SLUSEV2C June 2022 – March 2023 UCC28C50-Q1 , UCC28C51-Q1 , UCC28C52-Q1 , UCC28C53-Q1 , UCC28C54-Q1 , UCC28C55-Q1 , UCC28C56H-Q1 , UCC28C56L-Q1 , UCC28C57H-Q1 , UCC28C57L-Q1 , UCC28C58-Q1 , UCC28C59-Q1
PRODUCTION DATA
PARAMETER | TEST CONDITIONS | MIN | TYP | MAX | UNIT | |
---|---|---|---|---|---|---|
REFERENCE | ||||||
VVREF | VREF voltage, initial accuracy | IOUT = 1 mA | 4.95 | 5 | 5.05 | V |
Line regulation | VVDD = 12 V to 25 V | 0.2 | 20 | mV | ||
Load regulation | 1 mA to 20 mA | 3 | 25 | mV | ||
Temperature stability | See (2) | 0.2 | 0.4 | mV/°C | ||
Total output variation | See (2) | 4.82 | 5.18 | V | ||
VREF noise voltage | 10 Hz to 10 kHz, TJ = 25°C, see (2) | 50 | µV | |||
Long term stability | 1000 hours, TJ = 150°C, see (2) | 5 | 25 | mV | ||
IVREF | Output short circuit (source current) | 30 | 45 | 55 | mA | |
OSCILLATOR | ||||||
fOSC | Initial accuracy | TJ = 25°C, see (3) | 50.5 | 53 | 55 | kHz |
TJ = Full Range, see (3) | 50.5 | 57 | kHz | |||
Voltage stability | 12 V ≤ VVDD ≤ 25 V | 0.2% | 1% | |||
Temperature stability | TJ(MIN) to TJ(MAX), see (2) | 1% | 2.5% | |||
Amplitude | RT/CT pin peak-to-peak voltage | 1.9 | V | |||
Discharge current | TJ = 25°C, VRT/CT = 2 V, see (4) | 7.7 | 8.4 | 9 | mA | |
TJ = Full Range, VRT/CT = 2 V, see (4) | 7.2 | 8.4 | 9.5 | |||
ERROR AMPLIFIER | ||||||
VFB | Feedback input voltage, initial accuracy | TJ = 25°C, VCOMP = 2.5 V | 2.475 | 2.5 | 2.525 | V |
Feedback input voltage, total variation | TJ = Full Range, VCOMP = 2.5 V | 2.45 | 2.5 | 2.55 | V | |
IFB | Input bias current | VFB = 5 V, (sourcing current) | 0.1 | 2 | µA | |
AVOL | Open-loop voltage gain | 2 V ≤ VOUT ≤ 4 V | 65 | 90 | dB | |
Unity gain bandwidth | See (2) | 1 | 1.5 | MHz | ||
PSRR | Power supply rejection ratio | 12 V ≤ VVDD ≤ 25 V | 60 | dB | ||
Output sink current | VFB = 2.7 V, VCOMP = 1.1 V | 2 | 14 | mA | ||
Output source current | VFB = 2.3 V, VCOMP = 5 V, (sourcing current) | 0.5 | 1 | mA | ||
VOH | High-level COMP voltage | VFB = 2.7 V, RCOMP = 15 kΩ COMP to GND | VREF–0.2 | V | ||
VOL | Low-level COMP voltage | VFB = 2.7 V, RCOMP = 15 kΩ COMP to VREF | 0.1 | 1.1 | V | |
CURRENT SENSE | ||||||
ACS | Gain | TJ = 25°C, See (5) | 2.85 | 3 | 3.15 | V/V |
TJ = Full Range, See (5) | 2.75 | 3 | 3.15 | V/V | ||
VCS | Maximum input signal | VFB < 2.4 V | 0.9 | 1 | 1.1 | V |
PSRR | Power supply rejection ratio | VVDD = 12 V to 25 V(2)(5) | 70 | dB | ||
ICS | Input bias current (source current) | 0.1 | 2 | µA | ||
tD | CS to output delay | 35 | 70 | ns | ||
COMP to CS offset | VCS = 0 V | 1.15 | V | |||
OUTPUT | ||||||
VOUT(low) | RDS(on) pulldown | ISINK = 200 mA | 5.5 | 15 | Ω | |
VOUT(high) | RDS(on) pullup | ISOURCE = 200 mA | 10 | 25 | Ω | |
tRISE | Rise tIme | TJ = 25°C, COUT = 1 nF | 25 | 50 | ns | |
tFALL | Fall tIme | TJ = 25°C, COUT = 1 nF | 20 | 40 | ns | |
UNDERVOLTAGE LOCKOUT | ||||||
VDDON | Start threshold(6) | UCC28C52-Q1, UCC28C54-Q1 | 13.5 | 14.5 | 15.5 | V |
UCC28C53-Q1, UCC28C55-Q1 | 7.8 | 8.4 | 9 | |||
UCC28C50-Q1, UCC28C51-Q1 | 6.5 | 7 | 7.5 | |||
UCC28C56H-Q1, UCC28C57H-Q1 | 17.6 | 18.8 | 20 | |||
UCC28C56L-Q1, UCC28C57L-Q1 | 17.6 | 18.8 | 20 | |||
UCC28C58-Q1, UCC28C59-Q1 | 14.8 | 16 | 17.2 | |||
VDDOFF | Minimum operating voltage (6) | UCC28C52-Q1, UCC28C54-Q1 | 8 | 9 | 10 | V |
UCC28C53-Q1, UCC28C55-Q1 | 7 | 7.6 | 8.2 | |||
UCC28C50-Q1, UCC28C51-Q1 | 6.1 | 6.6 | 7.1 | |||
UCC28C56H-Q1, UCC28C57H-Q1 | 15 | 15.5 | 16 | |||
UCC28C56L-Q1, UCC28C57L-Q1 | 13.95 | 14.5 | 15 | |||
UCC28C58-Q1, UCC28C59-Q1 | 12 | 12.5 | 13 | |||
VDDHyst | VDDON - VDDOFF(6) | UCC28C52-Q1, UCC28C54-Q1 | 5.4 | 5.5 | V | |
UCC28C53-Q1, UCC28C55-Q1 | 0.8 | 0.9 | ||||
UCC28C51-Q1, UCC28C50-Q1 | 0.4 | 0.5 | ||||
UCC28C56H-Q1, UCC28C57H-Q1 | 2.6 | 3.3 | ||||
UCC28C56L-Q1, UCC28C57L-Q1 | 3.65 | 4.3 | ||||
UCC28C58-Q1, UCC28C59-Q1 | 2.8 | 3.5 | ||||
PWM | ||||||
DMAX | Maximum duty cycle | UCC28C52-Q1, UCC28C53-Q1, UCC28C50-Q1, VFB < 2.4 V | 94% | 96% | ||
UCC28C56H-Q1, UCC28C56L-Q1, UCC28C58-Q1, VFB < 2.4 V | ||||||
UCC28C54-Q1, UCC28C55-Q1, UCC28C51-Q1, VFB < 2.4 V | 47% | 48% | ||||
UCC28C57H-Q1, UCC28C57L-Q1, UCC28C59-Q1, VFB < 2.4 V | ||||||
DMIN | Minimum duty cycle | VFB > 2.6 V | 0% | |||
CURRENT SUPPLY | ||||||
ISTART-UP | Start-up current | VVDD = VDDON – 0.5 V | 50 | 75 | µA | |
IVDD | Operating supply current | VFB = VCS = 0 V | 1.3 | 2 | mA |