ZHCSL08C October 2019 – August 2021 TPS8804
PRODUCTION DATA
| PIN | I/O | DESCRIPTION | |
|---|---|---|---|
| NAME | NO. | ||
| AGND | 5 | I | Analog ground. Connect to ground plane. |
| AMUX | 33 | O | Analog multiplexer output. |
| CON | 35 | I | Negative terminal of CO operational amplifier. Connect to GND if unused. |
| COO | 34 | O | Output of CO operational amplifier. Connect to GND if unused. |
| COP | 36 | I | Positive terminal of CO operational amplifier. Connect to GND if unused. |
| CSA | 9 | I | LED driver A current sense. |
| CSB | 11 | I | LED driver B current sense. Connect to GND if unused. |
| CSEL | 29 | I | Device address select pin for I2C serial interface. Pull to GND for I2C address 0x3F. Pull to VMCU for I2C address 0x2A. Do not leave floating. |
| DGND | 32 | I | Digital ground. Connect to AGND. |
| DINA | 10 | I | LED driver A current sink. Connect to cathode of LED. |
| DINB | 12 | I | LED driver B current sink. Connect to cathode of LED. Connect to GND if unused. |
| GPIO | 26 | I/O | Multi-purpose digital input and output. |
| LEDEN | 31 | I | LED driver enable. Do not leave floating while device is powered. |
| LEDLDO | 4 | O | LDO output for charging LED supply capacitor. Connect to GND if unused. |
| MCU_RX | 25 | O | SLC interface output for receiving data from VLINE. |
| MCU_TX1 | 30 | I | Primary SLC interface input for transmitting data to VLINE. |
| MCU_TX2 | 16 | I | Secondary SLC interface input for transmitting data to VLINE. |
| MCUSEL | 13 | I | Default MCULDO voltage selection input. Leave floating for VMCU = 3.3 V. Tie to VINT for VMCU = 2.5 V. Tie to GND for VMCU = 1.8 V. Connect to GND with 620-Ω resistor for VMCU = 1.5 V. |
| PDN | 7 | I | Photo input amplifier negative input. Connect to cathode of photodiode. |
| PDO | 8 | O | Photo input amplifier output pin. |
| PDP | 6 | I | Photo input amplifier positive Input. Connect to anode of photodiode. |
| PGND | 17 | I | Power ground connection . Connect to AGND. |
| PLDO | 21 | O | Capacitor connection to PLDO regulator. |
| PREF | 37 | O | Photo reference voltage and output for testing CO sensor connectivity. |
| REF0P3 | 38 | O | 300mV reference. Connect to GND if unused. |
| RESERVED | 1, 2, 3, 18 | N/A | Connect to GND. |
| SCL | 27 | I | Clock input for I2C serial interface. |
| SDA | 28 | I/O | Data line for I2C serial interface. |
| SLC_RX | 24 | I | SLC interface input for receiving data from VLINE. |
| SLC_TX1 | 14 | O | Primary SLC interface output for transmitting data to VLINE. |
| SLC_TX2 | 15 | O | Secondary SLC interface output for transmitting data to VLINE. |
| VCC | 20 | I | Input supply pin. |
| VINT | 22 | O | Capacitor connection to internal supply LDO. |
| VMCU | 23 | I/O | LDO supply for external microcontroller and internal IO buffers. |
| VSLC | 19 | I | SLC transmitter supply. |
| Thermal Pad | 39 | N/A | Metal connection for thermal dissipation. Connect to ground plane. |