BQ294602 Datasheet, PDF (5/17 Pages) Texas Instruments – Single-Cell Protector for Li-Ion Batteries

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bq294602, bq294604
SLUSAS0B – DECEMBER 2011 – REVISED MARCH 2012
DC 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
#
Symbol
Parameter
Condition
Min
Typ
Max Unit
Voltage Protection Threshold VCx
1.0
bq294602, fixed delay 4 s, V1 > V_OV
1.1
V_(PROTECT) –
bq294604, fixed delay 6.5 s, V1 > V_OV
1.2
V_OV
Overvoltage
bq294622, fixed delay 4 s, V1 > V_OV(1)
1.3
Detection
bq294624, fixed delay 6.5 s, V1 > V_OV ⁽¹⁾
1.4
bq294682, fixed delay 4 s, V1 > V_OV ⁽¹⁾
1.5
bq294684, fixed delay 6.5 s, V1 > V_OV ⁽¹⁾
Overvoltage
1.6
V_HYS
Detection
Hysteresis
4.35
V
4.35
V
4.45
V
4.45
V
4.225
V
4.225
V
250
300
400
V
1.7
V_OA
OV Detection
Accuracy
T_A = 25°C
–10
10
mV
OV Detection
1.8
V_{OA –DRIFT} Accuracy due to
Temperature
Supp ly and Leakage Current
T_A = –40°C
T_A = 0°C
T_A = 60°C
T_A = 110°C
–40
44
mV
–20
20
mV
–24
24
mV
–54
54
mV
1.9
I_CC
1.10
I_IN
Output Drive OUT
Supply Current
Input Current at
V1 Pins
(V1–VSS) = 4.0 V (See Figure 9 for reference)
(V1–VSS) = 2.8 V with T_A = –40°C to 60°C
Measured at V1 = 4.0 V
(V1–VSS) = 4.0 V
T_A = 0°C to 60°C (See Figure 9 for reference.)
1
2
µA
1.25
–0.1
0.1
µA
1.11
1.12
1.13
1.14
V_OUT
I_OUT(Short)
Output Drive
Voltage
OUT Short
Circuit Current
(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
3.0 V_DD - 0.3
V
250
400
mV
1.5
3.0
mA
1.15
t_R
Output Rise
Time
CL = 1 nF, V_OH(OUT) = 0 V to 5 V⁽²⁾
5
µs
1.16
Z_O
Output
Impedance
2
5
kΩ
Fixed Delay Timer
1.17
t_DELAY
Fault Detection ^{Fixed Delay, bq2946x2}
Delay 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
(1) Product Preview only
(2) Specified by design. Not 100% tested in production.
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