Datasheet

Integrated Temperature
Controllers for Peltier Modules
Typical Operating Circuit
MAX1978
INPUT
3V TO 5.5V
V
DD
PV
DD-
BFB-
AIN-
SHDN
OT
ON
OFF
OVERTEMP ALARM
UT
UNDERTEMP ALARM
AOUT
TEMP MONITOR
ITEC
AIN+
MAXV
TEC CURRENT MONITOR
VOLTAGE LIMIT
HEATING CURRENT LIMIT
COOLING CURRENT LIMIT
MAXIP
MAXIN
REF
LX1
PGND1
CS
OS1
OS2
LX2
PGND2
FB+
FB-
TEC
I
TEC
= ±3A
NTC
REF
DAC
OPTIONAL DAC
Chip Information
TRANSISTOR COUNT: 6023
PROCESS: BiCMOS
Package Information
For the latest package outline information and land patterns, go
to www.maxim-ic.com/packages
. Note that a "+", "#", or "-" in
the package code indicates RoHS status only. Package draw-
ings may show a different suffix character, but the drawing per-
tains to the package regardless of RoHS status.
PACKAGE TYPE PACKAGE CODE DOCUMENT NO.
48 TQFN-EP T4877+6
21-0144
MAX1978/MAX1979
Maxim Integrated
19