XRP7713_10 Datasheet, PDF (4/29 Pages) Exar Corporation – Three Channel Digital PWM Step Down Controller

XRP7713
Three Channel Digital PWM Step Down Controller
Digital Input/Output Pins (GPIO1-GPIO5) and ENABLE
3.3V CMOS logic compatible, 5V tolerant.
Parameter
Enable Pin Threshold
Input Pin Low Level
Input Pin High Level
Input Pin Leakage Current
Input pin Capacitance
Output Pin Low Level
Output Pin High Level
Output Pin High Level (no load)
Min.
1.08
2.0
2.4
Typ.
1.14
5
3.3
Max.
1.2
0.8
10
0.4
3.6
Units
V
V
V
µA
pF
V
V
V
Conditions
Chip Enable rising threshold
•
•
• V_IO=3.3V
• I_SINK=1mA
• I_SOURCE=1mA
• I_SOURCE=0mA
I²C Specification
Parameter
I²C Speed
Input Pin Low Level, VIL
Input Pin High Level, VIH
Hysteresis of Schmitt Trigger
Inputs, VHYS
Output Pin Low Level (open
drain or collector) VOL
Input Leakage Current
Output Fall Time from VIHMIN to
VILMAX
Capacitance for each I/O Pin
Min.
2.31
0.165
-10
20+0.1Cb3
Typ.
Note 3: Cb is the capacitance of one bus in pF
Max.
400
1.0
0.4
10
250
10
Units
kHz
V
V
V
V
µA
ns
pF
Conditions
Based upon I²C master clock
ISINK=3mA
Input is between 0.33V and 2.31V
With a bus capacitance from 10pF to
400pF
Gate Drivers
Parameter
GH, GL Rise and Fall Time
GH, GL Pull-up On-State Output
Resistance
GH, GL Pull-down On-State
Output Resistance
GH, GL Pull-down Off-State
Output Resistance
Min.
Typ.
30
6
3
50
Max.
Units
ns
Ω
Ω
kΩ
Conditions
At 10% to 90% of full scale pulse.
1nF Cload
VIN=VCCD=0V
© 2010 Exar Corporation
4/29
Rev. 1.1.1