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ADN8831ACPZ-R2 数据表(PDF) 5 Page - Analog Devices

部件名 ADN8831ACPZ-R2
功能描述  Thermoelectric Cooler (TEC) Controller
PDF  20 Pages
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制造商  AD [Analog Devices]
网页  http://www.analog.com
标志 AD - Analog Devices

ADN8831ACPZ-R2 数据表(HTML) 5 Page - Analog Devices

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Data Sheet
ADN8831
Rev. A | Page 5 of 20
Parameter1
Symbol
Test Conditions/Comments
Min
Typ
Max
Unit
LOGIC Controls
Logic Low Output Voltage
V
OL
TMPGD, SYNCO, I
OUT = 0 A
0.2
V
Logic High Output Voltage
V
OH
TMPGD, SYNCO, I
OUT = 0 A
V
DD − 0.2
V
Logic Low Input Voltage
V
IL
0.2
V
Logic High Input Voltage
V
IH
3
V
Output High Impedance
V
DD = 5.0 V
35
Ω
Output Low Impedance
V
DD = 5.0 V
20
Ω
Output High Impedance
V
DD = 3.0 V
50
Ω
Output Low Impedance
V
DD = 3.0 V
25
Ω
TEC CURRENT MEASUREMENT
ITEC Gain
A
V, ITEC
(V
ITEC – VREF/2) / (VLFB − VCS)
25
V/V
ITEC Output Range High
V
ITEC, HIGH
No load
V
DD − 0.05
V
ITEC Output Range Low
V
ITEC, LOW
0.05
V
ITEC Input Range2
V
CS, VLFB
0
V
DD
V
ITEC Bias Voltage
V
ITEC, B
V
LFB = VCS = 0
1.10
1.20
1.30
V
Maximum ITEC Driving Current
I
OUT, TEC
±1.5
mA
TEC VOLTAGE MEASUREMENT
VTEC Gain
A
V, VTEC
(V
VTEC – VREF/2)/(VLFB − VSFB)
0.23
0.25
0.28
V/V
VTEC Output Range2
V
VTEC
V
DD = 5.0 V
0.05
2.5
V
VTEC Bias Voltage2
V
VTEC, B
V
LFB = VSFB = 0 V
1.20
1.25
1.35
V
VTEC Output Load Resistance
R
VTEC
I
VTEC = 300 μA
35
Ω
VOLTAGE LIMIT
VLIM Gain
A
V, LIM
(V
LFB − VSFB)/VVLIM
5
V/V
VLIM Input Range2
V
VLIM
0
V
DD
V
VLIM Input Current, Cooling
I
VLIM, COOL
V
OUT2 < VREF/2
100
nA
VLIM Input Current, Heating
I
VLIM, HEAT
V
OUT2 > VREF/2
I
FREQ
mA
VLIM Input Current Accuracy, Heating
I
VLIM, HEAT
I
VLIM/IFREQ
0.8
1.0
1.18
A/A
CURRENT LIMIT
ILIMC Input Voltage Range
V
ILIMC
V
REF/2
V
DD − 1
V
ILIMH Input Voltage Range
V
ILIMH
0.1
V
REF/2
V
ILIMC Limit Threshold
V
TH, ILIMC
V
ITEC = 2.0 V, RS = 20 mΩ
1.98
2.0
2.02
V
ILIMH Limit Threshold
V
TH, ILIMH
V
ITEC = 0.5 V
0.48
0.5
0.52
V
TEMPERATURE GOOD
High Threshold
V
OUT1, TH1
IN2M tied to OUT2, V
IN2P = 1.5 V
1.55
1.60
V
Low Threshold
V
OUT1, TH2
IN2M tied to OUT2, V
IN2P = 1.5 V
1.40
1.45
V
1 Logic inputs meet typical CMOS I/O conditions for source/sink current (~1 µA).
2 Guaranteed by design or indirect test methods.
3 The ADN8831 does not work when the supply voltage is less than UVLO.



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