LTC2991 View Datasheet(PDF) - Linear Technology
Part Name
Description
MFG CO.
'LTC2991' PDF : 32 Pages View PDF
TYPICAL APPLICATIONS
Large Motor Protection/Regulation
MOTOR CONTROL VOLTAGE
0V TO 40V
0A TO 10A
5V
2-WIRE I2C
INTERFACE
LOADPWR = I • V
0.01Ω
1W, 1%
71.5k
1%
10.2k
1%
71.5k
1%
10.2k
1%
TAMBIENT
VCC
V1 V2
SDA
V3
SCL LTC2991
ADR0
ADR1
V4
ADR2
GND V5 TO V8
MMBT3904
TMOTOR
MOTOR
2991 TA05
4
OTHER APPS
VOLTAGE, CURRENT AND TEMPERATURE CONFIGURATION:
CONTROL REGISTER 06: 0xA1
TAMBIENT
VMOTOR
IMOTOR
TMOTOR
VCC
REG 1A, 1B:
REG 0A, 0B:
REG 0C, 0D:
REG 0E, 0F:
REG 1C, 1D:
0.0625°C/LSB
2.44mV/LSB
15.54mA/LSB
0.0625°C/LSB
2.5V + 305.18µV/LSB
Fan/Air Filter/Temperature Alarm
MMBT3904 3.3V
FAN
22Ω
3.3V
0.125W
2-WIRE I2C
INTERFACE
VCC V1
V2
SDA
V3
SCL LTC2991
ADR0
ADR1
V4
GND V5 TO V8
MMBT3904
TAMBIENT
4
OTHER APPS
HEATER ENABLE
2 SECOND PULSE
CONTROL REGISTER 0x06 = 0xAA
TAMBIENT
TFAN1
REG 1A, 1B: 0.0625°C/LSB
REG 0A, 0B: 0.0625°C/LSB
TFAN2
VCC
REG 0C, 0D: 0.0625°C/LSB
REG 1C, 1D: 2.5V + 305.18µV/LSB
FAN
22Ω
0.125W
HEATER
NDS351AN
2991 TA06
TEMPERATURE FOR:
HEATER ENABLE
GOOD FAN
BAD FAN
LTC2991
For more information www.linear.com/LTC2991
2991ff
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