ZXSC400 Datasheet, PDF (1/16 Pages) Zetex Semiconductors – LED DRIVER BOOST CONVERTER

LED DRIVER BOOST CONVERTER
ZXSC400
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 Ϯ1%
• Over 80% typical efficiency
• 4.5␮A 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
PINOUT
SOT23-6
ORDERING INFORMATION
DEVICE
ZXSC400E6TA
REEL TAPE QUANTITY
SIZE WIDTH PER REEL
7“
8mm 3000 units
DEVICE MARKING
• C400
V_CC
GND
STDN
DRIVE
V_FB
SENSE
Top View
ISSUE 1 - JANUARY 2003
1