Datasheet

LTC2991
24
2991fd
For more information www.linear.com/LTC2991
Typical applicaTions
Computer Voltage and Temperature Monitoring
Motor Protection/Regulation
MICROPROCESSOR
V
CC
V1
LTC2991
2-WIRE I
2
C
INTERFACE
GND
SDA
SCL
ADR0
ADR1
ADR2
V3
V4
V2
2991 TA03
10k
1%
10k
1%
10k
1%
3.3V
30.1k
1%
5V
12V
VOLTAGE AND TEMPERATURE CONFIGURATION
CONTROL REGISTER: 0x06 0x0A
T
AMBIENT
REG 1A, 1B: 0.0625°C/LSB
V1(+5) REG 0A, 0B: 610µV/LSB
V2(+12) REG 0C, 0D: 1.22mV/LSB
T
PROCESSOR
REG 0E, 0F: 0.0625°C/LSB
V
CC
REG 1C, 1D: 2.5V + 305.18µV/LSB
0.1µF
OTHER APPS
V5 TO V8
4
V
CC
V1
LTC2991
LOAD
PWR
= I • V
0.1Ω
1%
MOTOR CONTROL VOLTAGE
0V
DC
TO 5V
DC
0A TO ±2.2A
2-WIRE I
2
C
INTERFACE
5V
GND
T
MOTOR
MMBT3904
SDA
SCL
ADR0
ADR1
ADR2
V3
V4
V2
2991 TA04
MOTOR
T
AMBIENT
VOLTAGE, CURRENT AND TEMPERATURE CONFIGURATION:
CONTROL REGISTER: 0x06: 0xA1
T
AMBIENT
REG 1A, 1B: 0.0625°C/LSB
V
MOTOR
REG 0A, 0B: 305.18µV/LSB
I
MOTOR
REG 0C, 0D: 190.75µA/LSB
T
MOTOR
REG 1A, 1B: 0.0625°C/LSB
V
CC
REG 1C, 1D: 2.5V + 305.18µV/LSB
OTHER APPS
V5 TO V8
4