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MAX8521 Datasheet(PDF) 6 Page - Maxim Integrated Products

Part # MAX8521
Description  Smallest TEC Power Drivers for Optical Modules
PDF  18 Pages
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Manufacturer  MAXIM [Maxim Integrated Products]
Direct Link  https://www.maximintegrated.com/en.html
Logo MAXIM - Maxim Integrated Products

MAX8521 Datasheet(HTML) 6 Page - Maxim Integrated Products

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Smallest TEC Power Drivers for Optical
Modules
6
_______________________________________________________________________________________
DIFFERENTIAL
OUTPUT VOLTAGE RIPPLE
MAX8520/21 toc04
400ns/div
VOS2 - VOS1
1mV/div
AC-COUPLED
C2 = C7 = 1
µF
ITEC = 1A
VDD RIPPLE
MAX8520/21 toc05
400ns/div
VDD
20mV/div
AC-COUPLED
ITEC = 1A
TEC CURRENT RIPPLE
MAX8520/21 toc06
400ns/div
10mA/div
AC-COUPLED
0A
1.5A
TEC CURRENT vs. CTLI VOLTAGE
MAX8520/21 toc07
20ms/div
VCTLI
1V/div
ITEC
1A/div
0A
0V
ZERO-CROSSING TEC CURRENT
MAX8520/21 toc08
1ms/div
VCTLI
I00mV/div
ITEC
100mA/div
0A
1.5V
VITEC vs. TEC CURRENT
TEC CURRENT (A)
1.5
1.0
0.5
0
-0.5
-1.0
-1.5
0.5
1.0
1.5
2.0
2.5
3.0
0
-2.0
2.0
Typical Operating Characteristics (continued)
(VDD = 5V, circuit of Figure 1, TA = +25°C unless otherwise noted)
ITEC vs. AMBIENT TEMPERATURE
AMBIENT TEMPERATURE (
°C)
+60
+40
+20
0
-20
0.460
0.470
0.480
0.490
0.500
0.510
0.520
0.450
-40
+80
FREQ = 1MHz
VCTLI = 2V
RTEC = 1
Ω
SWITCHING FREQUENCY
vs. TEMPERATURE
TEMPERATURE (
°C)
+80
+60
+40
+20
0
-20
500
600
700
800
900
1000
1100
400
-40
FREQ = 1MHz
VCTLI = 1.5V
RTEC = 1
Ω
FREQ = 500KHz



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