收藏本站
参数资料
型号： NCP1605DR2G
厂商： ON Semiconductor
文件页数： 26/32页
文件大小： 745K
描述： IC PFC CONTROLLER CCM/DCM 16SOIC
标准包装： 1
系列： Soft-Skip™
模式： 临界传导（CRM），间歇导电（DCM）
频率 - 开关： 250kHz
电流 - 启动： 12mA
电源电压： 10 V ~ 20 V
工作温度： 0°C ~ 125°C
安装类型： 表面贴装
封装/外壳： 16-SOIC（0.154"，3.90mm 宽）
供应商设备封装： 16-SOIC
包装： 标准包装
其它名称： NCP1605DR2GOSDKR
NCP1605, NCP1605A, NCP1605B
http://onsemi.com
26
Figure 65. Oscillator Timing Diagram
Figure 66. Oscillator / Synchronization Block
Osc/Sync
DT
100 mA
200 mA
CLOCK
Generation
Latch
S
Q
R
(PWM latch
SET input)
delay
(DT is high
during the
deadtime)
COMP_OSC
CLK
Ct_OK
Discontinuous Mode
Critical Mode
Time
Clock
Clock
Edge
Set
Signal
Inductor
Current
-
+
V
OSC
H/V
OSC
L
Figure 67. The Current Source brings V
CC
 above 15 V and then Turns Off
15 mA / 0
10
HV
HV
GND
Cvcc
Auxiliary
Winding
15 V / 7 V
9 V
HVCS_ON
UVLO
(When high, UVLO indicates that the circuit is not properly fed and it sets the Fault latch to turn off the circuit)
+
V
CC
9
16
-
+
+
-
Startup Sequence / V
CC
 Management
At the moment when the PFC stage is plugged to the
mains outlet, the internal current source starts charging the
V
CC
 capacitor. More generally, the startup current source
is enabled whenever V
CC
 drops below V
CC
STUP (7 V,
typically). When V
CC
 exceeds the V
CC
ON level (typically
15 V for the NCP1605 and NCP1605B, 10.5 V for the
NCP1605A), the current source turns off and the circuit
starts pulsing.
The energy stored by the V
CC
 capacitor serves to feed the
controller and some auxiliary supply must take over before
V
CC
 drops below V
CC
OFF (9 V, typically), that is, the level
below which the circuit stops pulsing.
Hence, the circuit starts operating when the V
CC
 voltage
exceeds V
CC
ON and stops pulsing when V
CC
 drops below
V
CC
OFF. The hysteresis (6 V for the NCP1605 and
NCP1605B, 1.5 V for the NCP1605A) prevents erratic
operation as the V
CC
 crosses the V
CC
ON threshold.
Figure 67 shows the internal arrangement of this
structure (the V
CC
 turn on threshold of Figure 67 is that of
the NCP1605/B). One can note that the startup current
source is on during the V
CC
 charging phase and off for the
rest of the time. Hence, it spends no power during the PFC
stage operation and in particular, in light load conditions.
That is why the NCP1605 helps meet the most stringent
standby requirements.
Remarks:
" Some circuitry (not represented in Figure 67) limits
the HV pin current to IC2 (below 1 mA) if the V
CC
voltage is below V
CC
INHIBIT. This protects the
circuit when the V
CC
 pin is accidentally grounded.
The full current capability (around 15 mA) is obtained
when V
CC
 exceeds V
CC
INHIBIT.
" The circuit is also kept off when the startup current
source is on to make a clear distinction between the
V
CC
 charge phase and the operating sequence (refer to
HVCS_ON signal on block diagram).
相关PDF资料
PDF描述
NCP1606BDR2G IC POWER FACTOR CONTROLLER 8SOIC
NCP1607BDR2G IC PFC CONTROLLER CRM 8SOIC
NCP1611BDR2G IC PFC CTLR HE ENHANCED 8-SOIC
NCP1651DR2G IC PFC CONTROLLER CCM/DCM 16SOIC
NCP1654BD133R2G IC PFC CCM 133KHZ 8-SOIC
相关代理商/技术参数
参数描述
NCP1605FORWGEVB 功能描述:电源管理IC开发工具 NCP1605 152 W FORWARD EVB RoHS:否 制造商:Maxim Integrated 产品:Evaluation Kits 类型:Battery Management 工具用于评估:MAX17710GB 输入电压: 输出电压:1.8 V
NCP1605LCDTVGEVB 功能描述:BOARD EVAL NCP1605/1396 RoHS:是 类别:编程器，开发系统 >> 评估演示板和套件 系列:* 产品培训模块:Obsolescence Mitigation Program 标准包装:1 系列:- 主要目的:电源管理，电池充电器 嵌入式:否 已用 IC / 零件:MAX8903A 主要属性:1 芯锂离子电池 次要属性:状态 LED 已供物品:板
NCP1606ADR2G 功能描述:功率因数校正 IC PWR FCTR CONTROLLER RoHS:否 制造商:Fairchild Semiconductor 开关频率:300 KHz 最大功率耗散: 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 封装:Reel
NCP1606APG 功能描述:功率因数校正 IC LO CST PWR FCTR CONT RoHS:否 制造商:Fairchild Semiconductor 开关频率:300 KHz 最大功率耗散: 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 封装:Reel
NCP1606BDR2G 功能描述:功率因数校正 IC PWR FCTR CONTROLLER RoHS:否 制造商:Fairchild Semiconductor 开关频率:300 KHz 最大功率耗散: 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 封装:Reel
发布紧急采购，3分钟左右您将得到回复。

采购需求

(若只采购一条型号，填写一行即可)

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

*型号 *数量 厂商 批号 封装
添加更多采购

我的联系方式

*
*
*