ISL88706IB844Z

Manufacturer Part NumberISL88706IB844Z
DescriptionIC SUPERVISOR 4.38V 8-SOIC
ManufacturerIntersil
TypeSimple Reset/Power-On Reset
ISL88706IB844Z datasheet
 


Specifications of ISL88706IB844Z

Number Of Voltages Monitored1OutputOpen Drain or Open Collector
ResetActive LowReset Timeout140 ms Minimum
Voltage - Threshold4.38VOperating Temperature-40°C ~ 85°C
Mounting TypeSurface MountPackage / Case8-SOIC (3.9mm Width)
Lead Free Status / RoHS StatusLead free / RoHS Compliant  
1
Page 1
2
Page 2
3
Page 3
4
Page 4
5
Page 5
6
Page 6
7
Page 7
8
Page 8
9
Page 9
10
Page 10
11
12
13
14
15
Page 6/15

Download datasheet (481Kb)Embed
PrevNext
ISL88705, ISL88706, ISL88707, ISL88708, ISL88716, ISL88813
Electrical Specifications
Over the recommended operating conditions unless otherwise specified. Parameters with MIN and/or MAX
limits are 100% tested at +25°C, unless otherwise specified. Temperature limits established by characterization
and are not production tested. (Continued)
SYMBOL
PARAMETER
MANUAL RESET
V
MR Input Voltage Low
MRL
V
MR Input Voltage High
MRH
t
MR Minimum Pulse Width
MR
R
Internal MR Pull-Up Resistor
PU
WATCHDOG TIMER (Note 2)
t
Watchdog Time-out Period
WDT
t
WDI Minimum Pulse Width
WDPS
V
Watchdog Input Voltage Low
IL
V
Watchdog Input Voltage High
IH
V
WDO Output Voltage Low
WDOL
V
WDO Output Voltage High
WDOH
I
Watchdog Input Current
WDT
POWER-FAIL DETECTION
V
PFI Input Threshold Voltage
THPFI
PFIV
Hysteresis Voltage
THHYST
V
PFO Output Voltage Low
PFOL
V
PFO Output Voltage High
PFOH
NOTE:
2. Applies to ISL88705, ISL88706, ISL88716, and ISL88813.
Principles of Operation
The ISL88705, ISL88706, ISL88707, ISL88708, ISL88716,
ISL88813 devices provide those functions needed for
monitoring critical voltages such as power-supply and battery
functions in microprocessor systems. Features of these
supervisors include Power-On Reset control, Supply Voltage
Supervision, Power-Fail Detection and Manual Reset
Assertion. The integration of all these features along with high
reset threshold accuracy and low power consumption make
these devices ideal for portable or battery-powered equipment.
6
CONDITIONS
MIN
V
- 0.6
DD
550
1.0
100
0.7 x V
DD
≥ 3.3V, Sinking 2.5mA
V
DD
V
< 3.3V, Sinking 1.5mA
DD
≥ 3.3V, Sourcing 2.5mA
V
V
- 0.6
DD
DD
V
< 3.3V, Sourcing 1.5mA
V
- 0.6
DD
DD
MR = Open
1.20
≥ 3.3V, Sinking 2.5mA
V
DD
V
< 3.3V, Sinking 1.5mA
DD
≥ 3.3V, Sourcing 2.5mA
V
V
- 0.6
DD
DD
V
< 3.3V, Sourcing 1.5mA
V
- 0.6
DD
DD
Power-On Reset (POR)
Applying power to the device activates a POR circuit which
asserts reset (i.e. RST goes high while RST goes low). These
signals provide several benefits:
• It prevents the system microprocessor from starting to
operate with insufficient voltage.
• It prevents the processor from operating prior to stabilization
of the oscillator.
• It ensures that the monitored device is held out of operation
until internal registers are properly loaded.
• It allows time for an FPGA to download its configuration prior
to initialization of the circuit.
The reset signals remain active until V
minimum voltage sense level for time period t
ensures that the supply voltage has stabilized to sufficient
operating levels.
TYP
MAX
UNITS
0.8
V
V
ns
20
1.6
2.0
s
ns
0.3 x V
V
DD
V
0.05
0.40
V
0.05
0.40
V
V
- 0.4
V
DD
V
- 0.4
V
DD
1
µA
1.25
1.30
V
20
mV
0.05
0.40
V
0.05
0.40
V
V
- 0.4
V
DD
V
- 0.4
V
DD
rises above the
DD
. This
POR
FN8092.5
January 12, 2009