LTC4151
1
4151ff
For more information www.linear.com/LTC4151
Typical applicaTion
FeaTures
applicaTions
DescripTion
High Voltage I
2
C Current
and Voltage Monitor
The LTC
®
4151 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
L, LT , LT C , LT M , Linear Technology and the Linear logo are registered trademarks and
Hot Swap is a trademark of Linear Technology Corporation. All other trademarks are the
property of their respective owners.
LTC4151
2
4151ff
For more information www.linear.com/LTC4151
absoluTe MaxiMuM raTings
V
IN
Voltage .................................................0.3V to 90V
SENSE
+
, SENSE
Voltages ...........................V
IN
10V or
0.3V
to V
IN
+ 0.3V
ADR1, ADR0 Voltages .............................. 0.3V to 90V
ADIN, SHDN, SDAO, SDAO Voltages ........... 0.3V to 6V
SCL, SDA, SDAI Voltages (Note 2) ........... 0.3V to 5.5V
SCL, SDA, SDAI Clamp Current ............................... 5mA
(Notes 1, 3)
pin conFiguraTion
Operating Temperature Range
LTC4151C/LTC4151C-1/LTC4151C-2 ......... C to 70°C
LTC4151I/LTC4151I-1/LTC4151I-2 .........40°C to 85°C
LTC4151H ........................................... 40°C to 125°C
Storage Temperature Range
MSOP, SO ..........................................6C to 150°C
DFN .................................................... 6C to 125°C
Lead Temperature (Soldering, 10 sec)
MSOP, SO .........................................................30C
LTC4151 LTC4151
TOP VIEW
DD PACKAGE
10-LEAD (3mm × 3mm) PLASTIC DFN
10
9
6
7
8
4
5
11
3
2
1
SENSE
GND
SHDN
SDA
SCL
SENSE
+
V
IN
ADR1
ADR0
ADIN
T
JMAX
= 150°C, θ
JA
= 45°C/W
EXPOSED PAD (PIN 11) PCB GND CONNECTION OP
TIONAL
1
2
3
4
5
10
9
8
7
6
TOP VIEW
MS PACKAGE
10-LEAD PLASTIC MSOP
SENSE
GND
SHDN
SDA
SCL
SENSE
+
V
IN
ADR1
ADR0
ADIN
T
JMAX
= 150°C, θ
JA
= 85°C/W
LTC4151-1 LTC4151-1
TOP VIEW
DD PACKAGE
10-LEAD (3mm × 3mm) PLASTIC DFN
10
9
6
7
8
4
5
3
2
1
SENSE
GND
SDAO
SDAI
SCL
SENSE
+
V
IN
ADR1
ADR0
ADIN
11
T
JMAX
= 125°C, θ
JA
= 45°C/W
EXPOSED PAD (PIN 11) PCB GND CONNECTION OP
TIONAL
1
2
3
4
5
10
9
8
7
6
TOP VIEW
MS PACKAGE
10-LEAD PLASTIC MSOP
SENSE
GND
SDAO
SDAI
SCL
SENSE
+
V
IN
ADR1
ADR0
ADIN
T
JMAX
= 125°C, θ
JA
= 85°C/W
LTC4151-2
TOP VIEW
S PACKAGE
16-LEAD PLASTIC SO
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
SENSE
+
V
IN
NC
NC
ADR1
NC
ADR0
NC
SENSE
NC
NC
GND
SDAO
SDAI
SCL
ADIN
T
JMAX
= 150°C, θ
JA
= 100°C/W
LTC4151
3
4151ff
For more information www.linear.com/LTC4151
orDer inForMaTion
LEAD FREE FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE
LTC4151CDD#PBF LTC4151CDD#TRPBF LCWZ
10-Lead (3mm × 3mm) Plastic DFN
0°C to 70°C
LTC4151IDD#PBF LTC4151IDD#TRPBF LCWZ
10-Lead (3mm × 3mm) Plastic DFN
–40°C to 85°C
LTC4151HDD#PBF LTC4151HDD#TRPBF LCWZ
10-Lead (3mm × 3mm) Plastic DFN
–40°C to 125°C
LTC4151CDD-1#PBF LTC4151CDD-1#TRPBF LCXC
10-Lead (3mm × 3mm) Plastic DFN
0°C to 70°C
LTC4151IDD-1#PBF LTC4151IDD-1#TRPBF LCXC
10-Lead (3mm × 3mm) Plastic DFN
–40°C to 85°C
LTC4151CMS#PBF LTC4151CMS#TRPBF LTCWY 10-Lead Plastic MSOP 0°C to 70°C
LTC4151IMS#PBF LTC4151IMS#TRPBF LTCWY 10-Lead Plastic MSOP –40°C to 85°C
LTC4151HMS#PBF LTC4151HMS#TRPBF LTCWY 10-Lead Plastic MSOP –40°C to 125°C
LTC4151CMS-1#PBF LTC4151CMS-1#TRPBF LTCXB 10-Lead Plastic MSOP 0°C to 70°C
LTC4151IMS-1#PBF LTC4151IMS-1#TRPBF LTCXB 10-Lead Plastic MSOP –40°C to 85°C
LTC4151CS-2#PBF LTC4151CS-2#TRPBF LTC4151S-2 16-Lead Plastic SO 0°C to 70°C
LTC4151IS-2#PBF LTC4151IS-2#TRPBF LTC4151S-2 16-Lead Plastic SO –40°C to 85°C
Consult LTC Marketing for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container.
Consult LT C
Marketing for information on non-standard lead based finish parts.
For more information on lead free part marking, go to:
http://www.linear.com/leadfree/
For more information on tape and reel specifications, go to: http://www.linear.com/tapeandreel/
elecTrical characTerisTics
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
General
V
IN
Supply Voltage
l
7 80 V
I
IN
Supply Current V
IN
= 48V, Normal Operation Mode
V
IN
= 12V, Shutdown Mode
l
l
1.2
120
1.7
300
mA
µA
I
SENSE
+
SENSE
+
Input Current V
IN
, SENSE
+
, SENSE
= 48V
l
5 9 µA
I
SENSE
SENSE
Input Current V
IN
, SENSE
+
, SENSE
= 48V
l
0.1 1 µA
V
SHDN(TH)
SHDN Input Threshold
l
1 1.5 2 V
I
SHDN
SHDN Input Current SHDN = 0V
l
–3 –5 –8 µA
ADC
RES Resolution (No Missing Codes) (Note 4)
l
12 Bits
V
FS
Full-Scale Voltage (SENSE
+
– SENSE
)
V
IN
ADIN
81.92
102.4
2.048
mV
V
V
LSB LSB Step Size (SENSE
+
– SENSE
)
V
IN
ADIN
20
25
0.5
µV
mV
mV
TUE
Total Unadjusted Error (SENSE
+
– SENSE
)
V
IN
(Note 5)
ADIN, C-Grade
ADIN, I-, H-Grade
l
l
l
l
±1.25
±1
±0.75
±1
%
%
%
%
V
OS
Offset Error (SENSE
+
– SENSE
)
V
IN
(Note 6)
ADIN
l
l
l
±5
±6
±8
LSB
LSB
LSB
The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C. V
IN
is from 7V to 80V, unless noted. (Note 3)

LTC4151CS-2#TRPBF

Mfr. #:
Manufacturer:
Analog Devices Inc.
Description:
Current & Power Monitors & Regulators 80V HIgh-Side Power Monitor with Shutdown
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
T/T Paypal Visa MoneyGram Western Union