Led Driver Bd9397efv Dvr 40htssop Itytarg

Type DC DC Regulator
Topology Step-Up (Boost)
Internal Switch(s) Yes
Number of Outputs 6
Voltage - Supply (Min) 9V
Voltage - Supply (Max) 35V
Voltage - Output -
Current - Output / Channel 400mA
Frequency 500kHz
Dimming Analog, PWM
Applications Backlight
Operating Temperature -40°C ~ 85°C (TA)
Mounting Type Surface Mount
Package / Case 40-VSSOP (0.213", 5.40mm Width) Exposed Pad
Supplier Device Package 40-HTSSOP-B

●General Description
BD9397EFV is a high efficiency driver for white LEDs
and designed for large LCD panel. This IC is built-in
high current drive and high responsibility type 6ch LED
drivers and 1ch boost DCDC converter. BD9397EFV
has some protect function against fault conditions,
such as the over-voltage protection (OVP), LED OPEN
and SHORT protection, the over current limit
protection of DCDC (OCP). Therefore BD9397EFV is
available for the fail-safe design over a wide range
output voltage.
●Key Specification
 Operating power supply voltage range: 9.0V to 35.0V
 Oscillator frequency: 500kHz (RT=30kΩ)
 Operating Current: 9mA (typ.)
 Operating temperature range: -40°C to +85°C

●Features
■ 6ch Constant LED drivers, available 400mA drive
per 1ch.
■ Constant current accuracy ±1.8% (IC only)
■ Each 6ch external PWM inputs can control independent
dimming .
■ Current analog (linear) dimming by VREF
■ 1ch boost controller with current mode (external FET)
■ Several protection functions
DCDC part : OCP/OVP/UVLO/TSD
LED driver part :OPEN,SHORT detection
■ SHORT detection voltage is set by LSP terminal.
■ Error detection output FAIL terminal inside
(normal=Open, error=Drain)

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