ZHCS048A June 2011 – July 2022 TPS54325-Q1
PRODUCTION DATA
| PARAMETER | TEST CONDITIONS | MIN | TYP | MAX | UNIT | |
|---|---|---|---|---|---|---|
| SUPPLY CURRENT | ||||||
| IVCC | Operating – nonswitching supply current | VCC current, TA = 25°C, EN = 5 V, VFB = 0.8 V | 850 | 1300 | μA | |
| ICCSDN | Shutdown supply current | VCC current, TA = 25°C, EN = 0 V | 10 | μA | ||
| LOGIC THRESHOLD | ||||||
| VENH | EN high-level input voltage | EN | 2 | V | ||
| VENL | EN low-level input voltage | EN | 0.4 | V | ||
| VFB VOLTAGE AND DISCHARGE RESISTANCE | ||||||
| VFBTH | VFB threshold voltage | TA = 25°C, VO = 1.05 V | 757 | 765 | 775 | mV |
| TA = 0°C to 105°C, VO = 1.05 V | 753 | 777 | ||||
| TA = –40°C to 105°C, VO = 1.05 V | 750 | 780 | ||||
| IVFB | VFB input current | VFB = 0.8 V, TA = 25°C | 0 | ±0.1 | μA | |
| RDischg | VO discharge resistance | EN = 0 V, VO = 0.5 V, TA = 25°C | 50 | 100 | Ω | |
| VREG5 OUTPUT | ||||||
| VVREG5 | VREG5 output voltage | TA = 25°C, 6.0 V < VCC < 18 V, 0 < IVREG5 < 5 mA | 5.3 | 5.5 | 5.7 | V |
| VLN5 | Line regulation | 6.0 V < VCC < 18 V, IVREG5 = 5 mA | 20 | mV | ||
| VLD5 | Load regulation | 0 mA < IVREG5 < 5 mA | 100 | mV | ||
| IREG5 | Output current | VCC = 6 V, VREG5 = 4.0 V, TA = 25°C | 70 | mA | ||
| MOSFET | ||||||
| Rdsonh | High-side switch resistance | 25°C, VBST – SW1, SW2 = 5.5 V | 120 | mΩ | ||
| Rdsonl | Low-side switch resistance | 25°C | 70 | mΩ | ||
| CURRENT LIMIT | ||||||
| Iocl | Current limit | TA = 25°C to 105°C | 3.5 | 4.1 | A | |
| TA = –40°C | 3.25 | 3.5 | ||||
| THERMAL SHUTDOWN | ||||||
| tSDN | Thermal shutdown threshold | Shutdown temperature | 150 | °C | ||
| Hysteresis | 25 | |||||
| ON-TIME TIMER CONTROL | ||||||
| tON | On time | VIN = 12 V, VO = 1.05 V | 145 | ns | ||
| tOFF(MIN) | Minimum off time | TA = 25°C, VFB = 0.7 V | 260 | ns | ||
| SOFT START | ||||||
| ISSC | SS charge current | VSS = 0 V | 1.4 | 2.0 | 2.6 | μA |
| ISSD | SS discharge current | VSS = 0.5 V | 0.1 | 0.2 | mA | |
| POWER GOOD | ||||||
| VTHPG | PG threshold | VFB rising (good) | 85% | 90% | 95% | |
| VFB falling (fault) | 85% | |||||
| IPG | PG sink current | PG = 0.5 V | 2.5 | 5 | mA | |
| OUTPUT UNDERVOLTAGE AND OVERVOLTAGE PROTECTION | ||||||
| VOVP | Output OVP trip threshold | OVP detect | 115% | 120% | 125% | |
| TOVPDEL | Output OVP prop delay | 5 | μs | |||
| VUVP | Output UVP trip threshold | UVP detect | 65% | 70% | 75% | |
| Hysteresis | 10% | |||||
| tUVPDEL | Output UVP delay | 0.25 | ms | |||
| tUVPEN | Output OVP enable delay | Relative to soft-start time | × 1.7 | |||
| UVLO | ||||||
| VUVLO | UVLO threshold | Wake-up VREG5 voltage | 3.45 | 3.70 | 3.95 | V |
| Hysteresis VREG5 voltage | 0.15 | 0.25 | 0.35 | |||