BD18345EFV-M
BD18345EFV-M is Constant Current Controller manufactured by ROHM.
Description
BD18345EFV-M is 70 V-withstanding constant current controller for automotive LED lamps. It is able to drive at maximum 10 rows of PNP transistors. It can also contribute to reduction in the consumption power of the set as it has the built-in standby function. The IC provides high reliability because it has two Current de-rating function, LED open detection, short circuit protection, over voltage mute function and LED failure input/output function.
Features
- AEC-Q100 Qualified(Note 1)
- PWM Dimming Function
- PWM Signal Output
- LED Current DC Dimming
- Thermal De-rating Function
- LED Open Detection
- Short Circuit Protection (SCP)
- Over Voltage Mute Function (OVM)
- Disable LED Open Detection Function at Reduced-Voltage
- LED Failure Input/Output Functions (PBUS)
(Note 1) Grade1
Key Specifications
- Input Voltage Range:
- FB Pin Voltage Accuracy:
4.5 V to 19.0 V 650 m V ±3 %
@Ta=25 °C to 125 °C
- Stand-by Current:
- LED Current De-rating Accuracy:
0 µA (Typ)
DCDIM Pin : ±3 % @VDCDIM=0.75 V to 2.00 V
THD Pin : ±6 % @VTHD=0.50 V to 0.75 V
- Operating Temperature Range: -40 °C to +125 °C
Package HTSSOP-B20
W (Typ) x D (Typ) x H (Max) 6.50 mm x 6.40 mm x 1.00 mm
HTSSOP-B20
Applications
- Automotive LED Exterior Lamp
(Rear Lamp, Turn Lamp, DRL/Position Lamp, Fog
Lamp etc.)
- Automotive LED Interior Lamp
(Air Conditioner Lamp, Interior Lamp, Cluster Light etc.)
Typical Application Circuit
PWM_in
D1 ZD1
D2
CVIN1 CVIN2
DC_in...
