MAX1968EUI+ Maxim Integrated Products, MAX1968EUI+ Datasheet - Page 6

• Manufacturer Part Number: MAX1968EUI+
• Description: IC DRVR POWER 28-TSSOP
• Manufacturer: Maxim Integrated Products

Specifications of MAX1968EUI+

• Applications: Thermoelectric Cooler
• Voltage - Supply: 3 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 28-TSSOP Exposed Pad, 28-eTSSOP, 28-HTSSOP
• Output Voltage Range: - 4.3 V to + 4.3 V
• Output Current: 3 A
• Input Voltage Range: 3 V to 5.5 V
• Input Current: 30 mA
• Power Dissipation: 1.9 W
• Operating Temperature Range: - 40 C to + 85 C
• Mounting Style: SMD/SMT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Supply: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Power Drivers for Peltier TEC Modules
AC-COUPLED
(V
6
100mV/div
500mA/div
100mV/div
DD
V
_______________________________________________________________________________________
CTLI
I
TEC
= 5V, V
V
90
80
70
60
50
40
30
20
10
DD
0
0
CTLI
ZERO-CROSSING TEC CURRENT
EFFICIENCY vs. TEC CURRENT
= 1V, V
vs. CTLI VOLTAGE
TEC CURRENT (A)
1
FREQ = 500kHz
V
R
V
DD
LOAD
DD
200ns/div
FREQ
1ms/div
RIPPLE
= 5V
= 1Ω
= GND, R
2
LOAD
3
1.5V
0A
= 1Ω, circuit of Figure 1, T
2mA/div
I
TEC
3.0
2.5
2.0
1.5
1.0
0.5
90
80
70
60
50
40
30
20
10
0
0
-3
0
EFFICIENCY vs. TEC CURRENT
V
TEC CURRENT RIPPLE
ITEC
DC CURRENT = 1A
-1
TEC CURRENT (A)
TEC CURRENT (A)
1
vs. TEC CURRENT
FREQ = 500kHz
R
V
LOAD
DD
400ns/div
= 3.3V
= 0.85Ω
Typical Operating Characteristics
A
= +25°C, unless otherwise noted.)
1
2
3
3
AC-COUPLED
AC-COUPLED
100mV/div
100mV/div
1V/div
1A/div
V
CTLI
I
1.014
1.012
1.010
1.008
1.006
1.004
1.002
1.000
0.998
0.996
0.994
TEC
V
V
OS1
OS2
-40
FREQ = 500kHz
V
R
CTLI
TEC
TEC CURRENT vs. CTLI VOLTAGE
-20
= 1Ω
= 1.9V
OUTPUT VOLTAGE RIPPLE
I
TEC
TEMPERATURE (°C)
0
vs. TEMPERATURE
400ns/div
20ms/div
20
40
60
80
0V
0A