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參數(shù)資料
| 型號： | HV9931 |
| 廠商： | Supertex, Inc. |
| 元件分類： | 基準電壓源/電流源 |
| 英文描述： | UNITY POWER FACTOR LED LAMP DRIVER |
| 中文描述： | 單位功率因數(shù)LED燈驅(qū)動器 |
| 文件頁數(shù)： | 3/7頁 |
| 文件大?。?/td> | 516K |
| 代理商： | HV9931 |
3
NR081505
HV9931
Symbol
Oscillator
Parameter
Min
Typ
Max
Units
Conditions
F
OSC
F
T
Comparators
Initial Accuracy
80
100
120
kHz
RT = 230K
Temperature Stability
3
%
Tj = -40°C to +125°C
V
OFFSET1
V
OFFSET2
Comparator Input offset voltage
*
-12
12
mV
V
OFFSET1
V
OFFSET2
Input offset voltage temperature drift
10
μV/°C
Tj = -40°C to +125°C
V
IN
–
This pin is the input of a high voltage regulator.
V
–
This is a power supply pin for all internal circuits. It must be bypassed with a low
ESR capacitor to GND.
GATE –
This pin is the output gate driver for an external N-channel power MOSFET.
GND –
Ground return for all the internal circuitry. This pin must be electrically connected
to the ground of the power train.
RT
– Oscillator control. A resistor connected between this pin and GND sets the PWM
frequency. A resistor connected between this pin and GATE sets the PWM off-time.
PWMD –
When this pin is pulled to GND, switching of the HV9931 is disabled. When the
PWMD pin is released, or external TTL high level is applied to it, switching will resume.
This feature is provided for applications that require PWM dimming of the LED lamp.
CS1 and CS2 –
These pins are used to sense the input and output currents of the
converter. They are the inverting inputs of the internal comparators.
Pin Description
V
IN
GATE
CS1
RT
GND
V
DD
PWMD
CS2
1
2
3
4
8
7
6
5
HV9931
SOIC-8, DIP-8
Pinout
Functional Block Diagram
REGULATOR
7.5V
V
IN
CS
1
CS2
PWMD
GATE
V
DD
RT
R Q
S
OSC
AGND
HV9931
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| HV9931_07 | 制造商:SUPERTEX 制造商全稱:SUPERTEX 功能描述:HV9931 Unity Power Factor LED Lamp Driver |
| HV9931DB1 | 功能描述:電源管理IC開發(fā)工具 LED DRIVER DEMOBOARD RoHS:否 制造商:Maxim Integrated 產(chǎn)品:Evaluation Kits 類型:Battery Management 工具用于評估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V |
| HV9931DB2 | 功能描述:LED 照明開發(fā)工具 LED DRIVER DEMOBOARD RoHS:否 制造商:Fairchild Semiconductor 產(chǎn)品:Evaluation Kits 用于:FL7732 核心: 電源電壓:120V 系列: 封裝: |
| HV9931DB4 | 制造商:Supertex Inc 功能描述: |
| HV9931DB5 | 功能描述:電源管理IC開發(fā)工具 DOUBLE-BUCK LED DEMOBOARD RoHS:否 制造商:Maxim Integrated 產(chǎn)品:Evaluation Kits 類型:Battery Management 工具用于評估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V |
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