MAX8688 Просмотр технического описания (PDF) - Maxim Integrated
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MAX8688 Datasheet PDF : 38 Pages
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Digital Power-Supply Controller/Monitor
with PMBus Interface
ELECTRICAL CHARACTERISTICS (continued)
(VAVDD = VDVDD = 3.3V, TA = TJ = -40°C to +85°C, VRS+ - VRS- = 2V, VRS- = VAGND, unless otherwise stated.) (Note 3)
PARAMETER
RST INPUT
RST Input Low Voltage
RST Input High Voltage
RST Input Bias Current
SYMBOL
CONDITIONS
VRST_IL
VRST_IH
VDVDD = 3.0V to 3.6V
VDVDD = 3.0V to 3.6V
RST = DVDD or DGND
MIN TYP MAX UNITS
0.8
V
2.1
V
10
µA
Minimum SMBus Interface Reset
Pulse Width
tSMB_RST
1
455
µs
SMBus Interface Recovery Time
After Interface Reset
tSMB_WAIT
15
µs
Minimum Reset Pulse Width
Recovery Time After Device Reset
OTHER TIMING PARAMETERS
PMBus Command Response Time
Fault Response Time
tRST
tRST_WAIT
tPMB_RSP
tFAULT_RSP
Overvoltage fault
Overcurrent fault
565
µs
15
µs
300
µs
5
ms
5
Note 3: Production tested at TA = +25°C and TA = +85°C. Specifications from TA = -40°C to +25°C are guaranteed by design,
unless otherwise noted.
Note 4: Production tested at TA = +85°C only. All other temperatures are guaranteed by design.
Note 5: When an EEPROM is connected to A2/SDAE and A1/SCLE, these pins cannot be hardwired to ground or supply. They must
be connected through 33kΩ ±5% resistors.
Note 6: Equivalent of having 33kΩ pulldown resistor to DGND.
Note 7: Equivalent of having 33kΩ pullup resistor to DVDD.
(VAVDD = VDVDD = 3.3V, TA = +25°C, unless otherwise noted.)
REFIN MODE SOFT-START
WITH TRACKING
MAX8688 toc01
VOUT_4 = 1.8V
VOUT_3 = 1.5V
VOUT_2 = 1.2V
VOUT_1 = 1.0V
0.5V/div
Typical Operating Characteristics
VOUT_4 = 1.8V
VOUT_3 = 1.5V
VOUT_2 = 1.2V
VOUT_1 = 1.0V
REFIN MODE SOFT-STOP
WITH TRACKING
MAX8688 toc02
0.5V/div
2ms/div
2ms/div
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