MAX8688
Digital Power-Supply Controller/Monitor
with PMBus Interface
4 _______________________________________________________________________________________
ELECTRICAL CHARACTERISTICS (continued)
(V
AVDD
= V
DVDD
= 3.3V, T
A
= T
J
= -40°C to +85°C, V
RS+
- V
RS-
= 2V, V
RS-
= V
AGND
, unless otherwise stated.) (Note 3)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
DAC
DAC Resolution 12 bits
DAC Output-Voltage Range No load
REFO -
1 LSB
V
DAC Output-Voltage Slew Rate 0.6 V/µs
DAC Output Resistance 5 Ω
DAC Driving Capability 2mA
ADC
MAX8688A 12
ADC Resolution
MAX8688B 11
Bits
THREE-STATE ADDRESS PINS (A3/ONOFF, A2/SDAE, A1/SCLE)
Three-State Address Pins Input
Low Voltage
0.3 V
Three-State Address Pins Input
Low Threshold Hysteresis
50 mV
Three-State Address Pins Input
High Voltage
AVDD -
0.4
V
Three-State Address Pins Input
High Threshold Hysteresis
50 mV
Three-State Address Pins Input
Bias Current
V
AVDD
= 3.6V, A3/ONOFF = A2/SDAE =
A1/SCLE = AVDD or AGND
-12 +12 µA
THREE-STATE ADDRESS PINS (A2/SDAE (DATA) AND A1/SCLE (CLOCK) WITH EEPROM) (Note 5)
A2/SDAE, A1/SCLE Output Low
Voltage
Output sink current = 100µA (Note 6)
0.3 x
AVDD
V
A2/SDAE, A1/SCLE Output High
Voltage
Output source current = 100µA (Note 7)
0.7 x
AVDD
V
THREE-STATE ADDRESS PIN (A3/ONOFF AS POL ON/OFF CONTROL)
Minimum A3/ONOFF Control Pulse
Low Time
t
A3_LOW
250 µs
Minimum A3/ONOFF Control Pulse
High Time
t
A3_HIGH
750 µs
SCL, SDA SMBus™ SIGNALS
Maximum SMBus Speed 100 kHz
SCL, SDA Input Low Voltage V
SMB_IL
V
DVDD
= 3.0V to 3.6V 0.8 V
SCL, SDA Input High Voltage V
SMB_IH
V
DVDD
= 3.0V to 3.6V 2.1 DVDD V
SCL, SDA Output Low Voltage V
SMB_OL
V
DVDD
= 3.0V to 3.6V at I
SINK
= 4mA 0.4 V
SCL, SDA Input Leakage Per
Device Pin
I
SMB_ILEAK
V
DVDD
= 3.6V, V
SCL
= V
SDA
= 0 or 3.6V -1 +1 µA
SMBus is a trademark of Intel Corp.
