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ADN8831ACPZ-R2 Datasheet(PDF) 3 Page - Analog Devices

Part # ADN8831ACPZ-R2
Description  Thermoelectric Cooler (TEC) Controller
PDF  20 Pages
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

ADN8831ACPZ-R2 Datasheet(HTML) 3 Page - Analog Devices

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Data Sheet
ADN8831
Rev. A | Page 3 of 20
DETAILED BLOCK DIAGRAM
ADN8831
REFERENCE
VB
1.25V
80kΩ
2kΩ
10kΩ
8
7
6
5
4
3
2
1
ILIMC
IN1P
IN1N
OUT1
IN2P
IN2N
OUT2
32
31
30
29
28
27
26
25
24
22
21
18
17
16
15
14
12
11
10
9
TEMPERATURE
GOOD
2.5V
20
19
COMPSW
SFB
PGND
SNGATE
SW
SPGATE
PVDD
COMPOSC
SOFT START
SB
250mV
OSCILLATOR
SD
SD
DETECT
13
ITEC
ILIMC
ILIMH
100kΩ
100kΩ
20kΩ
20kΩ
LFB
LINEAR AMPLIFIER
LPGATE
LNGATE
LFB
VB
VC
23
VB
gm3
gm2
gm1
VC
20kΩ
20kΩ
20kΩ
20kΩ
1.25V
1.25V
VB
Chop2
Chop1
VB
= 2.5V, VDD > 4.0V
= 1.5V, VDD < 4.0V
ILIMH
VLIM
VTEC
ITEC
CS
VOLTAGE
LIMIT
25kΩ
20kΩ
20kΩ
5kΩ
SFB
LFB
1.25V
1kΩ
25kΩ
VREF
5kΩ
1kΩ
AVDD
PHASE
TMPGD
AGND
FREQ
SYNCO
SYNCI/SD
SS/SB
Figure 2. Detailed Block Diagram



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