ZHCSMS3 December 2020 TPS54622-EP
PRODUCTION DATA
| PARAMETER | TEST CONDITIONS | MIN | TYP | MAX | UNIT | |
|---|---|---|---|---|---|---|
| SUPPLY VOLTAGE (VIN AND PVIN PINS) | ||||||
| VIN internal UVLO threshold | VIN rising | 4 | 4.5 | V | ||
| VIN internal UVLO hysteresis | 150 | mV | ||||
| VIN shutdown supply Current | EN = 0 V | 2 | 5 | μA | ||
| VIN operating – non switching supply current | VSENSE = 810 mV | 600 | 800 | μA | ||
| ENABLE AND UVLO (EN PIN) | ||||||
| Enable threshold | Rising | 1.22 | 1.26 | V | ||
| Enable threshold | Falling | 1.1 | 1.18 | |||
| Input current | EN = 1.1 V | 1.08 | μA | |||
| Hysteresis current | EN = 1.3 V | 3.2 | μA | |||
| VOLTAGE REFERENCE | ||||||
| Voltage reference | 0 A ≤ IOUT ≤ 6 A | 0.594 | 0.6 | 0.606 | V | |
| MOSFET | ||||||
| High-side switch resistance | BOOT-PH = 3 V | 32 | 60 | m? | ||
| High-side switch resistance(1) | BOOT-PH = 6 V | 26 | 40 | m? | ||
| Low-side Switch Resistance(1) | VIN = 12 V | 19 | 30 | m? | ||
| ERROR AMPLIFIER | ||||||
| Error amplifier Transconductance (gm) | –2 μA < ICOMP < 2 μA, V(COMP) = 1 V | 1300 | μMhos | |||
| Error amplifier dc gain | VSENSE = 0.6 V | 1000 | 3100 | V/V | ||
| Error amplifier source/sink | V(COMP) = 1 V, 100-mV input overdrive | ±125 | μA | |||
| Start switching threshold | 0.25 | V | ||||
| COMP to Iswitch gm | 16 | A/V | ||||
| CURRENT LIMIT | ||||||
| High-side switch current limit threshold | 8 | 11 | 14 | A | ||
| Low-side switch sourcing current limit | 6.5 | 10 | 15 | A | ||
| Low-side switch sinking current limit | 2 | 3 | 4 | A | ||
| Hiccup wait time | 512 | Cycles | ||||
| Hiccup time before re-start | 16384 | Cycles | ||||
| THERMAL SHUTDOWN | ||||||
| Thermal shutdown (2) | 160 | 175 | °C | |||
| Thermal shutdown hysteresis (2) | 10 | °C | ||||
| Thermal shutdown hiccup time (2) | 16384 | Cycles | ||||
| TIMING RESISTOR AND EXTERNAL CLOCK (RT/CLK PIN) | ||||||
| Minimum switching frequency | Rrt = 240 k? (1%) | 160 | 200 | 240 | kHz | |
| Switching frequency | Rrt = 100 k? (1%) | 400 | 480 | 560 | kHz | |
| Maximum switching frequency | Rrt = 29 k? (1%) | 1500 | 1600 | 1900 | kHz | |
| Minimum pulse width | 20 | ns | ||||
| RT/CLK high threshold | 2 | V | ||||
| RT/CLK low threshold | 0.7 | V | ||||
| RT/CLK falling edge to PH rising edge delay | Measure at 500 kHz with RT resistor in series | 66 | ns | |||
| Switching frequency range (RT mode set point and CLK mode) | 200 | 1600 | kHz | |||
| PH (PH PIN) | ||||||
| Minimum on-time | Measured at 90% to 90% of VIN, 25°C, IPH = 2A | 100 | 145 | ns | ||
| BOOT (BOOT PIN) | ||||||
| BOOT-PH UVLO | 2.3 | 3 | V | |||
| SLOW START AND TRACKING (SS/TR PIN) | ||||||
| SS charge current | 2.14 | μA | ||||
| SS/TR to VSENSE matching | V(SS/TR) = 0.4 V | 16 | 60 | mV | ||
| POWER GOOD (PWRGD PIN) | ||||||
| VSENSE threshold | VSENSE falling (Fault) | 92 | % Vref | |||
| VSENSE rising (Good) | 94 | % Vref | ||||
| VSENSE rising (Fault) | 111 | % Vref | ||||
| VSENSE falling (Good) | 109 | % Vref | ||||
| Output high leakage | VSENSE = Vref, V(PWRGD) = 5.5 V | 30 | 100 | nA | ||
| Output low sink current | V(PWRGD) = 0.3V | 2 | mA | |||
| Minimum VIN for valid output | V(PWRGD) < 0.5 V at 100 μA | 0.6 | 1 | V | ||
| Minimum SS/TR voltage for PWRGD | 1.4 | V | ||||