Datasheet LTC4306 (Analog Devices) - 3

LTC4306
ELECTRICAL CHARACTERISTICS The
●
denotes specifications which apply over the full specified temperature range, otherwise specifications are at TA = 25
°
C. VCC = 3.3V unless otherwise noted. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
VUVLOHYST UVLO Threshold Hysteresis Voltage ● 100 175 250 mV VTH EN ENABLE Falling Threshold Voltage ● 0.8 1.0 1.2 V VENHYST ENABLE Threshold Hysteresis Voltage 60 mV tPHLEN ENABLE Delay, On-Off 60 ns tPLHEN ENABLE Delay, Off-On 20 ns IINEN ENABLE Input Leakage Current VENABLE = 0V, 5.5V, VCC = 5.5V ● 0 ±1 µA VLOWREADY READY Pin Logic Low Output Voltage IPULL-UP = 3mA, VCC = 2.7V ● 0.18 0.4 V IOFFREADY READY Off State Input Leakage Current VREADY = 0V, 5.5V, VCC = 5.5V ● 0 ±1 µA
Upstream-Downstream Buffers
VOS,BUF Buffer Offset Voltage RBUS = 10k, VCC = 2.7V, 5.5V (Note 4) ● 25 60 100 mV VOS,UP-BUF Upstream Buffer Offset Voltage VCC = 2.7V, RBUS = 2.7k (Note 4) ● 40 80 120 mV VIN, BUFFER = 0V VCC = 5.5V, RBUS = 2.7k (Note 4) ● 70 110 150 mV VOS,DOWN-BUF Downstream Buffer Offset Voltage VCC = 2.7V, RBUS = 2.7k (Note 4) ● 60 110 160 mV VIN, BUFFER = 0V VCC = 5.5V, RBUS = 2.7k (Note 4) ● 80 140 200 mV VOL Output Low Voltage, VIN,BUFFER = 0V SDA, SCL Pins; ISINK = 4mA, ● 400 mV VCC = 3V, 5.5V Output Low Voltage, VIN,BUFFER = 0.2V SDA, SCL Pins; ISINK = 500µA, ● 320 mV VCC = 2.7V, 5.5V VIL,MAX Buffer Input Logic Low Voltage VCC = 2.7V, 5.5V ● 0.4 0.52 0.64 V VTHSDA,SCL Downstream SDA, SCL Logic Threshold Voltage ● 0.8 1.0 1.2 V ILEAK Input Leakage Current SDA, SCL Pins; VCC = 0V to 5.5V; ● 0 ±5 µA Buffers Inactive
Rise Time Accelerators
VSDA,SCL slew Minimum Slew Requirement to Activate SDAIN, SCLIN, SDA1-4, SCL1-4 Pins ● 0.4 0.8 V/µs Rise Time Accelerator Currents VRISE,DC Rise Time Accelerator DC Threshold Voltage SDAIN, SCLIN, SDA1-4, SCL1-4 Pins ● 0.7 0.8 1 V IBOOST Rise Time Accelerator Pull-Up Current SDAIN, SCLIN, SDA1-4, SCL1-4 Pins 4 5.5 mA (Note 3)
GPIOs
VGPIO(TH) GPIO Pin Input Threshold ● 0.8 1 1.2 V VGPIO(OL) GPIO Pin Output Low Voltage IGPIO = 5mA, VCC = 2.7V ● 0.2 0.4 V VGPIO(OH) GPIO Pin Output High Voltage IGPIO = –200µA, VCC = 2.7V ● VCC – 0.3 V IGPIO(IN) GPIO Pin Input Leakage Current VGPIO = 0V, 5.5V, VCC = 5.5V ● 0 ±1 µA
Stuck Low Timeout Circuitry
VTIMER(L) Stuck Low Falling Threshold Voltage VCC = 2.7V, 5.5V ● 0.4 0.52 0.64 V VTIMER(HYST) Stuck Low Threshold Hysteresis Voltage 80 mV TTIMER1 Timeout Time #1 TIMSET1,0 = 01 ● 25 30 35 ms TTIMER2 Timeout Time #2 TIMSET1,0 = 10 ● 12.5 15 17.5 ms TTIMER3 Timeout Time #3 TIMSET1,0 = 11 ● 6.25 7.5 8.75 ms
ALERT
VALERT(OL) ALERT Output Low Voltage IALERT = 3mA, VCC = 2.7V ● 0.2 0.4 V IOFF,ALERT ALERT Off State Input Leakage Current VALERT = 0V, 5.5V ● 0 ±1 µA IIN,ALERT1-4 ALERT1-ALERT4 Input Current VALERT1-4 = 0V, 5.5V ● 0 ±1 µA 4306f 3