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BD1754HFN
Datasheet
TSZ02201-0G3G0C200060-1-2
9.NOV.2012 Rev.001
www.rohm.com
© 2012 ROHM Co., Ltd. All rights reserved.
TSZ22111･15･001
●Absolute Maximum Ratings (Ta = 25°C)
Parameter Symbol Ratings Unit
Terminal voltage VMAX 7 V
Power dissipation Pd 630
(*1)
mW
Operating temperature range Topr -30 to +85 °C
Storage temperature range Tstg -55 to +150 °C
(*1) This value is the measurement value when the driver is mounted on a glass epoxy board (70 mm x 70 mm x 1.6 mm).
When using the driver at Ta of 25°C or higher, the power is dissipated by approx. 5.04 mW/°C.
●Recommended Operating Ratings (Ta = -30°C to +85°C)
Parameter Symbol
Limits
Unit Condition
Min. Typ. Max.
Operating power supply voltage VIN 2.7 3.6 5.5 V
Driver pin voltage range VDRV 0.2 - VIN-1.4 V When Current driver power on.
●Electrical Characteristics (Unless otherwise specified, Ta = 25°C and VIN = 3.6 V)
Parameter Symbol
Limits
Unit Condition
Min. Typ. Max.
Quiescent current Iq - 0.1 1 μA EN=0V
Circuit current IDD - 1.2 2.0 mA Except LED current
[Current driver]
Maximum current ILED-max 29.76 32.0 34.24 mA R
ISET
= 120kΩ
LED Current accuracy ILED-diff - - 7.0 %
When current 16.5 mA setting
R
ISET
= 120kΩ
LED Current matching ILED-match - 0.5 3.0
(
*
1)
%
When current 16.5 mA setting
R
ISET
= 120kΩ
[Logic controller]
Low threshold voltage VIL - - 0.4 V
High threshold voltage VIH 1.4 - - V
‘H’ level input current IIH - 0 2 μA EN=VIN
‘L’ level input current IIL -2 0 - μA EN=0V
EN ‘H’ time THI 0.05 - 100 μs
EN ‘L’ time TLO 0.3 - 100 μs
EN Off time-out TOFF 1 - - ms
VIN supply -> EN active time TVINON 1 - - ms
EN stand-by -> VIN Off time TVINOFF 0 - - ms
(*1) The following formula is used for calculation:
ILED-match = {(Imax - Imin) / (Imax + Imin)} x 100
Imax = Current value in a channel with the maximum current value among all channels
Imin = Current value in a channel with the minimum current value among all channels
