ADM1192 Datasheet PDF - Analog Devices
| Part Number | ADM1192 | |
| Description | Digital Power Monitor | |
| Manufacturers | Analog Devices | |
| Logo |  |
|
|
There is a preview and ADM1192 download ( pdf file ) link at the bottom of this page. Total 21 Pages | ||
Preview 1 page No Preview Available !
Data Sheet
Digital Power Monitor
with Clear Pin and ALERT Output
ADM1192
FEATURES
Powered from 3.15 V to 26 V
Precision current sense amplifier
Precision voltage input
12-bit ADC for current and voltage readback
ALERT output allows basic P-channel FET hot swap up to 26 V
SETV input for setting overcurrent alert threshold
Programmable overcurrent filtering via TIMER pin
CLRB input pin
I2C fast mode-compliant interface (400 kHz maximum)
10-lead MSOP
APPLICATIONS
Power monitoring/power budgeting
Central office equipment
Telecommunications and data communications equipment
PCs/servers
GENERAL DESCRIPTION
The ADM1192 is an integrated current sense amplifier that
offers digital current and voltage monitoring via an on-chip
12-bit analog-to-digital converter (ADC), communicated
through an I2C® interface.
An internal current sense amplifier measures voltage across the
sense resistor in the power path via the VCC pin and the SENSE pin.
A 12-bit ADC can measure the current seen in the sense resistor
and in the supply voltage on the VCC pin. An industry-standard
I2C interface allows a controller to read current and voltage
data from the ADC. Measurements can be initiated by an I2C
command. Alternatively, the ADC can run continuously, and
the user can read the latest conversion data whenever it is
required. Up to four unique I2C addresses can be created,
depending on the way the ADR pin is connected.
A SETV pin is also included. A voltage applied to this pin is
internally compared with the output voltage on the current sense
amplifier. The output of the SETV comparator asserts when the
current sense amplifier output exceeds the SETV voltage. This
event is detected at the ALERT block. The ALERT block then
charges up the external TIMER capacitor with a fixed current.
When this timing cycle is complete, the ALERT output asserts.
FUNCTIONAL BLOCK DIAGRAM
ADM1192
VCC
SENSE
V
0
I
A1
CURRENT
SENSE
AMPLIFIER
MUX
12-BIT
ADC
SDA
I2C SCL
ADR
SETV
COMPARATOR
ALERT
GND
CLRB TIMER
Figure 1.
ALERT
3.15V TO 26V
RSENSE
VCC SENSE
ALERT
ADM1192
SETV
SDA
SCL
CLRB
TIMER
GND ADR
CONTROLLER
INTERRUPT
P = VI
SDA
SCL
CLRB
Figure 2. Applications Diagram
The ALERT output can be used as a flag to warn a micro-
controller or field programmable gate array (FPGA) of an
overcurrent condition. ALERT outputs of multiple ADM1192
devices can be tied together and used as a combined alert.
A basic P-channel FET hot swap circuit can be implemented
with the ALERT output. The value of the TIMER capacitor
should be set so that the charging time of this capacitor is much
longer than the period during which a higher than nominal
inrush current may be flowing.
The ADM1192 is packaged in a 10-lead MSOP.
Rev. D
Document Feedback
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700 ©2006–2013 Analog Devices, Inc. All rights reserved.
Technical Support
www.analog.com
|
| |
 
ADM1192
Data Sheet
Parameter
TIMER PIN
Pull-Up Current (Overcurrent Fault), ITIMERUPOC
Pull-Down Current, ITIMERDN
Pin Threshold High, VTIMERH
ALERT PIN
Output Low Voltage, VALERTOL
Input Current, IALERT
ADR PIN
Set Address to 00, VADRLOWV
Set Address to 01, RADRLOWZ
Set Address to 10, IADRHIGHZ
Set Address to 11, VADRHIGHV
Input Current for 00 Decode, IADRLOW
Input Current for 11 Decode, IADRHIGH
I2C TIMING
Low Level Input Voltage, VIL
High Level Input Voltage, VIH
Low Level Output Voltage on SDA, VOL
Output Fall Time on SDA from VIHMIN to VILMAX
Maximum Width of Spikes Suppressed by
Input Filtering on SDA Pin and SCL Pin
Input Current, II, on SDA/SCL When Not
Driving a Logic Low Output
Input Capacitance on SDA/SCL
SCL Clock Frequency, fSCL
Low Period of the SCL Clock
High Period of the SCL Clock
Setup Time for Repeated Start Condition, tSU;STA
SDA Output Data Hold Time, tHD;DAT
Setup Time for a Stop Condition, tSU;STO
Bus Free Time Between a Stop and a Start
Condition, tBUF
Capacitive Load for Each Bus Line
Min
−46
1.275
−1
0
80
−0.3
2
−40
Typ
−62
100
1.3
0.05
1
120
−25
3
0.7 VBUS
20 + 0.1 CBUS
50
−10
5
600
1300
600
100
600
1300
Max Unit Test Conditions/Comments
−78 µA (18.125 × VSENSE) > VSETV, VTIMER = 1 V
µA Normal operation, VTIMER = 1 V
1.325 V
TIMER rising
0.1 V IALERT = −100 µA
1.5 mA IALERT = −2 mA
+1 µA VALERT = VCC; ALERT asserted
0.8 V Low state
160 kΩ Resistor to ground state, load pin with
specified resistance for 01 decode
+0.3 µA Open state, maximum load allowed on
ADR pin for 10 decode
5.5 V High state
µA VADR = 0 V to 0.8 V
6 µA VADR = 2.0 V to 5.5 V
0.3 VBUS
0.4
250
250
V
V
V
ns
ns
VBUS = 3.0 V to 5.5 V
VBUS = 3.0 V to 5.5 V
IOL = 3 mA
CBUS = bus capacitance from SDA to GND
+10 µA
pF
400 kHz
ns
ns
ns
900 ns
ns
ns
400 pF
1 Monitoring accuracy is a measure of the error in a code that is read back for a particular voltage/current. This is a combination of amplifier error, reference error, ADC
error, and error in ADC full-scale code conversion factor.
2 This is an absolute value to be used when converting ADC codes to current readings; any inaccuracy in this value is factored into absolute current accuracy values (see the
Specifications for the Current Sense Absolute Accuracy parameter).
3 These are absolute values to be used when converting ADC codes to voltage readings; any inaccuracy in these values is factored into voltage accuracy values (see the
Specifications for the Voltage Sense Accuracy parameter).
4 Time between the receipt of the command byte and the actual ADC result being placed in the register.
Rev. D | Page 4 of 20
Preview 5 Page |
Part DetailsOn this page, you can learn information such as the schematic, equivalent, pinout, replacement, circuit, and manual for ADM1192 electronic component. |
| Information | Total 21 Pages | |
| Link URL | [ Copy URL to Clipboard ] | |
| Download | [ ADM1192.PDF Datasheet ] | |
Share Link :
Electronic Components Distributor
|
An electronic components distributor is a company that sources, stocks, and sells electronic components to manufacturers, engineers, and hobbyists. |
| SparkFun Electronics | Allied Electronics | DigiKey Electronics | Arrow Electronics |
| Mouser Electronics | Adafruit | Newark | Chip One Stop |
Featured Datasheets
| Part Number | Description | MFRS |
| ADM1191 | The function is Digital Power Monitor. Analog Devices | |
| ADM1192 | The function is Digital Power Monitor. Analog Devices | |
Semiconductors commonly used in industry:
1N4148 |
BAW56 |
1N5400 |
NE555 | | ||
Quick jump to:
ADM1
1N4
2N2
2SA
2SC
74H
BC
HCF
IRF
KA | ||