LP3470IM5-4.00 National Semiconductor, LP3470IM5-4.00 Datasheet - Page 3

• Manufacturer Part Number: LP3470IM5-4.00
• Description: Tiny Power On Reset Circuit
• Manufacturer: National Semiconductor

V
I
V
V
t
t
V
R
I
CC
PD
RP
LEAK
Symbol
Limits in standard typeface are for T
otherwise specified. V
CC
RTH
HYST
OL
1
Electrical Characteristics
Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Electrical specifications do not apply when operating the device
beyond its operating conditions.
Note 2: The maximum power dissipation must be derated at elevated temperatures and is dictated by T
bient Thermal Resistance), and T
given in the Absolute Maximum Ratings, whichever is lower.
Note 3: The Human Body Model is a 100 pF capacitor discharged through a 1.5 k
Note 4: Typical numbers are at 25˚C and represent the most likely parametric norm.
Note 5: Min. and Max. limits in standard typeface are 100% production tested at 25˚C. Min. and Max. limits in boldface are guaranteed through correlation using Sta-
tistical Quality Control (SQC) methods. The limits are used to calculate National’s Average Outgoing Quality Level (AOQL).
Note 6: Factory-trimmed reset thresholds are available in 50 mV increments from 2.4V to 5.0V. Contact your National Semiconductor representative.
Note 7: V
Note 8: t
Absolute Maximum Ratings
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
V
Reset Voltage
Output Current (Reset)
CC
Voltage
RP
HYST
Operating Voltage Range
V
Reset Threshold Voltage
(Note 6)
Hysteresis Voltage (Note 7)
V
Reset Timeout Period (Note
8)
Reset Output Voltage Low
External Pull-up Resistor
Reset Output Leakage
Current
is programmable by varying the value of the external capacitor (C
CC
CC
affects the relation between V
Supply Current
to Reset Delay
Parameter
CC
= +2.4V to +5.0V unless otherwise noted.
A
(Ambient Temperature). The maximum allowable power dissipation at any temperature is P
J
CC
= 25˚C, and limits in boldface type apply over the full operating temperature range, unless
and Reset as shown in the timing diagram.
V
LP3470
LP3470I
V
C
V
V
V
mA
CC
CC
1
CC
CC
CC
= 1 nF
= 4.5V
falling at 1 mV/µs
= 0.5V; I
= 1.0V; I
=V
(Note 1)
RTH
−0.3V to +6V
−0.3V to +6V
Conditions
−100 mV; I
OL
OL
10 mA
= 30 µA
= 100 µA
1
) connected to pin SRT. The equation is: t
3
OL
= 4
resistor into each pin.
Operating Temperature Range
Junction Temperature (T
Power Dissipation (T
2)
Storage Temp. Range
Lead Temp. (Soldering, 5 sec)
ESD Rating (Note 3)
JA
LP3470
LP3470I
(Note 2)
Typ (Note 4)
V
V
0.15
100
16
35
20
RTH
RTH
2
Jmax
(Maximum Junction Temperature),
A
= 25˚C) (Note
Min (Note 5)
0.985 V
0.99 V
0.99 V
0.99 V
Jmax
0.68
RP
0.5
1.0
15
)
Dmax
= 2000 x C
RTH
RTH
RTH
RTH
= (T
Jmax
1
Max (Note 5)
1.015 V
(C
1.01 V
1.01 V
1.01 V
− T
1
A
in µF and t
300
5.5
3.5
0.1
0.1
0.4
−65˚C to +150˚C
30
65
68
)/
JA
1
6
−20˚C to +85˚C
−40˚C to +85˚C
JA
(Junction to Am-
RTH
RTH
RTH
RTH
www.national.com
or the number
RP
280˚C/W
300 mW
in ms).
125˚C
260˚C
Units
2 kV
mV
ms
µA
k
µA
µs
V
V
V