參數(shù)資料
型號(hào): MC33364D2
廠商: MOTOROLA INC
元件分類: 穩(wěn)壓器
英文描述: CRITICAL CONDUCTION GREENLINEE SMPS CONTROLLER
中文描述: SWITCHING CONTROLLER, 126 kHz SWITCHING FREQ-MAX, PDSO8
封裝: PLASTIC, SO-8
文件頁(yè)數(shù): 9/14頁(yè)
文件大?。?/td> 269K
代理商: MC33364D2
MC33364
9
MOTOROLA ANALOG IC DEVICE DATA
In heavy load condition the ILED and Idiv is negligible. The
heavy load resistance is given by:
Rheavy
Vout
Iout
6.0 V
2.0 A
3.0
The output filter pole at heavy load of this output is
fpn
1
(2
RheavyCout)
1
(2 )(3)(300
F)
177 Hz
The gain exhibited by the open loop power supply at the
high input voltage will be:
A
Vin max
Vout
2
Ns
(Vin max)(Verror)(Np)
(382 V
(382 V)(1.2 V)(139)
6.0 V)2(7)
15.53
23.82 dB
The maximum recommended bandwidth is approximately:
fc
fsmin
5
70 kHz
5
14 kHz
The gain needed by the error amplifier to achieve this
bandwidth is calculated at the rated load because that yields
the bandwidth condition, which is:
Gc
20 log
fc
fph
A
20 log1177
23.82 dB
14.14 dB
The gain in absolute terms is:
Ac
10(Gc 20)
10(14.14 20)
51
Now the compensation circuit elements can be calculated.
The output resistance of the voltage sense divider is given by
the parallel combination of resistors in the divider:
Rin
Rupper|| Rlower
10 k || 14 k
5833
R9
(Ac) (Rin)
29.75 k
30 k
C8
1
2
(Ac) (Rin) (fc)
382 pF
390 pF
The compensation zero must be placed at or below the
light load filter pole:
C7
1
2
(R9) (fpn)
11.63
F
10
F
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參數(shù)描述
MC33364D2G 功能描述:電流型 PWM 控制器 Variable Frequency SMPS RoHS:否 制造商:Texas Instruments 開(kāi)關(guān)頻率:27 KHz 上升時(shí)間: 下降時(shí)間: 工作電源電壓:6 V to 15 V 工作電源電流:1.5 mA 輸出端數(shù)量:1 最大工作溫度:+ 105 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TSSOP-14
MC33364D2R2 功能描述:電流型 PWM 控制器 Variable Frequency RoHS:否 制造商:Texas Instruments 開(kāi)關(guān)頻率:27 KHz 上升時(shí)間: 下降時(shí)間: 工作電源電壓:6 V to 15 V 工作電源電流:1.5 mA 輸出端數(shù)量:1 最大工作溫度:+ 105 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TSSOP-14
MC33364D2R2G 功能描述:電流型 PWM 控制器 Variable Frequency SMPS RoHS:否 制造商:Texas Instruments 開(kāi)關(guān)頻率:27 KHz 上升時(shí)間: 下降時(shí)間: 工作電源電壓:6 V to 15 V 工作電源電流:1.5 mA 輸出端數(shù)量:1 最大工作溫度:+ 105 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TSSOP-14
MC33364DG 功能描述:電流型 PWM 控制器 Variable Frequency SMPS RoHS:否 制造商:Texas Instruments 開(kāi)關(guān)頻率:27 KHz 上升時(shí)間: 下降時(shí)間: 工作電源電壓:6 V to 15 V 工作電源電流:1.5 mA 輸出端數(shù)量:1 最大工作溫度:+ 105 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TSSOP-14
MC33364DR2 功能描述:電流型 PWM 控制器 Variable Frequency RoHS:否 制造商:Texas Instruments 開(kāi)關(guān)頻率:27 KHz 上升時(shí)間: 下降時(shí)間: 工作電源電壓:6 V to 15 V 工作電源電流:1.5 mA 輸出端數(shù)量:1 最大工作溫度:+ 105 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TSSOP-14