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參數(shù)資料
| 型號(hào)： | PQ1CZ38M2ZSERIES |
| 英文描述： | CHOPPER REGULATOR |
| 中文描述： | 斬波調(diào)壓器 |
| 文件頁數(shù)： | 6/8頁 |
| 文件大?。?/td> | 74K |
| 代理商： | PQ1CZ38M2ZSERIES |
Chopper Regulators
PQ1CZ1
I
Thermal Protection Design
Internal power dissipation(P)of device is generally obtained by the following equation.
I
External Connection
+
V
IN
C
IN
C
S
C
O
V
O
R
2
R
1
Load
D
1
2
4
3
5
L
+
q
Wiring condition is very important. Noise associated with wiring inductance may cause problems.
For minimizing inductance, it is recommended to design the thick and short pattern (between large current diodos, input/
output capacitors, and terminal 1,2.)Single-point grounding(as indicated)should be used for best results.
When output voltage is not stable, it can be improved by attaching capacitor(from several nF to several dozens nF)to
external resistor R
2
.
High switching speed and low forward voltage type schottky barrier diode should be recommended for the catch-diode D
because it affects the efficiency. Please select the diode which the current rating is at least 1.2 times greater than maximum
swiching current.
The output ripple voltage is highly influenced by ESR(Equivalent Series Resistor)of output capacitor, and can be minimized
by selecting Low ESR capacitor.
An inductor should not be operated beyond its maximum rated current so that it may not saturate.
w
e
r
t
When ambient temperature Ta and power dissipation P
D
(MAX)during operation are determined, use Cu plate which allows the
element to operate within the safety operation area specified by the derating curve. Insufficient radiation gives an unfavorable
influence to the normal operation and reliability of the device.
P=I
SW
(Average.) x V
SAT
xD' + V
IN
(voltage between V
IN
to COM terminal) x I
q
'(consumption current)
Step down type
––––––––––––––
D'(Duty)=
T(T
=
–V
I
SW
(Average)= I
O
(Output current.)
Polarity inversion type
––––––––––––––––––––
on
O
+V
F
IN
–
V
SAT
+V
F
D'(Duty)=
T(T
=
–––V
–
D'
I
SW
(Average)=
––1
x I
O
(Output current.)
on
O
|+V
F
IN
+|V
O
|
–
V
SAT
+V
F
V
F
: Forward voltage of the diode
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PQ1CZ38M2ZZ | 功能描述:IC REG BUCK INV ADJ 0.8A SC63 RoHS:否 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 開關(guān)穩(wěn)壓器 系列:- 標(biāo)準(zhǔn)包裝:20 系列:SIMPLE SWITCHER® 類型:降壓（降壓） 輸出類型:固定 輸出數(shù):1 輸出電壓:12V 輸入電壓:4 V ~ 60 V PWM 型:電壓模式 頻率 - 開關(guān):52kHz 電流 - 輸出:1A 同步整流器:無 工作溫度:-40°C ~ 125°C 安裝類型:通孔 封裝/外殼:16-DIP（0.300"，7.62mm） 包裝:管件 供應(yīng)商設(shè)備封裝:16-DIP 其它名稱:*LM2575HVN-12LM2575HVN-12 |
| PQ1CZ38M2ZZH | 功能描述:開關(guān)變換器、穩(wěn)壓器與控制器 40V 0.8A 300KH RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開關(guān)頻率:1 MHz 工作溫度范圍: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel |
| PQ1CZ41H2ZPH | 功能描述:開關(guān)變換器、穩(wěn)壓器與控制器 40V 1.5A 300KHz RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開關(guān)頻率:1 MHz 工作溫度范圍: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel |
| PQ1CZ41H2ZSERIES | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:CHOPPER REGULATOR |
| PQ1CZ41H2ZXH | 制造商:SHARP 制造商全稱:Sharp Electrionic Components 功能描述:TO-220 Type Chopper Regulator, built-in 300kHz oscillation circuit |
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