BQ3060 Datasheet, PDF (9/17 Pages) Texas Instruments – SBS 1.1-COMPLIANT GAS GAUGE and PROTECTION with CEDV

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SLUS928A – MARCH 2009 – REVISED NOVEMBER 2009
CURRENT PROTECTION TIMING
PARAMETER
t_(OCDD)
t_{(OCDD_STEP)}
Overcurrent in discharge delay
OCDD step options
t_(SCDD)
Short circuit in discharge delay
t_{(SCDD_STEP)}
t_(SCCD)
t_{(SCCD_STEP)}
t_(DETECT)
t_ACC
SCDD step options
Short circuit in charge delay
SCCD step options
Current fault detect time
Overcurrent and short circuit
delay time accuracy
TEST CONDITIONS
AFE.STATE_CNTL[SCDDx2] = 0
AFE.STATE_CNTL[SCDDx2] = 1
AFE.STATE_CNTL[SCDDx2] = 0
AFE.STATE_CNTL[SCDDx2] = 1
V_SRP-SRN = V_THRESH + 12.5 mV,
T_A = –40°C to 85°C
Accuracy of typical delay time with WDI active
Accuracy of typical delay time with no WDI
input
MIN
1
0
0
0
–20%
–50%
TYP MAX UNIT
31 ms
2
ms
915
μs
1830
61
μs
122
915 μs
61
μs
35
160 μs
20%
50%
P-CH FET DRIVE
PARAMETER
TEST CONDITIONS
MIN TYP
V_O(FETON)
V_O(FETOFF)
t_r
t_f
Output voltage, charge
and discharge FETs on
Output voltage, charge
and discharge FETs off
Rise time
Fall time
V_O(FETONDSG) = V_(BAT)–V_(DSG), R_GS = 1MΩ,
T_A = –40°C to 110°C, BAT = 20 V⁽¹⁾
V_O(FETONCHG) = V_(PACK)–V_(CHG), R_GS =1MΩ,
T_A = –40°C to 110°C, PACK = 20 V⁽¹⁾
V_O(FETOFFDSG) = V_(BAT)–V_(DSG),
T_A = –40°C to 110°C, BAT = 16 V
V_O(FETOFFCHG) = V_(PACK)–V_(CHG),
T_A = –40°C to 110°C, PACK = 16 V
C_L = 4700 pF
V_DSG: 10% to 90%
V_CHG: 10% to 90%
C_L = 4700 pF
V_DSG : 90% to 10%
V_CHG: 90% to 10%
12
15
12
15
70
70
70
70
(1) For a VBAT or VPACK input range of 3.8 V to 25 V, MIN V_O(FETON) voltage is 12V or V_(BAT)–1V, whichever is less.
MAX
18
UNIT
V
18
0.2 V
0.2
200
μs
200
200
μs
200
PRE-CHARGE/ZVCHG FET DRIVE
PARAMETER
TEST CONDITIONS
MIN TYP
MAX
V_(PreCHGON)
V_O(PreCHGON) = V_(PACK)–V_(ZVCHG),
pre-charge FET on⁽¹⁾
R_GS =1 MΩ, T_A = –40°C to 110°C
12
15
18
V_(PreCHGOFF)
Output voltage, pre-charge FET
off ⁽¹⁾
R_GS =1 MΩ, T_A = –40°C to 110°C
VBAT–0.5
t_r
Rise time
t_f
Fall time
C_L = 4700 pF,
R_G = 5.1 kΩ
C_L = 4700 pF,
R_G = 5.1 kΩ
V_ZVCHG: 10% to 90%
V_ZVCHG : 90% to 10%
80
200
1.7
(1) For a VBAT or VPACK input range of 3.8 V to 25 V, MIN V_(PreCHGON) voltage is 12 V or V_(BAT)–1V, whichever is less.
UNIT
V
V
μs
ms
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