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MAXIM LED Drivers Solution

Summary

May 2007

Maxim Confidential

Brea Fan

MAXIM LED Drivers Solution

Summary

1: SPM HB LED Drivers

2: Notebook LED BL Driver for LCD/TV Panel

3: SSIP GPIO & LED Drivers

4: SSIP LED Drivers For LED Tile

5: Infocom WLED Drivers

MAXIM SPM HB LED driver solution page /Market focus

Find the latest information for HB LED drivers at the following URL: http://www.maxim-ic.com/led

Maxim’s HB LED Driver ICs

APPLICATION DEVICE Vin

(V)

Iout

(A)

Vout

(V) up to

Power Dimming Enable Magnetic Switching

Frequency

Rectified

85-265 VAC

Switchmode

LED Driver

Controllers

MAX5021

MAX5022

11-28

MAX16801

10.8-24

MAX5068

MAX5069

10.8-24

10.8-24

110 150W

20W

PWM/Linear

60W

PWM/Linear

Yes

500W

Transformer/

Inductor

Transformer/

Inductor

Transformer/

Inductor

Transformer

262KHz

262KHz

MAX5070 16-28 -

PWM/linear

Transformer

Up to

1.25MHz

Up to

2.5MHz

Up to

1.00MHz

125KHz

DC Input

Switchmode

LED Driver

Controllers

MAX5033

MAX5035

7.5-76

7.5-76

MAX5094C 8-28V

MAX16802 10.8-24

MAX16818

MAX5069

MAX5088

MAX5089

7-28

10.8-24

4.5-23

4.5-23

0.5 13.2

1.0 13.2

2.0

2.0

28

28

-

-

60W

PWM/Linear

60W

PWM/Linear

Yes

150W

PWM/Linear

Yes

500W

-

-

PWM/Linear

PWM/Linear

PWM/Linear

PWM/Linear

Yes

Yes

Yes

Yes

Dual output

MAX5073

Linear LED

Driver

DC Input

Multichannel

Switch Mode

& Linear

4.5-23 1&2 28 -

PWM/Linear

Yes

MAX16800 6.5-40 0.35 39 10W

MAX16803 6.5-40 0.35 39 10W

PWM

PWM

Yes

Yes

MAX16804 5.5-40 0.35 39 10W

PWM/Linear

Yes

MAX16805 5.5-40 0.35 39 10W

PWM/Linear

Yes

MAX16806 5.5-40 0.35 39 10W

PWM/Linear

Yes

MAX16807/

MAX16808

8-28V

0.44

36 16W

PWM

MAX16809/

MAX16810

8-28V

0.88

36 32W

PWM

Inductor

Inductor

Transformer/

Inductor

Transformer/

Inductor

Inductor

Transformer

Inductor

Inductor

Inductors

N/A

N/A

N/A

N/A

N/A

Inductor

Inductor

125KHz

Up to

1.00MHz

262KHz

Up to

1.5MHz

Up to

1.25MHz

Up to

2.2MHz

Up to

2.2MHz

Up to

2.2MHz

N/A

N/A

N/A

N/A

N/A

Up to

1.00MHz

Up to

1.00MHz

Power FET

External

External

External

External

External

Internal

Internal

External

External

External

External

Internal

Internal

Internal

Internal

Internal

Internal

Internal

Internal

External/

Internal

External/

Internal

Maxim’s HB LED Drivers by Application

Market End Application

RGB backlight LCD

TV/ Monitors

DEVICE Vin

(V)

MAX5068

MAX16807-

MAX16810

10.8+

8

I out

Up to

0.88A

V out

Up to

110V

Up to

36V

En/

Dim

Yes

Yes

Features

Up to 1.25MHz

High Voltage buck, Pout up to 150W

Multichannel LCD LED Backlight Drivers

Display

Ultra Small Projector

Rear Projection TV

Daytime running

lights (DRLs)

Fog light

Front Turn lamp

Headlamp

MAX5073

MAX5088

MAX16818

MAX5068 &

MAX5064

MAX16818

MAX5088

4.5-23 1 & 2A 28V

4.5-23 2.0A

6-28V 20A

10.8+

6-28V

4.5-23

20A

2.0A

Up to

28V

Up to

110V

Up to

28V

Yes

Yes

Yes

Yes

Yes

Yes

Two independent output Boost or Step Down

2.2MHz Switching, use of miniature inductor to save space

IOUT1 and IOUT2 of 2A and 1A

Buck or Boost Regulator

Up to 2.2MHz switching min. space required

Buck, boost or buck-boost controller, up to

1.5MHz

Up to 1.25MHz

High Voltage buck, Pout up to 150W

Buck, boost or buck-boost controller, up to

1.5MHz

Buck or Boost Regulator

Up to 2.2MHz switching min. space required

Sync to external clock to avoid RF interference

Avoids AM bands

Buck, boost or buck-boost controller, up to

1.5MHz

MAX16818 6-28V 20A Yes

Automotive

Tail, Stop & Turn lamp

Back up lamp

Map light

Dome light

Vanity lamp

Reading lamp

Turn signal light

Heads up Display

Infotainment LCD backlight

Headboard lights

Warning lights

Courtesy light

Map light

Dome light

Vanity light

Reading light

Warning lights

Tail, Stop & Turn lamp

Back up lamp

Courtesy light

MAX5033

MAX5035

MAX5080

MAX5082

MAX5088

MAX16800,

MAX16803

MAX16804

MAX16805,

MAX16806

7.5-76

4.5-40

4.5-40

0.5A

1.0A

1.0A

1.5A

4.5-23 2.0A

6.5-65 350mA

5.5-65 350mA

6.5-40 350mA

Up to

13.2

V

Up to

28V

Up to

28V

Up to

28V

Up to

39V

Yes

Yes

Yes

Yes

Yes

Buck with min external parts

Wide input voltage range

Load dump protection

Internally compensated

Buck with min. external part

Load dump protection up to 40V

250KHz switching

Can operate during cold crank

Buck Regulator

Operates over -40 to +125 C

Buck or Boost Regulator

Sync to external clock to avoid RF interference

Up to 2.2MHz switching min. space required

Avoids AM bands

Linear drivers

Wide input voltage range/load dump protection

Thermal and short circuit protection

Low no-load supply current

Operates over -40 to +125 C

EEPROM and I2C programmable current reference (binning), LED current foldback

(MAX16805, MAX16806) and thermal folback

(MAX16806)

Momentary switch interface (MAX16806)

Overview of Linear High Brightness LED

Drivers Family

Part

Number

MAX16800

9

MAX16803

9

MAX16804

9

MAX16805

9

MAX16806

9

EN

Pin

3.5% LED

Current

Accuracy

9

9

Load

Dump

Protected

(45V)

9

5V

Output

9

9 9

DIM

Input

DIM with

DC

Signal

Program.

Voltage

Foldback

- - -

Program.

LED Current

Reference

(Bin).

-

Program.

DIM

Ramp

Peak

Program.

-

Thermal

Foldback

-

Momentary

Switch

Interface

-

9

- - - - - -

9

9

9

9

9

9

9

9

9

9

9

9

9

9

9

9

9

9

9

9

9

- -

9 9

MAX16803 High-Brightness LED Driver with

PWM Dimming Input

Evaluation Kit

Available

Features:

Full PWM dimming range, with 1% minimum duty cycle

Turn-on delay time 10usec, equal rise and fall time, 20usec typical

Dedicated DIM pin: uninterrupted 5V supply operation during dimming

Controlled LED current transients Improve EMI performance

Short-circuit protection

Optimized PWM Dimming Transients:

Overview of Switch-mode/Linear LCD LED

Backlight Drivers

Part # Description Vin Range Vout Range

Iout (max per channel)

Freq Fault Detection Package Dimming

Number of output LED channels

Power MOSFET

(switching/linear)

Automotive LCD Display LED Backlight Drivers

MAX5094C+

MAX16803

MAX16807

MAX16808

MAX16809

MAX16810

DC Input,

Switchmode LED

Drivers with

Linear

Postregulators

DC Input,

Switchmode LED

Drivers with

Linear

Postregulators

DC Input,

Switchmode LED

Drivers with

Linear

Postregulators

DC Input,

Switchmode LED

Drivers with

Linear

Postregulators

DC Input,

Switchmode LED

Drivers with

Linear

Postregulators

SP08

(Samples available: Spring

2007)

DC Input,

Switchmode LED

Controllers with

Linear

Postregulators and I2C Interface

8V to 26.5V

8V to 26.5V

8V to 26.5V

8V to 26.5V

8V to 26.5V

5V to 28V (load dump protected up to 40V)

Up to 40V

Up to 36V

Up to 36V

Up to 36V

Up to 36V

Determined by external components ratings

350mA

55mA

55mA

55mA

55mA

Determined by external components ratings

20KHz - 1MHz

20KHz - 1MHz

20KHz - 1MHz

20KHz - 1MHz

20KHz - 1MHz

20KHz - 1MHz

-

-

Open LED

-

Open LED

8-uMAX+16-

TQFN 5x5

Independent

PWM control of each channel

User selected

28pin TSSOP with channels together

Exposed Pad

PWM, All or SPI

8 (parallelable) External/Internal

28pin TSSOP with channels together

Exposed Pad

PWM, All or SPI

8 (parallelable) External/Internal

38pin TQFN 5x7

PWM, All channels together or SPI

16 (parallelable) External/Internal

38pin TQFN 5x7

PWM, All channels together or SPI

16 (parallelable) External/Internal

Open and short

LED

32-pin QFN

(5mm x 5mm)

Independent

PWM control of each channel

4

External/Internal

External/External

MAX16809/MAX16810 Controllers with

16-Channel, Constant-Current LED Driver

Features:

Samples

Available

Now

Drives ~224 Red LEDs or ~144 White, Blue or Green LEDs

Configurable for Boost or Buck-Boost (SEPIC)

8V to 26.5V Input Voltage, >26.5V with simple Zener clamp

Adjustable Output Voltage up to 36V

Switch-mode converter Frequency up to 1MHz

16 Channels, each up to 55mA Constant-Current sink

Output Channels parallelable for Higher Current

Output Currents Programmed by Single Resistor

3% Current Matching Among Outputs

Output-enable pin for PWM dimming for all channels

Independent string dimming control using SPI

Reports Open-Circuit LED Faults (MAX16810)

-40°C to +125°C Temperature Range

VIN 3-28V

C1

L1

D2

C4

+36V

R3

MAX16809: 38 lead TQFN

Package with exposed pad

5mm x 7mmx 0.8mm

Q1

LEDs

Applications:

R2

R4

• Backlighting:

Automotive displays

LCD Monitors, notebook computers

RGB LED backlight for TV and monitors

• RGB ambient light and signage

• Announcement displays

R5

µC

EXT

VCC

SYNC

CLK

DIN

DOUT

CS

LATCH

OE

SET

GND

LDO

C2

REF

C3

PGND

FREQ

R6

FB

OUT 1

OUT 2

OUT 3

OUT 4

OUT 8

Maxim Confidential

Large Scale LCD Monitors / TV Sets

Preliminary - Confidential

Î

Ö RGB Backlight replaces traditional CCFL Backlight in large Scale

TV Sets (>32“)

Î

Benefits of RGB LEDs over CCFL

Î

Ö Larger Color Gammut (color

space)

2010: Sequential RGB

Î

Ö Better Contrast

- Cost Saving!

Î

Ö Unmatched Realism

- Energy Saving

Î

Ö Adjustable Whitepoint

Î

Ö LED lifetime

Î

Ö Mercury Free (2007)

LCD TV Backlight Concept

Preliminary - Confidential

Power

Supply

Description:

- 37” TV Set

- RGGB Aproach

- Multiple Submodules

- Linear Regulator

- ~13000cd/m2 BL

- ~650cd/m2 LCD

- LED Currents:

150mA to 400mA

9x4x9 System:

81 RED

81 BLUE

162 GREEN

RGB Sensor

uC

ASIC

ASIC

ASIC

ASIC

ASIC

SubModule

ASIC

ASIC

ASIC

ASIC

NPP: SP08 Boost/SEPEC with Four

Channel Linear LED Current Driver

Boost Or SEPIC Power

Topologies For

Maximum Flexibility

Controller

All White/Mono Color,

RGB or RGB + A

Driver Configurations

L1

D1

Up To 40V Output Voltage

5V To 24V

(40V Load Dump OK)

Q1

R5 R7

R1

C7

C1

Individual PWM

Inputs For

Each Channel

R4

R6 R8

C4

GND GND GND GND GND

GND

System

Interface

Q2 Q3 Q 4 Q5

IN

DL VCS

SYSTEM

µC

GND

DIM

SDA

SCL

Enable

DIM1

DIM2

DIM3

DIM4

SDA

SCL

I

2

C Interface

SYNC/EN

SP08

FB

OVP

SNS

DR4

DR3

DR2

DR1

DL1

CS1

DL2

CS2

DL3

CS3

DL4

CS4

R9 R10 R11 R12

Voltage

Monitoring for short or open LED

Detection

Programmable

LED current via I2C

C3

COMP RT CSS REF VCC GND PGND

I2C Interface for adjusting the boost voltage to minimize drop across linear drivers

GND GND

R2

GND

R3

GND

C2

GND

C5 C6

GND GND GND GND

GND

Maxim Confidential

SP08 - Example System Architecture

Preliminary - Confidential

Ugrn

Separate RGB

Power Supplies

Ö

reduce Pdiss

5V

Power

Supply

Ured

Ugrn

Ublu

SubModule

Feedback

3

Dynamic

Power

Control

Ö

reduce Pdiss

1 unit with

4x9 LEDs

LED Strings

- Variable No. of LEDs

Light Sensor

(white/RGB)

Control Unit

- Start settings

- White Balance

- Temperature

- Roadmap:

µC + Sensor + Diode

CAL

Data

ROM uC

Core

I2C

Interface

PWM

Interface

Amp

ADC

AS3691

Overtemp

Vc Vc Vc Vc

Ri1 Ri2 Ri3 Ri4

LED Driver

- Very High Accuracy

- Indiv. PWM inputs

- 10mA to 200mA

- QFN or Die

NPP: SPxx 3-CH Boost with Four Channel

Linear LED Current Driver Controller

Maxim Confidential

NPP: SPxx 3-CH Boost with 12-Channel

Linear LED Current Driver Controller

Maxim Confidential

Notebook_LCD BL Solution

Maxim Confidential

System S ensing and

I nterconnect P roducts

SSIP Business Unit

Subsystem Solutions

GPIO & LED Driver

LED Driver

He, Haoran

Brea Fan

Target Application:

Cell phones, PDAs, and Hand-held solutions

Printers

Laptops, PCs and Servers in computing applications

Router, SAN/NAS and telecom infrastructures

Basic Operations of an I/O Port

Expander

I/O expansion in the system

Controlled by master device

(μC, Baseband) via I2C or

SPI interface

Ports

• Logic input

• Push Pull or Open Drain output (drive LED’s, Relays)

• Level Shifting (low voltage

ASIC’s can drive high voltage loads)

• Interrupt output (when

Input logic changes)

Portfolio of I/O Expanders

Additional I/O Expander Parts

Second Source Products

MAX7324 – MAX7327

Low Cost Port I/O Expanders with Transition Detection

+3.3V

µC

SCL

SDA

RS T

INT

0V

V+

MAX7321

SCL

SDA

RS T

INT

MAXIM

AD0

AD2

GND

O9

O8

P7

P6

P5

P4

P3

P2

P1

P0

O15

O14

O13

O12

O11

O10

Output

Output

Output

Output

I/O

I/O

I/O

I/O

I/O

I/O

I/O

I/O

.

•400kbit I²C serial interface

•LOW 1.71V to 5.5V Supply Voltage

•16 I/O ports - inputs, push-pull or open drain outputs

•Ports are rated at 5.5V and 10mA

•Port outputs have selectable default logic states

•Port inputs are over-voltage protected to 5.5V

•Port inputs have selectable internal pullups

•Port inputs are monitored for transition detection

•Transient port input changes are latched

•Mask register selects which ports can cause INT

•INT output alerts input transitions

•RST input clears the serial interface

•2µA maximum operating current

•4mm x 4mm TQFN and QSOP packages

4mm x 4mm

QFN

Maxim Offers Wide Range of LED Display

Drivers for Multiplexed and Static Displays

All Maxim LED Drivers can be configured for Individual LED Drive

MAX6952/3 Drive 4- 5x7 LED Matrix

Tiles with 104 ROM-Coded Characters

MAX7219/20/21 & MAX6950/51 are industry standard 5/8 Digit 7-Segment

LED Drivers

MAX6954/55 Drive 14/16-Segment

Displays and include 32-Key Scan

MAX6968-83 are 8/16 port Constant-

Current LED Drivers for Signage/Traffic

MAX6972-75 are 16/24 Port Precision LED

Drivers with 12/14 Bits PWM Control

Multiplexed LED Drivers

Part

MAX7219

MAX7220

MAX7221

MAX6950

MAX6951

MAX6952

MAX6953

MAX6954

MAX6955

MAX6958

MAX6959

Interface

3-wire

SPI

10MHz

SPI

26MHz

SPI

26MHz

I²C

400kHz

SPI

26MHz

I²C

400kHz

I²C

400kHz

I²C

400kHz

Supply

4V - 5.5V

2.7V -

5.5V

2.7V -

5.5V

2.7V -

5.5V

3V - 5.5V

Display Type

8 digits, 7-seg +

DP

5 digits, 7-seg +

DP

8 digits, 7-seg +

DP

5 digits

7-seg + DP

8 digits

7-seg + DP

Package

24 DIP

24 SO

24 QSOP

24 QFN 4x4

16 QSOP

4 digits

5x7 matrix

16 digits

7-segment + DP or

8 digits

14/16-segment +

DP

4½ digit driver

(4 digits, 9segment)

40 DIP

36 SSOP

40 DIP

36 SSOP

16 DIP

16 QSOP

Fonts

Code B

Hex

104 fixed characters plus 24 user definable

104 fixed characters plus 24 user definable

Hex

Intensity

16 global steps

16 global steps

16 steps per digit

16 steps per digit

64 global steps

Features

Segment blinking

Segment blinking

Segment blinking

32 keys scan/ debounce

5 GPIO

8 keys scan/ debounce

MAX6958, MAX6959

4½ Digit LED Drivers with optional Key Scan

3V to 5.5V operation

Drives 4-digit 7-segments and 4 or 8 additional discrete LEDs

Digital PWM brightness control with 64 steps

Hexadecimal decode/no-decode digit selection

Key-scan and debounce for up to 8 key-switches, with interrupt Slewrate limited segment drivers for lower EMI

Low-power shutdown (data retained)

-40°C to +125°C temperature range

Small 16-pin QSOP Package (DIP also available)

MAX6968 – MAX6983 Constant-Current LED Drivers with optional Fault Detection and Watchdog

25Mbit Industry Standard 4-Wire Serial Interface

3V to 5.5V Logic Supply

8 or 16 Constant Current LED Outputs

LED Outputs Rated at 5.5V or 36V

Up to 55mA Continuous Current per Output

Output Current Programmed by Single Resistor

2% Current Matching Between Outputs

6% Current Matching Between ICs

Optional Watchdog Clears Display if Interface

Fails

Optionally Reports Open Circuit LED Faults

8-port, Dual 8-port and 16-port Versions

8-port versions in 16 pin DIP and TSSOP

Packages

16-port versions in 24 pin DIP and TSSOP

Alternative Dual 8-port versions can be used as either two 8-port or a single 16-port

-40°C to +125°C Temperature Range

.

CLK

DATA

LOAD

SEL

MAX6974 and MAX6975

24-Output Precision R G B LED Driver for Message

Boards

SYSTEM

16 RGB LEDs

MAX6974

MAXIM

CLKI

DINI

CLKO

DINO

LOADI LOADO

SELI SELO

R0/G0/B0

R1/G1/B1

R2/G2/B2

R3/G3/B3

R4/G4/B4

R5/G5/B5

R6/G6/B6

R7/G7/B7

MAX6974

MAXIM

CLKI

DINI

CLKO

DINO

LOADI LOADO

SELI SELO

R0/G0/B0

R1/G1/B1

R2/G2/B2

R3/G3/B3

R4/G4/B4

R5/G5/B5

R6/G6/B6

R7/G7/B7

.

24 LED current sink outputs (3 banks of 8 outputs)

Drives RGB, discrete, and common anode LEDs

35Mbit clock supports up to 65 frames/second video

12 bit or 14 bit individual PWM LED intensity controls

7 bit or 5 bit panel PWM intensity control

Constant current LED drive outputs up to 55mA

LED drive current adjustable digitally for each 8 output bank from 6mA to 30mA in 256 steps for calibration

3V to 7V LED supplies

3V to 3.6V logic supply

800mV driver headroom at 85°C:

drive 2.2V red LEDs from a 3.33V ±10% supply

drive 3.3V green LEDs from a 4.55V ±10%

supply

drive 4.2V blue LEDs from a 5.55V ±10%

supply

Slew rate controlled LED drivers minimise EMI

Open circuit LEDs detected, latched as fault status bit

Serial interface cascade outputs are provided which allow multiple driver cascading without external buffers

Optional watchdog timer blanks display if interface fails

-40°C to +125°C temperature range as standard

InfoComm

Cell Phone Power

White LED Drivers

Buck DC-DC Converters

Single-Cell Li-Ion Chargers

LDO Linear Regulators

Micro Power Management IC (uPMIC)

PMICs

Backup

Power Opportunities in Cell and Smart

Light Management

Series

MAX1576

MAX1707

MAX8631

MAX8678

Backlight

Main/Flash

Main/Sub/Flash

4 Main/4 Flash,Dual LDO

WLED + Audio Amp

Parallel

Flash

MAX1582 4+2LEDs

MAX8595 9 LEDs

MAX1848 3 LEDs

MAX1574 3LED

MAX1573 4LED

MAX1570 5LED

MAX8630 3+2

MAX8607

MAX1577

MAX1583

1.5A BST

1.2A C/P

5x0.3A BST

LDO LDO

Phones

PMIC

MAX8629 CDMA

MAX1827 CDMA

MAX1526 CDMA

MAX1500 GSM

MAX1504 GSM

Charger

Chargers

MAX8606

MAX8808

MAX1507/8

MAX1879

USB/AC IN

1A LINEAR

PULSE

Audio

CODEC many more

PMIC

Flash

Back

Light

SDIO

Analog BB nLED

Sub-Display

OLED

STN

TFT

Bias Supply

MAX1578/9 BIAS/BKLT

MAX868 OLED

MAX8608 TFT BKLT/PMOLED

LCD Display

QCIF 128X160

QCIF+ 176x220

QVGA 240x320

Bias Supply

Vgon

Vgoff

Va

Bias

Application Processor uPMIC

Digital BB RF XCVR

MOBILE

WIRELESS

MAX1797

MAX1947

Boost micro PMIC

MAX8620

MAX8621

1 BUCK/2 LDO

2 BUCK/4 LDO/RST uPMIC

Buck's

MAX8560/61 0.5A BUCK, SOT

MAX8640

MAX1572

0.5A BUCK, SC70

0.8A 4X4

MAX1920 0.4A, SOT

PA Buck

B/T

WLAN

LDO

FIXED

WIRELESS

LDO's

MAX8510 LDO L/N RF

MAX1963/76 LDO 1.6Vin min

MAX8530 2 LDO CAMERA

MAX8531/32 2 LDO CAMERA

MAX8559 2 LDO L/N PSRR

MAX8890 3 LDO RF

MAX8635/6 2 LDO 2x2mm

PA Buck

MAX1820 0.6A, CSP

MAX8562 0.5A, 4MHz

MAX8581/2 0.6A, 0.07 BYPASS

MAX8506/7/8 0.6A. 0.075 BYPASS

MAX8805 1A, 0.065 BYPASS, 2 LDO

POWER Handheld and Wireless

White LED

Backlight / Camera Flash / Display

Charge

Pump

MAX1595

3.3/5 Vout,2x,125mA

MAX1910/2

4 LED,uMAX

(0) 1.5/2x

(2) 1.5x only

MAX1916

I-reg,3 LED,SOT

MAX1570

I-reg,5 LED,1/1.5x,QFN4

MAX1573

I-reg,0.2% Matching,4 LED

η 85%,1/1.5x,CSP/QFN4

MAX1574

I-reg,3 LED,1/2x,DFN3

MAX1575

I-reg,2-display (4+2LED)

η 85%,1/1.5x,QFN4

MAX1576

CP,I-reg,Main+600mA typ Flash

η 85%,1/1.5/2x,QFN4

MAX1707

Main+RGB/Sub+Flash,QFN4

MAX8630

5LED,1/1.5x,DFN3

MAX8647/48 (PP52)

Main or RGB,1/1.5x,I2C,QFN3

Inductor

Boost

MAX1848

Boost,3 LED,DFN/SOT

MAX1561/1599

Boost,30V,OVP,DFN3

(61) 1MHz

(99) 500kHz,

η 87%

MAX1582

Boost,2-display(4+2LED)

26Vout,

η 85%,CSP/QFN4

MAX8595/6

Boost,9 LEDs,TComp

η 86%,DFN3

MAX8608

Boost for Dual Display

OLED/TFT,DFN3

MAX1578/9

LCD Bias:+5/+15/-10V with

Sequence+White

LED:Boost,32V,1MHz,TempComp

QFN4

MAX8830 (PP74)

4LEF+Flash,I2C,CSP

Camera

Flash

AudioLMU

MAX682

CP,3.3/5 Vout,250mA

MAX1687

Buck-Boost,900mA for 1 LED

True Shutdown,OVP,Iin Reg

MAX1583

Boost,I-reg,PreCh/Movie/Flash

5x300mA/LED,DFN3

MAX1577

CP,1.2A typ,DFN3

MAX8607

Boost,1.5A,I-Reg,DFN3

MAX8631/MAX8645 (PP24)

CP,I-reg,Main+400mAFlash

+2 LDOs,QFN4

MAX8678 (PP86)

CP 4WLED,Class AB,QFN3

MAX8821 (PP93)

CP 6WLED,2LDO,Class D,I2C,QFN4

Light Management – Charge Pump Product

Migration

• Charge Pumps are good for High Integration, Low EMI, Low Solution Height.

• Many more products than shown below

400mA

Flash Display

Display

Display

MAX1576

MAX1910

MAX1570

Control

Control

Released 1H/2002

3x5mm uMAX

1.5x/2x Modes

Ballast Resistors

Control

Released 2H/2002

4x4mm TQFN

1x/1.5x Modes

Industy’s 1st 1x Mode

1µF

Released 2004

4x4mm TQFN

1x/1.5x/2x Modes

1st Backlight + 400mA Flash

1µF

Display RGB or Sub 400mA Flash

I

2

C

Port

MAX1707

4

3

4

Released 2006

4x4mm TQFN

1x/1.5x/2x Modes

Adds I

2

C Port and RGB

Input

2.7V to 5.5V

2.2µF

IN1

PGND1

Logic control and

I 2 C interface

Input

2.7V to 5.5V

Input

2.7V to 5.5V

2.2µF 100 nF

1µF

A0

V

D D

SDA

SCL

IN2

Control

REF

AGND

IN3

PGND2

Reference

1x/1.5x

Charge pump

NEG

Low- Dropout current regulators

LED1

LED2

LED3

LED4

LED5

LED6

LDO1

LDO1

LDO2

LDO2

1µF

2.2µF

MAIN

SUB

1µF

Differenti al audio input

AIN+

AIN-

PGA

CLASS D

AMP

SPK+

SPK-

EP

GND

2007

MAXIM

MAX8821

Individual control

0.1mA to 25.6mA

Dimming Range

Dual low noise LDO

Loudspeaker /

Earpice

Light Management – Inductive Boost Product Migration

• Good for High Integration, High Efficiency, Higher LED Count/Minimum Connections.

Released 1H/2001

3x3mm TQFN

13V Max – 3 Serial LEDs

Analog Brightness Control

Released 1H/2003

3x3mm TDFN

300mA Max

Precharge/Movie/Flash Modes

Released 1H/2003

3x3mm TDFN

26V Max – 6 Serial LEDs

Analog or PWM Brightness

Control

Released 1H/2005

3x3mm TQFN

1.5A Max

Movie/Flash Modes

Released 2H/2004

3x3mm TDFN

38V Max – 9 Serial LEDs

Analog or PWM Brightness Control

T

A

Derating Function

INP UT

2.7V to 5.5V

M O VIE O N

FLA SH O N

I 2 C

V

LOGIC

2.2

µH to 10µH

IN

LX

O UT

PROG RAM M A BLE

O UTPUT

3.8V TO 5.2V

U P TO 280m A

G ND

PG ND

CO M P

MAXIM

MA X8830

M VO N

FLEN

S CL

SDA

V

DD

FLE D

200m A FLA SH

LED1

LED2

LED3

LED4

Sampling

2.5x2.5mm uCSP

4WLED+Flash, I2C

Open/Short Led Detection

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