Datasheet

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© Semiconductor Components Industries, LLC, 2007

July, 2007 - Rev. 2

1 Publication Order Number:

NCP5603/D

NCP5603

High Efficiency Charge Pump

Converter

The NCP5603 is an integrated circuit dedicated to the medium

power White LED applications. The power conversion is achieved by

means of a charge pump structure, using two external ceramic

capacitors, making the system extremely tiny. The device supplies a

constant voltage to the load from a low battery voltage source. It is

particularly suited for the High Efficiency LED used in low cost, low

power applications, with high extended battery life.

Features

•Wide Battery Supply Voltage Range: 2.7 < V

< 5.5 V

•Automatic Operating Mode 1X, 1.5X and 2X Improves Efficiency

•Dimmable Output Current

•Up to 350 mA Output Pulsed Current

•Selectable Output Voltage

•High Efficiency Up To 90%

•Supports 2.5 kV ESD, Human Body Model

•Supports 200 V Machine Model ESD

•Low 40 mA Short Circuit Current

•Pb-Free Package is Available

Applications

•High Power LED

•Back Light Display

•High Power Flash

http://onsemi.com

DFN10, 3x3

MN SUFFIX

CASE 485C

5603 = Specific Device Code

A = Assembly Location

L = Wafer Lot

Y = Year

W = Work Week

G = Pb-Free Package

MARKING

DIAGRAM

5603

ALYWG

C2P

bat

C1P

out

GND

C1N

(Top View)

Fsel

Vsel

C2N

PIN CONNECTIONS

Device Package Shipping

†

ORDERING INFORMATION

NCP5603MNR2 DFN10 3000/ Tape & Reel

NCP5603MNR2G

DFN10

(Pb-Free)

†For information on tape and reel specifications,

including part orientation and tape sizes, please

refer to our Tape and Reel Packaging Specification

Brochure, BRD8011/D.

3000/ Tape & Reel

(Note: Microdot may be in either location)

Summary of content (13 pages)

PAGE 1
NCP5603 High Efficiency Charge Pump Converter The NCP5603 is an integrated circuit dedicated to the medium power White LED applications. The power conversion is achieved by means of a charge pump structure, using two external ceramic capacitors, making the system extremely tiny. The device supplies a constant voltage to the load from a low battery voltage source. It is particularly suited for the High Efficiency LED used in low cost, low power applications, with high extended battery life. http://onsemi.
PAGE 2
NCP5603 Vbat U1 Figure 1. Typical Application http://onsemi.com 2 LWT67C 10 W D4 LWT67C GND R4 NCP5603 10 W 6 EN/PWM 4 Fsel 5 Vsel 8 GND GND 1 mF/16 V 1 D3 Vout C1N GND R3 9 10 LWT67C C2P LWT67C PWM FSEL VSEL C1P R1 C1 1 mF/16 V C4 D2 2 7 10 W C2N C2 1 mF/16 V Vbat 4.
PAGE 3
NCP5603 Vbat Vbat 3 Fsel 4 LOGIC AND ANALOG CONTROL Vbat POWER SWITCHES Thermal Shutdown 10 C2P LEVEL SHIFTER AND MOSFET DRIVE Vbat 7 C2N 9 C1N 2 C1P Vout 1 Vout GND Vbat - Vsel 5 + GND EN 6 GND BANDGAP 8 GND Figure 2. Block Diagram http://onsemi.
PAGE 4
NCP5603 PIN FUNCTION DESCRIPTION Pin Symbol Type Description 1 Vout OUTPUT, PWR This pin supplies the regulated voltage to the external LED. Since high current transients are present in this pin, care must be observed to avoid voltage spikes in the system. Good high frequency layout technique must be observed. 2 C1N POWER One side of the external charge pump capacitor (CFLY) is connected to this pin, associated with C1P, pin 9.
PAGE 5
NCP5603 MAXIMUM RATINGS Symbol Value Unit Power Supply Voltage Rating Vbat 7.0 V Power Supply Current Ibat 800 mA Digital Input Pins Vin -0.5 V < Vbat < Vbat +0.5 V < 6.0 V V Digital Input Pins Iin "5.0 mA Output Voltage Vout 5.5 V ESD Capability (Note 3) Human Body Model Machine Model VESD 2.5 200 kV V PDS RqJA 580 68.
PAGE 6
NCP5603 ELECTRICAL CHARACTERISTICS @ 2.85 V < Vbat < 5.5 V (-40°C to +85°C ambient temperature, unless otherwise noted). Characteristic Pin Symbol Min Typ Max Unit Power Supply 3 Vbat 2.85 - 5.5 V Quiescent Current @ Vbat = 3.7 V, Iout = 0 mA @ Pulsed Clock Fop = 262 kHz @ Pulsed Clock Fop = 650 kHz @ Continuous Clock Fop = 262 kHz @ Continuous Clock Fop = 650 kHz 3 Iqsc - 1.0 2.1 0.8 1.2 - Shutdown Current @ Iout = 0 mA, EN/PWM = L @ 2.85 < Vbat < 4.2 V @ Vbat = 5.5 V 3 - - 2.
PAGE 7
NCP5603 TYPICAL CHARACTERISTICS 100 100 IOUT = 120 mA IOUT = 120 mA 90 EFFICIENCY (%) EFFICIENCY (%) 90 80 70 60 80 70 60 50 2.5 3.0 3.5 4.0 4.5 5.0 50 2.5 5.5 3.0 3.5 4.0 4.5 5.0 Vin (V) Vbat (V) Figure 3. Operating Modes Transitions and Output Power Efficiency @ Vout = 4.5 V/262 kHz Figure 4. Operating Modes Transitions and Output Power Efficiency @ Vout = 4.5 V/650 kHz 100 IOUT = 160 mA -40°C EFFICIENCY (%) 90 25°C 85°C 80 70 60 50 2.5 3.0 3.5 4.0 4.5 5.0 5.
PAGE 8
NCP5603 TYPICAL CHARACTERISTICS Test conditions: Vbat = 3.6 V, Vout = 5 V, Load = 4*LW87S, ILED = 25mA Figure 9. Typical PWM Dimming VCC NCP5603 3 C1 10 mF/10 V GND 2 C2 1 mF/6.3 V EN 6 FSEL 4 VSEL 5 PWR-FLASH GND 9 8 Vbat C2N C1P C1P C1N Vout 7 C2 1 mF/16 V 10 1 C4 10 mF EN/PWM D1 OSRAM: LWW5SG GOLDEN DRAGON Fsel Vsel GND GND R1 1W GND GND Figure 10. Typical High Power Flash Circuit http://onsemi.
PAGE 9
NCP5603 500 R=0W 450 400 R=1W Iout (mA) 350 300 R = 2.2 W 250 200 150 Vout = 4.5 V FSEL = 0 Load = OSRAM / LWW5SG PWR SWITCH = MGSF1N03 100 50 0 2.5 3.0 3.5 4.0 4.5 Vbat (V) Figure 11. NCP5603 Output Current Table 1. Ceramic Preferred Capacitors Manufacturer Type/Series Format Value TDK C3216X5R1C475MT 1206 4.7 mF / 16 V TDK C2012X5R1C225MT 0805 2.2 mF / 16 V TDK C2012X5R1C105MT 0805 1.0 mF / 16 V http://onsemi.
PAGE 10
NCP5603 TP2 1 GND C3 1.0 mF/16 V ISENSE R9 D4 TP1 82 W LW67C 1 GND R8 D3 Vout 82 W LW67C R7 D2 82 W LW67C R6 D1 82 W LW67C 1 GND 8 Vsel Fsel 5 4 6 EN/PWM Vout C1N 9 C1P 2 Vbat 3 U1 NCP5603 C2N C1P 7 10 C2 1 mF/16 V C1 GND S3 Vsel R4 Vsel S2 Fsel 10 k GND VCC 1 mF/16 V VCC GND R5 Fsel C7 100 nF 3 4 S1 R2 3 100 k 6 NL27WZ14 U2A 1 GND R1 NL27WZ14 U2B 10 Q 15 C 12 A 11 B 13 CLR RC D5 PWM Z3 GND GROUND Figure 12.
PAGE 11
NCP5603 Figure 13. Evaluation Board: Silk View (Top View) http://onsemi.
PAGE 12
NCP5603 PACKAGE DIMENSIONS DFN10, 3x3 MN SUFFIX CASE 485C-01 ISSUE A D PIN 1 REFERENCE A B ÇÇÇÇ ÇÇÇÇ ÇÇÇÇ EDGE OF PACKAGE L1 E DETAIL A Bottom View (Optional) 0.15 C 2X NOTES: 1. DIMENSIONING AND TOLERANCING PER ASME Y14.5M, 1994. 2. CONTROLLING DIMENSION: MILLIMETERS. 3. DIMENSION b APPLIES TO PLATED TERMINAL AND IS MEASURED BETWEEN 0.25 AND 0.30 MM FROM TERMINAL. 4. COPLANARITY APPLIES TO THE EXPOSED PAD AS WELL AS THE TERMINALS. 5. TERMINAL b MAY HAVE MOLD COMPOUND MATERIAL ALONG SIDE EDGE.
PAGE 13
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