Rainbow-electronics MAX16064 Manual do Utilizador descarregar pdf (Página 4)

MAX16064

±0.3% Accurate, Quad, Power-Supply Controller with

Active-Voltage Output Control and PMBus Interface

4 _______________________________________________________________________________________

ELECTRICAL CHARACTERISTICS (continued)

AVDD

= V

DVDD

= 3.0V to 3.6V, V

= 2V, V

RS_+

- V

RS_-

= 2V, V

RS_-

= 0V, T

= T

= -40°C to +85°C, unless otherwise specified.

Typical values are at V

AVDD

= V

DVDD

= 3.3V, T

= +25°C.) (Note 2)

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

ADDRESS PINS (A1/SCLE, A2/SDAE, A3/CONTROL)

Input Logic-Low Voltage 0.3 V

Input Logic-Low Hysteresis 50 mV

Input Logic-High Voltage

AVDD

- 0.4

Input Logic-High Hysteresis 50 mV

Input Leakage Current -12 +12 µA

SMBus INTERFACE (SCL, SDA) (Note 3)

SCL, SDA Input Low Voltage V

Input voltage falling 0.8 V

SCL, SDA Input High Voltage V

Input voltage rising 2.1 V

SCL, SDA Input Leakage Current

(Per Pin)

Device powered or unpowered, V

AVDD

= 0V

to 3.6V, V

SCL

= V

SDA

= 0 or V

AVDD

-1 +1 µA

Input Capacitance C

10 pF

SCL, SDA Output Low Voltage V

SINK

= 3mA 0.4 V

SMBUS TIMING

Serial-Clock Frequency f

SCL

10 100 kHz

Bus Free Time Between STOP

and START Condition

BUF

4.7 µs

START Condition Setup Time t

SU:STA

4.7 µs

START Condition Hold Time t

HD:STA

4.0 µs

STOP Condition Setup Time t

SU:STO

4.0 µs

Clock Low Period t

LOW

4.7 µs

Clock High Period t

HIGH

4.0 µs

Data Setup Time t

SU:DAT

250 ns

Output Fall Time t

BUS

= 10pF to 400pF 300 ns

Data Hold Time t

HD:DAT

From 50% SCL falling to SDA change 300 ns

Pulse Width of Spike Suppressed t

30 ns

SMBus Timeout t

TIMEOUT

SMBCLK time low for reset 25 55 ms

OTHER TIMING PARAMETERS

PMBus Command Response

Time

PMB_RSP

300 µs

Fault Response Time t

FAULT_RSP

5ms

Recovery Time After Device

Reset

RST_WAIT

15 µs

Note 2: 100% production tested at T

= +25°C. Limits over temperature are guaranteed by design.

Note 3: The MAX16064 supports SCL clock stretching.

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MAX16064 1

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