ZHCS547K January 2010 – February 2018 LM27402
PRODUCTION DATA.
| PARAMETER | TEST CONDITIONS | MIN | TYP | MAX | UNIT | |
|---|---|---|---|---|---|---|
| OPERATIONAL SPECIFICATIONS | ||||||
| IQ | Quiescent Current | VFB = 0.6 V (not switching), TJ = 25°C | 4.5 | mA | ||
| VFB = 0.6 V (not switching), TJ = –40°C to +125°C | 6 | |||||
| IQSD | Quiescent Current In Shutdown | VEN = 0 V, TJ = 25°C | 25 | µA | ||
| VEN = 0 V, TJ = –40°C to +125°C | 45 | |||||
| UVLO | ||||||
| UVLO | Input Under Voltage Lockout | VVIN Rising, VVDD Rising, TJ = 25°C | 2.9 | V | ||
| VVIN Rising, VVDD Rising, TJ = –40°C to +125°C | 2.7 | 2.99 | ||||
| UVLOHYS | UVLO Hysteresis | VVIN Falling, VVDD Falling | 300 | mV | ||
| REFERENCE | ||||||
| VFB | Feedback Voltage | TJ = 25°C | 0.600 | V | ||
| TJ = –40°C to +125°C | 0.594 | 0.606 | ||||
| IFB | Feedback Pin Bias Current | VFB = 0.65 V | –50 | 0 | 50 | nA |
| SWITCHING | ||||||
| FSW | Switching Frequency | RFADJ = 4.12 kΩ, TJ = 25°C | 1150 | kHz | ||
| RFADJ = 4.12 kΩ, TJ = –40°C to +125°C | 950 | 1350 | ||||
| RFADJ = 20 kΩ, TJ = 25°C | 500 | kHz | ||||
| RFADJ = 4.12 kΩ, TJ = –40°C to +125°C | 400 | 0 | 600 | |||
| RFADJ = 95.3 kΩ, TJ = 25°C | 214 | kHz | ||||
| RFADJ = 4.12 kΩ, TJ = –40°C to +125°C | 175 | 265 | ||||
| DMAX | Maximum Duty Cycle | FSW = 300 kHz, TJ = 25°C | 95% | |||
| FSW = 300 kHz, TJ = –40°C to +125°C | 93% | |||||
| VDD SUB-REGULATOR | ||||||
| VDD | Sub-Regulator Output Voltage | IDD = 25 mA, TJ = 25°C | 4.5 | V | ||
| IDD = 25 mA, TJ = –40°C to +125°C | 4 | 5 | ||||
| ERROR AMPLIFIER | ||||||
| BW–3dB | Open Loop Bandwidth | 2 | MHz | |||
| AVOL | Error Amp DC Gain | 50 | dB | |||
| VSLEW_RISE | Error Amplifier Rising Slew Rate | VFB = 0.5 V | 5 | V/µs | ||
| VSLEW_FALL | Error Amplifier Falling Slew Rate | VFB = 0.7 V | 3 | V/µs | ||
| ISOURCE | COMP Source Current | VFB = 0.5 V | 8 | 12 | mA | |
| ISINK | COMP Sink Current | VFB = 0.7 V | 4 | 12 | mA | |
| VCOMP_MAX | Max COMP Voltage | VFB = 0.5 V | 3.1 | V | ||
| VCOMP_MIN | Min COMP Voltage | VFB = 0.7 V | 0.5 | V | ||
| OVER CURRENT | ||||||
| VOFFSET | Comparator Voltage Offset | TJ = 25°C | 0 | mV | ||
| TJ = –40°C to +125°C | –5 | 5 | ||||
| ICS– | Current Limit Offset Current | VCS– = 5 V, TJ = 25°C | 10 | µA | ||
| VCS– = 5 V, TJ = –40°C to +125°C | 9.5 | 10.5 | ||||
| GATE DRIVE | ||||||
| RDSON1 | High-Side FET Driver pullup On Resistance | VCBOOT – VSW = 4.7 V, IHG = +100 mA | 1.7 | Ω | ||
| RDSON2 | High-Side FET Driver pulldown On Resistance | VCBOOT – VSW = 4.7 V, IHG = –100 mA | 1.2 | Ω | ||
| RDSON3 | Low-Side FET Driver pullup On Resistance | VVDD = 4.7 V, ILG = +100 mA | 1.7 | Ω | ||
| RDSON4 | Low-Side FET Driver pulldown On Resistance | VVDD = 4.7 V, ILG = –100 mA | 1 | Ω | ||
| SOFT-START | ||||||
| ISS | Soft-Start Source Current | VSS/TRACK = 0 V, TJ = 25°C | 3 | µA | ||
| VSS/TRACK = 0 V, TJ = –40°C to +125°C | 2 | 4 | ||||
| RSS_PD | Soft-Start pulldown Resistance | VSS/TRACK = 0.6 V | 288 | Ω | ||
| POWERGOOD | ||||||
| IPGS | PGOOD Low Sink Current | VPGOOD = 0.2 V, VFB = 0.75 V, TJ = 25°C | 60 | µA | ||
| VPGOOD = 0.2 V, VFB = 0.75 V, TJ = –40°C to +125°C | 0 | 100 | ||||
| IPGL | PGOOD Leakage Current | VPGOOD = 5 V | 1 | 10 | µA | |
| OVT | Overvoltage Threshold | VFB Rising, TJ = 25°C | 117% | |||
| VFB Rising, TJ = –40°C to +125°C | 114% | 120% | ||||
| OVT_HYS | OVT Hysteresis | VFB Falling | 2% | |||
| UVT | Undervoltage Threshold | VFB Rising , TJ = 25°C | 94% | |||
| VFB Rising, TJ = –40°C to +125°C | 91% | 97% | ||||
| UVT_HYS | UVT Hysteresis | VFB Falling | 3% | |||
| ENABLE | ||||||
| VEN | Enable Logic High Threshold | VEN Rising, TJ = 25°C | 1.17 | V | ||
| VEN Rising, TJ = –40°C to +125°C | 1.10 | 1.24 | ||||
| VEN_HYS | Enable Hysteresis | VEN Falling | 100 | mV | ||
| IEN | Enable Pin pullup Current | VEN = 0 V | 2 | µA | ||
| FREQUENCY SYNCHRONIZATION | ||||||
| VLH_SYNC | SYNC Pin Logic High | VVDD = 4.7 V, TJ = –40°C to +125°C | 2.0 | V | ||
| VLL_SYNC | SYNC Pin Logic Low | VVDD = 4.7 V, TJ = –40°C to +125°C | 0.8 | V | ||
| SYNCFSW_L | Minimum Clock Sync Frequency | TJ = –40°C to +125°C | 200 | kHz | ||
| SYNCFSW_H | Maximum Clock Sync Frequency | TJ = –40°C to +125°C | 1200 | kHz | ||
| THERMAL SHUTDOWN | ||||||
| TSHD | Thermal Shutdown | Temperature Rising | 165 | °C | ||
| TSHD_HYS | Thermal Shutdown Hysteresis | Temperature Falling | 15 | °C | ||