HV3922
Recommended Operating Conditions
Symbol
Parameter
Min
4.5
0
Max
5.5
Units
V
VCC
Logic Supply Voltage
VIN
DC Logic Input Voltage
VLL Supply Voltage
VCC
V
VLL
-3.5
200
-2.5
220
V
VPP
VPP Supply Voltage
V
IPD(N)
H
High-State Continuous PD(N) Source Current
Ambient Operating Temp
DRV(N) Load Capacitance
1.7
mA
°C
µF
TA
-55
0
+125
0.006
CL
Notes:
1.VPP rise time (dv/dt) should be less than 50V/µS.
2.Power-up sequence should be the following:
A)
B)
Connect ground;
Apply VCC
;
C) Apply VLL;
D) Apply VPP
E) Set all inputs to a known state. Power-down sequence should be the reverse of the above.
;
Function Table
Input
Output
Data
D(N)
VTH
Internal
Latch Q(N)
CS
H
X
L
ENA
X
OE
H
Level2
PD(N)
DRV(N)
Fault
X
X
H
L
Pass
Pass
Pass
Pass
P/F
Previous State Previous State Previous State
Previous State Previous State Previous State
VFH
VFH
VFH
VFH
VFH
VFH
H
H
L
H
Set
Reset
Previous State Previous State
Previous State Previous State
L
L
H
L
L
H>L
H>L
H>L
H
L
Set
VDH
HI-Z
VDL
VDH
L
L
P/F
Reset
H
X
X
Previous State
Set
P/F
P/F
VDH
HI-Z
VDL
VDH
VFH
VFH
Reset
X
H
H>L
X
Previous State
Set
Pass
Pass
Fail
VDH
HI-Z
HI-Z
VDL
VDH
VDL
VFH
VFH
VFL
Reset
X
X
X
H
X
X
—
(At Power Up)
X
VIH
P/F
Set
VDH
VDL
VFH
Notes:
1. X indicates “Don’t Care” input state (L or H).
2. The output threshold is internally tested for each PD(N) output; the pass condition occurs when OE = H and:
A)
P
D(N) driving high with output > VTH (MAX), or may occurs if PD(N) driving high and output > VTH (MIN) and < VTL (MAX)
.
OR
B)
PD(N) driving Low with output < VTH (MIN), or may occur if PD(N) driving low and output < VTH (MAX) and < VTL (MIN)
.
The fail condition occurs when OE = H and conditions for “pass” are not satisfied.
3. Fault output = VFL indicates a fault has been detected in at least one of the PD(N) output loads when OE = H. All other outputs shall function normally when a fault
condition has been detected for one of the outputs. The Fault output shall remain in the low state, regardless of the state of the output which initiated the fault status, until
the next falling edge of OE. Whenever OE = L, the Fault output is forced to VFH, and the fault latch is reset. If the fault condition persists, the fault response repeats each
time the OE input is set to H.
4. H>L indicates falling edge (H to L).
5. HI-Z indicates no current is sourced to output PD(N)
.
6. P/F indicates “Pass” or “Fail” fault threshold conditions.
3
SUPERTEX [ Supertex, Inc ]
