The TPS2359 dual-slot hot-plug controllers perform all necessary power interface functions for two AdvancedMCTM (Advanced Mezzanine Card) modules.
Two fully integrated 3.3-V channels provide inrush control, over-current protection, and FET ORing. Two 12-V channels provide the same functions using external FETs and sense resistors. The 3.3-V current limits are factory set to AdvancedMCTM compliant levels and the 12-V current limits are programmed using external sense resistors. The accurate current sense comparators of the TPS2359 satisfy the narrow ATCATM AdvancedMCTM current limit requirements
|
TPS2358 |
TPS2359 |
TPS2456 |
TPS2458 |
TPS2459 |
| Gate Control |
Linear |
Linear |
Linear |
Linear |
Linear |
| No. of Outputs |
4 |
4 |
2 |
2 |
2 |
| Vin(Min)(V) |
8.5 |
8.5 |
8.5 |
8.5 |
8.5 |
| Vin(Max)(V) |
15 |
15 |
15 |
15 |
15 |
| Pin/Package |
48VQFN |
36VQFN |
36VQFN |
32QFN |
32QFN |
| Operation |
Latch Off |
Configurable Latch-off or Retry |
Latch Off |
Latch Off |
Configurable Latch-off or Retry |
| Enable |
Active-Low |
Via I2C |
Active High |
Active Low |
Via I2C |
| Output |
PG/Fault via Dedicated Pins |
PG/Fault via I2C |
PG/Fault via Dedicated Pins |
PG/Fault via Dedicated Pins |
PG/Fault via I2C |
| Circuit Breaker Function |
Interdependent |
Configurable |
Independent |
Interdependent |
Configurable |
| FET Status Monitoring(Typ) |
None |
Via I2C |
None |
None |
Via I2C |
| Current Monitoring |
Analog, All Rails |
Analog, All Rails |
Analog, All Rails |
Analog, All Rails |
Analog, All Rails |
| # of AdvancedMCs controlled |
2 |
2 |
2 |
1 |
1 |
| # of 12V (Payload) Rails Controlled |
2 |
2 |
2 |
1 |
1 |
| # of 3.3V (Management) Rails Controlled |
2 |
2 |
0 |
1 |
1 |
| Early Warning Indicator |
None |
Via I2C |
None |
None |
Via I2C |
| Payload Power (12V nominal) FET type |
External |
External |
External |
External |
External |
| Payload Programmable Current Limit |
Resistor Set |
Resistor Set / I2C |
Resistor Set |
Resistor Set |
Resistor Set / I2C |
| Optional Oring FET Control |
Yes |
Yes |
Yes |
Yes (12V rail) |
Yes |
| Management Power FET type |
Internal |
Internal |
N/A |
Internal |
Internal |
| Current Limiting during Fault |
Yes |
Yes |
Yes |
Yes |
Yes |
| 3.3V Power Fault Current Limit Range(A) |
0.170 to 0.225 |
0.170 to 0.225 |
N/A |
0.170 to 0.225 |
0.170 to 0.225 |
| Fast Trip response (nS) |
350 |
350 |
350 |
350 |
350 |
| Management Power Internal FET R(ds)on(Typ) |
290 mOhm |
290 mOhm |
N/A |
290 mOhm |
290 mOhm |
| Digital Interface |
None |
I2C |
None |
None |
I2C |
| Approx. Price (US$) |
4.00 | 1ku |
5.00 | 1ku |
3.45 | 1ku |
2.00 | 1ku |
2.50 | 1ku |