PCA9546APWR
The PCA9546APWR is an electronic component from NXP Semiconductors. View the full PCA9546APWR datasheet below including electrical characteristics, absolute maximum ratings.
Manufacturer
NXP Semiconductors
Overview
Part: PCA9546A — Texas Instruments
Type: Quad Bidirectional Translating I2C Bus Switch
Description: A quad bidirectional translating switch controlled via the I2C bus, allowing voltage-level translation between 1.8-V, 2.5-V, 3.3-V, and 5-V buses, with an operating power-supply voltage range of 2.3 V to 5.5 V and supporting 0 to 400-kHz clock frequency.
Operating Conditions:
- Supply voltage: 2.3 V to 5.5 V
- Operating temperature: -40 to 85 °C
- I2C clock frequency: 0 to 400 kHz
Absolute Maximum Ratings:
- Max supply voltage: 7 V
- Max continuous current through VCC/GND: ±100 mA
- Max junction/storage temperature: 150 °C
Key Specs:
- Power-on reset voltage (VPOR): 1.9 V (min) to 2.1 V (max) at VCC = 3.3 V
- Switch on-state resistance (RON): 7 Ω (typ) to 16 Ω (max) at VCC = 2.3 V to 2.7 V, IO = 10 mA
- IOL SCL, SDA: 3 mA (min) to 7 mA (typ) at VCC = 2.3 V to 5.5 V, VOL = 0.4 V
- Operating supply current (ICC): 3 μA (typ) to 12 μA (max) at VCC = 5.5 V, fSCL = 100 kHz
- Standby supply current (ICC): 0.3 μA (typ) to 1 μA (max) at VCC = 5.5 V
- I2C clock frequency (fSCL): 0 to 400 kHz (Fast Mode)
- I2C bus capacitive load (Cb): 400 pF (max)
Features:
- 1-of-4 Bidirectional Translating Switches
- I2C Bus and SMBus Compatible
- Active-Low Reset Input
- Three Address Pins, Allowing up to Eight Devices on the I2C Bus
- Channel Selection Via I2C Bus
- Power Up With All Switch Channels Deselected
- Low RON Switches
- Allows Voltage-Level Translation Between 1.8-V, 2.5-V, 3.3-V, and 5-V Buses
- No Glitch on Power Up
- Supports Hot Insertion
- Low Standby Current
- 5.5-V Tolerant Inputs
Applications:
Package:
- QFN - RGV
- QFN - RGY
- SOIC - DW
- TSSOP - PW
- TVSOP - DGV
Features
- 1-of-4 Bidirectional Translating Switches
- I 2 C Bus and SMBus Compatible
- Active-Low Reset Input
- Three Address Pins, Allowing up to Eight Devices on the I 2 C Bus
- Channel Selection Via I 2 C Bus
- Power Up With All Switch Channels Deselected
- Low R ON Switches
- Allows Voltage-Level Translation Between 1.8-V, 2.5-V, 3.3-V, and 5-V Buses
- No Glitch on Power Up
Electrical Characteristics
over recommended operating free-air temperature range (unless otherwise noted)
| PARAMETER | TEST CONDITIONS | TEST CONDITIONS | V CC | MIN | TYP (1) | MAX | UNIT | |
|---|---|---|---|---|---|---|---|---|
| V POR Power-on reset voltage (2) | V POR Power-on reset voltage (2) voltage | No load, | V I = V CC or GND | V POR 5 V 4.5 V to 5.5 V 3.3 V | 3.6 2.6 1.9 | 1.6 | 2.1 4.5 | V V |
| V pass Switch | V pass Switch | V SWin = V CC , | I SWout = -100 μ A | 3 V to 3.6 V 2.5 V 2.3 V to 2.7 V | 1.6 1.1 | 1.5 | 2.8 2 | |
| V OL = 0.4 V | 2.3 V to 5.5 V | 3 | 7 | mA | ||||
| I OL SCL, SDA | I OL SCL, SDA | V OL = 0.6 V | 2.3 V to 5.5 V | 6 | 10 | mA | ||
| SCL, SDA | SCL, SDA | V I = V CC or GND | ± 1 | |||||
| SC3-SC0, SD3-SD0 | SC3-SC0, SD3-SD0 | ± 1 | ||||||
| I I A2-A0 | I I A2-A0 | 2.3 V to 5.5 V | ± 1 | μ A | ||||
| RESET | RESET | ± 1 | ||||||
| f SCL = 100 kHz | V I = V CC or GND, | = 0 | 5.5 V | 3 | 12 | |||
| Operating | Operating | I O | 3.6 V 2.7 V 5.5 V | 3 | 3 0.3 | 11 10 1 | ||
| I CC | Low inputs | V I = GND, | I O = 0 | 3.6 V 2.7 V | 0.1 0.1 | 1 1 | μ A | |
| Standby | Standby | 5.5 V | 0.3 | 1 | ||||
| High inputs | V I = V CC , SCL or SDA input at 0.6 | I O = 0 V, | 3.6 V 2.7 V | 0.1 0.1 8 | 15 | 1 1 | ||
| Supply-current ∆ I | SCL, SDA | Other inputs at CC | V or GND | μ A | ||||
| CC change | CC change | SCL or SDA input at V CC - 0.6 V, Other inputs at V or GND CC | SCL or SDA input at V CC - 0.6 V, Other inputs at V or GND | 2.3 V to 5.5 V | 8 4.5 | 15 | 6 | |
| A2-A0 C i | A2-A0 C i | V I = V CC or GND | 2.3 V to 5.5 V | 4.5 15 | 5.5 19 | pF | ||
| SCL, SDA | SCL, SDA | V I = V CC or GND, | Switch OFF | 2.3 V to 5.5 V | pF | |||
| C io(OFF) (3) SC3-SC0, | SD3-SD0 | 6 | 8 | |||||
| I = 15 mA | 4.5 V to 5.5 V | 4 | 9 | 16 | Ω | |||
| R ON Switch on-state | resistance | V O = 0.4 V, | O | 3 V to 3.6 V | 5 | 11 | 20 45 | |
| V O = 0.4 V, | I = 10 mA O | 2.3 V to 2.7 V | 7 | 16 |
SCPS148A-OCTOBER 2005-REVISED DECEMBER 2005
Absolute Maximum Ratings
over operating free-air temperature range (unless otherwise noted)
| MIN | MAX | UNIT | |||
|---|---|---|---|---|---|
| V CC | Supply voltage range | Supply voltage range | -0.5 | 7 | V |
| V I | Input voltage range (2) | Input voltage range (2) | -0.5 | 7 | V |
| I I | Input current | Input current | ± 20 | mA | |
| I O | Output current | Output current | ± 25 | mA | |
| Continuous current through V CC | Continuous current through V CC | ± 100 | mA | ||
| Continuous current through GND | Continuous current through GND | ± 100 | mA | ||
| θ JA | DGV package | 120 | ° C/W | ||
| DW package | 57 | ° C/W | |||
| Package | PW package | 108 | ° C/W | ||
| RGV package | TBD | ° C/W | |||
| RGY package | 50 | ° C/W | |||
| P tot | Total power dissipation | Total power dissipation | 400 | mW | |
| T stg | Storage temperature range | Storage temperature range | -65 | 150 | ° C |
| T A | Operating free-air temperature range | Operating free-air temperature range | -40 | 85 | ° C |
(1) Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under "recommended operating conditions" is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
- (2) The input negative-voltage and output voltage ratings may be exceeded if the input and output current ratings are observed.
(3) The package thermal impedance is calculated in accordance with JESD 51-7.
Recommended Operating Conditions
| MIN MAX | UNIT | ||||
|---|---|---|---|---|---|
| V CC | Supply voltage | 2.3 | 5.5 | V | |
| V IH | High-level input voltage | SCL, SDA | 0.7 × V CC | 6 | V |
| A2-A0, RESET | 0.7 × V CC | V CC + 0.5 | V | ||
| V IL | Low-level input voltage | SCL, SDA | -0.5 | 0.3 × V CC | V |
| V IL | Low-level input voltage | A2-A0, RESET | -0.5 | 0.3 × V CC | V |
| T A | Operating free-air temperature | -40 | 85 | ° C |
Typical Application
Figure 12 shows an application in which the PCA9546A can be used.
- A. Pin numbers shown are for the DGV, DW, PW, and RGY packages.
Figure 12. Typical Application
Related Variants
The following components are covered by the same datasheet.
| Part Number | Manufacturer | Package |
|---|---|---|
| PCA9546A | NXP Semiconductors | TVSOP (DGV) |
| PCA9546ADGVR | NXP Semiconductors | — |
| PCA9546ADGVT | NXP Semiconductors | — |
| PCA9546ADW | NXP Semiconductors | — |
| PCA9546ADWR | NXP Semiconductors | — |
| PCA9546ADWT | NXP Semiconductors | — |
| PCA9546AGQNR | NXP Semiconductors | — |
| PCA9546APW | NXP Semiconductors | — |
| PCA9546APWE4 | NXP Semiconductors | TVSOP |
| PCA9546APWT | NXP Semiconductors | — |
| PCA9546ARGWR | NXP Semiconductors | — |
| PCA9546ARGYR | NXP Semiconductors | — |
| PCA9546ARVR | NXP Semiconductors | — |
| PCA9546AZQNR | NXP Semiconductors | — |
Get structured datasheet data via API
Get started free