SLUSDU4A December 2020 – May 2022 UCC27289
PRODUCTION DATA
PIN | I/O(1) | DESCRIPTION | ||||
---|---|---|---|---|---|---|
Name | DRC | DRM | DPR | D | ||
EN | 6 | n/a | n/a | n/a | I | Enable input. When this pin is pulled high, it will enable the driver. If left floating or pulled low, it will disable the driver. 1 nF filter capacitor is recommended for high-noise systems. |
HB | 3 | 2 | 2 | 2 | P | High-side bootstrap supply. The bootstrap diode is on-chip but the external bootstrap capacitor is required to generate bootstrap supply from VDD. Connect positive side of the bootstrap capacitor and cathode of an external diode to this pin. The external diode should be 100V (minimum) rated. Higher voltage rated diode is acceptable too. Typical recommended value of HB bypass capacitor is 0.1 μF, This value primarily depends on the gate charge of the high-side MOSFET. |
HI | 7 | 5 | 7 | 5 | I | High-side input. |
HO | 4 | 3 | 3 | 3 | O | High-side output. Connect to the gate of the high-side power MOSFET or one end of external gate resistor, when used. |
HS | 5 | 4 | 4 | 4 | P | High-side source connection. Connect to source of high-side power MOSFET. Connect negative side of bootstrap capacitor to this pin. |
LI | 8 | 6 | 8 | 6 | I | Low-side input |
LO | 10 | 8 | 10 | 8 | O | Low-side output. Connect to the gate of the low-side power MOSFET or one end of external gate resistor, when used. |
NC | 2 | n/a | 5,6 | n/a | - | Not connected internally. |
VDD | 1 | 1 | 1 | 1 | P | Positive supply to the low-side gate driver. Decouple this pin to VSS. Typical decoupling capacitor value is 1 μF. When using an external boot diode, connect the anode to this pin. If series resistor is used in series with the boot diode then connect one end of series boot resistor to this pin and other end of the resistor should be connected to the anode of the external boot diode. |
VSS | 9 | 7 | 9 | 7 | G | Negative supply terminal for the device which is generally the system ground. |
Thermal Pad | - | - | - | n/a | - | Connect to a large thermal mass trace (generally IC ground plane) to improve thermal performance. This can only be electrically connected to VSS. |