ZHCS920B May 2012 – April 2021 TPS54525
PRODUCTION DATA
| PARAMETER | TEST CONDITIONS | MIN | TYP | MAX | UNIT | |
|---|---|---|---|---|---|---|
| SUPPLY CURRENT | ||||||
| IVIN | Operating - non-switching supply current | VIN current, TA = 25°C, EN = 5 V, VVFB = 0.8 V | 900 | 1400 | μA | |
| IVINSDN | Shutdown supply current | VIN current, TA = 25°C, EN = 0 V | 3.6 | 10 | μA | |
| LOGIC THRESHOLD | ||||||
| VENH | EN high-level input voltage | 1.6 | V | |||
| VENL | EN low-level input voltage | 0.6 | V | |||
| REN | EN pin resistance to GND | VEN = 12 V | 220 | 440 | 880 | kΩ |
| VFB VOLTAGE AND DISCHARGE RESISTANCE | ||||||
| VFBTH | VFB threshold voltage | TA = 25°C, VO = 1.05 V, continuous mode | 757 | 765 | 773 | mV |
| TA = –40°C to 85°C, VO = 1.05 V, continuous mode(1) | 754 | 776 | ||||
| IVFB | VFB input current | VVFB = 0.8 V, TA = 25°C | 0 | ±0.15 | μA | |
| RDischg | VO discharge resistance | VEN = 0 V, VO = 0.5 V, TA = 25°C | 50 | 100 | Ω | |
| VREG5 OUTPUT | ||||||
| VVREG5 | VREG5 output voltage | TA = 25°C, 6.0 V < VIN < 18 V, 0 < IVREG5 < 5 mA | 5.2 | 5.5 | 5.7 | V |
| VVREG5 | VREG5 Line regulation | 6.0 V < VIN < 18 V, IVREG5 = 5 mA | 20 | mV | ||
| VVREG5 | VREG5 Load regulation | 0 mA < IVREG5 < 5 mA | 100 | mV | ||
| IVREG5 | VREG5 Output current | VIN = 6 V, VVREG5 = 4 V, TA = 25°C | 60 | mA | ||
| MOSFET | ||||||
| Rdsonh | High side switch resistance | TA = 25°C, VBST - VSW1,2 = 5.5 V | 63 | mΩ | ||
| Rdsonl | Low side switch resistance | TA = 25°C | 33 | mΩ | ||
| CURRENT LIMIT | ||||||
| Iocl | Current limit | LOUT = 1.5 μH(1) | 6.1 | 6.9 | 8.4 | A |
| THERMAL SHUTDOWN | ||||||
| TSDN | Thermal shutdown threshold | Shutdown temperature (1) | 165 | °C | ||
| Hysteresis (1) | 35 | |||||
| ON-TIME TIMER CONTROL | ||||||
| TON | On time | VIN = 12 V, VO = 1.05 V | 155 | ns | ||
| TOFF(MIN) | Minimum off time | TA = 25°C, VVFB = 0.7 V | 260 | 330 | ns | |
| SOFT START | ||||||
| ISSC | SS charge current | VSS = 1 V | 4.2 | 6.0 | 7.8 | μA |
| ISSD | SS discharge current | VSS = 0.5 V | 0.1 | 0.2 | mA | |
| POWER GOOD | ||||||
| VTHPG | PG threshold | VVFB rising (good) | 85 | 90 | 95 | % |
| VVFB falling (fault) | 85 | % | ||||
| IPG | PG sink current | VPG = 0.5 V | 2.5 | 5 | mA | |
| OUTPUT UNDERVOLTAGE AND OVERVOLTAGE PROTECTION | ||||||
| VOVP | Output OVP trip threshold | OVP detect | 120 | 125 | 130 | % |
| TOVPDEL | Output OVP prop delay | 10 | μs | |||
| VUVP | Output UVP trip threshold | UVP detect | 60 | 65 | 70 | % |
| Hysteresis | 10 | % | ||||
| TUVPDEL | Output UVP delay | 0.25 | ms | |||
| TUVPEN | Output UVP enable delay | Relative to soft-start time | x 1.7 | |||
| UVLO | ||||||
| VUVLO | UVLO threshold | Wake up VREG5 voltage | 3.31 | 3.61 | 3.91 | V |
| Fall VREG5 voltage | 2.82 | 3.12 | 3.42 | |||
| Hysteresis VREG5 voltage | 0.37 | 0.49 | 0.61 | |||