BQ29200 Datasheet, PDF (4/15 Pages) Texas Instruments – Voltage Protection with Automatic Cell Balance for 2-Series Cell Li-Ion Batteries

bq29200
bq29209
SLUSA52 – JUNE 2010
www.ti.com
ELECTRICAL CHARACTERISTICS
Typical values stated where T_A = 25°C and VDD = 7.2 V.
Min/Max values stated where T_A = –40°C to 110°C and VDD = 4 V to 10 V (unless otherwise noted).
PARAMETER
TEST CONDITION
MIN NOM MAX
V_PROTECT
Overvoltage bq29209
detection
voltage
bq29200
4.30
4.35
V_HYS
Overvoltage detection
hysteresis
200 300 400
V_OA
Overvoltage detection
accuracy
T_A = 25°C
–10
10
V_{OA_DRIFT}
x_DELAY
Overvoltage threshold
temperature drift
Overvoltage delay time
scale factor
T_A = 0°C to 60°C
T_A = –40°C to 110°C
T_A = 0°C to 60°C
Note: Does not include external capacitor variation.
T_A = –40°C to 110°C
Note: Does not include external capacitor variation.
–0.4
0.4
–0.6
0.6
5.5 8.0 11.0
5.0 8.0 12.5
Overvoltage delay time
x_{DELAY_CTM} ⁽¹⁾ scale factor in Customer
Test Mode
0.08
I_CD(CHG)
Overvoltage detection
charging current
150
I_CD(DSG)
Overvoltage detection
discharging current
60
Overvoltage detection
V_CD
external capacitor
1.2
comparator threshold
I_CC
V_OUT
I_OH
I_OL
I_{OH_ZV}
Supply current
(VC2–VC1) = (VC1–GND) = 3.5 V (See Figure 1)
OUT pin drive voltage
High-level output current
Low-level output current
High-level short-circuit
output current
(VC2–VC1) = (VC1–GND) = V_PROTECTMAX,
V_DD = VC2, I_OH = 0
VC2 = VC1 = V_PROTECTMAX, V_DD = VC2,
I_OH = –100 µA, T_A = 0°C to 60°C
(VC2–VC1) and (VC1–GND) < V_PROTECT,
I_OL = 100 µA, T_A = 25°C
(VC2–VC1) and (VC1–GND) < V_PROTECT,
I_OL = 0 µA, T_A = 25°C
VC2 = VC1 = V_DD = 4 V, I_OL = 100 µA
(VC2–VC1) or (VC1–GND) > V_PROTECT,
V_DD = 4 V to 10 V, I_OH = –100 µA
T_A = –40°C to 60°C
(VC2–VC1) or (VC1–GND) > V_PROTECT,
V_DD = 5 V to 10 V, I_OH = –100 µA
T_A = 60°C to 110°C
OUT = 2 V, (VC2–VC1) = (VC1–GND) = V_PROTECTMAX, V_DD =
4 V to 10 V, T_A = –40°C to 60°C
OUT = 2 V, (VC2–VC1) = (VC1–GND) = V_PROTECTMAX, V_DD =
5 V to 10 V, T_A = 60°C to 110°C
OUT = 0.05 V, (VC2–VC1) = (VC1–GND) = 3.5 V,
V_DD = VC2
OUT = 0V (VC2–VC1) = (VC1–GND) = V_PROTECTMAX V_DD = 4
to 10 V
6
2
2
–100
30
3.0
8.25
2.5
0
6.0
9.5
3
200
10
200
85
–8.0
I_IN
V_{MM_DET_ON}
Measured at VC1, (VC2–VC1) = (VC1–GND) = 3.5 V,
Input current at VCx pins ^{TA = 0°C to 60°C (See Figure 1)}
Measured at VC2, (VC2–VC1) = (VC1–GND) = 3.5 V
T_A = 0°C to 60°C (See Figure 1)
Cell mismatch detection (VC2–VC1) versus (VC1–GND) and vice-versa when cell
threshold for turning ON balancing is enabled
–0.2
0.2
2.5
17 30 45
UNIT
V
mV
mV
mV°/C
s/µF
s/mF
nA
µA
V
µA
V
V
mV
mV
mV
V
µA
mA
mA
µA
µA
mV
(1) Specified by design. Not 100% tested in production.
4
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