參數(shù)資料
型號: NCP1395APG
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: NCP1395APG
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
NCP1395ADR2G High Performance Resonant Mode Controller
NCP1395BDR2G High Performance Resonant Mode Controller
NCP1395BPG High Performance Resonant Mode Controller
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)
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
NCP1395B 制造商:ONSEMI 制造商全稱:ON Semiconductor 功能描述:High Performance Resonant Mode Controller
NCP1395BDR2G 功能描述:電壓模式 PWM 控制器 PWM CONTROLLER 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
NCP1395BPG 功能描述:電壓模式 PWM 控制器 PWM CONTROLLER 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
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