SBOS721A October   2014  – June 2022 TMP75B-Q1

PRODUCTION DATA  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Pin Configuration and Functions
  6. 6 Specifications
    1. 6.1 Absolute Maximum Ratings
    2. 6.2 ESD Ratings
    3. 6.3 Recommended Operating Conditions
    4. 6.4 Thermal Information
    5. 6.5 Electrical Characteristics
    6. 6.6 Typical Characteristics
  7. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Digital Temperature Output
      2. 7.3.2 Temperature Limits and Alert
      3. 7.3.3 Serial Interface
        1. 7.3.3.1  Bus Overview
        2. 7.3.3.2  Serial Bus Address
        3. 7.3.3.3  Writing and Reading Operation
        4. 7.3.3.4  Target-Mode Operations
          1. 7.3.3.4.1 Target Receiver Mode:
          2. 7.3.3.4.2 Target Transmitter Mode:
        5. 7.3.3.5  SMBus Alert Function
        6. 7.3.3.6  General Call
        7. 7.3.3.7  High-Speed (Hs) Mode
        8. 7.3.3.8  Timeout Function
        9. 7.3.3.9  Two-Wire Timing
        10. 7.3.3.10 Two-Wire Timing Diagrams
    4. 7.4 Device Functional Modes
      1. 7.4.1 Continuous-Conversion Mode
      2. 7.4.2 Shutdown Mode
      3. 7.4.3 One-Shot Mode
    5. 7.5 Programming
    6. 7.6 Register Map
  8. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Application
      1. 8.2.1 Design Requirements
      2. 8.2.2 Detailed Design Procedure
      3. 8.2.3 Application Curve
  9. 9 Power-Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
  11. 11Device and Documentation Support
    1. 11.1 Documentation Support
      1. 11.1.1 Related Documentation
    2. 11.2 Trademarks
  12. 12Mechanical, Packaging, and Orderable Information

Package Options

Mechanical Data (Package|Pins)
Thermal pad, mechanical data (Package|Pins)
Orderable Information

7.6 Register Map

Table 7-5 describes the registers available in the TMP75B-Q1 with their pointer addresses, followed by the description of the bits in each register.

Table 7-5 Register Map and Pointer Addresses
P1P0REGISTER
00Temperature register (read only, default)
01Configuration register (read/write)
10TLOW register (read/write)
11THIGH register (read/write)
Figure 7-8 Pointer Register (pointer = N/A) [reset = 00h]
76543210
ReservedP1P0
W-0hW-0hW-0h
LEGEND: R/W = Read/Write; R = Read only; W = Write only; -n = value after reset
Figure 7-9 Temperature Register (pointer = 0h) [reset = 0000h]
15141312111098
T11T10T9T8T7T6T5T4
R-0h
76543210
T3T2T1T0Reserved
R-0hR-0h
LEGEND: R/W = Read/Write; R = Read only; -n = value after reset
Table 7-6 Temperature Register Description
NameDescription
T11 to T4The 8 MSBs of the temperature result (resolution of 1°C)
T3 to T0The 4 LSBs of the temperature result (resolution of 0.0625°C)

 

Figure 7-10 Configuration Register (pointer = 1h) [reset = 00FFh]
15141312111098
OSCRFQPOLTMSD
R/W-0hR/W-0hR/W-0hR/W-0hR/W-0hR/W-0h
76543210
Reserved
R-FFh
LEGEND: R/W = Read/Write; R = Read only; -n = value after reset
Table 7-7 Configuration Register Description
NameDescription
OSOne-shot mode

In shutdown (SD = 1), write 1 to start a conversion. OS always reads back 0.

CRConversion rate control

CR = 0h: 37-Hz conversion rate (typ) (default)

CR = 1h: 18-Hz conversion rate (typ)

CR = 2h: 9-Hz conversion rate (typ)

CR = 3h: 4-Hz conversion rate (typ)

FQFault queue to trigger the ALERT pin

FQ = 0h: 1 fault (default)

FQ = 1h: 2 faults

FQ = 2h: 4 faults

FQ = 3h: 6 faults

POLALERT polarity control

POL = 0: ALERT is active low (default)

POL = 1: ALERT is active high

TMALERT thermostat mode control

TM = 0: ALERT is in comparator mode (default)

TM = 1: ALERT is in interrupt mode

SDShutdown control bit

SD = 0: Device is in continuous conversion mode (default)

SD = 1: Device is in shutdown mode

Figure 7-11 TLOW: Temperature Low Limit Register (pointer = 2h) [reset = 4B00h](1)
15141312111098
L11L10L9L8L7L6L5L4
R/W-4Bh
76543210
L3L2L1L0Reserved
R/W-0hR-0h
LEGEND: R/W = Read/Write; R = Read only; -n = value after reset
(1) 4B00h = 75°C.
Table 7-8 TLOW Register Description
NameDescription
L11 to L4The 8 MSBs of the temperature low limit (resolution of 1°C)
L3 to L0The 4 LSBs of the temperature low limit (resolution of 0.0625°C)

 

Figure 7-12 THIGH: Temperature High Limit Register (pointer = 3h) [reset = 5000h](1)
15141312111098
H11H10H9H8H7H6H5H4
R/W-50h
76543210
H3H2H1H0Reserved
R/W-0hR-0h
LEGEND: R/W = Read/Write; R = Read only; -n = value after reset
(1) 5000h = 80°C.
Table 7-9 THIGH Register Description
NameDescription
H11 to H4The 8 MSBs of the temperature high limit (resolution of 1°C)
H3 to H0The 4 LSBs of the temperature high limit (resolution of 0.0625°C)