XRP7724
Quad Channel Digital PWM/PFM
Programmable Power Management System
SMBUS (I2C) INTERFACE
Parameter
Min.
Typ.
Max.
Units
Conditions
VIO = 3.3 V ±10%
Input Pin Low Level, VIL
Input Pin High Level, VIH
0.3 VIO
V
V
VIO = 3.3 V±10%
0.7 VIO
Hysteresis of Schmitt Trigger
inputs, Vhys
V
VIO = 3.3 V±10%
0.05 VIO
Output Pin Low Level (open
drain or collector), VOL
0.4
10
V
ISINK = 3mA
Input leakage current
µA
ns
pF
Input is between 0.1 VIO and 0.9 VIO
-10
Output fall time from VIHmin to
VILmax
With a bus capacitance (Cb)from 10 pF to
400 pF
20 + 0.1
Cb
250
1
Internal Pin Capacitance
GATE DRIVERS
Parameter
Min.
Typ.
Max.
Units
Conditions
GH, GL Rise Time
GH, GL Fall Time
17
11
ns
ns
At 10-90% of full scale, 1nF Cload
GH, GL Pull-Up On-State Output
Resistance
4
2
5
Ω
Ω
GH, GL Pull-Down On-State
Output Resistance
2.5
GH, GL Pull-Down Resistance in
Off-Mode
50
9
kΩ
Ω
VCC = VCCD = 0V.
@ 10mA
Bootstrap diode forward
resistance
Minimum On Time
Minimum Off Time
50
ns
ns
1nF of gate capacitance.
1nF of gate capacitance
125
Minimum Programmable Dead
Time
20
ns
Does not include dead time variation from
driver output stage
Tsw=switching period
Maximum Programmable Dead
Time
Tsw
607
Programmable Dead Time
Adjustment Step
ps
© 2012 Exar Corporation
6/29
Rev. 1.0.1
EXAR [ EXAR CORPORATION ]
