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参数资料
| 型号： | DS3991Z+T&R/PP |
| 厂商： | Maxim Integrated |
| 文件页数： | 1/16页 |
| 文件大小： | 0K |
| 描述： | IC CTRLR CCFL PUSH-PULL 16-SOIC |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 类型： | CCFL 控制器 |
| 频率： | 40 ~ 80 kHz |
| 电流 - 电源： | 5mA |
| 电源电压： | 4.5 V ~ 5.5 V |
| 工作温度： | -40°C ~ 85°C |
| 封装/外壳： | 16-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 16-SOIC |
| 包装： | 带卷 (TR) |
| 其它名称： | 90-3991V+001 |
Rev 1; 2/08
Low-Cost CCFL Controller
General Description
The DS3991 is a controller for cold-cathode fluorescent
lamps (CCFLs) that are used to backlight liquid-crystal
displays (LCDs). The DS3991 is available for both
push-pull and half-bridge drive topologies.
The DS3991 converts a DC voltage (5V to 24V) to the
high-voltage (300V RMS to 1400V RMS ) AC waveform that
is required to power the CCFLs. The push-pull and half-
bridge drive schemes use a minimal number of external
components, which reduces component and assembly
cost and makes the printed circuit board (PCB) design
easy to implement. Both drive schemes provide an effi-
cient DC to AC conversion and produce near-sinu-
soidal waveforms.
Features
? CCFL Controller for Backlighting LCD Panels
? Minimal External Components Required
? Lamp Fault Monitoring for Lamp-Open, Lamp-
Overcurrent, Failure-to-Strike, and Overvoltage
Conditions
? Accurate (±5%) On-Board Oscillator for Lamp
Frequency (40kHz to 80kHz)
? Accurate (±5%) On-Board Oscillator for DPWM
Burst-Dimming Frequency (80Hz to 300Hz)
? Device Supply Undervoltage Lockout
? Inverter Supply Undervoltage and Overvoltage
Lockouts
? Soft-Start on Burst-Dimming Minimizes Audible
LCD PC Monitors
LCD TVs
Applications
Transformer Noise
? Strike Frequency Boost
? 100% to < 10% Dimming Range
? Low Cost
? Single-Supply Operation Range: 4.5V to 5.5V
? Temperature Range: -40°C to +85°C
? 16-Pin SO Package (150 mils)
Ordering Information
PART
DS3991Z+PP
DS3991Z+T&R/PP
DS3991Z+HB
DS3991Z+T&R/HB
CONFIGURATION
Push-Pull
Push-Pull
Half-Bridge
Half-Bridge
TEMP RANGE
-40 ° C to +85 ° C
-40 ° C to +85 ° C
-40 ° C to +85 ° C
-40 ° C to +85 ° C
DIMMING FREQUENCY RANGE (Hz)
80 to 300
80 to 300
80 to 300
80 to 300
PIN-PACKAGE
16 SO (150 mils)
16 SO (150 mils)
16 SO (150 mils)
16 SO (150 mils)
+Denotes a lead-free package.
T&R = Tape and reel.
TOP VIEW
Pin Configuration
SLOPE 1
VCC 2
16 SVML
15 SVMH
Typical Operating Circuits appear at end of data sheet.
VCC 3
VCC 4
14 VCC
13 GND
LOSC 5
POSC/PWM 6
BRIGHT 7
PWM_EN 8
DS3991
SO
12 OVD
11 LCM
10 GB
9 GA
________________________________________________________________ Maxim Integrated Products
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| DS3992 | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Two-Channel, Push-Pull CCFL Controller |
| DS3992Z+ | 制造商:Maxim Integrated Products 功能描述:- Rail/Tube |
| DS3992Z-09N | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Two-Channel, Push-Pull CCFL Controller |
| DS3992Z-09N+ | 功能描述:显示驱动器和控制器 2Ch Push-Pull CCFL Controller RoHS:否 制造商:Panasonic Electronic Components 工作电源电压:2.7 V to 5.5 V 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:QFN-44 封装:Reel |
| DS3992Z-09N+R | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Two-Channel, Push-Pull CCFL Controller |
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