ZHCSB15B May 2013 – October 2023 TPS54531
PRODUCTION DATA
| PARAMETER | TEST CONDITIONS | MIN | TYP | MAX | UNIT | |
|---|---|---|---|---|---|---|
| SUPPLY VOLTAGE (VIN PIN) | ||||||
| Internal undervoltage lockout threshold | Rising and falling | 3.5 | V | |||
| Shutdown supply current | EN = 0 V, VIN = 12 V, –40°C to 85°C | 1 | 4 | μA | ||
| Operating – non-switching supply current | VSENSE = 0.85 V | 110 | 190 | μA | ||
| ENABLE AND UVLO (EN PIN) | ||||||
| Enable threshold | Rising and falling | 1.25 | 1.35 | V | ||
| Input current | Enable threshold – 50 mV | –1 | μA | |||
| Input current | Enable threshold + 50 mV | –4 | μA | |||
| VOLTAGE REFERENCE | ||||||
| Voltage reference | 0.772 | 0.8 | 0.828 | V | ||
| HIGH-SIDE MOSFET | ||||||
| On resistance | BOOT-PH = 3 V, VIN = 3.5 V | 115 | 200 | m? | ||
| BOOT-PH = 6 V, VIN = 12 V | 80 | 150 | ||||
| ERROR AMPLIFIER | ||||||
| Error amplifier transconductance (gm) | –2 μA < I(COMP) < 2 μA, V(COMP) = 1 V | 92 | μmhos | |||
| Error amplifier DC gain(1) | VSENSE = 0.8 V | 800 | V/V | |||
| Error amplifier unity gain bandwidth(1) | 5 pF capacitance from COMP to GND pins | 2.7 | MHz | |||
| Error amplifier source/sink current | V(COMP) = 1 V, 100-mV overdrive | ±7 | μA | |||
| Switch current to COMP transconductance(1) | VIN = 12 V | 20 | A/V | |||
| SWITCHING FREQUENCY | ||||||
| Switching Frequency | VIN = 12 V, 25°C | 456 | 570 | 684 | kHz | |
| Minimum controllable on time | VIN = 12 V, 25°C | 105 | 130 | ns | ||
| Maximum controllable duty ratio(1) | BOOT-PH = 6 V | 90% | 93% | |||
| PULSE SKIPPING Eco-mode | ||||||
| Pulse skipping Eco-mode switch current threshold | 160 | mA | ||||
| CURRENT LIMIT | ||||||
| Current-limit threshold | VIN = 12 V | 6.3 | 10.5 | A | ||
| THERMAL SHUTDOWN | ||||||
| Thermal Shutdown | 165 | °C | ||||
| SLOW START (SS PIN) | ||||||
| Charge current | V(SS) = 0.4 V | 2 | μA | |||