Overview
The INA232AIDDF is a supervisor And Reset IC made by Texas Instruments in a SOT-23-8 package with 8 pins. -300mV~48V -40℃~+125℃ 0.1uV/℃ 1.7V~5.5V 100pA 150dB 300uA 5.5V 50uV ±26V SOT-23-8 Current Sense Amplifiers ROHS.
PCBKit's library has its KiCad symbol (EasyEDA_Cloud:INA232AIDDFR, from EasyEDA) and its footprint (Package_TO_SOT_SMD:SOT-23-8, from KiCad's library), ready for a KiCad board. 13,278 are in stock at JLCPCB (part C5447660).
Symbol
Footprint
From the datasheet
14- Supply, least
- 1.7 V · VS, recommended operating min · p. 4
- Supply, most
- 5.5 V · VS, recommended operating max · p. 4
- Supply, absolute maximum
- 6 V · Vs, absolute max · p. 4
- Works from
- -40 °C · TA, recommended ambient min · p. 4
- Works up to
- 125 °C · TA, recommended ambient max · p. 4
- Junction, hottest
- 150 °C · TJ, absolute max · p. 4
- Takes working
- 300 µA · VS, quiescent current typical, VSENSE = 0 mV · p. 5
- Takes at most
- 500 µA · VS, quiescent current max, TA = –40°C to +125°C · p. 5
- Takes asleep
- 2.2 µA · VS, shutdown current typical · p. 5
- A pin gives at most
- 5 mA · Input current into any pin, absolute max · p. 4
- A pin gives at most
- 10 mA · SDA, ALERT open-drain output current, absolute max · p. 4
- Junction to air (DDF (SOT-23))
- 146.8 K/W · Junction-to-ambient thermal resistance · p. 4
- Junction to case (DDF (SOT-23))
- 70.5 K/W · Junction-to-case (top) thermal resistance · p. 4
- Junction to board (DDF (SOT-23))
- 67.1 K/W · Junction-to-board thermal resistance · p. 4
What it is and has
12- Sensing
- High-side or low-side current sensing · p. 1
- Measurements
- Current, voltage and power · p. 1
- Programmable full scale range
- 20mV / 80mV · p. 1
- Input common mode range
- –0.3 V to 48 V · p. 1
- ADC
- 16-bit · p. 1
- Current monitoring gain error
- 0.3% maximum · p. 1
- Current monitoring offset
- 50 µV maximum · p. 1
- Input bias current
- 10 nA maximum · p. 1
- Averaging
- Configurable averaging options · p. 1
- Alert
- Over and under current limits · p. 1
- Interface
- 1.2-V compliant I2C, SMBus · p. 1
- Package
- SOT23-8 · p. 1
Specifications
54| Parameter | Conditions | As printed | Page |
|---|---|---|---|
| Supply Voltage Vs | Over operating free-air temperature range | max 6 V | 4 |
| Differential (VIN+) - (VIN-) VIN+, VIN- | Over operating free-air temperature range | min -26 · max 26 V | 4 |
| Common - mode VIN+, VIN- | Minimum is GND – 0.3 V; over operating free-air temperature range | min -0.3 · max 50 V | 4 |
| SDA, SCL, ALERT, A0 VIO | Minimum is GND – 0.3 V; over operating free-air temperature range | min -0.3 · max 6 V | 4 |
| Input current into any pin | Over operating free-air temperature range | max 5 mA | 4 |
| Open-drain digital output current (SDA, ALERT) | Over operating free-air temperature range | max 10 mA | 4 |
| Operating Temperature TA | min -55 · max 150 °C | 4 | |
| Junction temperature TJ | max 150 °C | 4 | |
| Storage temperature Tstg | min -65 · max 150 °C | 4 | |
| Electrostatic discharge V(ESD) | Human body model (HBM), per ANSI/ESDA/JEDEC JS-001, all pins; ±2000 V | max 2000 V | 4 |
| Electrostatic discharge V(ESD) | Charged device model (CDM), per ANSI/ESDA/JEDEC JS-002, all pins; ±1000 V | max 1000 V | 4 |
| Common-mode input range VCM | Minimum is GND – 0.3 V; over operating free-air temperature range | min -0.3 · max 48 V | 4 |
| Operating supply range VS | Over operating free-air temperature range | min 1.7 · max 5.5 V | 4 |
| Ambient temperature TA | min -40 · max 125 °C | 4 | |
| Junction-to-ambient thermal resistance RθJA | INA232, DDF (SOT-23), 8 PINS | typ 146.8 °C/W | 4 |
| Junction-to-case (top) thermal resistance RθJC(top) | INA232, DDF (SOT-23), 8 PINS | typ 70.5 °C/W | 4 |
| Junction-to-board thermal resistance RθJB | INA232, DDF (SOT-23), 8 PINS | typ 67.1 °C/W | 4 |
| Junction-to-top characterization parameter ΨJT | INA232, DDF (SOT-23), 8 PINS | typ 4.1 °C/W | 4 |
| Junction-to-board characterization parameter YJB | INA232, DDF (SOT-23), 8 PINS | typ 66.7 °C/W | 4 |
| Common-mode rejection CMRR | VCM = –0.3 V to 48 V, TA = –40°C to 125°C; VS = 3.3 V, VSENSE = 0 mV | min 120 · typ 150 dB | 5 |
| Shunt voltage input range | ADCRANGE = 0; TA = 25°C, VS = 3.3 V, VIN- = VBUS = 12 V | min -81.9175 · max 81.92 mV | 5 |
| Shunt voltage input range | ADCRANGE = 1; TA = 25°C, VS = 3.3 V, VIN- = VBUS = 12 V | min -20.4794 · max 20.48 mV | 5 |
| Shunt offset voltage Vos | VCM = 12 V; TA = 25°C, VS = 3.3 V, VSENSE = 0 mV; maximum ±50 uV | max 50 uV | 5 |
| Shunt offset voltage drift dVos/dT | TA = –40°C to +125°C; VS = 3.3 V, VSENSE = 0 mV, VIN- = VBUS = 12 V; maximum ±0.1 uV/°C | max 0.1 uV/°C | 5 |
| IN– bus offset Voltage Vos_b | TA = 25°C, VS = 3.3 V, VSENSE = 0 mV, VIN- = VBUS = 12 V; maximum ±10 mV | max 10 mV | 5 |
| IN– bus offset voltage drift dVos_b/dT | TA = –40°C to +125°C; VS = 3.3 V, VSENSE = 0 mV, VIN- = VBUS = 12 V; maximum ±50 uV/°C | max 50 uV/°C | 5 |
| Power supply rejection ratio (Current measurements) PSRRSHUNT | VS = 1.7 V to 5.5 V, TA = –40°C to 125°C; VSENSE = 0 mV, VIN- = VBUS = 12 V; maximum ±10 uV/V | max 10 uV/V | 5 |
| Power supply rejection ratio (Voltage measurements) PSRRBUS | VS = 1.7 V to 5.5 V, TA = –40°C to 125°C, VIN– = 50 mV; VSENSE = 0 mV; maximum ±5 mV/V | max 5 mV/V | 5 |
| IN– input impedance ZIN– | Bus Voltage Measurement Mode; TA = 25°C, VS = 3.3 V, VSENSE = 0 mV, VIN- = VBUS = 12 V | typ 1.05 MΩ | 5 |
| Input Leakage IB_SHDWN | IN+, IN–, Shutdown Mode; TA = 25°C, VS = 3.3 V, VSENSE = 0 mV, VIN- = VBUS = 12 V | typ 0.1 · max 5 nA | 5 |
| Input bias current IB | IN+, IN–, Current Measurement Mode; TA = 25°C, VS = 3.3 V, VSENSE = 0 mV, VIN- = VBUS = 12 V | typ 0.1 · max 10 nA | 5 |
| Differential Input Impedance (IN+ to IN–) RDIFF | Shunt or Current Measurement Modes, VIN+ – VIN– < 82 mV; TA = 25°C, VS = 3.3 V, VIN- = VBUS = 12 V | typ 140 kΩ | 5 |
| ADC Resolution | TA = –40°C to 125°C; VS = 3.3 V, VSENSE = 0 mV, VIN- = VBUS = 12 V | typ 16 Bits | 5 |
| 1 LSB step size | Shunt Voltage, ADCRANGE = 0; TA = 25°C, VS = 3.3 V, VIN- = VBUS = 12 V | typ 2.5 uV | 5 |
| 1 LSB step size | Shunt Voltage, ADCRANGE = 1; TA = 25°C, VS = 3.3 V, VIN- = VBUS = 12 V | typ 625 nV | 5 |
| 1 LSB step size | Bus Voltage; TA = 25°C, VS = 3.3 V, VIN- = VBUS = 12 V | typ 1.6 mV | 5 |
| ADC Conversion-time | CT bit = 000; TA = –40°C to 125°C, VS = 3.3 V, VSENSE = 0 mV, VIN- = VBUS = 12 V | min 133 · typ 140 · max 147 us | 5 |
| ADC Conversion-time | CT bit = 001; TA = –40°C to 125°C, VS = 3.3 V, VSENSE = 0 mV, VIN- = VBUS = 12 V | min 194 · typ 204 · max 214 us | 5 |
| ADC Conversion-time | CT bit = 010; TA = –40°C to 125°C, VS = 3.3 V, VSENSE = 0 mV, VIN- = VBUS = 12 V | min 315 · typ 332 · max 349 us | 5 |
| ADC Conversion-time | CT bit = 011; TA = –40°C to 125°C, VS = 3.3 V, VSENSE = 0 mV, VIN- = VBUS = 12 V | min 559 · typ 588 · max 617 us | 5 |
| ADC Conversion-time | CT bit = 100; TA = –40°C to 125°C, VS = 3.3 V, VSENSE = 0 mV, VIN- = VBUS = 12 V | min 1.045 · typ 1.1 · max 1.155 ms | 5 |
| ADC Conversion-time | CT bit = 101; TA = –40°C to 125°C, VS = 3.3 V, VSENSE = 0 mV, VIN- = VBUS = 12 V | min 2.01 · typ 2.116 · max 2.222 ms | 5 |
| ADC Conversion-time | CT bit = 110; TA = –40°C to 125°C, VS = 3.3 V, VSENSE = 0 mV, VIN- = VBUS = 12 V | min 3.948 · typ 4.156 · max 4.364 ms | 5 |
| ADC Conversion-time | CT bit = 111; TA = –40°C to 125°C, VS = 3.3 V, VSENSE = 0 mV, VIN- = VBUS = 12 V | min 7.832 · typ 8.244 · max 8.656 ms | 5 |
| Shunt voltage gain error GSERR | TA = 25°C, VS = 3.3 V, VSENSE = 0 mV, VIN- = VBUS = 12 V; maximum ±0.3% | max 0.3 % | 5 |
| Shunt voltage gain error drift GS_DRFT | TA = –40°C to +125°C; VS = 3.3 V, VSENSE = 0 mV, VIN- = VBUS = 12 V | max 30 ppm/°C | 5 |
| VIN– voltage gain error GBERR | TA = 25°C, VS = 3.3 V, VSENSE = 0 mV, VIN- = VBUS = 12 V; maximum ±0.5% | max 0.5 % | 5 |
| VIN– voltage gain error drift GB_DRFT | TA = –40°C to +125°C; VS = 3.3 V, VSENSE = 0 mV, VIN- = VBUS = 12 V | max 50 ppm/°C | 5 |
| Integral Non-Linearity INL | TA = 25°C, VS = 3.3 V, VSENSE = 0 mV, VIN- = VBUS = 12 V; typical ±2 m% | typ 2 m% | 5 |
| Differential Non-Linearity DNL | TA = 25°C, VS = 3.3 V, VSENSE = 0 mV, VIN- = VBUS = 12 V; typical ±0.1 LSB | typ 0.1 LSB | 5 |
| Quiescent current IQ | VSENSE = 0 mV; TA = 25°C, VS = 3.3 V, VIN- = VBUS = 12 V | typ 300 · max 380 uA | 5 |
| Quiescent current IQ | IQ vs temperature, TA = –40°C to +125°C; VS = 3.3 V, VSENSE = 0 mV, VIN- = VBUS = 12 V | max 500 uA | 5 |
| Quiescent current IQ | Shutdown; TA = 25°C, VS = 3.3 V, VSENSE = 0 mV, VIN- = VBUS = 12 V | typ 2.2 · max 3 uA | 5 |
| Power-on reset threshold VPOR | VS falling; TA = 25°C, VSENSE = 0 mV, VIN- = VBUS = 12 V | typ 0.95 V | 5 |
Pins, by the datasheet
8- 1 IN+
- Current sensing positive input; connect to the bus voltage side of the sense resistor for high-side applications or the load side for low-side applications. · p. 3
- 2 IN–
- Current sensing negative input; connect to the load side of the sense resistor for high-side applications or the ground side for low-side applications; bus voltage measurements are made with respect to this pin. · p. 3
- 3 GND
- Ground for both analog and digital. · p. 3
- 4 VS
- Power supply, 1.7 V to 5.5 V. · p. 3
- 5 SCL
- Serial bus clock line, open-drain input. · p. 3
- 6 SDA
- Serial bus data line, open-drain input/output. · p. 3
- 7 A0
- Address pin; connect to GND, SCL, SDA, or VS to select the address. · p. 3
- 8 ALERT
- Multifunctional alert output that reports fault conditions or notifies the host when a conversion is complete. · p. 3
Parameters
19- Common Mode Rejection Ratio (CMRR)
- 150dB
- Current - Supply(Max)
- 500uA
- Differential Voltage
- ±26V
- Features
- Low-side detection
- Ib - Input Bias Current
- 100pA
- Input Offset Voltage Drift(Vos TC)
- 0.1uV/℃
- Junction Temperature(Max)
- 150℃
- Operating Temperature
- -40℃~+125℃
- Output Current per Pin(Max)
- 5mA
- Quiescent Current
- 300uA
- Single Supply
- 1.7V~5.5V
- Standby Current
- 2.2uA
- Thermal Resistance(Junction to Ambient)
- 146.8℃/W
- Thermal Resistance(Junction to Board)
- 67.1℃/W
- Thermal Resistance(Junction to Case)
- 70.5℃/W
- Vcm - Common Mode Voltage
- -300mV~48V
- Voltage - Supply
- 1.7V~5.5V
- Voltage - Supply(Absolute Max)
- 6V
- Vos - Input Offset Voltage
- 50uV
Order codes
1- INA232AIDDFRLCSC C5447660
Pinout
8| Pin | Name | Type |
|---|---|---|
| 1 | IN+ | Unspecified |
| 2 | IN– | Unspecified |
| 3 | GND | Unspecified |
| 4 | VS | Unspecified |
| 5 | SCL | Unspecified |
| 6 | SDA | Unspecified |
| 7 | A0 | Unspecified |
| 8 | ALERT | Unspecified |
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Is there a KiCad symbol and footprint for the INA232AIDDF?
Yes. The symbol is EasyEDA_Cloud:INA232AIDDFR and the footprint Package_TO_SOT_SMD:SOT-23-8, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the INA232AIDDF?
SOT-23-8, with 8 pins. Its footprint is drawn on this page.
Where is the INA232AIDDF datasheet?
Texas Instruments publishes it: the Datasheet link on this page opens it.
Where can I order the INA232AIDDF?
JLCPCB lists it as part C5447660, with 13,278 in stock; the sellers' links on this page open their listings.
What can replace the INA232AIDDF?
Parts like it in the library: the MAX6369KA+T by Maxim Integrated (Analog Devices), the LTC2954CTS8-1#TRPBF by Analog Devices, the MAX6373KA+T by Maxim Integrated (Analog Devices) and the MAX6749KA+T by Maxim Integrated (Analog Devices). Check their datasheets: a part that fits the footprint may still differ in its ratings.
Parts like it
8
MAX6369KA+T
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SOT-23-8-40℃~+125℃@(Ta) 1 10uA 1V~5.5V 7.59ms Active Low No Push-pull Voltage Monitor Yes SOT-23-8 Supervisor and Reset ICs ROHSMaxim Integrated (Analog Devices)Supervisor And Reset ICsLTC2955CTS8-1#TRPBF
TSOT-23-80℃~+85℃ 1 1.5V~36V 500nA Active High Open-drain TSOT-23-8 Power Distribution Switches ROHSAnalog DevicesSupervisor And Reset ICsTPS3435CAKAGDDFR
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SOT-23-8-40℃~+125℃@(Ta) 1ms 2.5V~5.5V 8uA Active Low No Push-pull Watchdog Timer Yes SOT-23-8 Supervisor and Reset ICs ROHSMaxim Integrated (Analog Devices)Supervisor And Reset ICsMAX6371KA+T
SOT-23-8-40℃~+125℃@(TA) 100ms 2.5V~5.5V 20uA Active Low No Open Drain Watchdog Timer Yes SOT-23-8 Supervisor and Reset ICs ROHSMaxim Integrated (Analog Devices)Supervisor And Reset ICs