參數(shù)資料
型號： NCP1212
廠商： ON SEMICONDUCTOR
英文描述： Current Mode PWM Controller for Both Forward and Flyback Converters
中文描述： 電流模式PWM控制器正向和反激式轉(zhuǎn)換器
文件頁數(shù)： 5/22頁
文件大?。?/td> 200K
代理商： NCP1212
NCP1212
http://onsemi.com
5
ELECTRICAL CHARACTERISTICS
(For typical values T
J
= 25
°
C, DMAX = 48%, for min/max values T
J
= 25
°
C to +105
°
C,
V
CC
= 16 V unless otherwise noted.)
Characteristic
Symbol
Min
Typ
Max
Unit
OSCILLATOR SECTION
Oscillation Frequency, T
J
= 25
°
C (DMAX = 48%, C
T
= 1.0 nF)
F
OSC48
81
90
99
kHz
Oscillation Frequency, T
J
= 25
°
C (DMAX = 82%, C
T
= 1.0 nF)
F
OSC82
72
80
88
kHz
Frequency Change against Supply Voltage
(V
CC
= 13 V to 25 V, T
J
= 25
°
C)
F
OSCV
0.02
%
Frequency Change against Temperature
(V
CC
= 16 V, T
J
= 25
°
C to 105
°
C)
F
OSCT
5.0
%
CURRENT SENSE SECTION
Maximum Current Sense Input Threshold
V
CS
0.96
1.0
1.16
V
Propagation Delay (Current Sense to Gate after LEB Blanking)
T
PLH
150
200
ns
Leading Edge Blanking Time
T
LEB
300
ns
SOFTSTART SECTION
SoftStart Charge Current
I
SS
5.0
8.0
11
A
Overload Timing Discharge Current (Note 3)
I
SD
I
SS
15
20
26
A
48% Duty Cycle Selection Input Voltage Threshold
V
D48
2.5
V
82% Duty Cycle Selection Input Voltage Threshold
V
D82
3.0
V
GATE DRIVER SECTION
Gate Drive Sink Capability, V
CC
= 15 V, V
DRV
= 1.0 V
I
OL
100
mA
Gate Drive Source Capability, V
CC
= 15 V, V
DRV
= 5.0 V (Note 4)
Gate Drive Voltage (From 1.0 V to 11 V) Rise Time (C
L
= 1.0 nF, T
J
= 25
°
C)
I
OH
300
mA
T
r
25
50
ns
Gate Drive Voltage (From 11 V to 1.0 V) Fall Time (C
L
= 1.0 nF, T
J
= 25
°
C)
T
f
25
50
ns
IC POWER SUPPLY SECTION
V
CC
Startup Threshold Voltage
VCC
TH
13.5
15
16.5
V
V
CC
Overvoltage Lockout Threshold
VCC
OVLO
22.5
25
27.5
V
V
CC
Undervoltage Lockout Threshold
VCC
UVLO
8.5
10
11.5
V
Power Supply Current, before Startup (V
CC
= 12 V)
I
C1
0.15
0.26
mA
Power Supply Current, Operating
I
C2
3.0
5.0
mA
Power Supply Current, Shutdown (V
CC
= 15 V)
I
C3
3.0
mA
BROWNOUT DETECT SECTION (BOK)
Brownout Input Threshold Voltage
V
BOK
1.14
1.21
1.27
V
Brownout Hysteresis Current
I
BOK
38
45
54
A
MAXIMUM DUTY CYCLE SECTION
Maximum Duty Cycle at SoftStart Pin Voltage between 2.1 V and 2.8 V
(2.1 V
V
DMAX
2.8 V)
DMAX
48
47
48
50
%
Maximum Duty Cycle at SoftStart Pin Voltage Higher than 3.0 V
(V
DMAX
3.0 V)
DMAX
82
79
82
88
%
3. I
SD
is an internal current source not accessible externally.
4. The output voltage is internally clamped by 13.5 V Zener.
相關(guān)PDF資料
PDF描述
NCP1212PG Current Mode PWM Controller for Both Forward and Flyback Converters
NCP1212DR2 Current Mode PWM Controller for Both Forward and Flyback Converters
NCP1212P Current Mode PWM Controller for Both Forward and Flyback Converters
NCP1215(中文) Low Cost Variable OFF Time Switched Mode Power Supply Controller(低成本可變關(guān)閉時間開關(guān)模式電源控制器)
NCP1215ADR2 Low Cost Variable OFF Time Switched Mode Power Supply Controller
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
NCP1212/D 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Current Mode PWM Controller for Both Forward and Flyback Converters
NCP1212_05 制造商:ONSEMI 制造商全稱:ON Semiconductor 功能描述:Current Mode PWM Controller for Both Forward and Flyback Converters
NCP1212DR2 功能描述:電流型 PWM 控制器 High Performance RoHS:否 制造商:Texas Instruments 開關(guān)頻率:27 KHz 上升時間: 下降時間: 工作電源電壓:6 V to 15 V 工作電源電流:1.5 mA 輸出端數(shù)量:1 最大工作溫度:+ 105 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TSSOP-14
NCP1212DR2G 功能描述:電流型 PWM 控制器 High Performance Current Mode PWM RoHS:否 制造商:Texas Instruments 開關(guān)頻率:27 KHz 上升時間: 下降時間: 工作電源電壓:6 V to 15 V 工作電源電流:1.5 mA 輸出端數(shù)量:1 最大工作溫度:+ 105 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TSSOP-14
NCP1212P 功能描述:交流/直流開關(guān)轉(zhuǎn)換器 High Performance RoHS:否 制造商:STMicroelectronics 輸出電壓:800 V 輸入/電源電壓（最大值）:23.5 V 輸入/電源電壓（最小值）:11.5 V 開關(guān)頻率:115 kHz 電源電流:1.6 mA 工作溫度范圍:- 40 C to + 150 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SSO-10 封裝:Reel
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。

采購需求

(若只采購一條型號，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進(jìn)入我的后臺，查看報價

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進(jìn)入我的后臺，查看報價

*型號 *數(shù)量 廠商 批號 封裝
添加更多采購

我的聯(lián)系方式

*
*
*