MAX6315 MAXIM [Maxim Integrated Products], MAX6315 Datasheet

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MAX6315

Manufacturer Part Number
MAX6315
Description
Open-Drain SOT ?P Reset Circuit
Manufacturer
MAXIM [Maxim Integrated Products]
Datasheet

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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 (minimum) are also available. The device
comes in a SOT143 package.
For microcontrollers (µCs) and µPs with bidirectional
reset pins, see the MAX6314 data sheet.
__________________Pin Configuration
________________General Description
________________________Applications
19-2000; Rev 1; 1/99
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800.
For small orders, phone 1-800-835-8769.
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
.
CC
3
4
Open-Drain SOT µP Reset Circuit
has risen above
V
MR
CC
Ordering and Marking Information appear at end of
data sheet.
____________________________Features
__________Typical Operating Circuit
Small SOT143 Package
Open-Drain RESET Output Can Exceed V
Precision, Factory-Set V
100mV Increments from 2.5V to 5V
±1.8% Reset Threshold Accuracy at T
±2.5% Reset Threshold Accuracy Over Temp.
Four Reset Timeout Periods Available:
1ms, 20ms, 140ms, or 1120ms (minimum)
Immune to Short V
5µA Supply Current
Pin-Compatible with MAX811
MR
CIRCUITRY
RESET
MAX6315
GND
V
CC
CC
Transients
LASER-
TRIMMED
RESISTORS
CC
RESET
Reset Thresholds:
V
CC
RESET
µP
A
= +25°C
CC
1

Related parts for MAX6315

MAX6315 Summary of contents

Page 1

... 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 voltage higher than The MAX6315 comes with factory-trimmed reset thresh- old voltages in 100mV increments from 2 ...

Page 2

... MR Glitch Rejection MR to Reset Delay MR Pull-Up Resistance RESET Output Voltage V OL RESET Output Leakage Current Note 1: The MAX6315 monitors V through an internal factory-trimmed voltage divider that programs the nominal reset threshold. CC Factory-trimmed reset thresholds are available in 100mV increments from 2. (see Information ). 2 _______________________________________________________________________________________ Continuous Power Dissipation (T SOT143 (derate 4mW/° ...

Page 3

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

Page 4

... This is one useful feature of an open-drain output. Keep in mind that as the MAX6315’s V decreases below 1V, so does the IC’s ability to sink current at RESET. Finally, with any pull-up, RESET will be pulled high as V decays toward 0V ...

Page 5

... MAX6315US25D1-T 2.50 † The MAX6315 is available in a SOT143 package, -40°C to +85°C temperature range. †† The first two letters in the package top mark identify the part, while the remaining two letters are the lot tracking code. ††† Sample stocks generally held on the bolded products; also, the bolded products have 2,500 piece minimum-order quantities. ...

Page 6

... MAX6315US25D3-T 2.50 † The MAX6315 is available in a SOT143 package, -40°C to +85°C temperature range. The first two letters in the package top mark identify the part, while the remaining two letters are the lot tracking code. †† ††† Sample stocks generally held on the bolded products; also, the bolded products have 2,500 piece minimum-order quantities. ...

Page 7

Information TRANSISTOR COUNT: 519 ________________________________________________________Package Information _______________________________________________________________________________________ Open-Drain SOT µP Reset Circuit 7 ...

Page 8

Open-Drain SOT µP Reset Circuit 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 ...

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