參數(shù)資料
型號: PQ1CY1032Z
廠商: Sharp Corporation
英文描述: TO-263 Surface Mount Type Chopper Regulator
中文描述: TO - 263表面安裝型斬波調(diào)壓
文件頁數(shù): 7/9頁
文件大?。?/td> 86K
代理商: PQ1CY1032Z
PQ1CY1032Z
I
ON/OFF Control Terminal
1. In the following circuit,when V
soft
terminal becomes low (loss than V
THON
) by switching transistor Tr on, output voltage may be
turned OFF and the device becomes stand-by mode. Dissipation current at stand-by mode becomes Max.400
μ
A.
When transistor Tr becomes OFF, output voltage can be ON.
External resistor Rs should be leaded to avold discharge current of C
S
, and not to break the transistor Tr.
2. Soft startup
When capacitor C
S
is loaded, output pulse gradually expanded and output voltage will start softly.
3. Over current protection
When the voltage of V
soft
is more than V
THIL
, over current shut down function will operate. And when the voltage of V
soft
is
less than V
THIL
, over current protection function will operate. Since the
PQ1CY1032Z
must use an capacitor C
S
, V
soft
should be
more than V
THIL
, over current shut down function will operate.
1
2
L
D
5
3
4
PQ1CY1032Z
R
1
R
2
V
O
I
O
C
O
C
IN
C
S
Tr
R
S
V
IN
+
+
ON/OFF control signal
Load
5
5
5
5
I
Thermal Protection Design
Internal power dissipation(P)of device is generally obtained by the following equation.
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.)
×
V
SAT
×
D' + V
IN
(voltage between V
IN
to COM terminal)
×
I
Q
'(consumption current)
Step down type
––––––––––––––
D'(Duty)= T(T
I
SW
(Average)= I
O
(Output current.)
on
V
O
+V
F
V
IN
V
SAT
+V
F
Polarity inversion type
––––––––––––––––––––
D'(Duty)= T(T
D'
I
SW
(Average)= ––1
×
I
O
(Output current.)
on
|V
O
|+V
F
V
IN
+|V
O
|
V
SAT
+V
F
V
F
: Forward voltage of the diode
相關(guān)PDF資料
PDF描述
PQ1CY1032Z_1 TO-263 Surface Mount Type Chopper Regulator
PQ1CY1032ZP TO-263 Surface Mount Type Chopper Regulator
PQ1CY333LZPH To-263 Surface Mount Type Chopper Regulator
PQ1CY503LZPH To-263 Surface Mount Type Chopper Regulator
PQ1CYXX3LZPH To-263 Surface Mount Type Chopper Regulator
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
PQ1CY1032Z_1 制造商:SHARP 制造商全稱:Sharp Electrionic Components 功能描述:TO-263 Surface Mount Type Chopper Regulator
PQ1CY1032ZP 制造商:Sharp Microelectronics Corporation 功能描述:Swithed-Mode Power Supply Controller, Voltage Mode Type, 5 Pin, Plastic, SIP
PQ1CY1032ZPH 功能描述:開關(guān)變換器、穩(wěn)壓器與控制器 40V 3.5A 150kH 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
PQ1CY1032ZSERIES 制造商:未知廠家 制造商全稱:未知廠家 功能描述:CHOPPER REGULATOR
PQ1CY1032ZXH 制造商:SHARP 制造商全稱:Sharp Electrionic Components 功能描述:To-263 Surface Mount Type Chopper Regulator