BQ3050 Datasheet, PDF (9/28 Pages) Texas Instruments – 2-Series, 3-Series, and 4-Series Li-Ion Battery Pack Manager

bq3050
www.ti.com
SLUSA92A – JANUARY 2011 – REVISED JUNE 2011
ELECTRICAL CHARACTERISTICS: CHG, DSG FET Drive (continued)
Typical values stated where TA = 25ºC and VCC = 14.4 V, Min/Max values stated where T_A= –40ºC to 85ºC and VCC = 3.8 V
to 25 V (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
t_r
Rise time
t_f
Fall time
C_L= 4700 pF
R_G= 5.1 kΩ
VCC < 8.4
V_DSG: V_BAT to V_BAT + 4 V
V_CHG: V_PACK to V_PACK + 4 V
C_L = 4700 pF
R_G = 5.1 kΩ
VCC > 8.4
V_DSG: V_BAT to V_BAT + 4 V
V_CHG: V_PACK to V_PACK + 4 V
C_L= 4700 pF
R_G= 5.1 kΩ
V_DSG: V_BAT + V_O(FETONDSG) to V_BAT
+1V
V_CHG: V_PACK + V_O(FETONCHG) to
V_PACK + 1 V
800
1400
μs
200
500
μs
80
200
μs
ELECTRICAL CHARACTERISTICS: INTERNAL PRE-CHARGE LIMITING
Typical values stated where TA = 25ºC and VCC = 14.4 V, Min/Max values stated where T_A= –40ºC to 85ºC and VCC = 3.8 V
to 25 V (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
I_PCHGMAX Maximum Pre-charge current
R_{PCHG_RDS Internal Pre-charge FET RDSON}
ON
3-cell and 4-cell configuration
V_DS(PRECHG) ≥ 1 V, VCC < 8.4 V
V_DS(PRECHG) ≥ 1 V, VCC ≥ 8.4 V
100
mA
30
55
85
Ω
15
30
55
Ω
ELECTRICAL CHARACTERISTICS: GPOD
Typical values stated where TA = 25ºC and VCC = 14.4 V, Min/Max values stated where T_A= –40ºC to 85ºC and VCC = 3.8 V
to 25 V (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
V_{PU_GPOD} GPOD Pull-Up Voltage
V_{OL_GPOD} GPOD Output Voltage Low
I_OL = 1 mA
V_CC
V
0.3
V
ELECTRICAL CHARACTERISTICS: FUSE
Typical values stated where TA = 25ºC and VCC = 14.4 V, Min/Max values stated where T_A= –40ºC to 85ºC and VCC = 3.8 V
to 25 V (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
V_OH(FUSE) High Level FUSE Output
VCC = 3.8 V to 9 V
VCC = 9 V to 25 V
2.4
8.5
V
7
8
9
V
V_IH(FUSE) Weak pull-up current in off state⁽¹⁾
2.8
V
100
nA
t_R(FUSE)
Z_O(FUSE)
FUSE Output Rise Time
FUSE Output Impedance
C_L = 1 nF, VCC = 9 V to 25 V,
V_OH(FUSE) = 0 V to 5 V
5
20
μs
2
5
kΩ
(1) Verified by design. Not production tested.
Copyright © 2011, Texas Instruments Incorporated
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