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Date: 26th Oct 08
White LED driver
for automotive display backlighting applications
ROHM Electronics launched the BD8113EFV-E2, a white LED
driver IC designed to provide constant current drive for
white LED backlights in medium- to large-format automotive
TFT-LCD displays.
This dual-channel driver is capable of up to 150mA constant
current per channel with current-mode buck/boost DC/DC control,
ensuring constant display brightness, even with unstable
battery input voltages over the entire automotive temperature
range.
Other features:
1. The buck/boost configuration frees up the restriction
on the number of LEDs that can be connected in series.
2. Maximum input voltage of 36V (supply voltage range:
5V to 30V)
3. Operating temperature range of (-40°C to 105°C).
4. Built-in undervoltage lockout (UVLO), overvoltage protection
(OVP), thermal shutdown (TSD), over current
protection (OCP) and short-circuit protection (SCP).
5. Inputs provided for brightness modulation via PWM or
VDAC control.
Packaging: HTSSOP-B24 (heat-sink TSSOP) package
For complete details, visit: www.rohmelectronics.com
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