Datasheet

bq3060
www.ti.com SLUS928A –MARCH 2009–REVISED NOVEMBER 2009
CURRENT PROTECTION TIMING
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
t
(OCDD)
Overcurrent in discharge delay 1 31 ms
t
(OCDD_STEP)
OCDD step options 2 ms
AFE.STATE_CNTL[SCDDx2] = 0 0 915
t
(SCDD)
Short circuit in discharge delay μs
AFE.STATE_CNTL[SCDDx2] = 1 0 1830
AFE.STATE_CNTL[SCDDx2] = 0 61
t
(SCDD_STEP)
SCDD step options μs
AFE.STATE_CNTL[SCDDx2] = 1 122
t
(SCCD)
Short circuit in charge delay 0 915 μs
t
(SCCD_STEP)
SCCD step options 61 μs
V
SRP-SRN
= V
THRESH
+ 12.5 mV,
t
(DETECT)
Current fault detect time 35 160 μs
T
A
= –40°C to 85°C
Accuracy of typical delay time with WDI active –20% 20%
Overcurrent and short circuit
t
ACC
Accuracy of typical delay time with no WDI
delay time accuracy
–50% 50%
input
P-CH FET DRIVE
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
V
O(FETONDSG)
= V
(BAT)
–V
(DSG)
, R
GS
= 1MΩ,
12 15 18 V
T
A
= –40°C to 110°C, BAT = 20 V
(1)
Output voltage, charge
V
O(FETON)
and discharge FETs on
V
O(FETONCHG)
= V
(PACK)
–V
(CHG)
, R
GS
=1MΩ,
12 15 18
T
A
= –40°C to 110°C, PACK = 20 V
(1)
V
O(FETOFFDSG)
= V
(BAT)
–V
(DSG)
,
0.2 V
T
A
= –40°C to 110°C, BAT = 16 V
Output voltage, charge
V
O(FETOFF)
and discharge FETs off
V
O(FETOFFCHG)
= V
(PACK)
–V
(CHG)
,
0.2
T
A
= –40°C to 110°C, PACK = 16 V
V
DSG
: 10% to 90% 70 200
t
r
Rise time C
L
= 4700 pF μs
V
CHG
: 10% to 90% 70 200
V
DSG
: 90% to 10% 70 200
t
f
Fall time C
L
= 4700 pF μs
V
CHG
: 90% to 10% 70 200
(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.
PRE-CHARGE/ZVCHG FET DRIVE
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
V
O(PreCHGON)
= V
(PACK)
–V
(ZVCHG)
,
V
(PreCHGON)
R
GS
=1 MΩ, T
A
= –40°C to 110°C 12 15 18 V
pre-charge FET on
(1)
Output voltage, pre-charge FET
V
(PreCHGOFF)
R
GS
=1 MΩ, T
A
= –40°C to 110°C VBAT–0.5 V
off
(1)
C
L
= 4700 pF,
t
r
Rise time V
ZVCHG
: 10% to 90% 80 200 μs
R
G
= 5.1 kΩ
C
L
= 4700 pF,
t
f
Fall time V
ZVCHG
: 90% to 10% 1.7 ms
R
G
= 5.1 kΩ
(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.
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