Datasheet LTC1694-1 (Analog Devices) - 2
| Manufacturer | Analog Devices |
| Description | SMBus/I2C Accelerator |
| Pages / Page | 8 / 2 — ABSOLUTE MAXIMUM RATINGS. PACKAGE/ORDER INFORMATION. (Note 1). ELECTRICAL … |
| File Format / Size | PDF / 185 Kb |
| Document Language | English |
ABSOLUTE MAXIMUM RATINGS. PACKAGE/ORDER INFORMATION. (Note 1). ELECTRICAL CHARACTERISTICS The
Model Line for this Datasheet
Text Version of Document
LTC1694-1
W W W U U W U ABSOLUTE MAXIMUM RATINGS PACKAGE/ORDER INFORMATION (Note 1)
ORDER PART Supply Voltage (VCC) ... 7V TOP VIEW NUMBER SMBus1, SMBus2 Inputs .. – 0.3V to (VCC + 0.3V) VCC 1 5 SMBus1 Operating Ambient Temperature Range GND 2 LTC1694-1CS5 LTC1694-1C ... 0°C to 70°C NC 3 4 SMBus2 LTC1694-1IS5 LTC1694-1I ... – 40°C to 85°C S5 PACKAGE Junction Temperature ... 125°C 5-LEAD PLASTIC TSOT-23 S5 PART MARKING Storage Temperature Range ... – 65°C to 150°C TJMAX = 125°C, θJA = 256°C/ W LTHE Lead Temperature (Soldering, 10 sec.)... 300°C LTA9 Consult LTC Marketing for parts specified with wider operating temperature ranges.
ELECTRICAL CHARACTERISTICS The
●
denotes specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25
°
C. VCC = 2.7V to 6V, unless otherwise noted. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
VCC Supply Voltage Range 2.7 6 V ICC Supply Current SMBus1 = SMBus2 = VCC ● 15 45 80 µA IPULL-UP Pull-Up Current Positive Transition on SMBus ( Figure 1) ● 1.0 2.2 mA Slew Rate = 0.5V/µs, SMBus > VTHRES VTHRES Input Threshold Voltage Slew Rate = 0.5V/µs (Figure 1) ● 0.4 0.65 0.9 V SRTHRES Slew Rate Detector Threshold SMBus > VTHRES ● 0.2 0.5 V/µs tr SMBus Rise Time Bus Capacitance = 200pF (Note 2) ● 0.32 1.0 µs Standard Mode I2C Bus Rise Time Bus Capacitance = 400pF (Note 3) ● 0.30 1.0 µs fMAX SMBus Maximum Operating Frequency (Note 4) ● 100 kHz
Note 1:
Absolute Maximum Ratings are those values beyond which the life
Note 3:
The rise time of an I2C bus line is calculated from VIL(MAX) to of a device may be impaired. VIH(MIN) or 1.5V to 3V (with VCC = 5V). This parameter is guaranteed by
Note 2:
The rise time of an SMBus line is calculated from (V design and not tested. With a minimum boosted pull-up current of 1mA: IL(MAX) – 0.15V) to (VIH(MIN) + 0.15V) or 0.65V to 2.25V. This parameter is Rise Time = (3V – 1.5V) • 400pF/1mA = 0.6µs guaranteed by design and not tested. With a minimum initial slew rate of
Note 4:
This parameter is guaranteed by design and not tested. 0.5V/µs, a minimum pull-up current of 1mA and a maximum input threshold voltage of 0.9V: Rise Time = [(0.9V – 0.65V)/0.5V/µs] + [(2.25V – 0.9V) • 200pF/1mA] = 0.77µs 16941fa 2
W W W U U W U ABSOLUTE MAXIMUM RATINGS PACKAGE/ORDER INFORMATION (Note 1)
ORDER PART Supply Voltage (VCC) ... 7V TOP VIEW NUMBER SMBus1, SMBus2 Inputs .. – 0.3V to (VCC + 0.3V) VCC 1 5 SMBus1 Operating Ambient Temperature Range GND 2 LTC1694-1CS5 LTC1694-1C ... 0°C to 70°C NC 3 4 SMBus2 LTC1694-1IS5 LTC1694-1I ... – 40°C to 85°C S5 PACKAGE Junction Temperature ... 125°C 5-LEAD PLASTIC TSOT-23 S5 PART MARKING Storage Temperature Range ... – 65°C to 150°C TJMAX = 125°C, θJA = 256°C/ W LTHE Lead Temperature (Soldering, 10 sec.)... 300°C LTA9 Consult LTC Marketing for parts specified with wider operating temperature ranges.
ELECTRICAL CHARACTERISTICS The
●
denotes specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25
°
C. VCC = 2.7V to 6V, unless otherwise noted. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
VCC Supply Voltage Range 2.7 6 V ICC Supply Current SMBus1 = SMBus2 = VCC ● 15 45 80 µA IPULL-UP Pull-Up Current Positive Transition on SMBus ( Figure 1) ● 1.0 2.2 mA Slew Rate = 0.5V/µs, SMBus > VTHRES VTHRES Input Threshold Voltage Slew Rate = 0.5V/µs (Figure 1) ● 0.4 0.65 0.9 V SRTHRES Slew Rate Detector Threshold SMBus > VTHRES ● 0.2 0.5 V/µs tr SMBus Rise Time Bus Capacitance = 200pF (Note 2) ● 0.32 1.0 µs Standard Mode I2C Bus Rise Time Bus Capacitance = 400pF (Note 3) ● 0.30 1.0 µs fMAX SMBus Maximum Operating Frequency (Note 4) ● 100 kHz
Note 1:
Absolute Maximum Ratings are those values beyond which the life
Note 3:
The rise time of an I2C bus line is calculated from VIL(MAX) to of a device may be impaired. VIH(MIN) or 1.5V to 3V (with VCC = 5V). This parameter is guaranteed by
Note 2:
The rise time of an SMBus line is calculated from (V design and not tested. With a minimum boosted pull-up current of 1mA: IL(MAX) – 0.15V) to (VIH(MIN) + 0.15V) or 0.65V to 2.25V. This parameter is Rise Time = (3V – 1.5V) • 400pF/1mA = 0.6µs guaranteed by design and not tested. With a minimum initial slew rate of
Note 4:
This parameter is guaranteed by design and not tested. 0.5V/µs, a minimum pull-up current of 1mA and a maximum input threshold voltage of 0.9V: Rise Time = [(0.9V – 0.65V)/0.5V/µs] + [(2.25V – 0.9V) • 200pF/1mA] = 0.77µs 16941fa 2
