SLVSE16C May 2019 – January 2020 TPS1HB08-Q1
PRODUCTION DATA.
Figure 43 shows the schematic of a typical application for version A or B of the TPS1HB08-Q1. It includes all standard external components. This section of the datasheet discusses the considerations in implementing commonly required application functionality. Version F of the device will replace the ILIM pin with the open drain FLT pin. In this case, the FLT pin must be connected to a 5 V rail through a 10 kΩ pull up resistor.
COMPONENT | TYPICAL VALUE | PURPOSE |
---|---|---|
RPROT | 15 kΩ | Protect microcontroller and device I/O pins |
RSNS | 1 kΩ | Translate the sense current into sense voltage |
CSNS | 100 pF - 10 nF | Low-pass filter for the ADC input |
RGND | 4.7 kΩ | Stabilize GND potential during turn-off of inductive load |
DGND | BAS21 Diode | Protects device during reverse battery |
RILIM | 5 kΩ - 25 kΩ | Set current limit threshold |
CVBB1 | 4.7 nF to Device GND | Filtering of voltage transients (for example, ESD, ISO7637-2) and improved emissions |
CVBB2 | 220 nF to Module GND | Stabilize the input supply and filter out low frequency noise. |
COUT | 220 nF | Filtering of voltage transients (for example, ESD, ISO7637-2) |