X80000 Datasheet, PDF (30/37 Pages) Intersil Corporation – Smart Power Plug Penta-Power Sequence Controller with Hot Swap

X80000, X80001
TABLE 17. HARDWARE/SOFTWARE CONTROL AND FAULT DETECTION BITS SUMMARY
LOCATION(S)
SYMBOL _{REGISTER BITS}
SOFTWARE CONTROL BITS
CONTROL FUNCTION/
STATUS INDICATION
DESCRIPTION
F0
CR4
5:4
Insertion Current Filter F1=0, F0=0 ; t_NF = 0
F1
F1=0, F0=1 ; t_NF = 5µs
F1=1, F0=0 ; t_NF = 10µs
F1=1, F0=1 ; t_NF = 20µs
IG0
CR2
7:4
Gate Current Select See Table 10.
IG1
IG2
IG3
NR0
NR1
NR2
CR1
2:0 Retry Sequence Options See Table 6.
T1D0
T1D1
T2D0
T2D1
CR3
CR3
1:0
V1GOOD Time Delay TiD1=0, TiD0=0 : ViGOOD delay = 100ms
TiD1=0, TiD0=1 : ViGOOD delay = 500ms
TiD1=1, TiD0=0 : ViGOOD delay = 1s
3:2
V2GOOD Time Delay _{TiD1=1, TiD0=1 : ViGOOD delay = 5s}
T3D0
T3D1
CR3
5:4
V3GOOD Time Delay
T4D0
T4D1
CR3
7:6
V4GOOD Time Delay
TPOR0
TPOR1
CR2
3:2
RESET delay time
TPOR1=0, TPOR0=0 : RESET delay = 100ms
TPOR1=0, TPOR0=1 : RESET delay = 500ms
TPOR1=1, TPOR0=0 : RESET delay = 1s
TPOR1=1, TPOR0=1 : RESET delay = 5s
TSC0
TSC1
VS0
VS1
CR2
CR4
1:0
Overcurrent Retry Delay TSC1=0, TSC0=0 ; t_{SC_RETRY} = 100ms
Time
TSC1=0, TSC0=1 ; t_{SC_RETRY} = 500ms
TSC1=1, TSC0=0 ; t_{SC_RETRY} = 1s
TSC1=1, TSC0=1 ; t_{SC_RETRY} = 5s
7:6 Insertion Overcurrent Limit VS1=0, VS0=0 ; Insertion Overcurrent Limit = 1X
VS1=0, VS0=1 ; Insertion Overcurrent Limit = 2X
VS1=1, VS0=0 ; Insertion Overcurrent Limit = 3X
VS1=1, VS0=1 ; Insertion Overcurrent Limit = 4X
WEL
CR0
7
Write Enable
WEL = 1 enables write operations to the control registers and EEPROM.
WEL = 0 prevents write operations.
WPEN
CR1
7
Write Protect
WPEN = 1 (and WP pin HIGH) prevents writes to the control registers and the
EEPROM.
BP1
CR1
4:3
EEPROM Block Protect BP1=0, BP0=0 : No EEPROM memory protected.
BP0
BP1=0, BP0=1 : Upper 1/4 of EEPROM memory protected
BP1=1, BP0=0 : Upper 1/2 of EEPROM memory protected.
BP1=1, BP0=1 : All of EEPROM memory protected.
HARDWARE SELECT BITS
IGQ0
IGQ1
Input pins
BATTON Input pin
Gate Current Select
Main or Battery
IGQ1=0, IGQ0=0 : I_GATE = set by IG0-IG3
IGQ1=0, IGQ0=1 : I_GATE = 10µA
IGQ1=1, IGQ0=0 : I_GATE = 70µA
IGQ1=1, IGQ0=1 : I_GATE = 150µA
BATTON = 0 ; Undervoltage Threshold = V_UV1
BATTON = 1 ; Undervoltage Threshold = V_UV2
30
FN8148.0
March 18, 2005