MAX1978 Maxim, MAX1978 Datasheet - Page 5

• Manufacturer Part Number: MAX1978
• Description: Integrated Temperature Controllers for Peltier Modules
• Manufacturer: Maxim

ELECTRICAL CHARACTERISTICS
(V
unless otherwise noted.) (Note 5)
Input Supply Range
Output Voltage Range
Maximum TEC Current
Reference Voltage
Reference Load Regulation
Current-Sense Threshold
No-Load Supply Current
Shutdown Supply Current
UVLO Threshold
Switching Frequency Internal
Oscillator
OS1, OS2, CS Input Current
SHDN, FREQ Input Current
SHDN, FREQ Input Low Voltage
SHDN, FREQ Input High Voltage
DD
= PV
DD
PARAMETER
1 = PV
DD
_______________________________________________________________________________________
2 = SHDN = 5V, FREQ = GND, CTLI = FB+ = FB- = MAXV = MAXIP = MAXIN = REF, T
I
SYMBOL
I
OS1
TEC(MAX)
I
f
I
I
∆V
V
DD(NO
LOAD)
SW-INT
I
DD-SD
V
V
SHDN
V
F REQ
UVLO
V
I
V
OUT
REF
, I
CS
DD
REF
IH
IL
OS2
,
,
Controllers for Peltier Modules
CONDITIONS
V
V
V
V
V
V
V
V
MAX1978
MAX1979
V
V
I
V
V
V
V
SHDN = GND, V
V
V
FREQ = GND
FREQ = V
0 or V
0 or V
V
V
REF
DD
OUT
DD
OUT
DD
OUT
DD
OUT
DD
DD
OS1
OS1
DD
DD
DD
DD
DD
DD
= 5V, I
= 5V, I
= 3V, I
= 3V, I
= 3V to 5.5V, I
= 3V to 5.5V,
= 10µA to -1mA
= 5V
= 3.3V
= 3V to 5.5V
= 3V to 5.5V
rising
falling
< V
> V
= V
= V
= V
= V
DD
DD
CS
CS
OS1
OS1
OS1
OS1
DD
TEC
TEC
TEC
TEC
-V
(MAX1979)
- V
(MAX1979)
= 0 to ±3A,
= 0 to 6A,
= 0 to ±3A,
= 0 to 6A,
OS2
OS2
DD
Integrated Temperature
REF
= 5V (Note 3)
(MAX1978)
(MAX1978)
V
V
V
V
= 150µA
MAXI_
MAXI_
MAXI_
MAXI_
= V
= V
= V
= V
REF
REF
REF
REF
/3
/3
0.75
1.475
-100
MIN
2.25
V
-4.3
-2.3
135
135
450
800
2.4
40
40
-5
DD
3
✕
A
= -40°C to +85°C,
0.25
1.515
+100
MAX
1200
+4.3
+2.3
2.75
V
160
160
650
5.5
4.3
2.3
2.8
±3
+5
60
60
50
30
DD
6
5
3
✕
UNITS
kHz
mV
mV
mA
mA
µA
µA
V
V
A
V
V
V
V
5