ROHM BD1603NUV Technical data

t

D

VOUT

+

V

Datashee

1-Channel 190mA Charge Pump White LED Driver with 1-wire Serial Interface

BD1603NUV

●General Description The high-power (large current output) type LED driver is a white LED driver best suited for applications that require the large current. It is equipped with output voltage and oscillation frequency switch functions to flexibly cope with a wide variety of applications. Because output voltage is fixed at 4.5V or 5.0V, it is also applicable t o applications except the LED driver.

●Features

 Current consumption less than or equal to 2µA at

shut-down

 Low ripple output owing to a complementary

charge pump circuit

 Over current protection when VOUT short to GND.  Soft start function  Mounting various protection functions such as

current overload limiter and thermal shut-down circuit

●Lineup

Parameter BD1603NUV

Number of LEDs Boost magnification ×2 fixed (4.5V or 5.0VOUTput)

Interface Control via external pins Individual LED lighting Not available

(Up to maximum load current)

Up to 10 LEDs

●Key Specifications

 Operating power supply voltage range: 2.7V to 5.5V  Oscillator frequency: 238 or 642kHz(Typ.)  Operating temperature range: -30℃ to +85℃  Output Voltage: 190mA 4.5V(Typ.)

150mA 5.0V(Typ.)

●Package W(Typ.) x D(Typ.) x H(Max.) VSON010V3030 3.00mm x 3.00mm x 1.00mm

●Applications

This driver is applicable for various fields such as mobile phones, portable game machines and appliances. 5V supply for HDMI 5V supply for USB OTG

SON010V3030

3.00mm x 3.00mm x 1.00mm

●Ty pical A pplication Circuit

2.7V to 5.5V Cin

1µF

3

VIN

BD1603NUV

EN

6

CF1-

CF2+

CF2-

CF1

1

Vo = 4.5V or 5.0V

2

CF1 1µF(10V)

9

10

7

C

1µF(10V)

CF2 1µF(10V)

OUT

4

FSEL

VSEL

5

○Product structure：Silicon monolithic integrated circuit ○This product is not designed protection against radioactive rays www.rohm.com

GND

8

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TSZ02201-0G3G0C200040-1-2

Up to 10 LE

・・・

17.Dec.2012 Rev.001

BD1603NUV

●Absolute Maximum Ratings (Ta=25ºC) Parameter Symbol Ratings Unit Condition

Terminal input voltage VINMAX 7 V Terminal output voltage VOMAX 7 V Operating temperature range Topr -30 to +85 ºC Storage temperature range Tstg -55 to +150 ºC Allowable loss Pd 700(*1) mW

(*1)When a glass epoxy substrate (70mm × 70mm × 1.6mm) has been mounted, this loss will decrease 5.6mW/ºC if Ta is higher than or equal to 25ºC.

●Recommended Operating Rating (Ta=-30ºC to +85ºC) Parameter Symbol Ratings Unit Condition

Operating supply voltage Vin 2.7 to 5.5 V

●Electrical Characteristics  Unless otherwise specified, Ta = 25ºC and Vin = 3.6V. Parameter Symbol

Min. Typ. Max.

Limits

Unit Condition

Datasheet

- 1.4 2.0 mA Freq=238kHz, I

I

Q1

Circuit current

IQ2 - 3.0 4.2 mA Freq=642kHz, I

IQ3 - - 2 μA EN=0V

4.80 5.0 5.20 V VSEL=VIN, I

V

OUT1

Output voltage

V

4.275 4.5 4.725 V VSEL=0V, I

OUT2

- - 150 mA

I

OUT1

I

- - 190 mA

OUT2

Output current

I

- - 60 mA

OUT3

I

- - 120 mA

OUT4

202 238 273 kHz EN=VIN, FSEL=0V

f

OSC1

Oscillation frequency

f

513 642 770 kHz EN=VIN, FSEL=VIN

OSC2

Output short-circuit current ISC - - 600 mA V

=0mA,

OUT

=0mA

OUT

=150mA

OUT

=190mA

OUT

VSEL=V

3.2V≦ V

IN

VSEL=0V

3.2V≦ VIN VSEL=V

2.85V≦ V

IN

VSEL=0V

2.85V≦ V

OUT

IN

=0V

*1)

=3.3V, V

V

Efficiency

n

- 75.0 - %

1

n2 - 74.5 - %

I V

I

IN

OUT

IN

OUT

=60mA, Freq=238kHz

=3.3V, V

=60mA, Freq=642kHz

OUT

[ Logic controller ] High threshold voltage VIH 1.3 - - V EN, VSEL and FSEL pins

Low threshold voltage VIL - - 0.4 V EN, VSEL and FSEL pins

‘H’ level input current IIH - - 10 μA EN, VSEL and FSEL pins

‘L’ level input current IIL - - 10 μA EN, VSEL and FSEL pins

*1) Please design a VIN condition and a load current not to exceed Pd of the LSI.

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=5.0V

BD1603NUV

●Pin Descriptions

Pin number Pin name In/Out Function

1 VOUT Out Output pin 2 CF1+ In/Out Connection pin for flying capacitor 1 3 VIN In Input voltage 4 FSEL In Frequency switch pin(L : 238kHz, H : 642kHz) 5 VSEL In Output voltage switch pin(L : 4.5V, H : 5.0V) 6 EN In ON/OFF control pin 7 CF2- In/Out Connection pin for flying capacitor 2 8 GND - Ground pin 9 CF1- In/Out Connection pin for flying capacitor 1

10 CF2+ In/Out Connection pin for flying capacitor 2

-

●Block Diagram

Thermal

PAD

-

Heat radiation PAD of back side Connect to GND

Figure 1. Block Diagram

Datasheet

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BD1603NUV

●Typical Performance Curves

Figure 2. Quiescent Current1

Datasheet

Figure 3. Quiescent Current2

Figure 4. Quiescent Current3

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Figure 5. Line Regulation (VSEL = 0V)

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BD1603NUV

●Typical Performance Curves - continued

Figure 6. Line Regulation (VSEL = VIN)

Datasheet

Figure 7. Load Regulation (VSEL = 0V)

Figure 8. Load Regulation (VSEL = VIN)

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Figure 9. Efficiency vs. Input Voltage

(VSEL = 0V)

TSZ02201-0G3G0C200040-1-2

17.Dec.2012 Rev.001