MAX8521ETP+ Maxim Integrated Products, MAX8521ETP+ Datasheet - Page 5

• Manufacturer Part Number: MAX8521ETP+
• Description: IC DRVR PWR TEC 20-TQFN
• Manufacturer: Maxim Integrated Products

Specifications of MAX8521ETP+

• Applications: Thermoelectric Cooler
• Voltage - Supply: 3 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 20-TQFN Exposed Pad
• Output Voltage Range: - 4.3 V to + 4.3 V
• Output Current: 1.5 A
• Input Voltage Range: 3 V to 5.5 V
• Input Current: 14 mA
• Power Dissipation: 1.67 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

ELECTRICAL CHARACTERISTICS (continued)
(V
T
Note 4: Enter 1MHz mode by connecting a 60kΩ resistor from FREQ to ground for the MAX8520, and connecting FREQ to V
Note 5: Includes power FET leakage.
Note 6: Duty-cycle specification is guaranteed by design and not production tested.
Note 7: CTLI Gain is defined as:
Note 8: Specifications to -40°C are guaranteed by design and not production tested.
(V
A
MAXV Threshold Accuracy
MAXV, MAXI_ Input Bias Current
CTLI Gain
CTLI Input Resistance
Error-Amp Transconductance
V
DD
DD
ITEC
= -40°C to +85°C, unless otherwise noted.) (Note 8)
90
80
70
60
50
40
30
20
10
0
= V
= 5V, circuit of Figure 1, T
0
Accuracy
the MAX8521.
PVDD1
0.2
EFFICIENCY vs. TEC CURRENT
PARAMETER
FREQ = 500kHz
A
0.4
V
= V
CTLI
DD
TEC CURENT (A)
= 5V, R
0.6
PVDD2
_______________________________________________________________________________________
=
0.8
Smallest TEC Power Drivers for Optical
∆
TEC
(
FREQ = 1MHz
= V
V
1
OS
∆
= 2Ω
V
SHDN
1
CTLI
1.2
A
−
= +25°C unless otherwise noted.)
V
1.4
CS
= 5V, 1MHz mode (Note 4). PGND1 = PGND2 = GND, CTLI = MAXV = MAXIP = MAXIN = REF,
I
MAXI_-BIAS
SYMBOL
)
1.6
I
A
R
MAXV-
BIAS
g
CTLI
CTLI
m
,
90
80
70
60
50
40
30
20
10
0
V
V
V
V
V
V
1MΩ terminated at REF
V
V
MAXV
DD
MAXV
DD
MAXV
CTLI
OS1
OS1
0
= 5V
= 3V
0.2
to V
= V
= 0.5V to 2.5V (Note 7)
EFFICIENCY vs. TEC CURRENT
FREQ = 500kHz
= V
= V
= V
V
DD
DD
CS
0.4
REF
REF
MAXI_
/2
= 3.3V, R
= ±100mV
TEC CURRENT (A)
0.6
x 0.67, V
x 0.33, V
CONDITIONS
= 0.1V or 1.5V
0.8
TEC
FREQ = 1MHz
Typical Operating Characteristics
1
OS1
OS1
= 1.3Ω
1.2
to V
to V
1.4
OS2
OS2
1.6
= ±4V,
= ±2V,
OUTPUT VOLTAGE RIPPLE
MIN
-0.1
9.5
0.5
-10
50
-2
-3
COMMON-MODE
400ns/div
Modules
MAX8520/21 toc03
MAX
+0.1
10.5
+10
160
2.0
+2
+3
DD
C
V
20mV/div
AC-COUPLED
V
20mV/div
AC-COUPLED
I
TEC
UNITS
2
OS2
OS1
= C
MΩ
V/V
µA
µS
%
%
%
for
= 1A
7
= 1µF
5