EEWORLDEEWORLDEEWORLD

Part Number

Search

LTC2946IDE#PBF

Description
Monitor 2.7V to 100V Automotive 16-Pin DFN EP Tube
File Size437KB,42 Pages
ManufacturerADI
Websitehttps://www.analog.com
Download Datasheet Parametric View All

LTC2946IDE#PBF Overview

Monitor 2.7V to 100V Automotive 16-Pin DFN EP Tube

LTC2946IDE#PBF Parametric

Parameter NameAttribute value
EU restricts the use of certain hazardous substancesCompliant
ECCN (US)EAR99
Part StatusActive
HTS8542.39.00.01
TypeMonitor
Input Voltage (V)2.7 to 100
Minimum Operating Supply Voltage (V)2.7
Maximum Operating Supply Voltage (V)100
Maximum Supply Current (mA)1.3
Minimum Operating Temperature (°C)-40
Maximum Operating Temperature (°C)85
Supplier Temperature GradeIndustrial
PackagingTube
Standard Package NameDFN
Pin Count16
Supplier PackageDFN EP
MountingSurface Mount
Package Height0.75(Max)
Package Length4
Package Width3
PCB changed16
Lead ShapeNo Lead
LTC2946
Wide Range I
2
C Power,
Charge and Energy Monitor
FEATURES
n
n
n
n
DESCRIPTION
The
LTC
®
2946
is a rail-to-rail system monitor that measures
current, voltage, power, charge and energy. It features an
operating range of 2.7V to 100V and includes a shunt regu-
lator for supplies above 100V. The current measurement
common mode range of 0V to 100V is independent of the
input supply. A 12-bit ADC measures load current, input
voltage and an auxiliary external voltage. Load current and
internally calculated power are integrated over an external
clock or crystal or internal oscillator time base for charge
and energy. An accurate time base allows the LTC2946
to provide measurement accuracy of better than ±0.6%
for charge and ±1% for power and energy. Minimum and
maximum values are stored and an overrange alert with
programmable thresholds minimizes the need for software
polling. Data is reported via a standard I
2
C interface.
The LTC2946 I
2
C interface includes separate data input
and output pins for use with standard or opto-isolated I
2
C
connections. The LTC2946-1 has an inverted data output
for use with inverting opto-isolator configurations.
L,
LT, LTC, LTM, 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.
n
n
n
n
n
n
n
n
n
n
n
Rail-to-Rail Input Range: 0V to 100V
Wide Input Supply Range: 2.7V to 100V
Shunt Regulator for Supplies >100V
Δ∑ ADC with Less Than ±0.4% Total
Unadjusted Error
12-Bit Resolution for Current and Voltages
±1% Accurate Power and Energy Measurements
±0.6% Accurate Current and Charge Measurements
Additional ADC Input Monitors an External Voltage
Internal ±5% or External Time Bases
Continuous Scan and Snapshot Modes
Stores Minimum and Maximum Values
Alerts When Limits Exceeded
Split SDA Pin Eases Opto-Isolation
Shutdown Mode with I
Q
< 40µA
Available in 4mm × 3mm DFN and 16-Lead
MSOP Packages
APPLICATIONS
n
n
n
Telecom Infrastructure
Industrial Equipment
General Purpose Energy Measurement
TYPICAL APPLICATION
Wide Range Power, Charge and Energy
Monitor with Onboard ADC and I
2
C
V
IN
4V TO 100V
V
DD
0.1µF
NINE I
2
C
ADDRESSES
ACCUMULATION
ENABLE
INTV
CC
ADR1
ADR0
GND
GPIO2
CLKIN
LTC2946
0.02
SENSE
+
SENSE
GPIO3
SCL
SDAI
SDAO
ADIN
GPIO1
CLKOUT
TO
LOAD
ALERT
ADC TUE (%)
I
2
C
INTERFACE
MEASURED
VOLTAGE
GENERAL
PURPOSE
OUTPUT
0.10
ADC Total Unadjusted Error (ADIN)
0.05
0
–0.05
OPTIONAL
CRYSTAL
TIMEBASE
–0.10
2946 TA01a
0
1024
2048
CODE
3072
4096
2946 TA01b
2946fa
For more information
www.linear.com/LTC2946
1
[RVB2601 Creative Application Development] Development Board Trial
Received the board, bright picture Start the trial according to the official routine! First, I ran the helloworld example, but a lot of problems occurred: The clone code failed when creating a project...
UwenS XuanTie RISC-V Activity Zone
I have a very simple question for you all, how many volts does the LM124 use to power it?
I saw in the documentation that the supply voltage range of LM124 is 3~30V, but when I was debugging the board, I found that when the supply voltage of LM124 was changed, the output voltage would chan...
roczhan Microcontroller MCU
Bluetooth antenna problem
The Bluetooth ceramic antenna I bought has a theoretical center frequency of 2.45G, but the test result is 2.7G. The callback loss near 2.45G is very poor, but the finished device works normally (the ...
黑暗之浊 RF/Wirelessly
MIPI interface programming
Let's see if the solution is feasible by using STM32 to communicate with MIPI module. Attached is the data format of MIPI, including read and write. I originally wanted to use PIC18F to do it, and use...
yzriver stm32/stm8
How to turn off ACK in Zigbee protocol stack summary?
As the title says, how to turn off ACK in Zigbee protocol stack summary? In my prototype AF_DataRequest( afAddrType_t *dstAddr, endPointDesc_t *srcEP, uint16 cID, uint16 len, uint8 *buf, uint8 *transI...
mukekeheart RF/Wirelessly

EEWorld
subscription
account

EEWorld
service
account

Automotive
development
circle

Robot
development
community

Index Files: 192  835  2427  1903  2103  4  17  49  39  43 
Datasheet   0 1 2 3 4 5 6 7 8 9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Room 1530, 15th Floor, Building B, No. 18 Zhongguancun Street, Haidian District, Beijing Telephone: (010) 82350740 Postal Code: 100190
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved 京ICP证060456号 京ICP备10001474号-1 电信业务审批[2006]字第258号函 京公网安备 11010802033920号