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PRODUCT BRIEF
Consumer
Industrial
Intersil Industrial and Consumer Solutions
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.
Product Portfolio
ISL28023
Full Featured Digital Power Monitor
ISL28022
Basic Digital Power Monitor
ISL28025
Digital Power Monitor in Tiny Package
ISL28023
Evalboard
Available!
ISL28023EVKIT1Z
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
Block Diagram
Vreg_Out
Vreg_in
1uF
Gnd
Lo
ISL85415
0.1uF
Boot
IC
SMBUS
VOUT =
(0.6 – DAC OUT)
* R2/R1
Ext_Temp
Place
Diode Near
RSH
R1
R_pullUp
R3
R_pullUp
To SMBAlert1
GND
FB
Vmcu
En
R2
Auxiliary Low Voltage Channel
Internal 3.3V Regulator
Internal Temperature Sense
8-Bit Voltage Output DAC
Phase
LOAD
•
•
•
•
36V
Vin
PG
Additional Feature Set
VCC,FS,SS
Vin = 4.5V
SW MUX
•
•
•
•
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
I2C/SMBus/PMBus Interface (accepts 1.2V Supply)
55 I2C Slave Addresses
Operation Temperature Range (-40°C to 125°C)
Package (24Ld QFN)
Sync,Comp
•
•
•
•
•
•
MCU
Typical Application Diagram
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PRODUCT BRIEF
Intersil Industrial and Consumer Solutions
Intersil’s Digital Power Monitoring Solutions
ISL28022
Basic Precision Digital
Power Monitor
EN
SS
CNTRL
EN
OSC
PWM
CNTRL
LOAD
REF
GEN
RSH
FSEL
VRAIL = 2.3V
TO 5.5V
VDD
LX
FET
DRIVE
GND
ISL97516
COMP
FB
TO EN
SW MUX
ISL28022 DPM
ADC
16-BIT
I2C
SMBUS
GND
VCC
SCL
A0
SDA
•
•
•
•
•
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
I2C/SMBus Interface
16 I2C Slave Addresses
ESD (HBM of 8kV)
Operation Temperature Range (-40°C to 125°C)
Package (10Ld MSOP, 16Ld QFN)
REG
MAP
•
•
•
•
•
•
VINP
Key Features
VINM
VBUS
VRAIL
Block Diagram
A1
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.
VOUT = 12V
FROM ECLK/INT
ECLK/INT
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.
ISL28022EVKIT1Z
ISL28022EV1Z
Evalboard
Available!
TO µC
Typical Application Diagram
ISL28025
Evalboard
Available!
ISL28025EVKIT1Z
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.
LX1
Lo
LX2
IC
SMBUS
FB
R_pullUp
R_pullUp
GND
Vmcu
En
SW MUX
Vout
PG
RSH
ISL9110
3.3V
Buck/
Boost
10uF
Vreg_in
Gnd,
PGnd
PVin
Vreg_Out
1uF
Block Diagram
LOAD
•
•
•
•
Additional Feature Set
Bus Voltage/Shunt Sense Range ( 0 to 60V)
• Auxiliary Low Voltage
Channel (Voltage
Voltage/Current Gain Error (0.05% typ)
Monitor)
High/Low-Side & Bi-directional Current Sensing
• Internal 3.3V Regulator
16-bit native resolution ADC
• Internal Temperature
Programmable Averaging Modes
Sense
Real Time Alerts: User Defined - Over/Under
Voltage and Current Fault Monitoring with 500ns
Detection Delay
I2C/SMBus/PMBus Interface (accepts 1.2V Supply)
55 I2C Slave Addresses
Operation Temperature Range (-40°C to 125°C)
Package (16Ball WLCSP)
Mode
•
•
•
•
•
•
Vin
Key Features
MCU
Typical Application Diagram
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