Linear Technology DC1208A - LTC4151: 80V High Side Power Monitor, req. DC590B DC1208A DC1208A Fiche De Données
Codes de produits
DC1208A
LTC4151
1
4151ff
Typical applicaTion
FeaTures
applicaTions
DescripTion
High Voltage I
2
C Current
and Voltage Monitor
is a high side power monitor that operates
over a wide voltage range of 7V to 80V. In default operation
mode, the onboard 12-bit ADC continuously measures
high side current, input voltage and an external voltage.
Data is reported through the I
2
C interface when polled
by a host. The LTC4151 can also perform on-demand
measurement in a snapshot mode. The LTC4151 features
a dedicated shutdown pin to reduce power consumption.
The LTC4151-1/LTC4151-2 feature split I
2
C data pins to
drive opto-isolators. The data out on the LTC4151-1 is
inverted while that on the LTC4151-2 is not.
High Side Power Sensing with Onboard ADC and I
2
C
n
Wide Operating Voltage Range: 7V to 80V
n
12-Bit Resolution for Both Current and Voltages
n
I
2
C Interface
n
Additional ADC Input Monitors an External Voltage
n
Continuous Scan and Snapshot Modes
n
Shutdown Mode (LTC4151) Reduces Quiescent
Current to 120µA
n
Split SDA for Opto-Isolation (LTC4151-1/LTC4151-2)
n
Available in 10-Lead MSOP, 10-Lead 3mm
× 3mm
DFN and 16-Lead SO Packages
n
–48V Telecom Infrastructure
n
Automotive
n
Industrial
n
Consumer
12-Bit ADC DNL and INL
4151 TA01
3.3V
0.02Ω
µCONTROLLER
GND
LTC4151
SHDN
V
IN
7V TO 80V
V
OUT
V
IN
V
DD
MEASURED
VOLTAGE
SCL
SDA
ADIN
ADR1
SCL
2k
2k
SDA
ADR0
GND
SENSE
+
SENSE
–
CODE
0
ADC DNL (LSB)
0
0.5
4096
–0.5
–1.0
1024
2048
3072
1.0
4151 TA01b
CODE
0
ADC INL (LSB)
0
0.5
4096
–0.5
–1.0
1024
2048
3072
1.0
4151 TA01c
PART
PACKAGE
FEATURED PIN
LTC4151
DD10, MS10
SHDN
LTC4151-1
DD10, MS10
SDAO
LTC4151-2
S16
SDAO
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