CM9320-01DE datasheet(3/10 Pages) CALMIRCO

Part #	CM9320-01DE

Description	Asymmetrical High Efficiency Two Channel Boost LED Driver

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Manufacturer	CALMIRCO [California Micro Devices Corp]

Direct Link	http://www.calmicro.com

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3 / 10 page

05/08/06

490 N. McCarthy Blvd., Milpitas, CA 95035-5112

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Tel: 408.263.3214

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Fax: 408.263.7846

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www.cmd.com

3

CM9320

PRELIMINARY

ELECTRICAL OPERATING CHARACTERISTICS (SEE NOTE 1)

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

VIN = 3.6V; CIN = 10μF, COUT = 1μF, L1 = 4.7μH, interleave mode, TA = 25°C (unless otherwise specified)

VIN

Input Voltage Range

2.7

6.0

V

IQ

Quiescent Current

ILED < 0.6mA (each channel), non-

switching

1.2

2.0

mA

VUVLO

Undervoltage Lockout

VIN Rising

2.0

2.2

2.4

V

VOVP

Output Overvoltage Protection

VOUT Rising

19.0

19.5

20.0

V

ISD

Shutdown Current

VEN = 0V

10

15

μA

VEN

Device Enable Threshold

Device ON (by default)

Device OFF

1.0

0.2

V

Channel 1

ILED1

LED Current (Note 1)

VIN = 3.0V to 6.0V, RSET1(kΩ)

4 WLED

235

mA

Number of LEDs (Note 2)

VIN = 2.7V to 6.0V

1

5

VLED1

Voltage on LED1 Pin

Standard load (Note 3)

0.80

V

Channel 2

ILED2

LED Current (Note 1)

VIN = 3.0V to 6.0V, RSET2(kΩ)

4 WLED

230

mA

Number of LEDs (Note 2)

VIN = 2.7V to 6.0V

1

5

VLED2

Voltage on LED2 Pin

Standard load (Note 3)

0.80

V

Boost Circuit (Note 3)

ΔILED / ILED ⋅ ΔVIN Line Regulation

VIN = 3.0V to 6.0V Each Channel

1

%/V

IOUT

Boost Output Current

VIN = 3.0V to 6.0V

80

mA

VOUT

Boost Output Voltage

ILED 1,2 = 2mA to ILED MAX

VIN

20

V

D

Duty Cycle Range

VIN = 2.7V to 6.0V,

ILED 1,2 = 2mA to ILED MAX

595

%

VOUTR

Output Voltage Ripple

Standard Load (Note 3)

50

mVpp

RDSON

MOSFET ON Resistance

ISW = 0.8A, VGS = 15V

300

500

m

Ω

Eff

Efficiency

Standard Load (Note 3)

85

%

ISW

Switch Peak Current

Standard Load (Note 3)

0.5

A

Input Power

ILED 1,2 = 20mA, 4WLED+1W

835

mW

Control

ILED acc

Channel Current Matching

(Note 4)

1% RSET Accuracy, Each Channel

3

%

ILEDR

LED Current Ripple

Standard Load (Note 3)

0.2

mApp

ILEDNL

No-Load Mode (Note 5)

All Channels

0

0.6

mA

fs

Switching Frequency

VIN = 2.7V to 6.0V

0.8

1.0

1.2

MHz

450

R

SET1

---------------

450

R

SET2

---------------

Specifications (cont’d)

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CM9320-01DE Datasheet(PDF) 3 Page - California Micro Devices Corp

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