ISL28022FUZ-T7A
Digital Power MonitorThe ISL28022FUZ-T7A is a digital power monitor from Renesas / Intersil. View the full ISL28022FUZ-T7A datasheet below including key specifications, absolute maximum ratings.
Manufacturer
Renesas / Intersil
Category
Digital Power Monitor
Package
MSOP-10
Key Specifications
| Parameter | Value |
|---|---|
| Applications | Power Supply Monitor |
| Quiescent Current | 700 µA |
| DigiKey Programmable | Not Verified |
| Mounting Type | Surface Mount |
| Operating Temperature | -40°C ~ 125°C |
| Package / Case | 10-TFSOP, 10-MSOP (0.118", 3.00mm Width) |
| Packaging | MouseReel |
| Packaging | MouseReel |
| Standard Pack Qty | 250 |
| Standard Pack Qty | 250 |
| Supplier Device Package | 10-MSOP |
| Input Voltage Range | 0V ~ 60V |
| Supply Voltage | 3V ~ 5.5V |
Overview
Part: ISL28022
Type: Precision Digital Power Monitor
Description: A bidirectional high-side and low-side digital current sense and voltage monitor with serial interface, monitoring current and voltage and providing results digitally along with calculated power. It offers less than 0.3% accuracy for both voltage and current monitoring over a 0V to 60V input range.
Operating Conditions:
- Supply voltage: 3V to 5.5V
- Operating temperature: -40°C to +125°C
- Bus voltage sense range: 0V to 60V
Absolute Maximum Ratings:
- Max supply voltage: 6.0V
- Max junction temperature: +150°C
Key Specs:
- Useful Full-Scale Current Sense Differential Voltage Range (PGA gain = /8): ±320 mV
- LSB Step Size, Shunt Voltage: 10 μV
- Current Sense Common-Mode (VINP, VINM): 0 to 60 V
- V SENSE Offset Voltage (PGA gain = /1, /2, /4, /8; ADC setting = 1111): ±75 μV (max)
- Current Sense Gain Error: ±40 m% (typ)
- Useful Bus Voltage Range (BRNG = 2, 3): 0 to 60 V
- LSB Step Size, Bus Voltage (BRNG = 0): 4 mV
- Input Leakage, VIN Pins (Active mode): ±20 μA (typ)
Features:
- Bidirectional high-side and low-side digital current sense and voltage monitor
- 16-bit ΣΔ ADC monitors current and voltage
- Voltage measuring error <0.3%
- Current measuring error <0.3%
- Handles negative system voltage
- Overvoltage/undervoltage and current fault monitoring
- I2C/SMBus interface
- Supports high speed I2C (3.4MHz)
- Configurable fault thresholds and measurable ADC gain ranges
- Average current consumption: 700μA
Applications:
- Routers and servers
- DC/DC, AC/DC converters
- Battery management/charging
- Automotive power
- Power distribution
- Medical and test equipment
Package:
- 10 Ld MSOP
- 16 Ld QFN
Features
| • Bus voltage sense range. . | . 0V to 60V |
|---|---|
| • 16-bit ∑∆ ADC monitors current and voltage | • 16-bit ∑∆ ADC monitors current and voltage |
| • Voltage measuring error . . | . . . . <0.3% |
| • Current measuring error . . | . . . . <0.3% |
| • Handles negative system voltage | • Handles negative system voltage |
| • Overvoltage/undervoltage and current fault monitoring | • Overvoltage/undervoltage and current fault monitoring |
| • I 2 C/SMBus interface • Wide V CC range . . . . . . . . . | 3V to 5.5V |
| • ESD (HBM). . . . . . . . . . . . . . | . . . . . . 8kV |
| • Supports high speed I 2 C . | . . . 3.4MHz |
Applications
- Routers and servers
- DC/DC, AC/DC converters
- Battery management/charging
- Automotive power
- Power distribution
- Medical and test equipment
- Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
- Ordering Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
- Pin Configurations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
- Pin Descriptions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
- Absolute Maximum Ratings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
- Thermal Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
- Recommended Operating Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
- Electrical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
- Typical Performance Curves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
- Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
- Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
- . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
- Functional Pin Descriptions
- Register Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
- Serial Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
- Protocol Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
- SMBus Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
- Device Addressing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
- Write Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
- Read Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
- Broadcast Addressing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
- 2
- I C Clock Speed. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
- Signal Integrity. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
- Measurement Stability vs Acquisition Time. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
- Fast Transients. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
- External Clock. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
- Over-Ranging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
- Shunt Resistor Selection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
- Lossless Current Sensing (DCR). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
- Layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
- A Trace as a Sense Resistor. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
- . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
- Package Outline Drawings.
Pin Configuration
Absolute Maximum Ratings
| VCC. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | . . . . . . . . . . . .6.0V |
|---|---|
| VBUS Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | . . . . . . . . . . . . 63V |
| Common-Mode Input Voltage (VINP , VINM) . . . . . . . | . . . . . . . . . . . . 63V |
| Differential Input Voltage (VINP, VINM) . . . . . . . . . . . | . . . . . . . . . . . ±63V |
| Input Voltage (Digital Pins) . . . . . . . . . . . . . . . . . . . . . | (GND - 0.3V) to 5.5V |
| Output Voltage (Digital Pins). . . . . . . . . . . . . . . .(GND | 0.3V) to VCC + 0.3V |
| Open-Drain Output Current . . . . . . . . . . . . . . . . . . . . . | . . . . . . . . . . 10mA |
| Open-Drain Voltage (Interrupt) . . . . . . . . . . . . . . . . . . | . . . . . . . . . . . . 24V |
| ESD Rating | |
| Human Body Model (Tested per JESD22-A114). . | . . . . . . . . . . . . 8kV |
| Machine Model (Tested per JESD22-A115). . . . . . | . . . . . . . . . . . 400V |
| Charged Device Model (Tested per JESD22-C101) | . . . . . . . . . . . . 2kV |
| Latch-Up (Tested per JESD-78B). . . . . . . . . . . . . . . . . | . . 60V at +125°C |
Recommended Operating Conditions
Ambient Temperature Range (T A ) . . . . . . . . . . . . . . . . . . .-40°C to +125°C
CAUTION: Do not operate at or near the maximum ratings listed for extended periods of time. Exposure to such conditions may adversely impact product reliability and result in failures not covered by warranty.
- JA is measured in free air with the component mounted on a high-effective thermal conductivity test board with 'direct attach' features. See TB379.
- For JC , the 'case temp' location is the center of the exposed metal pad on the package underside.
- JA is measured with the component mounted on a high effective thermal conductivity test board in free air. See TB379 for details.
- For JC , the 'case temp' location is taken at the package top center.
Electrical Specifications T A = +25°C, V CC = 3.3, VINP = V BUS = 12V, V SENSE = VINP-VINM = 32mV, unless otherwise specified. All voltages with respect to GND pin.
| PARAMETER | DESCRIPTION | TEST CONDITIONS | MIN (Note 8) | TYP | MAX (Note 8) | UNIT |
|---|---|---|---|---|---|---|
| INPUTS | ||||||
| V SENSEDIFF | Useful Full-Scale Current Sense Differential Voltage Range (VINP-VINM) | PGA gain = /1 | 0 | ±40 | mV | |
| V SENSEDIFF | Useful Full-Scale Current Sense Differential Voltage Range (VINP-VINM) | PGA gain = /2 | 0 | ±80 | mV | |
| V SENSEDIFF | Useful Full-Scale Current Sense Differential Voltage Range (VINP-VINM) | PGA gain = /4 | 0 | ±160 | mV | |
| V SENSEDIFF | Useful Full-Scale Current Sense Differential Voltage Range (VINP-VINM) | PGA gain = /8 | 0 | ±320 | mV | |
| V SHUNT_ step | LSB Step Size, Shunt Voltage | 10 | μV | |||
| V CMSENSE | Current Sense Common-Mode (VINP, VINM) | 0 | 60 | V | ||
| V OS | V SENSE Offset Voltage | PGA gain = /1, /2, /4, /8; ADC setting = 1111 | ±10 | ±75 | μV | |
| V OSTC | V SENSE Offset Voltage Temperature Coefficient | 0.15 | μV/°C | |||
| CMRR | V SENSE V OS vs Common-Mode | V BUS = 0V to 60V; BRNG = 2, 3 | 110 | 130 | dB | |
| PSRR | V SENSE V OS vs Power Supply | V CC = 3V to 5V | 105 | dB | ||
| A CS | Current Sense Gain Error | ±40 | m% | |||
| A CSTC | Current Sense Gain Error Temperature Coefficient | ±1 | m%/°C | |||
| I VINACT | Input Leakage, VIN Pins | Active mode (for both VINP and VINM pins) | ±20 | μA | ||
| I VINACT | Input Leakage, VIN Pins | Power-down mode (for both VINP and VINM pins) | ±0.1 | ±0.5 | μA | |
| V BUS | Useful Bus Voltage Range | BRNG = 0 | 0 | 16 | V | |
| V BUS | Useful Bus Voltage Range | BRNG = 1 | 0 | 32 | V | |
| V BUS | Useful Bus Voltage Range | BRNG = 2, 3 | 0 | 60 | V | |
| V BUS_ Step | LSB Step Size, Bus Voltage | BRNG = 0 | 4 | mV | ||
| V BUS_ VCO | V BUS Voltage Coefficient | 50 | ppm/V | |||
| R VBACT | Input Impedance, VBUS Pin | Active mode | 600 | k Ω |
Electrical Specifications T A = +25°C, V CC = 3.3, VINP = V BUS = 12V, V SENSE = VINP-VINM = 32mV, unless otherwise specified. All voltages with respect to GND pin. (Continued)
| PARAMETER | DESCRIPTION | TEST CONDITIONS | MIN (Note 8) | TYP | MAX (Note 8) | UNIT |
|---|---|---|---|---|---|---|
| DC ACCURACY | ||||||
| ADC Resolution (Native) | PGA gain = /1, V SENSE = ±320mV | 16 | Bits | |||
| Current Measurement Error | T A = +25°C | ±0.2 | ±0.3 | % | ||
| Current Measurement Error | T A = -40°C to +85°C | ±0.5 | % | |||
| Over-Temperature | T A = -40°C to +125°C | ±1 | % | |||
| Bus | Voltage Measurement Error | T A = +25°C | ±0.2 | ±0.3 | % | |
| Bus | Voltage Measurement Error | T A = -40°C to +85°C | ±0.5 | % | ||
| Over-Temperature | T A = -40°C to +125°C | ±1 | % | |||
| ADC TIMING SPECS | ||||||
| t s | ADC Conversion Time | ADC setting = 0000 | 72.0 | 79.2 | μs | |
| Mode | = 5 or 6 | ADC setting = 0001 | 132.0 | 145.2 | μs | |
| ADC setting = 0010 | 258.0 | 283.8 | μs | |||
| ADC setting = 0011 | 508.0 | 558.8 | μs | |||
| ADC setting = 1001 | 1.01 | 1.11 | ms | |||
| ADC setting = 1010 | 2.01 | 2.21 | ms | |||
| ADC setting = 1011 | 4.01 | 4.41 | ms | |||
| ADC setting = 1100 | 8.01 | 8.81 | ms | |||
| ADC setting = 1101 | 16.01 | 17.61 | ms | |||
| ADC setting = 1110 | 32.01 | 35.21 | ms | |||
| ADC setting = 1111 | 64.01 | 70.41 | ms | |||
| I 2 C INTERFACE SPECIFICATIONS | I 2 C INTERFACE SPECIFICATIONS | |||||
| V IL | SDA and SCL Input Buffer LOW Voltage | -0.3 | 0.3 x V CC | V | ||
| V IH | SDA and SCL Input Buffer HIGH Voltage | 0.7 x V CC | V CC + 0.3 | V | ||
| Hysteresis | SDA and SCL Input Buffer Hysteresis | 0.05 x V CC | V | |||
| V OL | SDAOutputBuffer LOWVoltage, Sinking 3mA | V CC = 5V, I OL = 3mA | 0 | 0.02 | 0.40 | V |
| C PIN | SDA and SCL Pin Capacitance | T A = +25°C, f = 1MHz, V CC = 5V, V IN = 0V, V OUT = 0V | 10 | pF | ||
| f SCL | SCL Frequency | 400 | kHz | |||
| t IN | Pulse Width Suppression Time at SDA and SCL Inputs | Any pulse narrower than the maximum spec is suppressed | 50 | ns | ||
| t AA | SCL Falling Edge to SDA Output Data Valid | SCL falling edge crossing30%ofV CC , untilSDAexitsthe30%to70%ofV CC window. | 900 | ns | ||
| t BUF | Time the Bus Must be Free Before the Start of a New Transmission | SDA crossing 70% of V CC during a STOP condition, to SDA crossing70% of V CC during the following START condition. | 1300 | ns | ||
| t LOW | Clock LOW Time | Measured at the 30% of V CC crossing | 1300 | ns | ||
| t HIGH | Clock HIGH Time | Measured at the 70% of V CC crossing | 600 | ns | ||
| t SU:STA | START Condition Setup Time | SCL rising edge to SDA falling edge Both crossing 70% of V CC | 600 | ns | ||
| t HD:STA | START Condition Hold Time | From SDA falling edge crossing 30% of V CC to SCL falling edge crossing 70% of V CC | 600 | ns |
Electrical Specifications T A = +25°C, V CC = 3.3, VINP = V BUS = 12V, V SENSE = VINP-VINM = 32mV, unless otherwise specified. All voltages with respect to GND pin. (Continued)
| PARAMETER | DESCRIPTION | TEST CONDITIONS | MIN (Note 8) | TYP | MAX (Note 8) | UNIT |
|---|---|---|---|---|---|---|
| t SU:DAT | Input Data Setup Time | From SDA exiting the 30% to 70% of V CC window, to SCL rising edge crossing 30% of V CC | 100 | ns | ||
| t HD:DAT | Input Data Hold Time | From SCL falling edge crossing 30% of V CC to SDA entering the 30% to 70% of V CC window | 20 | 900 | ns | |
| t SU:STO | STOP Condition Setup Time | FromSCLrising edge crossing70%of V CC , to SDA rising edge crossing 30% of V CC | 600 | ns | ||
| t HD:STO | STOP Condition Hold Time | From SDA rising edge to SCL falling edge. Both crossing 70% of V CC . | 600 | ns | ||
| t DH | Output Data Hold Time | From SCL falling edge crossing 30% of V CC , until SDA enters the 30% to 70% of V CC window | 0 | ns | ||
| t R | SDA and SCL Rise Time | From 30% to 70% of V CC | 20 + 0.1 x Cb | 300 | ns | |
| t F | SDA and SCL Fall Time | From 70% to 30% of V CC | 20 + 0.1 x Cb | 300 | ns | |
| Cb | Capacitive Loading of SDA or SCL | Total on-chip and off-chip | 75 | pF | ||
| R PU | SDA and SCL Bus Pull-Up Resistor Off-Chip | Maximum is determined by t R and t F For Cb = 400pF, maximum is about 2k Ω ~2.5k Ω For Cb = 40pF, maximum is about 15k Ω ~20k Ω | 1 | k | ||
| POWER SUPPLY | POWER SUPPLY | POWER SUPPLY | POWER SUPPLY | POWER SUPPLY | POWER SUPPLY | POWER SUPPLY |
| Operating Supply Voltage Range | 3 | 5.5 | V | |||
| I CCEXT | Power Supply Current On V CC Pin, Active Mode | External power supply mode, V CC = 5V | 0.7 | 1.0 | mA | |
| I CCPD | Power Supply Current On V CC Pin, Power-Down Mode | External power supply mode, V CC = 5V | 5 | 15 | μA |
Thermal Information
Thermal Resistance (Typical)
JA (°C/W)
JC (°C/W)
16 Ld QFN (Notes 4, 5) . . . . . . . . . . . . . . . .
52
6.5
10 Ld MSOP (Notes 6, 7). . . . . . . . . . . . . . .
150
55
Maximum Storage Temperature Range . . . . . . . . . . . . . .-65°C to +150°C
Maximum Junction Temperature (T JMAX ) . . . . . . . . . . . . . . . . . . . . .+150°C
Pb-Free Reflow Profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . see TB493
Package Information
For the most recent package outline drawing, see M10.118.
M10.118 10 Lead Mini Small Outline Plastic Package Rev 2, 5/2021
Related Variants
The following components are covered by the same datasheet.
| Part Number | Manufacturer | Package |
|---|---|---|
| ISL28022 | Renesas / Intersil | — |
| ISL28022EV1Z | Renesas / Intersil | — |
| ISL28022FRZ | Renesas / Intersil | 16-VFQFN Exposed Pad |
| ISL28022FRZ-T | Renesas Electronics Corporation | QFN-16(3x3) |
| ISL28022FUZ | Renesas / Intersil | MSOP-10 |
| ISL28022FUZ-T | Renesas / Intersil | 10-TFSOP, 10-MSOP (0.118", 3.00mm Width) |
Data on this page is extracted from publicly available manufacturer datasheets using automated tools including AI. It may contain errors or omissions. Always verify specifications against the official manufacturer datasheet before making design or purchasing decisions. See our Terms of Service. Rights holders can submit a takedown request.
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