AS1920-18-T austriamicrosystems, AS1920-18-T Datasheet - Page 2

• Manufacturer Part Number: AS1920-18-T
• Description: IC SUPERVISOR PUSH/PULL SOT23-5
• Manufacturer: austriamicrosystems
• Type: Multi-Voltage Supervisorr

Specifications of AS1920-18-T

• Number Of Voltages Monitored: 3
• Output: Push-Pull, Totem Pole
• Reset: Active Low
• Reset Timeout: 140 ms Minimum
• Voltage - Threshold: 1.683V, 2.805V, Adj
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: SOT-23-5, SC-74A, SOT-25
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

AS1920/AS1922
Datasheet - P i n o u t
4 Pinout
Pin Assignments
Figure 2. Pin Assignments (Top View)
Pin Descriptions
Table 2. Pin Descriptions
www.austriamicrosystems.com
Pin Number
1
2
3
4
5
Pin Name
RESETN
V
V
GND
V
CC18
CCA
CC3
Reset Logic Output. This active-low pin serves as the 3V push/pull reset
output. A reset is asserted when any one of the supplies are below its
respective trip threshold and the reset is held for 200ms after all power supplies
have stabilized.
Ground.
V
Note: If this pin is not used it should be tied to V
V
pin provides power to the output reset stage of the device in order to assert a
valid reset when the voltage on the primary input is down.
Note: Bypass this pin to GND with a ≥0.1µF ceramic capacitor.
V
provides power to the device.
Note: Bypass this pin to GND with a ≥0.1µF ceramic capacitor.
CCA
CC18
CC3
RESETN
. 3V sense input and power supply pin (AS1920-18, AS1922-18). This pin
. 1V sense, high-impedance input.
V
GND
. 1.8V sense input and power detect pin (AS1920-18, AS1922-18). This
CCA
1
2
3
Revision 1.00
AS1920/
AS1922
5 V
5 V
4 V
4 V
CC3
CC3
CC18
CC18
Description
CC3
or V
CC18
.
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