LTC3577_15 Datasheet, PDF (9/54 Pages) Linear Technology – Highly Integrated 6-Channel Portable PMIC

LTC3577/LTC3577-1
ELECTRICAL CHARACTERISTICS Pushbutton Controller. The l denotes the specifications which apply
over the full operating temperature range, otherwise specifications are at T_A = 25°C. V_OUT = 3.8V, unless otherwise noted.
SYMBOL
PARAMETER
Pushbutton Pin (ON)
CONDITIONS
MIN
TYP
MAX UNITS
V_OUT
Pushbutton Operating Supply Range (Note 9)
l 2.7
5.5
V
V_OUT UVLO
V_{ON_TH}
V_OUT Falling
V_OUT Rising
ON Threshold Rising
ON Threshold Falling
Pushbutton is Disabled Below V_OUT UVLO
2.5
2.7
V
2.8
2.9
V
0.8
1.2
V
0.4
0.7
V
I_ON
ON Input Current
V_ON = V_OUT
V_ON = 0V
–1
1
μA
–4
–9
–14
μA
Power-On Input Pin (PWR_ON)
V_{PWR_ON}
PWR_ON Threshold Rising
PWR_ON Threshold Falling
0.8
1.2
V
0.4
0.7
V
I_{PWR_ON}
PWR_ON Input Current
Status Output Pins (PBSTAT, WAKE, PG_DCDC)
V_{PWR_ON} = 3V
–1
1
μA
I_PBSTAT
PBSTAT Output High Leakage Current
V_PBSTAT
PBSTAT Output Low Voltage
I_WAKE
Wake Output High Leakage Current
V_WAKE
Wake Low Output Voltage
I_{PG_DCDC}
PG_DCDC Output High Leakage Current
V_{PG_DCDC}
PG_DCDC Output Low Voltage
V_{THPG_DCDC} PG_DCDC Threshold Voltage
Pushbutton Timing Parameters
t_{ON_PBSTAT1}
t_{ON_PBSTAT2}
t_{ON_WAKE}
t_{ON_HR}
ON Low Time to PBSTAT Low
ON High to PBSTAT High
ON Low Time to WAKE High
ON Low to Hard Reset
t_{PBSTAT_PW} PBSTAT Minimum Pulse Width
t_{WAKE_EXTP} WAKE High from USB or Wall Present
t_{WAKE_DCDC} WAKE High to Buck1 Enable
t_{PWR_ONH}
PWR_ON High to WAKE High
t_{PWR_ONL}
PWR_ON Low to WAKE Low
t_{PWR_ONBK1} PWR_ON Power-Up Blanking
t_{PWR_ONBK2} PWR_ON Power-Down Blanking
t_{PG_DCDCH}
Bucks in Regulation to PG_DCDC High
t_{PG_DCDCL}
Bucks Disabled to PG_DCDC Low
V_PBSTAT = 3V
I_PBSTAT = 3mA
V_WAKE = 3V
I_WAKE = 3mA
V_{PG_DCDC} = 3V
I_{PG_DCDC} = 3mA
(Note 13)
WAKE High
PBSTAT Low > t_{PBSTAT_PW}
WAKE Low > t_{PWR_ONBK2}
Hard Reset = All Supplies Disabled
WAKE Low > t_{PWR_ONBK2}
WAKE Low > t_{PWR_ONBK2}
WAKE Low > t_{PWR_ONBK2}
WAKE High > t_{PWR_ONBK1}
WAKE Rising Until PWR_ON Low Recognized
WAKE Falling Until PWR_ON High Recognized
All Bucks Within PG_DCDC Threshold Voltage
All Bucks Disabled
–1
1
μA
0.1
0.4
V
–1
1
μA
0.1
0.4
V
–1
1
μA
0.1
0.4
V
–8
%
50
ms
900
μs
400
ms
4.2
5
5.8 Seconds
40
50
60
ms
100
ms
5
μs
50
ms
50
ms
5
Seconds
1
Seconds
230
ms
44
μs
3577fa
9