ZHCS557J February 2010 – December 2015 LM25066
PRODUCTION DATA.
| MIN | MAX | UNIT | ||
|---|---|---|---|---|
| Input voltage | VIN, SENSE to GND(2) | –0.3 | 24 | V |
| GATE, FB, UVLO/EN, OVLO, PGD to GND(2) | –0.3 | 20 | V | |
| OUT to GND | –1 | 20 | V | |
| SCL, SDA, SMBA, CL, CB, ADR0, ADR1, ADR2, VDD, VAUX, DIODE, RETRY to GND | –0.3 | 6 | V | |
| VIN to SENSE | –0.3 | 0.3 | V | |
| Junction temperature, TJ | 150 | °C | ||
| Storage temperature, Tstg | –65 | 150 | °C | |
| VALUE | UNIT | |||
|---|---|---|---|---|
| V(ESD) | Electrostatic discharge | Human-body model (HBM), per ANSI/ESDA/JEDEC JS-001(1) | ±2000 | V |
| Charged-device model (CDM), per JEDEC specification JESD22-C101(2) | ±500 | |||
| MIN | NOM | MAX | UNIT | ||
|---|---|---|---|---|---|
| VIN, SENSE, OUT voltage | 2.9 | 17 | V | ||
| VDD | 2.9 | 5.5 | V | ||
| Junction temperature, TJ | –40 | 125 | °C | ||
| THERMAL METRIC(1) | LM25066 | UNIT | |
|---|---|---|---|
| NHZ (WQFN) | |||
| 24 PINS | |||
| RθJA | Junction-to-ambient thermal resistance | 34.1 | °C/W |
| RθJC(top) | Junction-to-case (top) thermal resistance | 28.9 | °C/W |
| RθJB | Junction-to-board thermal resistance | 13.4 | °C/W |
| ψJT | Junction-to-top characterization parameter | 0.3 | °C/W |
| ψJB | Junction-to-board characterization parameter | 13.5 | °C/W |
| RθJC(bot) | Junction-to-case (bottom) thermal resistance | 3.6 | °C/W |
| PARAMETER | TEST CONDITIONS | MIN | TYP | MAX | UNIT | |
|---|---|---|---|---|---|---|
| INPUT (VIN PIN) | ||||||
| IIN-EN | Input current, enabled | UVLO = 2 V and OVLO = 0.7 V | 5.8 | 8 | mA | |
| POR | Power on reset threshold at VIN | VIN increasing | 2.6 | 2.8 | V | |
| PORHYS | POREN hysteresis | VIN decreasing | 150 | mV | ||
| VDD REGULATOR (VDD PIN) | ||||||
| VDD | IVDD = 5 mA, VIN = 12 V | 4.3 | 4.5 | 4.7 | V | |
| IVDD = 5 mA, VIN = 4.5 V | 3.5 | 3.9 | 4.3 | V | ||
| VDDILIM | VDD current limit | 25 | 45 | mA | ||
| UVLO/EN, OVLO PINS | ||||||
| UVLOTH | UVLO threshold | VUVLO Falling | 1.147 | 1.16 | 1.173 | V |
| UVLOHYS | UVLO hysteresis current | UVLO = 1 V | 18 | 23 | 28 | µA |
| UVLODEL | UVLO delay | Delay to GATE high | 8 | µs | ||
| Delay to GATE low | 20 | |||||
| UVLOBIAS | UVLO bias current | UVLO = 3 V | 1 | µA | ||
| OVLOTH | OVLO threshold | VOVLO rising | 1.141 | 1.16 | 1.185 | V |
| OVLOHYS | OVLO hysteresis current | OVLO = 1 V | –28 | –23 | –18 | µA |
| OVLODEL | OVLO delay | Delay to GATE high | 19 | µs | ||
| Delay to GATE low | 9 | |||||
| OVLOBIAS | OVLO bias current | OVLO = 1 V | 1 | µA | ||
| POWER GOOD (PGD PIN) | ||||||
| PGDVOL | Output low voltage | ISINK = 2 mA | 25 | 60 | mV | |
| PGDIOH | Off leakage current | VPGD = 17 V | 1 | µA | ||
| PGDDELAY | Power Good delay | VFB to VPG | 115 | ns | ||
| FB PIN | ||||||
| FBTH | FB threshold | VFB rising | 1.141 | 1.167 | 1.19 | V |
| FBHYS | FB hysteresis current | –31 | –24 | –18 | µA | |
| FBLEAK | Off leakage current | VFB = 1 V | 1 | µA | ||
| POWER LIMIT (PWR PIN) | ||||||
| PWRLIM | Power limit sense voltage (VIN-SENSE) | SENSE-OUT = 12 V, RPWR = 25 kΩ | 9 | 12.5 | 15 | mV |
| IPWR | PWR pin current | VPWR = 2.5 V | –10 | µA | ||
| RSAT(PWR) | PWR pin impedance when disabled | UVLO = 0.7 V | 180 | Ω | ||
| GATE CONTROL (GATE PIN) | ||||||
| IGATE | Source current | Normal operation | –28 | –22 | –16 | µA |
| Fault sink current | UVLO = 1 V | 1.5 | 2 | 2.5 | mA | |
| POR circuit breaker sink current | VIN - SENSE = 150 mV or VIN < RPOR, VGATE = 5 V | 105 | 190 | 275 | mA | |
| VGATE | Gate output voltage in normal operation | GATE voltage with respect to ground | 17 | 18.8 | 20.3 | V |
| OUT PIN | ||||||
| IOUT-EN | OUT bias current, enabled | OUT = VIN, normal operation | 16 | µA | ||
| IOUT-DIS | OUT bias current, disabled(2) | Disabled, OUT = 0 V, SENSE = VIN | –12 | µA | ||
| CURRENT LIMIT | ||||||
| VCL | Threshold voltage | CL = GND | 22.5 | 25 | 27 | mV |
| CL = GND, TJ = 10°C to 85°C | 23 | 25 | 27 | |||
| CL = VDD | 42.3 | 46 | 49.7 | |||
| ISENSE | SENSE input current | Enabled, SENSE = OUT | 33 | µA | ||
| Disabled, OUT = 0 V | 46 | |||||
| Enabled, OUT = 0 V | 45 | |||||
| CIRCUIT BREAKER | ||||||
| VCB | Threshold voltage × 1.8 | VIN - SENSE, CL = GND, CB = GND | 35 | 45 | 55 | mV |
| CB:CL ratio | CB = GND | 1.6 | 1.8 | 2 | ||
| VCB | Threshold voltage × 3.6 | VIN - SENSE, CL = GND, CB = VDD | 70 | 90 | 110 | mV |
| CB:CL ratio | CB = VDD | 3.1 | 3.6 | 4 | ||
| TIMER (TIMER PIN) | ||||||
| VTMRH | Upper threshold | 1.54 | 1.7 | 1.85 | V | |
| VTMRL | Lower threshold | Restart cycles | 0.85 | 1.0 | 1.07 | V |
| End of 8th cycle | 0.3 | V | ||||
| Re-enable threshold | 0.3 | V | ||||
| ITIMER | Insertion time current | TIMER pin = 2 V | –3 | –5.5 | –8 | µA |
| Sink current, end of insertion time | 1.4 | 1.9 | 2.4 | mA | ||
| Fault detection current | –120 | –90 | –60 | µA | ||
| Fault sink current | 2.8 | µA | ||||
| DCFAULT | Fault restart duty cycle | 0.67% | ||||
| INTERNAL REFERENCE | ||||||
| VREF | Reference voltage | 2.703 | 2.73 | 2.757 | V | |
| ADC AND MUX | ||||||
| Resolution | 12 | Bits | ||||
| INL | Integral non-linearity | ADC only | ±1 | LSB | ||
| TELEMETRY ACCURACY | ||||||
| IINFSR | Current input full scale range | CL = GND | 30.2 | mV | ||
| CL = VDD | 60.4 | mV | ||||
| IINLSB | Current input LSB | CL = GND | 7.32 | µV | ||
| CL = VDD | 14.64 | µV | ||||
| VAUXFSR | VAUX input full scale range | 1.16 | V | |||
| VAUXLSB | VAUX input LSB | 283.2 | µV | |||
| VINFSR | Input voltage full scale range | 18.7 | V | |||
| VINLSB | Input voltage LSB | 4.54 | mV | |||
| IINACC | Input current accuracy | VIN – SENSE = 25 mV, CL = GND | –2.7 | 2.4 | ||
| VIN – SENSE = 25 mV, CL = GND TJ = 10°C to 85°C |
–2.4% | 2.4% | ||||
| VACC | VAUX, VIN, VOUT accuracy | VIN, VOUT = 12 V VAUX = 1 V |
–1.6% | 1.4% | ||
| VIN, VOUT = 12 V VAUX = 1 V TJ = 10°C to 85°C |
–1.4% | 1.4% | ||||
| PINACC | Input power accuracy | VIN = 12 V, VIN – SENSE = 25 mV, CL = GND |
–3% | 3% | ||
| REMOTE DIODE TEMPERATURE SENSOR | ||||||
| TACC | Temperature accuracy using local diode | TA = 10°C to 85°C | 2 | 10 | °C | |
| Remote diode resolution | 9 | bits | ||||
| IDIODE | External diode current source | High level | 250 | 300 | µA | |
| Low level | 9.4 | µA | ||||
| Diode current ratio | 26 | |||||
| PMBUS PIN THRESHOLDS (SMBA, SDA, SCL) | ||||||
| VIL | Data, clock input low voltage | 0.8 | V | |||
| VIH | Data, clock input high voltage | 2.1 | 5.5 | V | ||
| VOL | Data output low voltage | IPULLUP = 500 µA | 0 | 0.4 | V | |
| ILEAK | Input leakage current | SDA, SMBA, SCL = 5 V | 1 | µA | ||
| CONFIGURATION PIN THRESHOLDS (CB, CL, RETRY) | ||||||
| VIH | Threshold voltage | 3 | V | |||
| ILEAK | Input leakage current | CL, CB, RETRY = 5 V | 1 | mA | ||
| MIN | NOM | MAX | UNIT | ||
|---|---|---|---|---|---|
| FSMB | SMBus operating frequency | 10 | 400 | kHz | |
| tBUF | Bus free time between stop and start condition | 1.3 | µs | ||
| tHD:STA | Hold time after (repeated) start condition. After this period, the first clock is generated. | 0.6 | µs | ||
| tSU:STA | Repeated start condition setup time | 0.6 | µs | ||
| tSU:STO | Stop condition setup time | 0.6 | µs | ||
| tHD:DAT | Data hold time | 300 | ns | ||
| tSU:DAT | Data setup time | 100 | ns | ||
| tTIMEOUT | Clock low time-out(1) | 25 | 35 | ms | |
| tLOW | Clock low period | 1.5 | µs | ||
| tHIGH | Clock high period(2) | 0.6 | µs | ||
| tLOW:SEXT | Cumulative clock low extend time (slave device)(3) | 25 | ms | ||
| tLOW:MEXT | Cumulative low extend time (master device)(4) | 10 | ms | ||
| tF | Clock or data fall time(5) | 20 | 300 | ns | |
| tR | Clock or data rise time(5) | 20 | 300 | ns | |
| PARAMETER | TEST CONDITIONS | MIN | TYP | MAX | UNIT | |
|---|---|---|---|---|---|---|
| CURRENT LIMIT | ||||||
| tCL | Response time | VIN-SENSE stepped from 0 mV to 80 mV | 1.2 | µs | ||
| CIRCUIT BREAKER | ||||||
| tCB | Response time | VIN - SENSE stepped from 0 mV to 150 mV, time to GATE low, no load |
0.6 | 1.2 | µs | |
| TIMER (TIMER PIN) | ||||||
| tFAULT_DELAY | Fault to GATE low delay | TIMER pin reaches the upper threshold | 17 | µs | ||
| ADC AND MUX | ||||||
| tAQUIRE | Acquisition + conversion time | Any channel | 100 | µs | ||
| tRR | Acquisition round robin time | Cycle all channels | 1 | ms | ||
Figure 1. SMBus Timing Diagram
Figure 4. SENSE Pin Current (Disabled)
Figure 6. OUT Pin Current (Disabled)
Figure 8. GATE Pin Source Current
Figure 10. PGD Low Voltage
Figure 12. UVLO Hysteresis Current
Figure 14. OVLO Threshold
Figure 16. FB Pin Hysteresis
Figure 20. Reference Voltage
Figure 22. Start-up (Short Circuit VOUT)
Figure 24. Start-up (UVLO, OVLO)
Figure 26. Current Limit Event (CL = GND)
Figure 28. Retry Event (Retry = GND)
Figure 30. IIN Measurement Accuracy
Figure 3. SENSE Pin Current (Enabled)
Figure 5. OUT Pin Current (Enabled)
Figure 7. GATE Pin Voltage
Figure 9. Power Limit Threshold
Figure 11. UVLO Threshold
Figure 13. FB Threshold
Figure 15. OVLO Hysteresis
Figure 19. Circuit Breaker Threshold (CL = VDD)
Figure 23. Start-up (5-A Load)
Figure 25. Start-up (PGOOD)
Figure 27. Circuit Breaker Event (CL = CB = GND)
Figure 29. Latch Off (Retry = VDD)
Figure 31. PIN Measurement Accuracy