SLVSHR0 May 2025 TPS2HCS08-Q1
PRODUCTION DATA
- 1
- 1 Features
- 2 Applications
- 3 Description
- 4 Device Comparison Table
- 5 Pin Configuration and Functions
- 6 Specifications
- 7 Parameter Measurement Information
-
8 Detailed Description
- 8.1 Overview
- 8.2 Functional Block Diagram
- 8.3 Device Functional Modes
- 8.4
Feature Description
- 8.4.1 Protection Mechanisms
- 8.4.2 Diagnostic Mechanisms
- 8.5 Parallel Mode Operation
- 8.6 TPS2HCS08 Registers
- 9 Application and Implementation
- 10Device and Documentation Support
- 11Revision History
- 12Mechanical, Packaging, and Orderable Information
封裝選項(xiàng)
機(jī)械數(shù)據(jù) (封裝 | 引腳)
- PWP|16
散熱焊盤機(jī)械數(shù)據(jù) (封裝 | 引腳)
- PWP|16
訂購信息
9.1 Application Information
Figure 9-1 and Figure 9-2 shows the schematic of a typical application of the TPS2HCS08A-Q1 and TPS2HCS08B-Q1, respectively. It includes all standard external components.
This section of the data sheet discusses the considerations in implementing commonly
required application functionality. The circuit assumes no reverse polarity protection
on the input supply, so additional components for protection are required.
Figure 9-1 System
Diagram - TPS2HCS08A-Q1
Figure 9-2 System Diagram - TPS2HCS08B-Q1With the ground protection
network, the device ground will be offset relative to the micro-controller ground.
The same power supply (5V (recommended) or 3.3V) source should be used for the
controller (MCU) I/O as well as the VDD supply input to the TPS2HCS08B-Q1 device.
Table 9-1 Recommended External
Components
| COMPONENT | TYPICAL VALUE | PURPOSE |
|---|---|---|
| RSPI | 22Ω | (Optional) For EMI or other transient limits on the SPI pins. |
| RSDO | 768Ω | Higher values to increase the total resistance to MCU VDD to 768 Ω for ground loss detection |
| RPROT | 10kΩ | Protect micro-controller and device GPIO pins |
| RPU | 4.7kΩ | Pull-up resistor |
| RSNS | 0.2-1.5kΩ | Translate the sense current into sense voltage for internal ADC input |
| CSNS | 1 - 4.7nF | Low-pass filter for the ADC input. |
| D1 | +/-36V | To suppress voltage transients (one for the module) |
| DGND | BAS21 / Schottky Diode | To limit the voltage drop across RGND during normal operation of the device. A low forward voltage diode is recommended and a schottky diode is suggested when the VDD is 3.3V. (Note: Recommended VDD operation is 5V for lower Iq) |
| RGND | 4.7kΩ | Maintain ground potential during negative output voltage excursions |
| RVDD | 10Ω | Limit the rate of rise / fall in VDD supply input- to the IC. |
| CVDD | 470nF | VDD supply voltage stability to system ground. |
| CVBB1 | 1nF to IC_GND | (Optional) For improved emissions. |
| CVBB2 | 100 – 2200nF to Module GND | Stabilize the input supply and filter out low frequency noise. |
| COUTx | 22nF - 100nF | Filtering of voltage transients (for example, ESD, ISO7637-2). If MANUAL_LPM mode is used and a schottky or TVS diode is not used at the output, 100nF is the recommended capacitor value for hot short-circuit protection in MANUAL_LPM. |