X40010V8I-A Intersil, X40010V8I-A Datasheet - Page 2

• Manufacturer Part Number: X40010V8I-A
• Description: IC VOLTAGE MONITOR DUAL 8-TSSOP
• Manufacturer: Intersil
• Type: Multi-Voltage Supervisorr

Specifications of X40010V8I-A

• Number Of Voltages Monitored: 2
• Output: Push-Pull, Totem Pole
• Reset: Active High
• Reset Timeout: Adjustable/Selectable
• Voltage - Threshold: 2.9V, 4.6V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 8-TSSOP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Low V
from low voltage conditions, resetting the system
when V
RESET/RESET is active until V
operating level and stabilizes. A second voltage moni-
tor circuit tracks the unregulated supply to provide a
power fail warning or monitors different power supply
voltage. Three common low voltage combinations are
available, however, Intersil’s unique circuits allows the
threshold for either voltage monitor to be repro-
grammed to meet special needs or to fine-tune the
threshold for applications requiring higher precision.
Dual Voltage Monitors
*Voltage monitor requires V
PIN CONFIGURATION
PIN DESCRIPTION
SOIC TSSOP
X40010/11
X40014/15
1
2
3
4
5
Device
Pin
CC
-A
-B
-C
-A
-B
-C
CC
detection circuitry protects the user’s system
3
4
5
6
7
RESET/RESET
falls below the minimum V
V2MON V2 Voltage Monitor Input. When the V2MON input is less than the V
RESET/
V2FAIL V2 Voltage Fail Output. This open drain output goes LOW when V2MON is less than V
RESET
Name
V2MON
SDA
V2FAIL
V
Expected System Voltages
SS
V
CC
SS
3V or 3.3V; 1.1 or 1.2V
to operation. Others are independent of V
X40010/14, X40011/15
goes HIGH when V2MON exceeds V
LOW. This input can monitor an unregulated power supply with an external resistor divider or can
monitor a second power supply with no external components. Connect V2MON to V
not used.The V2MON comparator is supplied by V2MON (X40010/11) or by V
RESET Output. (X40011/15) This is an active LOW, open drain output which goes active whenever
V
RESET Output. (X40010/14) This is an active HIGH CMOS output which goes active whenever V
falls below V
Ground
Serial Data. SDA is a bidirectional pin used to transfer data into and out of the device. It has an open
drain output and may be wire ORed with other open drain or open collector outputs. This pin requires
a pull up resistor and the input buffer is always active (not gated).
Watchdog Input. A HIGH to LOW transition on the SDA (while SCL is toggled from HIGH to
LOW and followed by a stop condition) restarts the Watchdog timer. The absence of this transi-
tion within the watchdog time out period results in WDO going active.
2
CC
5V; 3V or 3.3V
3V; 3.3V; 1.8V
3V; 3.3V; 1.5V
1
2
3
4
8-Pin SOIC
falls below V
3V; 1.5V
5V; 3V
CC
returns to proper
TRIP1
X40010, X40011, X40014, X40015
8
7
6
5
TRIP1
. It will remain active until
TRIP1
V
WDO
SCL
SDA
CC
. It will remain active until V
point.
Table 1:
4.55–4.65*
4.35–4.45*
2.85–2.95*
2.85–2.95*
2.55–2.65*
2.85–2.95*
Vtrip1(V)
2.0–4.75*
2.0–4.75*
CC
.
TRIP2
The Watchdog Timer provides an independent protec-
tion mechanism for microcontrollers. When the micro-
controller fails to restart a timer within a selectable
time out interval, the device activates the WDO signal.
The user selects the interval from three preset values.
Once selected, the interval does not change, even
after cycling the power.
The device features a 2-wire interface and software
protocol allowing operation on an I
. There is no power up reset delay circuitry on this pin.
V
V2MON
Function
V2FAIL
CC
WDO
V
CC
rises above V
CC
X40010/14, X40011/15
rises above V
1
2
3
4
0.90–3.50*
1.25–1.35*
1.25–1.35*
0.95–1.05*
Vtrip2(V)
1.70–4.75
2.85–2.95
2.55–2.65
1.65–1.75
8-Pin TSSOP
TRIP1
TRIP1
8
7
6
5
and for the t
TRIP2
and for the t
SCL
SDA
V
RESET/RESET
SS
voltage, V2FAIL goes
RESET = X40010
RESET = X40011
RESET = X40014
RESET = X40015
CC
POR (system)
2
C
Input (X40014/15).
PURST
®
PURST
bus.
SS
or
thereafter.
TRIP2
V
thereafter.
March 28, 2005
CC
when
FN8111.0
and
CC