SNVSD24 August 2025 LP5814I
PRODUCTION DATA
- 1
- 1 Features
- 2 Applications
- 3 Description
- 4 Device Comparison
- 5 Pin Configuration and Functions
- 6 Specifications
- 7 Detailed Description
- 8 Application and Implementation
- 9 Device and Documentation Support
- 10Revision History
- 11Mechanical, Packaging, and Orderable Information
7.4.4 Shutdown Mode
The LP5814I supports shutdown mode to minimize the power consumption from VCC. The quiescent current from VCC decreases to 0.1μA (typical) in SHUTDOWN mode. The LP5814I provides two pairs of methods to control the device enter and exit SHUTDOWN mode.
- Figure 7-13 shows the method 1
- Enter shutdown, send Shutdown_command by writing 0x33 to register 0xD though I2C communication.
- Exit shutdown, toggle SDA 8 times to generate 8 falling edges while keeping SCL as high. The supported maximum toggle frequency for SDA is 100kHz.
- Figure 1-1 shows the method 2
- Enter shutdown, pull down SCL for 100ms while keeping SDA as high.
- Exit shutdown, pull up SCL to generate one rising edge regardless of SDA state.
Figure 7-13 Enter and Exit Shutdown Mode Method Pair 1
Figure 7-14 Enter and Exit Shutdown Mode Method Pair 2