MAX6315US28D2-T Maxim Integrated, MAX6315US28D2-T Datasheet

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MAX6315US28D2-T

Manufacturer Part Number
MAX6315US28D2-T
Description
Supervisory Circuits
Manufacturer
Maxim Integrated
Series
MAX6315r
Datasheet

Specifications of MAX6315US28D2-T

Number Of Voltages Monitored
1
Monitored Voltage
1 V to 5.5 V
Undervoltage Threshold
2.75 V
Overvoltage Threshold
2.85 V
Output Type
Active Low, Open Drain
Manual Reset
Resettable
Watchdog
No Watchdog
Battery Backup Switching
No Backup
Power-up Reset Delay (typ)
28 ms
Supply Voltage - Max
5.5 V
Maximum Operating Temperature
+ 125 C
Mounting Style
SMD/SMT
Package / Case
SOT-143
Chip Enable Signals
No
Maximum Power Dissipation
320 mW
Minimum Operating Temperature
- 40 C
Power Fail Detection
No
Supply Current (typ)
5 uA
Supply Voltage - Min
1 V
The MAX6315 low-power CMOS microprocessor (µP)
supervisory circuit is designed to monitor power sup-
plies in µP and digital systems. It provides excellent cir-
cuit reliability and low cost by eliminating external
components and adjustments. The MAX6315 also pro-
vides a debounced manual reset input.
This device performs a single function: it asserts a reset
signal whenever the V
preset threshold or whenever manual reset is asserted.
Reset remains asserted for an internally programmed
interval (reset timeout period) after V
the reset threshold or manual reset is deasserted. The
MAX6315’s open-drain RESET output can be pulled up
to a voltage higher than V
The MAX6315 comes with factory-trimmed reset thresh-
old voltages in 100mV increments from 2.5V to 5V.
Preset timeout periods of 1ms, 20ms, 140ms, and
1120ms (min) are also available. The device comes in a
SOT143 package.
For microcontrollers (µCs) and µPs with bidirectional
reset pins, see the MAX6314 data sheet.
________________________Applications
________________General Description
19-2000; Rev 3; 12/05
For pricing delivery, and ordering information please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
TOP VIEW
Computers
Controllers
Intelligent Instruments
Critical µP and µC Power Monitoring
Portable/Battery-Powered Equipment
RESET
GND
________________________________________________________________ Maxim Integrated Products
2
1
CC
SOT143
MAX6315
CC
supply voltage falls below a
Pin Configuration
.
CC
Open-Drain SOT µP Reset Circuit
3
4
has risen above
V
MR
CC
♦ Small SOT143 Package
♦ Open-Drain RESET Output Can Exceed V
♦ Precision, Factory-Set V
♦ Four Reset Timeout Periods Available:
♦ Immune to Short V
♦ 5µA Supply Current
♦ Pin-Compatible with MAX811
♦ Guaranteed Over Temperature
Ordering Information continued at end of data sheet.
____________________________Features
+125°C temperature range.
††
while the remaining two letters are the lot tracking code.
Devices are available in both leaded and lead-free packaging.
Specify lead-free by replacing “-T” with “+T” when ordering.
Note: All devices available in tape-and-reel only. Contact fac-
tory for availability.
__________Typical Operating Circuit
The MAX6315 is available in a SOT143 package, -40°C to
______________Ordering Information
MAX6315US50D1-T
The first two letters in the package top mark identify the part,
100mV Increments from 2.5V to 5V
1ms, 20ms, 140ms, or 1120ms (minimum)
PART
MR
CIRCUITRY
RESET
MAX6315
GND
V
CC
CC
NOMINAL
Transients
V
LASER-
TRIMMED
RESISTORS
TH
CC
5.00
(V)
RESET
Reset Thresholds:
V
CC
MIN t
(ms)
1
RESET
RP
µP
CC
MARK
FX_ _
TOP
††
1

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MAX6315US28D2-T Summary of contents

Page 1

... GND 1 MAX6315 RESET 2 SOT143 ________________________________________________________________ Maxim Integrated Products For pricing delivery, and ordering information please contact Maxim/Dallas Direct! at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com. Open-Drain SOT µP Reset Circuit ____________________________Features ♦ Small SOT143 Package ♦ Open-Drain RESET Output Can Exceed V ♦ ...

Page 2

Open-Drain SOT µP Reset Circuit ABSOLUTE MAXIMUM RATINGS V ........................................................................-0.3V to +6.0V CC RESET....................................................................-0.3V to +6.0V All Other Pins..............................................-0. Input Current (V ) .............................................................20mA CC Output Current (RESET)......................................................20mA Rate of Rise (V ) ...........................................................100V/µs CC Stresses beyond those ...

Page 3

Operating Characteristics (T = +25°C, unless otherwise noted.) A SUPPLY CURRENT vs. TEMPERATURE -50 -30 - ...

Page 4

Open-Drain SOT µP Reset Circuit _______________Detailed Description A microprocessor’s (µP’s) reset input starts the µ known state. The MAX6315 asserts reset to prevent code-execution errors during power-up, power- down, or brownout conditions. RESET is guaranteed ...

Page 5

... MAX6315US38D2-T 1 GL_ _ MAX6315US37D2-T 1 GM_ _ MAX6315US36D2-T 1 GN_ _ MAX6315US35D2-T 1 GO_ _ MAX6315US34D2-T 1 GP_ _ MAX6315US33D2-T 1 GQ_ _ MAX6315US32D2-T 1 GR_ _ MAX6315US31D2-T 1 GS_ _ MAX6315US30D2-T 1 GT_ _ MAX6315US29D2-T 1 GU_ _ MAX6315US28D2-T 1 GV_ _ MAX6315US27D2-T 1 GW_ _ MAX6315US26D2-T MAX6315US25D2-T NOMINAL MIN t RP † V (V) (ms) MARK TH 5.00 20 GX_ _ 4.90 20 GY_ _ 4.80 20 GZ_ _ 4.70 20 HA_ _ 4.63 20 HB_ _ 4 ...

Page 6

Open-Drain SOT µP Reset Circuit ___________________________________________Ordering Information (continued) NOMINAL † PART V (V) TH MAX6315US50D3-T 5.00 MAX6315US49D3-T 4.90 MAX6315US48D3-T 4.80 MAX6315US47D3-T 4.70 MAX6315US46D3-T ††† 4.63 MAX6315US45D3-T 4.50 MAX6315US44D3-T ††† 4.39 MAX6315US43D3-T 4.30 MAX6315US42D3-T 4.20 MAX6315US41D3-T 4.10 MAX6315US40D3-T 4.00 MAX6315US39D3-T 3.90 ...

Page 7

... Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. 7 _____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © 2005 Maxim Integrated Products Open-Drain SOT µP Reset Circuit Printed USA is a registered trademark of Maxim Integrated Products, Inc ...

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