LTC2991 View Datasheet(PDF) - Linear Technology
Part Name
Description
MFG CO.
'LTC2991' PDF : 32 Pages View PDF
LTC2991
TYPICAL APPLICATIONS
Oven Control with Power Monitor
5V
2-WIRE
I2C INTERFACE
VOLTAGE AND CURRENT (POWER) MONITOR
VCC
V1 V2
SDA
V3
SCL
V4
LTC2991
ADR0
V5
ADR1
V6
ADR2
V7
OTHER APPLICATIONS
VCC
OVEN
TSET 70°C
TAMBIENT
V8
PWM
GND
VOLTAGE, CURRENT, TEMPERATURE AND PWM CONFIGURATION:
CONTROL REGISTER
0x06: 0x01
0x07: 0xA0
PWM, TINTERNAL, VCC REG: 0x08: 0x50
PWM REGISTER
0x09: 0x1B
TAMBIENT
VHEATER
IHEATER
TOVEN
VCC
REG 1A, 1B
REG 0A, 0B
REG 0C, 0D
REG 16, 17
REG 1C, 1D
0.0625°C/LSB
305µV/LSB
19.075µV/RHEATERA/LSB
0.0625°C/LSB
2.5V + 305.18µV/LSB
TEMPERATURE
SENSOR
VCC
100k
100k
1M
HEATER
5V
+
–
LT6240
1µF
2991 TA11
Remote Temperature Sensing with Extended ESD Performance
3.3V
VCC
SDA LTC2991
SCL
GND
500Ω
V1
500Ω
V2
MMBT3904
> 8kV ESD
MMBT3904
PROTECTION
REMOTE
DEVICE TEMPERATURE
SENSOR
CONTROL REGISTER 0x06 = 0xAA
REMOTE TEMPERATURE SENSOR REG OB, OB: 0.0625 °C/LSB
2991 TA13
2991ff
28
For more information www.linear.com/LTC2991
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