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DS3992Z-18P+T

更新时间： 2024-11-22 11:50:03
品牌 Logo 应用领域
美信 - MAXIM 控制器
页数 文件大小 规格书
13页 226K
描述
Two-Channel, Push-Pull CCFL Controller

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DS3992Z-18P+T 数据手册

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Rev 0; 9/06  
Two-Channel, Push-Pull CCFL Controller  
DS392  
General Description  
Features  
ꢀ Two-Channel CCFL Controller for Backlighting  
The DS3992 is a low-cost, two-channel controller for  
cold-cathode fluorescent lamps (CCFLs) that are used  
to backlight liquid crystal displays (LCDs). The DS3992  
can drive multiple CCFLs per channel, making it ideal  
for 4- and 6-lamp LCD PC monitor and TV applications.  
LCD Panels for PC Monitors and LCD-TVs  
ꢀ Minimal BOM Provides Low-Cost Inverter Solution  
ꢀ Per-Channel Lamp Fault Monitoring for Lamp-  
Open, Lamp Overcurrent, Failure to Strike, and  
Overvoltage Conditions  
The DS3992 uses a push-pull drive scheme to convert a  
ꢀ Accurate (±±10% On-Board Oscillator for Lamp  
DC voltage (5V to 24V) to the high voltage (300V  
to  
RMS  
Frequency (41kHz to 81kHz%  
1400V  
) AC waveform that is required to power the  
RMS  
CCFLs. The push-pull drive scheme uses a minimal  
number of external components, which reduces compo-  
nent and assembly cost and makes the printed circuit  
board (PC board) design easy to implement. The push-  
pull drive scheme also provides an efficient DC-to-AC  
conversion and produces near-sinusoidal waveforms.  
ꢀ Accurate (±±10% On-Board Oscillator for DPꢀM  
Burst-Dimming Frequency (91Hz to 221Hz or  
±81Hz to 441Hz%  
ꢀ Device Supply Undervoltage Lockout  
ꢀ Inverter Supply Undervoltage Lockout  
ꢀ Burst-Dimming Soft-Start Minimizes Audible  
Transformer Noise  
ꢀ Strike Frequency Boost  
Applications  
ꢀ ±110 to < ±10 Dimming Range  
ꢀ 4.5V to 5.5V Single-Supply Operation  
ꢀ -41°C to +85°C Temperature Range  
ꢀ ±6-Pin SO Package (±51 mils%  
LCD PC Monitors  
LCD-TVs  
Ordering Information  
DIMMING  
FREQUENCY RANGE  
PART  
TEMP RANGE  
BRIGHT POLARITY  
PIN-PACKAGE  
DS3992Z-09P+  
-40°C to +85°C  
-40°C to +85°C  
-40°C to +85°C  
-40°C to +85°C  
-40°C to +85°C  
-40°C to +85°C  
-40°C to +85°C  
-40°C to +85°C  
90Hz to 220Hz  
90Hz to 220Hz  
180Hz to 440Hz  
180Hz to 440Hz  
90Hz to 220Hz  
90Hz to 220Hz  
180Hz to 440Hz  
180Hz to 440Hz  
Positive  
Negative  
Positive  
Negative  
Positive  
Negative  
Positive  
Negative  
16 SO-16 (150 mils)  
16 SO-16 (150 mils)  
16 SO-16 (150 mils)  
16 SO-16 (150 mils)  
16 SO-16 (150 mils)  
16 SO-16 (150 mils)  
16 SO-16 (150 mils)  
16 SO-16 (150 mils)  
DS3992Z-09N+  
DS3992Z-18P+  
DS3992Z-18N+  
DS3992Z-09P+T&R  
DS3992Z-09N+T&R  
DS3992Z-18P+T&R  
DS3992Z-18N+T&R  
+Denotes lead-free package.  
T&R denotes tape-and-reel package.  
Pin Configuration  
TOP VIEW  
1
2
3
4
5
6
7
8
16  
15  
V
V
LOSC  
POSC  
BRIGHT  
SVM  
CC  
CC  
14 OVD2  
13  
LCM2  
12 GB2  
Typical Operating Circuits appear at end of data sheet.  
DS3992  
GA1  
GA2  
GB1  
11  
10  
9
V
CC  
LCM1  
OVD1  
GND  
SO-±51  
______________________________________________ Maxim Integrated Products  
±
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at  
±-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.  
1234567...13

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