Datasheet

MAX1968/MAX1969
Power Drivers for Peltier TEC Modules
10 ______________________________________________________________________________________
Functional Diagram
MAX V
TEC
=
V
MAXV
✕
4
GND
COMP
CTLI
ITEC
MAXIP
FREQ
PWM CONTROL
AND
GATE CONTROL
MAXIN
V
DD
PV
DD
1
PV
DD
2
R
SENSE
PGND1
PGND2
MAXV
REF
MAX1968
SHDN
MAX I
TEC
=
(V
MAXIP
/ V
REF
)
✕
(0.15V / R
SENSE
)
MAX I
TEC
=
-(V
MAXIN
/ V
REF
)
✕
(0.15V / R
SENSE
)
REF
OS1
OS2
CS
LX1
LX2
ON
OFF
3V TO
5.5V
V
DD
OS1
REF
CS