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Overview
| Topology | Battery Management System |
| Input voltage | 32 V |
| IC revision | 1 |
Description
The PAC1951/2/3/4 family of products are comprisedof one, two, three and four-channel energy monitorswith bus voltage monitors and current sense amplifiersthat feed high-resolution ADCs. There are two versionsof PAC195X: PAC195X-1 devices for high-side currentsensing and PAC195X-2 devices for high-side orlow-side current sensing or floating VBUS applications.Digital circuitry performs power calculations andenergy accumulation. This enables energy monitoringwith integration periods up to one year or longer. Busvoltage, sense resistor voltage and accumulatedproportional power are stored in registers for retrievalby the system host or embedded controller.PAC1951/2/3/4 has a set of digital comparators thatallow the user to detect over/undervoltage,over/undercurrent and overpower against userprogrammed limits for each channel and generate anALERT when the threshold is exceeded.The sampling rate and energy integration period can becontrolled over SMBus or I2C. Active channel selection,single-shot measurements and other controls are alsoconfigurable by the SMBus or I2C. PAC1951/2/3/4 usesreal-time calibration to minimize the offset error. Noinput filters are required for this device.
Features
- High-Side/Low-Side Current Monitor with One,Two, Three or Four Channels:
- Simultaneous Sampling of VBUS and VSENSEwith Two Independent 16-bit ADC
- 100 mV Full-Scale Range (FSR) for CurrentSense Voltage
- Programmable FSR: -50 mV to +50 mV
- 16-bit Resolution for Current Measurements
- External Sense Resistor Sets the Full-ScaleCurrent Range
- Very Low Input Current Simplifies Routing
- Voltage Monitor with Wide VBUS Range:
- 0V to 32V FSR
- 16V Programmable VBUS Option
- 16-bit RESOLUTION for Voltage Measurements
- VSOURCE Can Be Applied Before VDD Is Applied
- Real-Time Auto-Calibration of Offset Error forVoltage and Current
- 1% Power Measurement Accuracy over a WideDynamic Range
- On-Chip Accumulation of 30-bit Power Results forEnergy Measurement:
- User Programmable Sampling Rates of 8, 64,256 and 1,024 sps
- 5,120 sps for a Single Channel in Burst Mode
- 2.7V to 5.5V Supply Operation:
- 1.62 to 5.5V capable I2C/SMBus and digital I/O
- SMBus 3.1 and I2C Fast Mode Plus, 1 Mbps
- High-Speed Mode (3.4 Mbps)
- SMBus Address – 16 Options, Set with Resistor
- ALERT on Conversion Complete
- ALERT on Over/Undervoltage and Current orOverpower Conditions
- Coulomb Counting: When Selected, AccumulatorGathers VSENSE Values
- 8X Averaging Mode for Single-ShotMeasurements to Reduce Noise and Offset
- Two Independent ALERT/GPIO Pins
- AEC-Q100 Qualified (VQFN)
Typical applications
- Low Voltage BMS
More information
Products
| Order Code | Datasheet | Simulation | Downloads | Status | Product series | λDom typ. (nm) | Emitting Color | λPeak typ. (nm) | IV typ. (mcd) | VF typ. (V) | Chip Technology | 2θ50% typ. (°) | VIN | VOut1 (V (DC)) | IOut1 (A) | Type of Insulation | fswitch (kHz) | ∫Udt (Vµs) | NPRI : NSEC | L (µH) | VT (V (AC)) | L (mm) | W (mm) | H (mm) | Mount | Pins | IR (mA) | Working Voltage (V (AC)) | Z @ 100 MHz (Ω) | Zmax (Ω) | Test Condition Zmax | IR 2 (mA) | RDC max. (Ω) | Type | L1 (µH) | L2 (µH) | n | IR (mA) | IR (mA) | ISAT (A) | RDC1 typ (mΩ) | RDC2 typ (mΩ) | RDC1 max (mΩ) | RDC2 max (mΩ) | RDC 1 (Ω) | RDC 2 (Ω) | fres 1 (MHz) | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | 150060GS75000 | SPEC | 26 files RAY files
| Active i| Production is active. Expected lifetime: >10 years. | WL-SMCW SMT Mono-color Chip LED Waterclear | 525 | Green | 515 | 430 | 3.2 | InGaN | 140 | – | – | – | – | – | – | – | – | – | 1.6 | 0.8 | 0.7 | SMT | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | ||
| 150060RS75000 | SPEC | 26 files RAY files
| Active i| Production is active. Expected lifetime: >10 years. | WL-SMCW SMT Mono-color Chip LED Waterclear | 625 | Red | 630 | 250 | 2 | AlInGaP | 140 | – | – | – | – | – | – | – | – | – | 1.6 | 0.8 | 0.7 | SMT | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | ||
 | 742792640 | SPEC | 8 files | Active i| Production is active. Expected lifetime: >10 years. | WE-CBF SMT EMI Suppression Ferrite Bead | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | 1.6 | 0.8 | 0.8 | SMT | – | 300 | – | 300 | 1500 | 250 MHz | 750 | 0.35 | High Speed | – | – | – | 300 | 300 | – | – | – | – | – | – | – | – | ||
 | 742792118 | SPEC | 9 files | Active i| Production is active. Expected lifetime: >10 years. | WE-CBF SMT EMI Suppression Ferrite Bead | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | 3.2 | 1.6 | 1.1 | SMT | – | 1500 | – | 600 | 650 | 80 MHz | 2500 | 0.07 | High Current | – | – | – | 2500 | 1500 | – | – | – | – | – | – | – | – | ||
 | 7448841470 | SPEC | 8 files | Active i| Production is active. Expected lifetime: >10 years. | WE-DPC HV SMT Dual Powerchoke | – | – | – | – | – | – | – | – | – | – | – | – | – | – | 47 | 1500 | 5.2 | 5.2 | 3.1 | – | – | 600 | – | – | – | – | 600 | 1.2 | – | 47 | 47 | 1:1 | – | 600 | 0.7 | 840 | 840 | 1200 | 1200 | – | – | 18 | ||
 | 760390012 | SPEC | – | 8 files | Active i| Production is active. Expected lifetime: >10 years. | WE-PPTI Push-Pull Transformers | – | – | – | – | – | – | – | 5 V (DC) | 5 | 0.75 | Functional | 300 - 620 | 11 | 1:1.1 | 475 | 2500 | 6.73 | 10.2 | 4.19 | SMT | – | – | – | – | – | – | – | – | – | – | – | 1:1.1 | – | – | – | – | – | – | – | 0.31 | 0.33 | – | |
| 760390014 | SPEC | – | 8 files | Active i| Production is active. Expected lifetime: >10 years. | WE-PPTI Push-Pull Transformers | – | – | – | – | – | – | – | 5 V (DC) | 5 | 0.6 | Functional | 300 - 620 | 11 | 1:1.3 | 475 | 2500 | 6.73 | 10.2 | 4.19 | SMT | – | – | – | – | – | – | – | – | – | – | – | 1:1.3 | – | – | – | – | – | – | – | 0.31 | 0.37 | – | |
 | 61300211121 | SPEC | – | 7 files | Active i| Production is active. Expected lifetime: >10 years. | WR-PHD Pin Header - Single | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | 5.08 | – | – | THT | 2 | 3000 | 250 | – | – | – | – | – | Straight | – | – | – | – | – | – | – | – | – | – | – | – | – | |
 | 61300611021 | SPEC PCN pendingDue to a pending PCN, a modification of the component will be implemented soon. Please find the PCN below. If you have further questions please get in contact with our sales staff. | – | 7 files | Active i| Production is active. Expected lifetime: >10 years. | WR-PHD Pin Header - Single | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | 15.24 | – | – | THT | 6 | 3000 | 250 | – | – | – | – | – | Angled | – | – | – | – | – | – | – | – | – | – | – | – | – | |
 | 750315371 | SPEC | – | 8 files | Active i| Production is active. Expected lifetime: >10 years. | WE-PPTI Push-Pull Transformers | – | – | – | – | – | – | – | 4.5 - 5.5 V (DC) | 5 | 1 | Functional | 400 - 700 | 8.6 | 1:1.1 | 72 | 2500 | 8.3 | 12.6 | 4.1 | SMT | – | – | – | – | – | – | – | – | – | – | – | 1:1.1 | – | – | – | – | – | – | – | 0.09 | 0.09 | – |
| Order Code | Datasheet | Simulation | |
|---|---|---|---|
| 150060GS75000 | SPEC | |
| 150060RS75000 | SPEC | |
| 742792640 | SPEC | |
| 742792118 | SPEC | |
| 7448841470 | SPEC | |
| 760390012 | SPEC | – |
| 760390014 | SPEC | – |
| 61300211121 | SPEC | – |
| 61300611021 | SPEC PCN pendingDue to a pending PCN, a modification of the component will be implemented soon. Please find the PCN below. If you have further questions please get in contact with our sales staff. | – |
| 750315371 | SPEC | – |
| Samples |
|---|
| Order Code | Datasheet | Simulation | Downloads | Status | Product series | λDom typ. (nm) | Emitting Color | λPeak typ. (nm) | IV typ. (mcd) | VF typ. (V) | Chip Technology | 2θ50% typ. (°) | VIN | VOut1 (V (DC)) | IOut1 (A) | Type of Insulation | fswitch (kHz) | ∫Udt (Vµs) | NPRI : NSEC | L (µH) | VT (V (AC)) | L (mm) | W (mm) | H (mm) | Mount | Pins | IR (mA) | Working Voltage (V (AC)) | Z @ 100 MHz (Ω) | Zmax (Ω) | Test Condition Zmax | IR 2 (mA) | RDC max. (Ω) | Type | L1 (µH) | L2 (µH) | n | IR (mA) | IR (mA) | ISAT (A) | RDC1 typ (mΩ) | RDC2 typ (mΩ) | RDC1 max (mΩ) | RDC2 max (mΩ) | RDC 1 (Ω) | RDC 2 (Ω) | fres 1 (MHz) | Samples |
|---|
