BD18340FV-ME2 datasheet(5/39 Pages) ROHM

部件名	BD18340FV-ME2

功能描述	Constant Current Controller for Automotive LED Lamps

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制造商	ROHM [Rohm]

网页	http://www.rohm.com

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5 / 39 page

Datasheet

5/35

BD18340FV-M

BD18341FV-M

www.rohm.co.jp

TSZ22111・14・001

TSZ02201-0T1T0C700180-1-2

2016.04.21 Rev.002

Electrical Characteristics1

(Unless otherwise specified

Ta = -40 to +125°C, VIN = 13V, CVREG = 1.0µF, Transistor PNP = 2SAR573D)

Parameter

Symbol

Limit

Unit

Conditions

Min

Typ

Max

[ Circuit Current IVIN ]

Circuit Current

at Stand-by Mode

IVIN1

-

0

10

μA

VEN = 0V

VFB=VIN

Circuit Current

at Normal Mode

IVIN2

-

2.0

5.0

mA

VEN = VIN, VFB=VIN-1.0V

Base current subtracted

Circuit Current

at LED Open Detection

IVIN3

-

2.0

5.0

mA

VEN = VIN, VFB=VIN-1.0V

at LED Open Detection

Circuit Current

at PBUS=Low

IVIN4

-

2.0

5.0

mA

VEN = VIN, VFB=VIN-1.0V

VPBUS = 0V

[ VREG Voltage ]

VREG Terminal Voltage

VREG

4.85

5.00

5.15

V

IVREG = -100μA

Ta = 25 to 125°C

4.75

5.00

5.25

V

IVREG = -100μA

Ta = -40 to 125°C

VREG Terminal

Current Capability

IVREG

-1.0

-

mA

[ DRV ]

FB Terminal Voltage

VFBREG

630

650

670

mV

VFBREG = VIN - VFB

RFB1 = RFB2 = 1.8Ω,

Ta = 25 to 125°C

617

650

683

mV

VFBREG = VIN - VFB

RFB1 = RFB2 = 1.8Ω,

Ta = -40 to 125°C

FB Terminal

Input Current

IFB

7.5

15

30

μA

VFB = VIN

BASE Terminal Sink

Current Capability

IBASE

10

-

mA

VFB = VIN, VBASE = VIN - 1.5V

Ta = 25°C

BASE Terminal

Pull-up Resistor

RBASE

0.5

1.0

1.5

kΩ

VCRT = 0V

VFB = VIN, VBASE = VIN - 1.0V

[ LED Current De-rating Function (DC Dimming Function) ]

DC Dimming Gain

DDG

688

725

762

mV /

V

⊿

VFBREG / ⊿VDCDIM

VDCDIM：0.75V -> 0.35V

BD18340FV-M

FB Terminal Voltage

VDCDIM = 0.75V

VFB_DC1

443

466

489

mV

FB Terminal Voltage

VDCDIM = 0.50V

VFB_DC2

270

284

298

mV

FB Terminal Voltage

VDCDIM = 0.35V

VFB_DC3

161

175

189

mV

BD18341FV-M

FB Terminal Voltage

VDCDIM = 0.75V

VFB_DC1

413

466

522

mV

FB Terminal Voltage

VDCDIM = 0.50V

VFB_DC2

250

284

318

mV

FB Terminal Voltage

VDCDIM = 0.35V

VFB_DC3

155

175

196

mV

[ Over Voltage Mute Function(OVM) ]

Over Voltage Mute

Start Voltage

VOVMS

20.0

22.0

24.0

V

∆VFB = 10.0mV

∆VFB = VFB(@VIN = 13V) –

VFB(@VIN = VOVM)

Over Voltage Mute

Gain

VOVMG

-

-25

-

mV /

V

∆VFB / ∆VIN

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