SFFS689 December 2023 TPS2663
4.2 HTSSOP Package
Figure 4-3 shows the TPS2663 pin diagram for the HTSSOP package. For a detailed description of the device pins please refer to the Pin Configuration and Functions section in the TPS2663 data sheet.
Figure 4-3 TPS26631 Pin Diagram (HTSSOP Package)
Figure 4-4 TPS26633, TPS26636 Pin Diagram (HTSSOP Package)Table 4-6 Pin FMA for Device Pins
Short-Circuited to Ground
| Pin Name | Pin No. | Description of Potential Failure Effect(s) | Failure Effect Class |
|---|---|---|---|
| IN | 1, 2, 3 | Device unpowered. Device not functional. | B |
| B_GATE | 4 | Potential device damage. | A |
| DRV | 5 | Potential device damage. | A |
| IN_SYS | 6 | Device unpowered. Device not functional. | B |
| UVLO | 7 | UVLO protection is triggered. Device turns off the internal FET. | B |
| OVP or PLIM | 8 | Over-voltage protection or Power limit does not function. | B |
| GND | 9 | No effect. Normal operation. | D |
| dVdT | 10 | Device does not power up. | B |
| ILIM | 11 | Device does not power up. | B |
| MODE | 12 | Device provides auto-retry behavior for over-current events as per device functional modes in data sheet. | D |
| SHDN | 13 | Device is disabled. | B |
| IMON | 14 | Current monitor function is not available. | B |
| FLT | 15 | Fault function not available. | B |
| PGTH | 16 | PGOOD does not function. | B |
| PGOOD | 17 | PGOOD does not function. | B |
| OUT | 18, 19, 20 | Device enters into current limiting operation. | B |
Table 4-7 Pin FMA for Device Pins
Open-Circuited
| Pin Name | Pin No. | Description of Potential Failure Effect(s) | Failure Effect Class |
|---|---|---|---|
| IN | 1, 2, 3 | Device unpowered. Device not functional. | B |
| B_GATE | 4 |
Reverse current blocking and Reverse polarity protection are not functional. |
B |
| DRV | 5 |
Reverse current blocking and Reverse polarity protection are not functional. |
B |
| IN_SYS | 6 | Device unpowered. Device not functional. | B |
| UVLO | 7 | Device functionality undetermined. Device may turn off / power down. | B |
| OVP or PLIM | 8 |
TPS26631: over-voltage protection function is not determined. Device may turn off the internal FET. TPS26633, TPS26636 : Output power limit is set to power more than 400 W. | B |
| GND | 9 | Device unpowered. Device not functional. | B |
| dVdT | 10 | Device provides slew rate 24 V/500 μs on output at power up. | D |
| ILIM | 11 | Internal FET is turned off. Output is not powered up. | B |
| MODE | 12 | Device provides latch-off behavior for over-current events as per device functional modes in data sheet. | D |
| SHDN | 13 | No effect. Normal operation. | D |
| IMON | 14 | No effect. Normal operation. | D |
| FLT | 15 | No effect. Normal operation. | D |
| PGTH | 16 | PGOOD might not function. | B |
| PGOOD | 17 | No effect. Normal operation. | D |
| OUT | 18, 19, 20 | No power or current provided to load. | D |
Table 4-8 Pin FMA for Device Pins
Short-Circuited to Adjacent Pin
| Pin Name | Pin No. | Description of Potential Failure Effect(s) | Failure Effect Class |
|---|---|---|---|
| IN | 1, 2, 3 | IN to B_GATE : Potential device damage. | A |
| B_GATE | 4 | B_GATE to DRV : Potential device damage. | A |
| DRV | 5 | DRV to IN_SYS : Potential device damage | A |
| IN_SYS | 6 | IN_SYS to UVLO: under-voltage protection does not function. | B |
| UVLO | 7 | UVLO to OVP: potential device damage if UVLO voltage is more than 5.5 V. | B |
| OVP or PLIM | 8 | OVP or PLIM to GND: over-voltage protection does not function. | B |
| GND | 9 | GND to dVdT: device unpowered. Device not functional. | B |
| dVdT | 10 | dVdT to ILIM: device can go into current limit operation. | B |
| ILIM | 11 | ILIM to MODE: device can go into current limit operation or Latch-off mode. | B |
| MODE | 12 | MODE to SHDN: device can go into shutdown. | B |
| SHDN | 13 | SHDN to IMON: device can go into shutdown. | B |
| IMON | 14 | IMON to FLT: potential Device damage if FLT pin voltage is more than 5.5 V. | A |
| FLT | 15 | PGTH to FLT: PGOOD does not function if FLT is low. | B |
| PGTH | 16 | PGTH to PGOOD : PGOOD does not function. | B |
| PGOOD | 17 | PGOOD to OUT: Potential device damage when PGOOD is low and output is powered up. | A |
| OUT | 18, 19, 20 | OUT to OUT: No effect. Normal operation. | D |
Table 4-9 Pin FMA for Device Pins Short-Circuited to IN
or
IN_SYS
| Pin Name | Pin No. | Description of Potential Failure Effect(s) | Failure Effect Class |
|---|---|---|---|
| IN | 1,2, 3 | No effect. Normal operation. | D |
| B_GATE | 4 | Potential device damage | B |
| DRV | 5 | Potential device damage | B |
| IN_SYS | 6 | No effect. Normal operation. | D |
| UVLO | 7 | Under-voltage protection does not function. | B |
| OVP or PLIM | 8 | Potential device damage if supply voltage is more than 5.5 V | D |
| GND | 9 | Short circuit of input supply. | B |
| dVdT | 10 | Potential device damage if supply voltage is more than 5.5 V. | A |
| ILIM | 11 | Potential device damage if supply voltage is more than 5.5 V. | A |
| MODE | 12 | Potential device damage if supply voltage is more than 5.5 V. | A |
| SHDN | 13 | Potential device damage if supply voltage is more than 5.5 V. | A |
| IMON | 14 | Potential device damage if supply voltage is more than 5.5 V. | A |
| FLT | 15 | Potential device damage if FLT pin is low. | A |
| PGTH | 16 | PGOOD does not function. | B |
| PGOOD | 17 | Potential device damage if PGOOD pin is low. | A |
| OUT | 18, 19, 20 | Device does not limit power or current into load. | B |