NTE NTE15044 Datasheet
NTE15044
Integrated Circuit
CMOS, LSI for Supply Voltage Detection
Description:
The NTE15044 is an integrated circuit in a 3–Lead DIP type package which generates a reset signal
for initializing microcomputers and LSI systems at their power–on time, and a reset signal for preventing an abnormal system run at power fluctuation time.
Features:
D Generates a Reset Signal at Power–On Time Until Reaching a Constant Voltage
D Generates a Reset Signal Below a Constant Voltage at Power–Off Time
D Generates a Reset Signal when the Supply Voltage Falls, and Cancels it when the Supply
Voltage is Restored
D Capable of Detecting a Battery Service Life
D 3–Pin Adjustment–Free Device
D High–Accuracy Voltage Detection
D Low Power Consumption: 10µA Typ @ VDD = 5V
Absolute Maximum Ratings: (VSS = 0, TA = +25°C unless otherwise specified)
Supply Voltage, V
Output Voltage, V
Operating Ambient Temperature, T
Storage Temperature Range, T
DD
O
stg
opr
–0.3 to VDD +0.3V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
–20° to +70°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
–55° to +125°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Recommended Operating Conditions: (VSS = 0, TA = +25°C unless otherwise specified)
Parameter Symbol Test Conditions Min Typ Max Unit
Supply Voltage V
DD
2 – 6 V
DC Electrical Characteristics: (VSS = 0, TA = –20° to +70°C unless otherwise specified)
Parameter Symbol Test Conditions Min Typ Max Unit
Supply Current I
Detected Voltage Hysteresis Width V
Detected Voltage at Supply Voltage Fall ∆V
Output Voltage High Level V
Output Voltage Low Level V
DD
OH
OL
VDD = 5V at no–load output – 10 30 µA
TA = +25°C 4.0 – 4.3 V
DL
TA = +25°C 100 200 300 mV
D
IOH = –40µA 0.8 V
IOL = 0.7mA, VDD = 3V V
SS
– V
DD
– 0.4 V
DD
7V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
V
AC Electrical Characteristics:
Parameter Symbol Test Conditions Min Typ Max Unit
Reset Cancel Time t
Reset Time t
.271 (6.9) .098
OH
OL
– 5 – µs
– 5 – µs
(2.5)
Out V
DD
V
SS
.137
(3.5)
.039 (1.0)
.039 (1.0)
.122
(3.1)
.098 (2.5)
.177
(4.5)
.161
(4.1)
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