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Fairchild Semiconductor |
www.fairchildsemi.com
ILC5061
Power Supply reset Monitor with 1% Precision
Features
• All-CMOS design in SOT-23 or SC70 package
• ±1% precision in Reset Detection
• Only 1µA of Iq
• 2mA of sink current capability
• Built-in hysteresis of 5% of detection voltage
• Voltage options of 2.6, 2.9, 3.1, 4.4, and 4.6V fit most
supervisory applications
• Open-Drain Reset Output
Applications
• Microprocessor reset circuits
• Memory battery back-up circuitry
• Power-on reset circuits
• Portable and battery powered electronics
Description
All-CMOS Monitor circuits in either a 3-lead SOT-23 or
SC70 package offer the best performance in power con-
sumption and accuracy.
The ILC5061 comes in a series of ±1% accurate trip voltages
to fit most microprocessor applications. Even though its out-
put can sink 2mA, the device draws only 1µA in normal
operation.
Additionally, a built-in hysteresis of 5% of detect voltage
simplifies system design.
Block Diagram
VIN
VOUT
VREF
VSS
Pin Package Configurations
Top View
VOUT 1
VSS 2
SC-70
VOUT 1
3 VIN
VSS 2
SOT-23 3 VIN
Rev. 2.5 1/2/03
ILC5061
PRODUCT SPECIFICATION
Absolute Maximum Ratings
Parameter
Input Voltages
Output Current
Output Voltages
Continuous Total
Power Dissipation
Operation Ambient temperature
Storage Temperature
SOT 23
Symbol
VIN
IOUT
VOUT
Pd
Ratings
12
50
VSS-0.3~+VIN+03
150
Units
V
mA
V
mW
Topr -30~+80 oC
Tstg -40~+125 oC
Electrical Characteristics TA = 25°C
Parameter
Symbol
Conditions
Min
Type Max Units
Detect Fail Voltage
VDF
VDF X 0.99
VDF VDF X 1.01
V
Hysteresis Range
VHYS
VDF X 0.02 VDF X 0.05 VDF X 0.08
V
Supply Current
VIN = 1.5V
VIN = 2.0V
ISS VIN = 3.0V
VIN = 4.0V
VIN = 5.0V
0.9 2.6
1.0 3.0
1.3 3.4 µA
1.6 3.8
2.0 4.2
Operating Voltage
VIN
VDF = 2.1~ 6.0V
1.5
10.0 V
Output Current
IOUT
N-ch VDS = 0.5V
VIN = 1.0V
VIN = 2.0V
VIN = 3.0V
VIN = 4.0V
VIN = 5.0V
2.2
7.7
10.1
11.5
13.0
mA
Temperature Charac- DVDF/(DTopr * VDF) -30oC<Topr<80oC
teristics
-200
+100
+200
Ppm/ oC
Delay Time Release
Voltage Output Inver-
sion)
TDLY
(VDR to VOUT
inversion)
0.1 ms
Note:
1. An additional resistor between the VIN pin and supply voltage may cause deterioration of the characteristics due
to increasing VDR.
2 Rev. 2.5 1/2/03
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