ADN8831ACPZ-REEL7 Analog Devices Inc, ADN8831ACPZ-REEL7 Datasheet - Page 13

• Manufacturer Part Number: ADN8831ACPZ-REEL7
• Description: IC THERMO COOLER CTRLR 32LFCSP
• Manufacturer: Analog Devices Inc

Specifications of ADN8831ACPZ-REEL7

• Applications: Thermoelectric Cooler
• Current - Supply: 8mA
• Voltage - Supply: 3 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 32-LFCSP
• Ic Function: Thermoelectric Cooler Controller
• Supply Voltage Range: 3V To 5.5V
• Operating Temperature Range: -40°C To +85°C
• Digital Ic Case Style: LFCSP
• No. Of Pins: 32
• Msl: MSL 1 - Unlimited
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: ADN8831ACPZ-REEL7TR

The sink current is set by the resistor connected from the FREQ
pin to ground. Calculate the sink current as
Where I
resistor connected at FREQ. Then, calculate the cooling and
heating limits as
V
V
I
SINK
VLIM
VLIM
SINC
,
,
=
COOL
HEAT
is the sink current at the VLIM pin, and R
R
. 1
FREQ
25
=
=
V
V
VLIM
R
REF
A
+
,
×
COOL
R
R
B
B
−
I
SINK
×
R
A
R
B
FREQ
is the
Rev. 0 | Page 13 of 20
MAXIMUM TEC CURRENT LIMIT
Set separate maximum TEC current limits in cooling and
heating directions by applying a voltage at the ILIMC and
ILIMH pins to protect the TEC. Maximum TEC currents are
given as
I
I
TEC
TEC
,
,
MAX
MAX
,
,
COOL
HEAT
=
=
V
. 1
25
25
ILIMC
25
×
×
−
R
R
−
V
SENSE
SENSE
ILIMH
. 1
25
ADN8831