参数资料
型号: NCP1654BP65G
厂商: ON Semiconductor
文件页数: 6/23页
文件大小: 228K
描述: IC PFC CCM STEP UP 8-PDIP
标准包装: 50
模式: 连续导电(CCM)
频率 - 开关: 58kHz ~ 72kHz
电流 - 启动: 75µA
电源电压: 9 V ~ 20 V
工作温度: -40°C ~ 125°C
安装类型: 通孔
封装/外壳: 8-DIP(0.300",7.62mm)
供应商设备封装: 8-PDIP
包装: 管件
其它名称: NCP1654BP65GOS
NCP1654
http://onsemi.com
6
-
+
-
+
105% Vref
8% Vref with 4% Vref
Hysteresis
UVP
OVP
Undervoltage
LockOut
Reference
Block
Bias Block
Iref
Vdd
Vref
Vcc
DRV
GND
Output
Buffer
8
7
1
UVLO
BO
+
-
OTA
?8 mA
Vcontrol
Vref
OPL
Vdd
Off
+
-
95% Vref
6
5
Q
R
S
Vdd
+
-
Current Mirror
BO
4
BO
Thermal
Shutdown
+
-
Vref
+
-
Vm
Figure 1. Functional Block Diagram
Ics > 200 mA
Ics
Ics
CS
3
Vdd
Vdd
C1
S1
Division
2
65/133/200 kHz
Oscillator
Vref/10% Vref
Vdd
Iref
+
Im = (Ics*Vbo) / (4*(Vcontrol  Vcontrol(min))
Ics*Vbo > 200 mVA
Q
R
R    S
PWM
Latch
OL
OPL
OCP
Ics
Vbo
Fault
OVP
VboH / VboL
VboH = 1.3 V, VboL = 0.7 V
FB
200 mA
Vout Low Detect
V
in
+
+

IN
R
M
C
M
Output
Voltage
(V
OUT
)
EMI
Filter
AC
Input
I
in
L
I
L
I
L
R
SENSE
C
bulk
R
Z
C
P
C
Z
R
CS
R
boU
R
fbL
R
fbU
C
BO
R
boL
Vcontrol(min)
+
C
filter
Soft Start
OL
Vramp
UVP
BO
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