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PDF ISL28025 Data sheet ( Hoja de datos )
| Número de pieza | ISL28025 | |
| Descripción | Precision Digital Power Monitor | |
| Fabricantes | Intersil | |
| Logotipo |  |
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DATASHEET
Precision Digital Power Monitor with Real Time Alerts
ISL28025
The ISL28025 is a bidirectional high-side and low-side digital
current sense and voltage monitor with a serial interface. The
device monitors power supply current and voltage and
provides the digital results along with calculated power. The
ISL28025 provides tight accuracy of less than 0.1% for both
voltage and current monitoring.
The VCC power can either be externally supplied or internally
regulated, which allows the ISL28025 to handle a
common-mode input voltage range from 0V to 60V. The wide
range permits the device to handle telecom, automotive and
industrial applications with minimal external circuitry.
Fault indication includes Bus Voltage window and overcurrent
fast fault logic indication. The ISL28025 includes an integrated
temperature sensor for monitoring.
The ISL28025 serial interface is PMBus compatible and
operates down to 1.2V voltage. It draws an average current of
just 1.3mA and is available in the space saving 16 ball WLCSP
package. The parts operate across the full industrial
temperature range from -40°C to +125°C.
Related Literature
AN1955, “Design Ideas for Intersil Digital Power Monitors”
Features
• Bus voltage sense range . . . . . . . . . . . . . . . . . . . . . . 0V to 60V
• Voltage gain error. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.05%
• Current gain error. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.05%
• High or low (RTN) side sensing
• Bidirectional current sensing
• Auxiliary low voltage input channel
• ∆∑ADC, 16-bit native resolution
• Programmable averaging modes
• Internal 3.3V regulator
• Internal temperature sense
• Over/undervoltage and current fault monitoring with 500ns
detection delay
• I2C/SMBus/PMBus interface that handles 1.2V supply
• 55 I2C slave addresses
Applications
• Data processing servers
• DC power distribution
• Telecom equipment
• Portable communication equipment
• DC/DC, AC/DC converters
• Automotive power
• Many I2C ADC with alert applications
FROM 1.8V TO 5.5V
June 17, 2015
FN8388.3
PVIN
10µF
GND,
PGND
ISL9110
3.3V
BUCK/
BOOST
LX1
Lo
LX2
VOUT
PG En FB
ISL28025
VBUS
VINP
VINM
3.3V
Vreg
ADC
16-Bit
AuxV
TEMP
SENSE
PMBus
REG
MAP
SMBALERT1
A0 A1 A2
MCU
GPIO/Int
SCL
SDA
VCC
GND
SCL
SDA
SMBALERT2
/ECLK
I2CVCC
FIGURE 1. TYPICAL APPLICATION CIRCUIT
1 CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774 | Copyright Intersil Americas LLC 2014, 2015. All Rights Reserved
Intersil (and design) is a trademark owned by Intersil Corporation or one of its subsidiaries.
All other trademarks mentioned are the property of their respective owners.
1 page  
ISL28025
TABLE 1. DPM PORTFOLIO COMPARISON - ISL28022 vs ISL28023 vs ISL28025
DESCRIPTION
BASIC DIGITAL
POWER MONITOR
FULL FEATURE
DIGITAL POWER MONITOR
PART NUMBER
ISL28022
ISL28023
PACKAGE
MSOP10, QFN16
QFN24
Temperature Range
-40°C to +125°C
-40°C to +125°C
0V to 60V Input Range
0V to 60V
Opt 1: 0V to 60V
Opt 2: 0V to 16V
ADC
16-bit
16-bit
25°C Gain Error
0.30%
0.25%
Current Measure LSB Step
10µV
2.5µV
25°C Offset
75µV
30µV
Primary
Differential Shunt Input
X
X
Channel
Independent Bus Voltage
X
X
LV Aux
Differential Shunt Input
X
Channel
Independent Bus Voltage
X
VBus LSB Step
Low Voltage Bus
0.25mV
High Voltage Bus
4mV
1mV/0.25mV
External Temperature Sensor Input
X
HV Internal Regulator (3.3VOUT)
Fast OC/OV/UV Alert Outputs
X
2 Outputs
Margin DAC
X
Internal Temperature Sensor
X
User Select Conversion Mode/Sample Rate
X
X
Peak Min/Max Current Registers
X
Slave Address Locations
I2C Level Translators
16 Addresses
55 Addresses
X
PMBus
I2C/SMBus
High Speed (3.4MHz) I2C Mode
X
XX
XX
External Clock Input
XX
Power Shutdown Mode
XX
DIGITAL POWER MONITOR
IN TINY PACKAGE
ISL28025
WLCSP-16
-40°C to +125°C
Opt 1: 0V to 60V
Opt 2: 0V to 16V
16-bit
0.25%
2.5µV
30µV
X
X
X
0.25mV
1mV/0.25mV
X
2 Outputs
X
X
X
55 Addresses
X
X
X
X
X
X
Submit Document Feedback
5
FN8388.3
June 17, 2015
5 Page 
ISL28025
Typical Performance Curves TA = +25°C, VCC = 3.3V, VINP = VBUS = 12V, Auxv = 3V, conversion time;
Aux = Primary = 2.05ms, Internal AVG Aux = Primary = 128, unless otherwise specified.
7
6
5
4
3
2
1
0
VOS (µV)
FIGURE 3. PRIMARY VSHUNT VOS
50
40
30
T = +125°C
20
10
0
-10
-20 T = +25°C
-30
-40
-50
3.0 3.5 4.0
T = -40°C
4.5
VCC (V)
5.0
5.5
FIGURE 4. PRIMARY VSHUNT VOS vs VCC
6.0
8
7
6
5
4
3
2
1
0
VOS TC (µV/°C)
FIGURE 5. PRIMARY VSHUNT VOS TC (-40°C TO +125°C)
6
5
4
3
2
1
0
PRIMARY CMRR (nV/V)
FIGURE 7. PRIMARY VSHUNT CMRR, CMV = (0V TO 60V)
80
60
40
VCC = 5V VCC = 3.3V
20
0
-20
-40
-60 -40 -20 0
VCC = 3V
20 40 60 80 100 120 140 160
TEMPERATURE (°C)
FIGURE 6. PRIMARY VSHUNT VOS vs TEMPERATURE
500
400
300
200
100
0
-100
-200
-300
-400
-500-60 -40 -20
0
20 40 60 80 100 120 140 160
TEMPERATURE (°C)
FIGURE 8. PRIMARY VSHUNT CMRR vs TEMPERATURE
(CMV = 0V TO 60V)
Submit Document Feedback 11
FN8388.3
June 17, 2015
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet ISL28025.PDF ] | |
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