LP3470IM5-4.38/NOPB National Semiconductor, LP3470IM5-4.38/NOPB Datasheet - Page 5

• Manufacturer Part Number: LP3470IM5-4.38/NOPB
• Description: IC CIRCUIT RESET PWR-ON SOT23-5
• Manufacturer: National Semiconductor
• Type: Simple Reset/Power-On Resetr

Specifications of LP3470IM5-4.38/NOPB

• Number Of Voltages Monitored: 1
• Output: Open Drain or Open Collector
• Reset: Active Low
• Reset Timeout: 1 ms Minimum
• Voltage - Threshold: 4.38V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: SOT-23-5, SC-74A, SOT-25
• Voltage Supervisor Type: Voltage Monitor
• Number Of Voltage Supervisors: 1
• Monitored Supervisor Voltage: 4.38
• Reset Threshold Voltage (min): 2.4V
• Reset Threshold Voltage (max): 5V
• Operating Supply Voltage (min): 0.5V
• Operating Supply Voltage (max): 5.5V
• Power Dissipation: 300mW
• Package Type: SOT-23
• Operating Temperature Classification: Industrial
• Operating Temp Range: -40C to 85C
• Pin Count: 5
• Mounting: Surface Mount
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: LP3470IM5-4.38/NOPBTR

Pin Descriptions
Functional Block Diagram
Pin
1
2
3
4
5
Name
Reset
GND
V
SRT
V
CC1
CC
V
HYST
Set Reset Time-out Input. Connect a capacitor between this input and ground to select the Reset Time-
out period (t
floating.
Ground pin.
Always connect to pin V
Supply voltage, and reset threshold monitor input.
Open-Drain, Active-Low reset output. Connect to an external pull-up resistor. Reset changes from high
to low whenever the monitored voltage (V
V
CC
vs V
exceeds V
RTH
RP
). t
RTH
RP
10001614
, Reset remains low for the reset timeout period (t
= 2000 x C
CC
(Pin 4).
1
(C
1
5
in µF and t
CC
) drops below the reset threshold voltage (V
Function
RP
in ms). If no capacitor is connected, leave this pin
V
HYST
vs Temperature
RP
) and then goes high.
10001603
10001609
RTH
www.national.com
). Once