参数资料
| 型号： | NCP1236BD65R2G |
| 厂商： | ON Semiconductor |
| 文件页数： | 1/34页 |
| 文件大小： | 0K |
| 描述： | IC CTLR CURR MODE 65KHZ 7-SOIC |
| 标准包装： | 2,500 |
| 输出隔离： | 隔离 |
| 频率范围： | 60kHz ~ 70kHz |
| 输入电压： | 10.5 V ~ 28 V |
| 输出电压： | 28V |
| 工作温度： | -40°C ~ 125°C |
| 封装/外壳： | 8-SOIC（0.154"，3.90mm 宽）7 引线 |
| 供应商设备封装： | 7-SOIC |
| 包装： | 带卷 (TR) |
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NCP1236
Fixed Frequency Current
Mode Controller for Flyback
Converters
The NCP1236 is a new fixed ? frequency current ? mode controller
G
1
featuring Dynamic Self ? Supply (DSS). This device is pin ? to ? pin
compatible with the previous NCP12xx families.
The DSS function greatly simplifies the design of the auxiliary
supply and the V CC capacitor by activating the internal startup current
source to supply the controller during transients.
Due to frequency foldback, the controller exhibits excellent
efficiency in light load condition while still achieving very low
standby power consumption. Internal frequency jittering, ramp
compensation, and a versatile latch input make this controller an
excellent candidate for converters where components cost is the key
constraints.
In addition, the controller includes a new high voltage circuitry that
combines a start ? up current source and a brown ? out detector able to
sense the input voltage either from the rectified ac line or the dc
filtered bulk voltage. The high voltage sensing circuitry is used for the
overpower protection purposes as well. Overpower protection,
overload protection, and next protective features increases safety level
of the final application.
Finally, due to a careful design, the precision of critical parameters
http://onsemi.com
MARKING
DIAGRAM
8
36Xff
ALYWX
SOIC ? 7
CASE 751U
36Xff = Specific Device Code
X = A, B, C or D
ff = 65 or 100
A = Assembly Location
L = Wafer Lot
Y = Year
W = Work Week
G = Pb ? Free Package
PIN CONNECTIONS
is well controlled over the entire temperature range ( ? 40 ? C to
+125 ? C).
Latch 1
FB 2
8
HV
Features
? Fixed ? Frequency Current ? Mode Operation with Built ? In Ramp
Compensation
? 65 kHz or 100 kHz Oscillator Frequency
CS 3
GND 4
(Top View)
6
5
V CC
DRV
?
?
Frequency Foldback then Skip Mode for Maximized Performance in
Light Load and Standby Conditions
Timer ? Based Overload Protection with Latched (option A) or
Auto ? Recovery (option B) Operation, Shortened Overload Timer for
Increased Safety (options C and D), (see all options on page 2)
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 33 of this data sheet.
?
?
?
?
?
?
High ? voltage Current Source with Brown ? Out
detection and Dynamic Self ? Supply, Simplifying the
Design of the V CC Capacitor
Frequency Modulation for Softened EMI Signature,
including during Frequency Foldback mode
Adjustable Overpower Compensation
Latch ? off Input for Severe Fault Conditions, Allowing
Direct Connection of an NTC for Overtemperature
Protection (OTP)
V CC Operation up to 28 V, with Overvoltage Detection
$ 500 mA Peak Source / Sink Current Drive Capability
? Internal Thermal Shutdown
? Pin ? to ? Pin Compatible with the Existing NCP12xx
Series
? These Devices are Pb ? Free, Halogen Free/BFR Free
and are RoHS Compliant
Typical Applications
? AC ? DC Adapters for Notebooks, LCD, and Printers
? Offline Battery Chargers
? Consumer Electronic Power Supplies
? Auxiliary/Housekeeping Power Supplies
? 4.0 ms Soft ? Start
? Semiconductor Components Industries, LLC, 2013
April, 2013 ? Rev. 3
1
Publication Order Number:
NCP1236/D
相关PDF资料 |
PDF描述 |
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| NCP1237AD65R2G | IC REG CTRLR FLYBACK PWM 7SOIC |
| NCP1238BD65R2G | IC REG CTRLR FLYBACK PWM 7SOIC |
| NCP1246BD100R2G | IC CTLR CURR MODE 65KHZ 8SOIC |
| NCP1252ADR2G | IC REG CTRLR FLYBK ISO PWM 8SOIC |
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相关代理商/技术参数 |
参数描述 |
|---|---|
| NCP1236CD100R2G | 制造商:ONSEMI 制造商全称:ON Semiconductor 功能描述:Fixed Frequency Current Mode Controller for Flyback Converters |
| NCP1236CD65R2G | 制造商:ONSEMI 制造商全称:ON Semiconductor 功能描述:Fixed Frequency Current Mode Controller for Flyback Converters |
| NCP1236DD100R2G | 制造商:ONSEMI 制造商全称:ON Semiconductor 功能描述:Fixed Frequency Current Mode Controller for Flyback Converters |
| NCP1236DD65R2G | 功能描述:电流型 PWM 控制器 RoHS:否 制造商:Texas Instruments 开关频率:27 KHz 上升时间: 下降时间: 工作电源电压:6 V to 15 V 工作电源电流:1.5 mA 输出端数量:1 最大工作温度:+ 105 C 安装风格:SMD/SMT 封装 / 箱体:TSSOP-14 |
| NCP1237 | 制造商:ONSEMI 制造商全称:ON Semiconductor 功能描述:Fixed Frequency Current Mode Controller for Flyback Converters |
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