MAX6628MTA+T Maxim Integrated Products, MAX6628MTA+T Datasheet

IC TEMP SENSOR DGTL 8-TDFN

MAX6628MTA+T

Manufacturer Part Number
MAX6628MTA+T
Description
IC TEMP SENSOR DGTL 8-TDFN
Manufacturer
Maxim Integrated Products
Datasheet

Specifications of MAX6628MTA+T

Function
Temp Monitoring System (Sensor)
Topology
ADC
Sensor Type
External
Sensing Temperature
External Sensor
Output Type
SPI™
Output Alarm
No
Output Fan
No
Voltage - Supply
3 V ~ 5.5 V
Operating Temperature
-55°C ~ 125°C
Mounting Type
Surface Mount
Package / Case
8-TDFN Exposed Pad
Full Temp Accuracy
+/- 0.5 C
Digital Output - Bus Interface
Serial (3-Wire, SPI)
Digital Output - Number Of Bits
12 bit + Sign
Maximum Operating Temperature
+ 125 C
Minimum Operating Temperature
- 55 C
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
MAX6628MTA+T
MAX6628MTA+TTR
The MAX6627/MAX6628 precise digital temperature
sensors report the temperature of a remote sensor. The
remote sensor is a diode-connected transistor, typically
a low-cost, easily mounted 2N3904 NPN type that
replaces conventional thermistors or thermocouples.
The MAX6627/MAX6628 can also measure the die tem-
perature of other ICs, such as microprocessors (µPs) or
microcontrollers (µCs) that contain an on-chip, diode-
connected transistor.
Remote accuracy is ±1°C when the temperature of the
remote diode is between 0°C and +125°C and the tem-
perature of the MAX6627/MAX6628 is +30°C. The tem-
perature is converted to a 12-bit + sign word with
0.0625°C resolution. The architecture of the device is
capable of interpreting data as high as +145°C from
the remote sensor. The MAX6627/MAX6628 tempera-
ture should never exceed +125°C.
These sensors are 3-wire serial interface SPI™ compat-
ible, allowing the MAX6627/MAX6628 to be readily con-
nected to a variety of µCs. The MAX6627/MAX6628 are
read-only devices, simplifying their use in systems
where only temperature data is required.
Two conversion rates are available, one that continu-
ously converts data every 0.5s (MAX6627), and one
that converts data every 8s (MAX6628). The slower ver-
sion provides minimal power consumption under all
operating conditions (30µA, typ). Either device can be
read at any time and provide the data from the last con-
version.
Both devices operate with supply voltages between
+3.0V and +5.5V, are specified between -55°C and
+125°C, and come in space-saving 8-pin SOT23 and
lead-free TDFN packages.
19-2032; Rev 4; 8/08
SPI is a trademark of Motorola, Inc.
Pin Configurations appears at end of data sheet.
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim's website at www.maxim-ic.com.
Sensors with SPI-Compatible Serial Interface
Hard Disk Drive
Smart Battery Packs
Automotive
Industrial Control Systems
Notebooks, PCs
Remote ±1°C Accurate Digital Temperature
________________________________________________________________ Maxim Integrated Products
General Description
Applications
o Accuracy
o 12-Bit + Sign, 0.0625°C Resolution
o Low Power Consumption
o Operating Temperature Range (-55°C to +125°C)
o Measurement Temperature Range, Remote
o 0.5s (MAX6627) or 8s (MAX6628) Conversion Rate
o SPI-Compatible Interface
o +3.0V to +5.5V Supply Range
o 8-Pin SOT23 and TDFN Packages
o Lead-Free Version Available (TDFN Package)
Note: All devices are specified over the -55°C to +125°C oper-
ating temperature range.
# Denotes an RoHS-compliant package.
T = Tape and reel.
+ Denotes a lead-free/RoHS-compliant package.
* EP = Exposed pad.
MAX6627MKA#T
MAX6627MTA+T
MAX6628MKA#T
MAX6628MTA+T
Junction (-55°C to +145°C)
±1°C (max) from 0°C ≤ T
±2.4°C (max) from -55°C ≤ T
0°C ≤ T
30µA (typ) (MAX6628)
200µA (typ) (MAX6627)
2200pF
PART
A
≤ +70°C
+ 3V TO + 5.5V
Typical Operating Circuit
DXP
DXN
V
CC
MAX6627
MAX6628
Ordering Information
0.1μF
PIN-PACKAGE
8 SOT23
8 TDFN-EP*
8 SOT23
8 TDFN-EP*
GND
SDO
SCK
RJ
CS
≤ +125°C, T
RJ
≤ +100°C,
Features
TOP MARK
μC
A
AAEQ
+AUU
+AUT
AAER
= +30°C
1

Related parts for MAX6628MTA+T

MAX6628MTA+T Summary of contents

Page 1

... Supply Range o 8-Pin SOT23 and TDFN Packages o Lead-Free Version Available (TDFN Package) PART MAX6627MKA#T MAX6627MTA+T MAX6628MKA#T MAX6628MTA+T Note: All devices are specified over the -55°C to +125°C oper- ating temperature range. # Denotes an RoHS-compliant package Tape and reel. + Denotes a lead-free/RoHS-compliant package Exposed pad. ...

Page 2

Remote ±1°C Accurate Digital Temperature Sensors with SPI-Compatible Serial Interface ABSOLUTE MAXIMUM RATINGS (All voltages referenced to GND.) V ...........................................................................-0.3V to +6V CC SDO, SCK, DXP, CS .....................................-0. DXN .......................................................................-0.3V to +0.8V SDO Pin Current Range ......................................-1mA to ...

Page 3

Remote ±1°C Accurate Digital Temperature Sensors with SPI-Compatible Serial Interface ELECTRICAL CHARACTERISTICS (continued) (3.0V ≤ V ≤ 5.5V, -55°C ≤ T ≤ +125°C, unless otherwise noted. Typical values are noted.) PARAMETER SYMBOL LOGIC INPUTS (CS, SCK) ...

Page 4

Remote ±1°C Accurate Digital Temperature Sensors with SPI-Compatible Serial Interface (V = +3.3V +25°C, unless otherwise noted AVERAGE OPERATING CURRENT vs. SUPPLY VOLTAGE 300 250 200 MAX6627 150 100 MAX6628 50 0 3.0 3.5 4.0 4.5 ...

Page 5

Remote ±1°C Accurate Digital Temperature Sensors with SPI-Compatible Serial Interface Detailed Description The MAX6627/MAX6628 remote digital thermometers report the temperature of a remote sensor. The remote sensor is a diode-connected transistor—typically, a low-cost, easily mounted 2N3904 NPN type—that replaces conventional ...

Page 6

Remote ±1°C Accurate Digital Temperature Sensors with SPI-Compatible Serial Interface t CSS CS SCK t DV SDO D15 Figure 2. SPI Timing Diagram Table 2. Temperature Data Format (Two’s Complement) DIGITAL OUTPUT (BINARY) TEMPERATURE (°C) D15–D3 150 0,1001,0110,0000 125 0,0111,1101,0000 ...

Page 7

Remote ±1°C Accurate Digital Temperature Sensors with SPI-Compatible Serial Interface Filter high-frequency electromagnetic interference (EMI) at DXP and DXN with an external 2200pF capaci- tor connected between the two inputs. This capacitor can be increased to about 3300pF (max), including ...

Page 8

Remote ±1°C Accurate Digital Temperature Sensors with SPI-Compatible Serial Interface DXP DXN TOP VIEW GND 1 DXN 2 MAX6627 MAX6628 DXP SOT23 Chip Information PROCESS: BiCMOS 8 _______________________________________________________________________________________ V CC 12-BIT + SIGN INTERFACE ADC 8 ...

Page 9

... 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. Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 _____________________ 9 © 2008 Maxim Integrated Products DESCRIPTION is a registered trademark of Maxim Integrated Products, Inc ...

Related keywords