White LED Driver With PWM Brightness Control for up to 11 LEDs in Series - BD60A00NUX | ROHM Semiconductor - ROHM Co., Ltd.
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White LED Driver With PWM Brightness Control for up to 11 LEDs in Series - BD60A00NUX
This IC is boost DC/DC converter that can drive white LED with constant current. More stabled white LED lighting can be achieved by direct current connection without electric tolerance and High-speed response by current mode. Moreover, separating IC power supply (2.7V to 5.5V) and coil power supply (2.3V to 20V) makes it possible to widen input range, which will be helpful to be applied to various kinds of applications. Over voltage setting can be selected corresponding to the number of LED lightings. BD60A00NUX is for max 11 lightings, BD60A60NUX is for max 6 lightings.
Specifications:
Topology
Boost
Number of Outputs
1
Vin(Min.)[V]
2.7
Vin(Max.)[V]
5.5
Output Current(Max.)[mA]
30.0
Per Channel Drive(Max.)[mA]
30.0
Switch Current Limit(Typ.)[A]
0.75
Vout(Max.)[V]
40.0
Frequency(Max.)[MHz]
0.6
LED Configuration
11
LDO
No
Auto Luminous Control
No
Synchronous
No
Integrated FET
Yes
Dimming
PWM / Analog
Peak Efficiency[%]
94
Iq(Typ.)[mA]
2.5
Ishutdown(Typ.)[µA]
0.1
Operating Temperature (Min.)[°C]
-40
Operating Temperature (Max.)[°C]
85
Features:
・Boost DC/DC converter・Drive 11 LEDs
・Brightness control by outside PWM signal
・Brightness control by DC input
・Soft start function (1ms typ.)
・Over voltage protection 42V typ.
・SBD open protection and output short protection
・Over current protection
・LED terminal over voltage protection
・Under voltage lockout (UVLO)