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參數(shù)資料
| 型號： | NCP1395BPG |
| 廠商： | ON SEMICONDUCTOR |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | High Performance Resonant Mode Controller |
| 中文描述： | SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, PDIP16 |
| 封裝： | LEAD FREE, PLASTIC, DIP-8 |
| 文件頁數(shù)： | 15/27頁 |
| 文件大?。?/td> | 345K |
| 代理商： | NCP1395BPG |
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NCP1395A/B
http://onsemi.com
15
Finally, Two Circuit Versions, A and B:
The A and
B versions differ because of the following changes:
1. The startup thresholds are different, the A starts
to pulse for V
CC
= 12.8 V whereas the B pulses
for V
CC
= 10 V. The turn off levels are the
same, however. The A is recommended for
consumer products where the designer can use
an external startup resistor, whereas the B is
more recommended for industrial/medical
applications where a 12 V auxiliary supply
directly powers the chip.
2. The A version does not activate the softstart
upon release of the fast fault input. This is to let
the designer implement skip cycle. To the
opposite, the B version goes back to operation
upon the fast fault pin release via a softstart
sequence.
VoltageControlled Oscillator
The VCO section features a highspeed circuitry
allowing an internal operation from 100 kHz up to
2.0 MHz. However, as a division by two internally creates
the two Q and Qbar outputs, the final effective signal on
output A and B switches between 50 kHz and 1.0 MHz.
The VCO is configured in such a way that if the feedback
pin goes up, the switching frequency also goes up.
Figure 33 shows the architecture of this oscillator.
Vref
Vdd
Fmin
Rtm sets
Fmin for V(FB) < Vfb_off
Cint
Imin
+
0 to I_Fmax
IDT
FBinternal
max
Fsw
max
+
+
Clk
D
S
Q
Q
R
A
B
Vref
Vdd
Rdt sets
the deadtime
DT
Imin
Vdd
Fmax
Rtmax sets
the maximum Fsw
Vcc
FB
Rfb
20 k
+
+
Vfb < Vb_fault
start fault timer
Figure 33. Simplified VCO Architecture
Vb_fault
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| NCP1395A | High Performance Resonant Mode Controller(高性能諧振模式控制器) |
| NCP1395B | High Performance Resonant Mode Controller(高性能諧振模式控制器) |
| NCP1400A(中文) | 100 mA, Fixed Frequency PWM Step-Up Micropower Switching Regulator(100mA,固定頻率PWM升壓微功率開關(guān)穩(wěn)壓器) |
| NCP1400ASN30T1(中文) | 100 mA, Fixed Frequency PWM Step-Up Micropower Switching Regulator(微功率固定頻率脈寬調(diào)制升壓直流-直流交換器) |
| NCP1400ASN33T1(中文) | 100 mA, Fixed Frequency PWM Step-Up Micropower Switching Regulator(微功率固定頻率脈寬調(diào)制升壓直流-直流交換器) |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| NCP1395D | 制造商:ONSEMI 制造商全稱:ON Semiconductor 功能描述:High Performance Resonant Mode Controller |
| NCP1395LLCGEVB | 功能描述:BOARD EVAL NCP1395 RoHS:是 類別:編程器，開發(fā)系統(tǒng) >> 評估板 - DC/DC 與 AC/DC（離線）SMPS 系列:* 產(chǎn)品培訓(xùn)模塊:Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:1 系列:True Shutdown™ 主要目的:DC/DC，步升 輸出及類型:1，非隔離 功率 - 輸出:- 輸出電壓:- 電流 - 輸出:1A 輸入電壓:2.5 V ~ 5.5 V 穩(wěn)壓器拓?fù)浣Y(jié)構(gòu):升壓 頻率 - 開關(guān):3MHz 板類型:完全填充 已供物品:板 已用 IC / 零件:MAX8969 |
| NCP1396A | 制造商:ONSEMI 制造商全稱:ON Semiconductor 功能描述:High Performance Resonant Mode Controller featuring High−voltage Drivers |
| NCP1396A_10 | 制造商:ONSEMI 制造商全稱:ON Semiconductor 功能描述:High Performance Resonant Mode Controller featuring High-Voltage Drivers |
| NCP1396ADR2G | 功能描述:電壓模式 PWM 控制器 RESONANT MODE CTRLR DIODE 3.3V RoHS:否 制造商:Texas Instruments 輸出端數(shù)量:1 拓?fù)浣Y(jié)構(gòu):Buck 輸出電壓:34 V 輸出電流: 開關(guān)頻率: 工作電源電壓:4.5 V to 5.5 V 電源電流:600 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝 / 箱體:WSON-8 封裝:Reel |
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