEST CONDITIONS
MIN
TYP MAX UNIT
VOLTAGE PROTECTION THRESHOLD VCx
1.0
bq294602, fixed delay 4 s, V1 > V_OV
4.35
1.1
1.2
1.3
V_OV
V_(PROTECT) –
Overvoltage Detection
bq294604, fixed delay 6.5 s, V1 > V_OV
bq294622, fixed delay 4 s, V1 > V_OV(1)
bq294624, fixed delay 6.5 s, V1 > V_OV
4.35
4.45
V
4.45
1.4
bq294682, fixed delay 4 s, V1 > V_OV
4.225
1.5
bq294684, fixed delay 6.5 s, V1 > V_OV ⁽¹⁾
4.225
1.6
V_HYS
Overvoltage Detection
Hysteresis
250
300
400
V
1.7
V_OA
OV Detection Accuracy
1.8
V_{OA –DRIFT}
OV Detection Accuracy
due to Temperature
SUPPLY AND LEAKAGE CURRENT
T_A = 25°C
T_A = –40°C
T_A = 0°C
T_A = 60°C
T_A = 110°C
–10
10 mV
–40
44
–20
–24
20
24
mV
–54
54
1.9
I_CC
1.10
I_IN
Supply Current
(V1–VSS) = 4.0 V (see Figure 7 for
reference)
(V1–VSS) = 2.8 V with T_A = –40°C to +60°C
Measured at V1 = 4.0 V
Input Current at V1
Pins
(V1–VSS) = 4.0 V
T_A = 0°C to 60°C (see Figure 7 for
–0.1
reference)
1
2
µA
1.25
0.1 µA
OUTPUT DRIVE OUT
1.11
1.12
1.13
V_OUT
1.14
I_OUT(Short)
1.15
t_R
1.16
Z_O
FIXED DELAY TIMER
Output Drive Voltage
OUT Short Circuit
Current
Output Rise Time
Output Impedance
(V1–VSS) > V_OV
V_DD = V1, I_OH = 100 µA, T_A = –40°C to
+110°C
(V1–VSS) < V_OV, I_OL = 100 µA, T_A = 25°C
T_A = –40°C to +110°C
OUT = 0 V, (V1–VSS) > V_OV
CL = 1 nF, V_OH(OUT) = 0 V to 5 V⁽²⁾
3 V_DD – 0.3
250
1.5
5
2
V
400 mV
3 mA
µs
5 kΩ
1.17
t_DELAY
Fault Detection Delay ^{Fixed Delay, bq2946x2}
Time
Fixed Delay, bq2946x4
3.2
4
4.8
s
5.2
6.5
7.8
1.18
t_{DELAY_CTM}
Fault Detection Delay
Time in Test Mode
Fixed Delay (Internal settings)
15
ms
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(2) Specified by design. Not 100% tested in production.
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