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WWW.INTERSIL.COM
PRODUCT BRIEF
Intersil Industrial and Consumer Solutions
Industrial
Consumer
Intersil’s Digital Power Monitoring
Solutions
Intersil’s Digital Power Monitoring (DPM) devices provide a bi-directional high-side and
low-side digital current sense and voltage monitor with serial interface. The device
monitors current and voltage and provides the results digitally along with calculated
power. The DPM provides tight accuracy with 16-bit ADC for both voltage and current
monitoring over the entire input range. The DPM handles common-mode input voltage
ranging from 0V to 60V. The wide range permits the device to handle telecom, automotive
and industrial applications with minimal external circuitry. Both high and low-side
ground sensing applications are easily handled with the flexible architecture.
ISL28023
Full Featured Precision Digital Power
Monitor
The ISL28023 is a bi-directional 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 auxiliary input
provides an additional power monitor function.
The ISL28023 serial interface is PMBus compatible and operates
down to 1.2V voltage. It draws an average current of just 800µA
typ and is available in the space saving 24 Ld QFN 4mmx4mm
package. The parts operate over the full industrial temperature
range from -40°C to +125°C.
Key Features
• Bus Voltage/Shunt Sense Range ( 0 to 60V)
• Voltage/Current Gain Error (0.05% typ)
• High/Low-Side & Bi-directional Current Sensing
• 16-bit native resolution ADC
• Programmable Averaging Modes
• Real Time Alerts: User Defined - Over/Under Voltage and Current
Fault Monitoring with 500ns Detection Delay
• I
2
C/SMBus/PMBus Interface (accepts 1.2V Supply)
• 55 I
2
C Slave Addresses
• Operation Temperature Range (-40°C to 125°C)
• Package (24Ld QFN)
Additional Feature Set
• Auxiliary Low Voltage Channel
• Internal 3.3V Regulator
• Internal Temperature Sense
• 8-Bit Voltage Output DAC
Product Portfolio
ISL28023
Full Featured Digital Power Monitor
ISL28022
Basic Digital Power Monitor
ISL28025
Digital Power Monitor in Tiny Package
Block Diagram
Typical Application Diagram
LOAD
VOUT =
(0.6 – DAC OUT)
* R2/R1
I C
SMBUS
SW MUX
FB
ISL85415
En
PG
Gnd
VCC,FS,SS
Vin
Lo
Phase
Sync,Comp
1uF
To SMBAlert1
0.1uF
Boot
Vin = 4.5V
36V
R2
R1
R3
Vmcu
GND
R_pullUp
R_pullUp
MCU
Vreg_in
Vreg_Out
Ext_Temp
Place
Diode Near
RSH
Evalboard
Available!
Evalboard
Available!
ISL28023EVKIT1Z
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WWW.INTERSIL.COM
PRODUCT BRIEF
Intersil Industrial and Consumer Solutions
Intersil’s Digital Power Monitoring Solutions
Printed in USA 4/14 © 2014 Intersil Americas LLC. All Rights Reserved. The following are trademarks or registered trademarks of Intersil Americas Inc.: Intersil and Intersil logo. All other trademarks are the property of the respective
trademark owners.
ISL28022
ISL28025
Basic Precision Digital
Power Monitor
The ISL28022 is a bi-directional high-side
and low-side digital current sense and
voltage monitor with serial interface.
The device monitors current and voltage
and provides the results digitally along
with calculated power. The digital power
monitor has configurable fault thresholds
and measurable ADC gain ranges.
Both high and low-side ground sensing
applications are easily handled with the
flexible architecture.
The ISL28022 consumes an average
current of just 700µA and is available in
the 10 Ld MSOP package. The ISL28022
is also offered in a space saving 16 Ld
QFN package. The part operates over the
extended temperature range from -40°C
to +125°C.
Precision Digital Power Monitor in Tiny Package
The ISL28025 is a bi-directional 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
auxiliary input provides an additional power monitor function.
The ISL28025 serial interface is PMBus compatible and operates down to 1.2V
voltage. It draws an average current of just 800µA typ and is available in the
space saving 16 Ball WLCSP package. The parts operate over the full industrial
temperature range from -40°C to +125°C.
Key Features
• Bus Voltage/Shunt Sense Range ( 0 to 60V)
• Voltage/Current Gain Error (0.3% max)
• High/Low-Side & Bi-directional Current Sensing
• 16-bit native resolution ADC
• Programmable Averaging Modes
• User Defined - Over/Under Voltage and Current Fault
Monitoring
• I
2
C/SMBus Interface
• 16 I
2
C Slave Addresses
• ESD (HBM of 8kV)
• Operation Temperature Range (-40°C to 125°C)
• Package (10Ld MSOP, 16Ld QFN)
Key Features
• Bus Voltage/Shunt Sense Range ( 0 to 60V)
• Voltage/Current Gain Error (0.05% typ)
• High/Low-Side & Bi-directional Current Sensing
• 16-bit native resolution ADC
• Programmable Averaging Modes
• Real Time Alerts: User Defined - Over/Under
Voltage and Current Fault Monitoring with 500ns
Detection Delay
• I
2
C/SMBus/PMBus Interface (accepts 1.2V Supply)
• 55 I
2
C Slave Addresses
• Operation Temperature Range (-40°C to 125°C)
• Package (16Ball WLCSP)
Additional Feature Set
• Auxiliary Low Voltage
Channel (Voltage
Monitor)
• Internal 3.3V Regulator
• Internal Temperature
Sense
RSH
VOUT = 12V
VRAIL = 2.3V
TO 5.5V
LOAD
REF
GEN
OSC
CNTRL
EN
PWM
CNTRL
FET
DRIVE
ISL97516
COMP
VDD
FB
GND
LX
SS
EN
FSEL
FROM ECLK/INT
I
2
C
SMBUS
A1
SCL
SDA
VINP
VINM
GND
ADC
16-BIT
ECLK/INT
REG
MAP
VCC
VBUS
A0
ISL28022 DPM
VRAIL
TO µC
SW MUX
TO EN
LOAD
I C
SMBUS
Vmcu
GND
R_pullUp
R_pullUp
MCU
Vreg_in
Vreg_Out
SW MUX
Vout
FB
ISL9110
3.3V
Buck/
Boost
En
PG
Gnd,
PGnd
Mode
PVin
Lo
Vin
1uF
LX2
LX1
10uF
RSH
Block Diagram
Block Diagram
Typical Application Diagram
Typical Application Diagram
Evalboard
Available!
Evalboard
Available!
Evalboard
Available!
Evalboard
Available!
ISL28022EVKIT1Z
ISL28022EV1Z
ISL28025EVKIT1Z