SLLSG00 April   2024 TCAN2450-Q1 , TCAN2451-Q1

ADVANCE INFORMATION  

  1.   1
  2. 1Features
  3. 2Applications
  4. 3Description
  5. 4Pin Configuration and Functions
  6. 5Device and Documentation Support
    1. 5.1 Documentation Support
      1. 5.1.1 CAN Transceiver Physical Layer Standards:
      2. 5.1.2 EMC Requirements:
      3. 5.1.3 Conformance Test Requirements:
      4. 5.1.4 Related Documentation
    2. 5.2 Receiving Notification of Documentation Updates
    3. 5.3 Support Resources
    4. 5.4 Trademarks
    5. 5.5 Electrostatic Discharge Caution
    6. 5.6 Glossary
  7. 6Revision History
  8. 7Mechanical, Packaging, and Orderable Information
    1. 7.1 Tape and Reel Information
    2. 7.2 Mechanical Data

Package Options

Refer to the PDF data sheet for device specific package drawings

Mechanical Data (Package|Pins)
  • RHB|32
Thermal pad, mechanical data (Package|Pins)
Orderable Information

4 Pin Configuration and Functions

GUID-20220113-SS0I-7C8N-9HV0-W1FWXG7KF0R3-low.svgFigure 4-1 RHB Package, 32 Pin (VQFN)
(Top View)
Table 4-1 Pin Functions
NAMEPIN NO.TYPE(1)DESCRIPTION
RHB
WAKE2/ID21IHigh voltage (HV) capable. Local wake input terminal.

Configurable as an ID pin

WAKE1/ID12IHV capable. Local wake input terminal. Configurable as an ID pin
LIMP/LSS3OHV capable. Limp home output (Active low; open-drain output)
HSS44OHV. High side switch 4 output
HSS35OHV. High side switch 3 output
HSS26OHV. High side switch 2 output
HSS17OHV. High side switch 1 output
VHSS8PHV. Separate input supply for the high side switches. Typically connected to the battery but can also be supplied independently.
VSUPB9PHV. Input supply from the battery for the buck regulator.

VSUPB and VSUP must be to the same battery supply, but separated by the EMI filter as shown in the application schematic to reduce the conducted EMI on the VSUP pin.

BUCKSW10PHV. Buck regulator switching node. Connect to power inductor.

GND

11

G

Ground

BOOT12PHV. Bootstrap supply voltage for internal high-side driver. Connect a high-quality 100nF capacitor from this pin to the BUCKSW pin.
VCC113PBuck regulator output 3.3V or 5V. Connect a high-quality capacitor to GND.
nRST14I/OLow-voltage (LV) digital. VCC1 under-voltage monitor output pin (active low) and device reset input
nINT15OLV digital. Interrupt output (active low)
SW16I

LV digital . Programming mode input pin (SPI configurable active high or active low).

Internal pull-up (active low configuration) or pull-down (active high configuration) of 60 kΩ

SCK17ILV digital. SPI clock input
SDI18I

LV digital. SPI data input.

Internal pull-up of 60kΩ

SDO19OLV digital. SPI data output.
nCS20I

LV digital. Chip select input (active low).

Internal pull-up of 60kΩ

VSEL21I

LV digital.

VCC1 output voltage selector pin.
  1. Connected to GND: VCC1 = 5V
  2. Floating: VCC1 = 3.3V.

Internal pull-up of 30kΩ

GFO22OLV digital. General function output pin (SPI configurable);

Push-pull

CTXD23ILV digital. CAN transmit data input (low for dominant and high for recessive bus states);

Internal pull-up of 60kΩ.

CRXD24OLV digital. CAN receive data output (low for dominant and high for recessive bus states), tri-state
VSUP25PHV. Input supply pin, typically connected to battery.
VCC226P5V LDO output. Short-to-battery protected.
VCAN27P5V power supply input for the CAN FD transceiver
CANH28I/OHV capable. High level CAN bus I/O line
CANL29I/OHV capable . Low level CAN bus I/O line
GND30GGround connection: Must be soldered to ground
WAKE4/ID431IHV capable. Local wake input terminal. Configurable as ID pin
WAKE3/ID332IHV. Local wake input terminal. Configurable as an ID pin
NC-NCNot connected internally.
GNDThermal PadGGround connection: Must be soldered to ground
(1) I = Input, O = Output, I/O = Input or Output, G = Ground, P = Power, NC = No Connect