參數(shù)資料
型號(hào)： SI8244CB-C-IS1
廠商： Silicon Laboratories Inc
文件頁數(shù)： 15/30頁
文件大小： 0K
描述： IC AUDIO DRIVER PWM 16-SOIC
標(biāo)準(zhǔn)包裝： 48
類型： 音頻驅(qū)動(dòng)器
應(yīng)用： D 類音頻放大器
安裝類型： 表面貼裝
封裝/外殼： 16-SOIC（0.154"，3.90mm 寬）
供應(yīng)商設(shè)備封裝： 16-SOIC N
包裝： 管件
其它名稱： 336-2000-5
SI8244CB-B-IS1
Si824x
22
Rev. 1.0
3.8. Programmable Dead Time and Overlap Protection
All high-side/low-side drivers (Si8241/4) include programmable overlap protection to prevent outputs VOA and
VOB from being high at the same time. These devices also include programmable dead time, which adds a user-
programmable delay between transitions of VOA and VOB. When enabled, dead time is present on all transitions,
even after overlap recovery. The amount of dead time delay (DT) is programmed by a single resistor (RDT)
connected from the DT input to ground per Equation 5. Minimum dead time (approximately 400 ps) can be
achieved by connecting the DT pin to VDDI. Note that dead time accuracy is limited by the resistor’s (RDT)
tolerance and temperature coefficient. See Figures 37 and 38 for additional information about dead time operation.
Equation 5.
Figure 37. Dead Time vs.Resistance (RDT)
Figure 38. Dead Time vs.Temperature
DT
10
RDT
where:
DT
dead time (ns)
and
RDT
dead time programming resistor (k
=
0
100
200
300
400
500
600
700
800
900
1000
0
20
40
60
80
100
Dead-
time
(ns)
Dead-time Resistance (k
:
:)
0
10
20
30
40
50
60
70
80
90
100
-40
-20
0
20
40
60
80
100
120
Dead-time
(ns)
Temperature (
°C)
R
DT = 4k
R
DT = 10k
R
DT = 3
k
R
DT = 5k
R
DT = 6k
R
DT = 2
k
R
DT = 1
k
R
DT =0
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相關(guān)代理商/技術(shù)參數(shù)
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