SP730EK-3-075 SIPEX [Sipex Corporation], SP730EK-3-075 Datasheet

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SP730EK-3-075

Manufacturer Part Number
SP730EK-3-075
Description
Microprocessor Supervisory Circuit with Pull Up Resistor
Manufacturer
SIPEX [Sipex Corporation]
Datasheet

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Part Number
Manufacturer
Quantity
Price
Part Number:
SP730EK-3-075/TR
Manufacturer:
SIPEX
Quantity:
20 000
The SP730 is a voltage supervisory device designed to keep a microcontroller in reset until the
system voltage has reached the proper level and stabilized. It also operates as protection from
brown-out conditions when the supply voltage drops below a safe operating level. The SP730
has an internal 5kΩ pull-up resistor. The device has an active low RESET pin and will assert
the RESET signal whenever the voltage on the V
is available in a small 3 pin SOT-23 package. Contact factory for other trip voltage options.
FEATURES
■ Holds Microcontroller in Reset
■ Reset Microcontroller during power loss
■ 4.375 and 3.075 Voltage Trip Points
■ Active Low
■ Internal Pull-up Resistor
■ Holds RESET for 350ms (typical)
■ RESET valid down to V
■ 45µA Typical Operating Current
■ Offered in a 3 Pin SOT-23 Package
Date: 11/15/05
Microprocessor Supervisory Circuit with Pull Up Resistor
Pin
GND
DD
1.0V
SP730 Microprocessor Supervisory Circuit
SP730
RESET
V DD
1
DD
Bypass
Capacitor
APPLICATIONS
■ Portable Electronic Devices
■ Electrical Power Meter
■ Computer System Board
■ Modem
pin is below the trip-point voltage. The part
Now Available in Lead Free Packaging
V DD
Microcontroller
TYPICAL APPLICATION CIRCUIT
MCLR
or
RESET
V DD
GND
RESET
3 Pin SOT-23
SP730
GND
© Copyri ght 2005 Sipex Corporation
V
DD
DESCRIPTION
SP730

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SP730EK-3-075 Summary of contents

Page 1

Microprocessor Supervisory Circuit with Pull Up Resistor FEATURES ■ Holds Microcontroller in Reset ■ Reset Microcontroller during power loss ■ 4.375 and 3.075 Voltage Trip Points ■ Active Low Pin ■ Internal Pull-up Resistor ■ Holds RESET for 350ms (typical) ...

Page 2

V ................................................................................................. 6.0V DD All inputs and outputs w.r.t. GND ............................... -0 Storage Temperature .................................................. -65°C to +150°C Ambient Temperature with power applied.....................-65°C to +125°C ESD Protection on all pins ............................................................ ≥2kV V = 1.0V - 5.5V ; ...

Page 3

V DD Comparator Delay Circuit Bandgap Reference V TRIP V DD RESET Figure 1: SP730 Timing Diagram Date: 11/15/05 Output Driver tRPU V OH SP730 Microprocessor Supervisory Circuit 3 FUNCTIONAL DIAGRAM 5kΩ Internal pull up resistor RESET TIMING DIAGRAM tRPD ...

Page 4

Date: 11/15/05 TYPICAL PERFORMANCE CHARACTERISTICS Idd vs Temperature 20 40 Temperature ('C) tRPU vs Temperature 20 40 Temperature ('C) SP730 ...

Page 5

Date: 11/15/05 TYPICAL PERFORMANCE CHARACTERISTICS Normalized VTRIP vs Temperature ...

Page 6

TOP VIEW ø SYMBOL Ø SIPEX Pkg Signoff Date/Rev: Date: 11/15/ (L1) FRONT VIEW Gauge Plane L2 Seating ...

Page 7

... SP730EK-4-375/TR.........V3WW................-40°-85°................4.375V...........3 Pin SOT-23 SP730EK-3-075...............M4WW................-40°-85°...............3.075V...........3 Pin SOT-23 SP730EK-3-075/TR.........M4WW................-40°-85°................3.075V...........3 Pin SOT-23 Available in lead free packaging. To order add "-L" suffix to part number. Example: SP730EK-4-375/TR = standard; SP730EK-L-4-375/TR = lead free /TR = Tape and Reel Pack quantity is 2500 for SOT-23 ...

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