ZHCSNM5C november 2020 – august 2023 UCC25800-Q1
PRODUCTION DATA
| PARAMETER | TEST CONDITIONS | MIN | TYP | MAX | UNIT | |
|---|---|---|---|---|---|---|
| SUPPLY VOLTAGE | ||||||
| UVLOR | VCC turn on threshold | VCC rising | 8 | 8.6 | 9 | V |
| UVLOF | VCC turn off threshold | VCC falling | 7.5 | 8 | 8.5 | V |
| OVSD | VCC overvoltage shutdown threshold | VCC rising | 35 | 37 | 39 | V |
| OVRS | VCC overvoltage reset | VCC falling | 34 | 36 | 38 | V |
| OVBLNK | Overvoltage blanking time | VVCC = 40 V | 0.75 | 1.3 | 2 | μs |
| SUPPLY CURRENT | ||||||
| IVCCUVLO | VCC current during UVLO | VVCC = 7.5 V | 200 | 500 | μA | |
| IVCCRUN | Input current, not including FET current (3) | fSW = 1.2 MHz, DIS/FLT = 1, SW open, IVREG = 0 mA, VCC = 12 V | 14 | 20 | mA | |
| IVCCDIS | Supply current when disabled | No switching, DIS/FLT = 0, IVREG = 0 mA | 660 | 800 | μA | |
| VREG OUTPUT | ||||||
| VREG | Internal regulated reference | IVREG = 0 mA, DIS/FLT = 0 | 4.75 | 5 | 5.25 | V |
| VREGLINE | Line Regulation | IVREG = 0 mA, 9 V ≤ VVCC ≤ 34 V | 10 | mV | ||
| VREGLOAD | Load Regulation | 0 mA ≤ IVREG ≤ 1 mA | -100 | mV | ||
| VREGOK | Threshold for VREG GOOD | VREG rising | 4.05 | 4.5 | 4.95 | V |
| VREGLOW | VREG fault threshold | VREG falling | 3.6 | 4 | 4.4 | V |
| MOSFETs | ||||||
| RDSON | On Resistance | PMOS ISW = -500 mA | 0.45 | 0.75 | Ω | |
| NMOS ISW = +500 mA | 0.3 | 0.5 | Ω | |||
| OSCILLATOR | ||||||
| fSW | SW switching frequency | VRT = 0.25 V | 94 | 100 | 106 | kHz |
| VRT = 2.5 V | 0.94 | 1 | 1.06 | MHz | ||
| Default switching frequency, RT open | 1.128 | 1.2 | 1.272 | MHz | ||
| fSWtol | Tolerance | 10 k? ≤ RRT ≤ 100 k? | 94 | 106 | % | |
| Duty | Duty cycle | RT open | 49 | 50 | 51 | % |
| RTSHORT | Short circuit fault theshold | 130 | 150 | 170 | mV | |
| RTOPEN | Open-circuit default fOSC threshold | 2.9 | 3 | 3.1 | V | |
| SYNC | ||||||
| SYNCRISNG | SYNC rising threshold | VSYNC rising | 2.0 | 2.2 | 2.4 | V |
| SYNCFALLING | SYNC falling threshold | VSYNC falling | 1.53 | 1.7 | 1.87 | V |
| ADAPTIVE DEAD-TIME | ||||||
| DT_HSTH | High-side dead-time detection threshold with respect to VCC | SW rising | -1.2 | -1 | -0.8 | V |
| DT_LSTH | Low-side dead-time detection threshold | SW falling | 0.8 | 1 | 1.2 | V |
| DT_HSDELAY | High-side turn on delay | From SW crossing DT_HSTH to HS turning on | 20 | 45 | ns | |
| DT_LSDELAY | Low-side turn on delay | From SW crossing DT_LSTH to LS turning on | 20 | 45 | ns | |
| PROGRAMMABLE MAXIMUM DEAD-TIME | ||||||
| OC/DTSHORT | short threshold for OC/DT pin | 450 | 500 | 550 | mV | |
| OC/DTOPEN | open threshold for OC/DT pin | 4.3 | 4.5 | 4.7 | V | |
| DTMAX | Programmable maximum dead-time | VOC/DT = 3.9 V | 45 | 50 | 55 | ns |
| VOC/DT = 1.9 V | 135 | 150 | 165 | ns | ||
| OVER-CURRENT PROTECTION | ||||||
| IOCP1max | First level maximum OCP setting threshold | Low side only | 0.9 | 1 | 1.1 | A |
| OCP1TO | OCP1 time out | Peak current exceeds threshold time out to trigger OCP1 fault | 1.9 | 2.1 | 2.3 | ms |
| IOCP2max | Second level maximum OCP threshold | Low side and high side | 4.25 | 5 | 5.75 | A |
| OCP2FILTER | OCP2 filter time | Continuous over-current to trigger OCP2 fault, low side and high side | 80 | 100 | 120 | ns |
| OVER-TEMPERATURE PROTECTION | ||||||
| TSD | Thermal shutdown threshold | TJ = TA(1) | 160 | °C | ||
| THYST | Hysteresis | TJ = TA (1) | 20 | °C | ||
| ENABLE_DISABLE FUNCTION | ||||||
| ENTH | Enable threshold | DIS/FLT rising | 2 | 2.2 | 2.4 | V |
| DISTH | Disable threshold | DIS/FLT falling | 1.53 | 1.7 | 1.87 | V |
| Ipd_DIS | Internal pull down disable current | VDIS/FLT = 5 V | 650 | 750 | 850 | μA |
| RESTARTDEL | Restart delay after fault (2) | 100 | ms | |||