参数资料
| 型号： | NCP1395BPG |
| 厂商： | ON Semiconductor |
| 文件页数： | 15/27页 |
| 文件大小： | 0K |
| 描述： | IC REG CTRLR PWM VM 16-DIP |
| 标准包装： | 25 |
| PWM 型： | 电压模式 |
| 输出数： | 2 |
| 频率 - 最大： | 1.11MHz |
| 占空比： | 52% |
| 电源电压： | 9.3 V ~ 20 V |
| 降压： | 无 |
| 升压： | 无 |
| 回扫： | 无 |
| 反相： | 无 |
| 倍增器： | 无 |
| 除法器： | 无 |
| Cuk： | 无 |
| 隔离： | 无 |
| 工作温度： | -40°C ~ 125°C |
| 封装/外壳： | 16-DIP（0.300"，7.62mm） |
| 包装： | 管件 |
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NCP1395A/B
? 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
Voltage ? Controlled Oscillator
The VCO section features a high ? speed 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
Vdd
more recommended for industrial/medical
applications where a 12 V auxiliary supply
directly powers the chip.
2. The A version does not activate the soft ? start
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 soft ? start
sequence.
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.
FBinternal
+
-
max
Fsw
Fmin
Rt ? m sets
Vref
Imin
0 to I_Fmax
+
-
max
S
D
Clk
Q
Q
Fmin for V(FB) < Vfb_off
Cint
+
R
Vdd
IDT
A
B
DT
Rdt sets
the deadtime
Fmax
Vref
Imin
Vdd
Vcc
Rt ? max sets
the maximum Fsw
FB
Rfb
-
+
Vfb < Vb_fault
start fault timer
20 k
Vb_fault
Figure 33. Simplified VCO Architecture
http://onsemi.com
15
+
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相关代理商/技术参数 |
参数描述 |
|---|---|
| NCP1395D | 制造商:ONSEMI 制造商全称:ON Semiconductor 功能描述:High Performance Resonant Mode Controller |
| NCP1395LLCGEVB | 功能描述:BOARD EVAL NCP1395 RoHS:是 类别:编程器，开发系统 >> 评估板 - DC/DC 与 AC/DC（离线）SMPS 系列:* 产品培训模块:Obsolescence Mitigation Program 标准包装:1 系列:True Shutdown™ 主要目的:DC/DC，步升 输出及类型:1，非隔离 功率 - 输出:- 输出电压:- 电流 - 输出:1A 输入电压:2.5 V ~ 5.5 V 稳压器拓扑结构:升压 频率 - 开关:3MHz 板类型:完全填充 已供物品:板 已用 IC / 零件:MAX8969 |
| NCP1396A | 制造商:ONSEMI 制造商全称:ON Semiconductor 功能描述:High Performance Resonant Mode Controller featuring High−voltage Drivers |
| NCP1396A_10 | 制造商:ONSEMI 制造商全称:ON Semiconductor 功能描述:High Performance Resonant Mode Controller featuring High-Voltage Drivers |
| NCP1396ADR2G | 功能描述:电压模式 PWM 控制器 RESONANT MODE CTRLR DIODE 3.3V RoHS:否 制造商:Texas Instruments 输出端数量:1 拓扑结构:Buck 输出电压:34 V 输出电流: 开关频率: 工作电源电压:4.5 V to 5.5 V 电源电流:600 uA 最大工作温度:+ 125 C 最小工作温度:- 40 C 封装 / 箱体:WSON-8 封装:Reel |
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