LP3910 Datasheet, PDF (15/72 Pages) Texas Instruments – Power Management IC for Hard-Drive-Based Portable Media Players

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LP3910
SNVS481M – NOVEMBER 2006 – REVISED DECEMBER 2015
7.20 USB Timing Requirements
Nominal limits apply for T_J = 25°C; minimum and maximum limits apply for T_J = 0°C to 125°C, unless otherwise specified.
MIN
NOM
MAX UNIT
T_{CHG_IN}
T_USB
T_{PQ_FULL}
T_{FULL_PQ}
T_BATTLOWF
T_BATTLOWR
T_BATTEMP
T_{ONOFF_F}
T_{ONOFF_R}
T_RESTART
T_CCCV
T_CVEOC
T_POWERACK
T_TSHD
T_TOPOFF
T_10HR
T_1HR
Deglitch adapter insertion
Deglitch USB power insertion
Deglitch time for pre-qualification to full-rate charge transition
Deglitch time for full-rate to pre-qualification transition
Deglitch time for V_BATT falling below V_BATTLOW threshold
Deglitch time for V_BATT rising above V_BATTLOW threshold
Deglitch time for recovery from battery temperature fault
Deglitching on falling edge of ONOFF pin
Deglitching on rising edge of ONOFF pin
Deglitching on falling V_BATT crossing V_RESTART
Deglitching of CC→CV charging transition
Deglitching of CV→EOC (End of Charge)
Deglitching of POWERACK pin
Deglitching of thermal shutdown
Topoff timer
10-hour safety timer
1-hour prequalification safety timer
28
32
36
ms
28
32
36
ms
8
10
12
ms
8
10
12
ms
4
5
6
ms
4
5
6
ms
8
10
12
ms
28
32
36
ms
28
32
36
ms
8
10
12
ms
8
10
12
ms
8
10
12
ms
4
5
6
ms
2
ms
17
21
25
min
9
10
11 hours
0.9
1
1.1 hour
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