史上最清晰kx1B电路全貌

xiewg · 发表于 2013-6-3 09:59

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x

索性拆个干净，这下就清楚了

正面

背面

背面的升压芯片是zetex C400

ym_csu · 发表于 2013-6-3 10:06

这个好

muscel · 发表于 2013-6-3 10:30

ZXSC400器件资料

器件摘要：
DESCRIPTION
The ZXSC400 is a voltage mode boost converter in the SOT23-6 package. Its low
feedback voltage allows the current in a chain of LEDs to be set and accurately
monitored with a single resistor giving minimal losses. Its excellent load and line
regulation means that for the full supply range from lithium-ion cells, the LED
current will typically change by less than 1%. Using high efficiency Zetex switching
transistors with ratings of 20V and higher allow many LEDs to be chained in series
for the best LED current matching possible.
FEATURES
• 1.8V to 8V supply range
• Typical output regulation of H110061%
• Over 80% typical efficiency
• 4.5H9262A typical shutdown current
• Series connection for ultimate LED current matching
APPLICATIONS
• White LED backlighting for colour LCD panels
• General LED backlighting
• High performance white LED flashlights
• General LED driving from batteries
DEVICE MARKING
• C400
ZXSC400
ISSUE 1 - JANUARY 2003
1
LED DRIVER BOOST CONVERTER
DEVICE REEL
SIZE
TAPE
WIDTH
QUANTITY
PER REEL
ZXSC400E6TA 7“ 8mm 3000 units
ORDERING INFORMATION
STDN
GND
V
CC
DRIVE
SENSE
V
FB
PINOUT
SOT23-6
Top View

水逝水飞 · 发表于 2013-6-3 11:07

不懂电路，只是图片确实够大够清晰

sakurayy · 发表于 2013-6-3 11:18

拍的不错，辛苦

zfyfeixiang · 发表于 2013-6-3 13:00

看着不错，只是看不懂，内行完全可以照着做一个吧？

皮球 · 发表于 2013-6-3 13:03

把所有元件买齐了再说

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