ISL6112 Datasheet, PDF (7/31 Pages) Intersil Corporation – Dual Slot PCI-Express Power Controller

ISL6112
Electrical Specifications 12VIN = 12V, 3VIN = 3.3V, VSTBY = 3.3V, T_A = T_J = -40°C to +85°C, Unless Otherwise Noted. (Continued)
PARAMETER
SYMBOL
CONDITION
MIN
TYP
MAX UNITS
CFILTER OVERCURRENT DELAY TIME PINS 2 AND 35 FLOATING
CFILTER Threshold Voltage
VFILTER
1.20
1.25
1.30 V
CFILTER Charging Current
Nominal Current Limit Duration =
C_CFILTER x 550k
IFILTER
VXVIN – VXSENSE > VTHILIMIT
2
2.5
3
µA
tFILTER
CFILTER Open
Current Limit Threshold Voltages
VTHILIMIT VXIN – VXVSENSE
47.5
Fast-Trip Threshold Voltages
VTHFAST VXVIN – VXVSENSE
85
XVSENSE Input Current
ISENSE
LOW-Level Input Voltage ON,
VIL
AUXEN, GPI, FORCE_ON, PRSNT
Output LOW Voltage FAULT,
PWRGD
VOL
IOL = 3mA
HIGH-Level Input Voltage ON,
VIH
2.1.
AUXEN, GPI, FORCE_ON
Internal Pull-ups to VSTBY (Note 5)
RPULL-UP
12VIN, 3VIN Input Leakage Current ILKG,OFF XVIN VSTBY = +3.3V, 12VIN = OFF; 3VIN = OFF
Input Leakage Current, ON, AUXEN,
IIL
-2
FORCE_ON
Off-State Leakage Current FAULT,
ILKG(OFF) GPI ILKG for these two pins measured with
-2
PWRGD, GPI
VAUX OFF
Over-temperature Shutdown and
Reset Thresholds, with Overcurrent
On Slot
TOV
T_J increasing, each slot (Note 5)
T_J decreasing, each slot (Note 5)
Over-temperature Shutdown and
Reset Thresholds, All Other
Conditions (All Outputs Will Latch Off)
T_J increasing, each slot (Note 5)
T_J decreasing, each slot (Note 5)
Output MOSFET Resistance VAUX
MOSFET
r_DS(AUX)
IDS = 375mA
Off-State Output Offset Voltage VAUX VOFF(VAUX) VAUX = Off
Regulated Current Level
ILIM(AUX)
0.8
Output Discharge Resistance
RDIS(12V) 12VOUT = 6.0V
RDIS(3V) 3VOUT = 1.65V
RDIS(VAUX) 3VAUX = 1.65V
12V Current Limit Response Time
(See “Typical Application Diagram”
on page 9).
tOFF(12V)
CGATE = 25pF
VIN – VSENSE = 140mV
3.3V Current Limit Response Time
(See “Typical Application Diagram”
on page 9).
tOFF(3V)
CGATE = 25pF
VIN – VSENSE = 140mV
VAUX Current Limit Response Time
(See “Typical Application Diagram”
on page 9).
tSC
VAUX = 0V, VSTBY = +3.3V
Delay from MAIN Overcurrent to
FAULT Output
tPROP
CFILTER = 0
(12V FAULT or 3V VIN – VSENSE = 140mV
FAULT)
Delay from VAUX Overcurrent to
FAULT Output
tPROP
I_LIM(AUX) to FAULT output CFILTER = 0
(VAUXFAULT) VAUX Output Grounded
ON, AUXEN, PRSNT Minimum Pulse
Width
tW
(Note 5)
Power-On Reset Time after VSTBY
Becomes Valid
tPOR
(Note 5)
10
50
100
0.1
40
0.5
140
130
160
150
25
1
1400
140
350
1
µs
52.5 mV
115 mV
µA
0.8
V
0.4
V
5
V
50
kΩ
1
µA
2
µA
2
µA
°C
°C
°C
°C
350 mΩ
40 mV
1.2
A
1850 Ω
180 Ω
400 Ω
2.1 µs
0.3
1
µs
2.5
µs
1
µs
1
µs
100
ns
250
µs
7
FN6456.0
September 28, 2007