Sign In
Upload
Manuals
Brands
Texas Instruments Manuals
Measuring Instruments
BQ7961-Q1 Series
Texas Instruments BQ7961-Q1 Series Manuals
Manuals and User Guides for Texas Instruments BQ7961-Q1 Series. We have
1
Texas Instruments BQ7961-Q1 Series manual available for free PDF download: User Manual
Texas Instruments BQ7961-Q1 Series User Manual (45 pages)
Design Recommendations for High Voltage Automotive BMS
Brand:
Texas Instruments
| Category:
Measuring Instruments
| Size: 2.66 MB
Table of Contents
Table of Contents
1
NPN LDO Supply
3
Figure 1-1. Power Supply Schematic
3
AVDD, CVDD Outputs and DVDD, NEG5, REFHP and REFHM
4
Figure 2-1. Regulator Connection for Base Device
5
OTP Programming
6
Cell Voltage Sense (Vcn) and Cell Balancing (Cbn)
7
Figure 4-1. Cell Voltage Monitoring
7
Figure 4-2. Internal CB Diagram (no Adjacent Cell Balancing)
8
Figure 4-3. Cell Balancing Resistor Example Calculation
9
Figure 4-4. Adjacent Cell Balancing
10
Figure 4-5. External FET Cell Balancing
11
Figure 4-6. Connecting Fewer than 16 Cells
12
Bus Bar Support
13
Figure 5-1. Alternative Bus Bar Connection to the Lower Stack
14
Figure 5-2. Example of BBP/BBN Connections at Different Module Size
15
Figure 5-3. BBP/N Connection with Bus Bar Connected in any Middle VC Channel
16
Figure 5-4. BBP/N Connection with Bus Bar Connected above Top of a Module
17
Figure 5-5. Bus Bar Connected any Middle Individual VC Channel
18
Figure 5-6. Bus Bar Connected Individual VC Channel above the Top of a
19
Figure 5-7. Two Bus Bars Connections Using Two Different VC
20
Figure 5-8. Multiple Bus Bar Connections Utilizing the BBP/N Pins
21
Tsref
22
General Purpose Input-Output (GPIO) Configurations
22
Figure 5-9. Internal CB Diagram with the Bus Bar
22
Figure 7-1. GPIO Ratiometric Measurement
23
Figure 7-2. Example SPI Master Connections
24
Base and Bridge Device Configuration
25
Figure 7-3. 8 NTC Thermistors with SPI Slave Device
25
Figure 8-1. Communication with the Bridge Device
26
Figure 8-2. Using BQ79616-Q1 as Base Device with Isolation Circuit
26
Figure 8-3. Communication Pings
27
Figure 8-4. Communication Tones
27
Figure 8-5. Diagram for Ping/Tone Propagation
28
Daisy-Chain Stack Configuration
29
Table 8-1. UART Physical Layer Check List
29
Figure 9-1. Daisy Chain Structure with a Base Device
30
Figure 9-2. Daisy Chain Structure with a Bridge
31
Figure 9-3. Components Required for Cap Coupled Daisy Chain in the same PCB
32
Figure 9-4. Components Required for Cap Coupled Daisy Chain in Different PCB
32
Figure 9-5. Components Required for Cap-Choke Daisy Chain with Cabling
32
Figure 9-6. Components Required for Transformer Coupled Daisy Chain
33
Figure 9-7. Example of Changing Communication Direction in Daisy
34
Figure 9-8. Heartbeat or Fault Tone Traveling Direction
35
Multi-Drop Configuration
36
Figure 9-9. Re-Clocking Bit Compression Example
36
Figure 10-1. Multi-Drop Configuration
37
Main ADC Digital LPF
38
AUX Anti Aliasing Filter (AAF)
38
Table 11-1. Main ADC LPF F Cutoff for VCELL and Bus Bar Measurement
38
Table 12-1. AAF Settling Time
38
Layout Guidelines
39
Figure 13-1. Grounding Layout Consideration
40
Figure 13-2. Separate Ground Plane Per Device on the same PCB
41
BCI Performance
42
Common and Differential Mode Noise
42
Figure 13-3. Daisy Chain Layout Considerations
42
Figure 15-1. XY Caps
43
Revision History
44
Advertisement
Advertisement
Related Products
Texas Instruments bq27441-G1
Texas Instruments BQ79600-Q1
Texas Instruments BQ79606A-Q1
Texas Instruments BQ79606EVM
Texas Instruments BQ79616-Q1
Texas Instruments BQ79631EVM
Texas Instruments BQ79656-Q1
Texas Instruments BQ79612-Q1
Texas Instruments BQ79616EVM
Texas Instruments bq76920EVM
Texas Instruments Categories
Motherboard
Control Unit
Microcontrollers
Computer Hardware
Calculator
More Texas Instruments Manuals
Login
Sign In
OR
Sign in with Facebook
Sign in with Google
Upload manual
Upload from disk
Upload from URL