LTC2990CMS View Datasheet(PDF) - Linear Technology
Part Name
Description
MFG CO.
'LTC2990CMS' PDF : 24 Pages View PDF
LTC2990
Typical ApplicationS
Fan/Air Filter/Temperature Alarm
3.3V
0.1µF
2-WIRE
I2C
INTERFACE
VCC V1
V2
SDA
V3
SCL LTC2990
ADR0
ADR1 GND
V4
MMBT3904
470pF
3.3V
FAN
22Ω
0.125W
MMBT3904
470pF
FAN
22Ω
0.125W
HEATER
TINTERNAL
CONTROL REGISTER: 0x5D
TAMB
TR1
TR2
VCC
REG 4, 5
REG 6, 7
REG A, B
REG E, F
HEATER ENABLE
2 SECOND PULSE
0.0625°C/LSB
0.0625°C/LSB
0.0625°C/LSB
2.5V + 305.18µV/LSB
NDS351AN
2990 TA06
HEATER ENABLE
TEMPERATURE FOR:
GOOD FAN
BAD FAN
Battery Monitoring
BATTERY I AND V MONITOR
CHARGING
15mΩ*
CURRENT
5V
0.1µF
2-WIRE
I2C
INTERFACE
VCC V1
V2
SDA
V3
SCL LTC2990
ADR0
ADR1 GND
V4
MMBT3904
+
470pF
•••
TBATT
NiMH
BATTERY
TINTERNAL
*IRC LRF3W01R015F
V(t)
T(t)
I(t)
100%
100%
100%
2990 TA07
VOLTAGE AND TEMPERATURE CONFIGURATION:
CONTROL REGISTER: 0x58
TAMB
VBAT
TBAT
VCC
REG 4, 5
REG 8, 9
REG A, B
REG E, F
0.0625°C/LSB
305.18µVLSB
0.0625°C/LSB
2.5V + 305.18µV/LSB
CURRENT AND TEMPERATURE CONFIGURATION:
CONTROL REGISTER: 0x59
TAMB
IBAT
TBAT
VCC
REG 4, 5
REG 6, 7
REG A, B
REG E, F
0.0625°C/LSB
1.295mA/LSB
0.0625°C/LSB
2.5V + 305.18µV/LSB
2990f
20
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