MAX8709AETI+ datasheet, PDF - EEWORLD Datasheet

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MAX8709AETI+: DescriptionVacuum Fluorescent Driver, 1-Segment, BICMOS, 5 X 5 MM, 0.80 MM HEIGHT, MO220WHHD-1, TQFN-28; CategoryAnalog mixed-signal IC Drivers and interfaces; File Size955KB，24 Pages; ManufacturerMaxim; Websitehttps://www.maximintegrated.com/en.html; Environmental Compliance

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MAX8709AETI+ Overview

Vacuum Fluorescent Driver, 1-Segment, BICMOS, 5 X 5 MM, 0.80 MM HEIGHT, MO220WHHD-1, TQFN-28

MAX8709AETI+ Parametric

Parameter Name	Attribute value
Is it Rohs certified?	conform to
Maker	Maxim
Parts packaging code	QFN
package instruction	HVQCCN,
Contacts	28
Reach Compliance Code	compliant
ECCN code	EAR99
Factory Lead Time	1 week
Interface integrated circuit type	VACUUM FLUORESCENT DISPLAY DRIVER
JESD-30 code	S-XQCC-N28
JESD-609 code	e3
length	5 mm
Humidity sensitivity level	1
Multiplex display function	NO
Number of functions	1
Number of segments	1
Number of terminals	28
Maximum operating temperature	85 °C
Minimum operating temperature	-40 °C
Package body material	UNSPECIFIED
encapsulated code	HVQCCN
Package shape	SQUARE
Package form	CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE
Peak Reflow Temperature (Celsius)	260
Certification status	Not Qualified
Maximum seat height	0.8 mm
Maximum supply voltage	5.5 V
Minimum supply voltage	4.6 V
Nominal supply voltage	5 V
surface mount	YES
technology	BICMOS
Temperature level	INDUSTRIAL
Terminal surface	Matte Tin (Sn)
Terminal form	NO LEAD
Terminal pitch	0.5 mm
Terminal location	QUAD
Maximum time at peak reflow temperature	NOT SPECIFIED
width	5 mm

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19-3177; Rev 1; 3/05

TION K

VALUA

BLE

AVAILA

High-Efficiency CCFL Backlight

Controller with SMBus Interface

General Description

Features

♦

Synchronized to Resonant Frequency

Longer Lamp Life

Guaranteed Striking Capability

High Power-to-Light Efficiency

♦

Wide Input Voltage Range (4.6V to 28V)

♦

Feed Forward for Excellent Line Rejection

♦

SMBus Dimming Control Interface

♦

10:1 Dimming Range

♦

Guaranteed 200Hz to 220Hz DPWM Frequency

♦

Secondary Voltage Limit Reduces Transformer

Stress

♦

Adjustable Lamp-Out Protection with 1s Timer

♦

Secondary Current Limit Protects Against High-

Voltage Short Circuits to Ground

♦

Small 5mm x 5mm Thin QFN Package

MAX8709/MAX8709A

The MAX8709/MAX8709A integrated backlight controller

are optimized to drive cold-cathode fluorescent lamps

(CCFLs) using a resonant full-bridge inverter architecture.

The resonant operation maximizes striking capability and

provides near-sinusoidal waveforms over the entire input

range to improve CCFL lifetime. The controller operates

over a wide input voltage range of 4.6V to 28V with high

power-to-light efficiency. The device also includes safety

features that effectively protect against many single-point

fault conditions including lamp-out and short-circuit faults.

The MAX8709/MAX8709A achieve 10:1 dimming range

by “chopping” the lamp current on and off using a digital

pulse-width-modulation (DPWM) method. The minimum

DPWM duty cycle of the MAX8709 is 9.375% and the

minumum duty cycle of the MAX8709A is 12.5%. The

brightness is controlled with a 2-wire SMBus™-compati-

ble interface. The device directly drives the four external

N-channel power MOSFETs of the full-bridge inverter. An

internal 5.3V linear regulator powers the MOSFET dri-

vers, the DPWM oscillator, and most of the internal cir-

cuitry. The MAX8709/MAX8709A are available in a

space-saving 28-pin thin QFN package and operates

over a -40°C to +85°C temperature range.

Ordering Information

PART

MAX8709ETI

MAX8709AETI

TEMP RANGE

-40°C to +85°C

PIN-PACKAGE

28 Thin QFN 5mm x 5mm

Applications

Notebook Computer Displays

LCD Monitors

SMBus is a trademark of Intel Corp.

LCD TVs

Automotive Displays

Pin Configuration appears at end of data sheet.

Minimal Operating Circuit

BATT

BST2

BST1

REF

GH1

GND

LOT

MAX8709/

MAX8709A

ILIM

LX1

LX2

GL1

CCV

PGND

CCI

GL2

GH2

SUS

SDA

SCL

VFB

ISEC

IFB

________________________________________________________________

Maxim Integrated Products

For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at

1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.

MAX8709AETI+ Related Products

	MAX8709AETI+	MAX8709AETI-T	MAX8709AETI+T	MAX8709ETI	MAX8709ETI+T	MAX8709ETI+	MAX8709ETI-T	MAX8709AETI
Description	Vacuum Fluorescent Driver, 1-Segment, BICMOS, 5 X 5 MM, 0.80 MM HEIGHT, MO220WHHD-1, TQFN-28	Vacuum Fluorescent Driver, 1-Segment, BICMOS, 5 X 5 MM, 0.80 MM HEIGHT, MO220WHHD-1, TQFN-28	Vacuum Fluorescent Driver, 1-Segment, BICMOS, 5 X 5 MM, 0.80 MM HEIGHT, MO220WHHD-1, TQFN-28	Vacuum Fluorescent Driver, 1-Segment, BICMOS, 5 X 5 MM, 0.80 MM HEIGHT, MO220WHHD-1, TQFN-28	Vacuum Fluorescent Driver, 1-Segment, BICMOS, 5 X 5 MM, 0.80 MM HEIGHT, MO220WHHD, TQFN-28	Vacuum Fluorescent Driver, 1-Segment, BICMOS, 5 X 5 MM, 0.80 MM HEIGHT, MO220WHHD, TQFN-28	Vacuum Fluorescent Driver, 1-Segment, BICMOS, 5 X 5 MM, 0.80 MM HEIGHT, MO220WHHD-1, TQFN-28	Vacuum Fluorescent Driver, 1-Segment, BICMOS, 5 X 5 MM, 0.80 MM HEIGHT, MO220WHHD-1, TQFN-28
Is it Rohs certified?	conform to	incompatible	conform to	incompatible	conform to	conform to	incompatible	incompatible
Maker	Maxim	Maxim	Maxim	Maxim	Maxim	Maxim	Maxim	Maxim
Parts packaging code	QFN	QFN	QFN	QFN	QFN	QFN	QFN	QFN
package instruction	HVQCCN,	HVQCCN,	HVQCCN,	HVQCCN,	HVQCCN,	HVQCCN,	HVQCCN,	HVQCCN,
Contacts	28	28	28	28	28	28	28	28
Reach Compliance Code	compliant	compliant	compliant	not_compliant	compliant	compliant	compliant	not_compliant
ECCN code	EAR99	EAR99	EAR99	EAR99	EAR99	EAR99	EAR99	EAR99
Interface integrated circuit type	VACUUM FLUORESCENT DISPLAY DRIVER	VACUUM FLUORESCENT DISPLAY DRIVER	VACUUM FLUORESCENT DISPLAY DRIVER	VACUUM FLUORESCENT DISPLAY DRIVER	VACUUM FLUORESCENT DISPLAY DRIVER	VACUUM FLUORESCENT DISPLAY DRIVER	VACUUM FLUORESCENT DISPLAY DRIVER	VACUUM FLUORESCENT DISPLAY DRIVER
JESD-30 code	S-XQCC-N28	S-XQCC-N28	S-XQCC-N28	S-XQCC-N28	S-XQCC-N28	S-XQCC-N28	S-XQCC-N28	S-XQCC-N28
JESD-609 code	e3	e0	e3	e0	e3	e3	e0	e0
length	5 mm	5 mm	5 mm	5 mm	5 mm	5 mm	5 mm	5 mm
Humidity sensitivity level	1	1	1	1	1	1	1	1
Multiplex display function	NO	NO	NO	NO	NO	NO	NO	NO
Number of functions	1	1	1	1	1	1	1	1
Number of segments	1	1	1	1	1	1	1	1
Number of terminals	28	28	28	28	28	28	28	28
Maximum operating temperature	85 °C	85 °C	85 °C	85 °C	85 °C	85 °C	85 °C	85 °C
Minimum operating temperature	-40 °C	-40 °C	-40 °C	-40 °C	-	-	-40 °C	-40 °C
Package body material	UNSPECIFIED	UNSPECIFIED	UNSPECIFIED	UNSPECIFIED	UNSPECIFIED	UNSPECIFIED	UNSPECIFIED	UNSPECIFIED
encapsulated code	HVQCCN	HVQCCN	HVQCCN	HVQCCN	HVQCCN	HVQCCN	HVQCCN	HVQCCN
Package shape	SQUARE	SQUARE	SQUARE	SQUARE	SQUARE	SQUARE	SQUARE	SQUARE
Package form	CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE	CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE	CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE	CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE	CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE	CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE	CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE	CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE
Peak Reflow Temperature (Celsius)	260	245	260	245	260	260	245	245
Certification status	Not Qualified	Not Qualified	Not Qualified	Not Qualified	Not Qualified	Not Qualified	Not Qualified	Not Qualified
Maximum seat height	0.8 mm	0.8 mm	0.8 mm	0.8 mm	0.8 mm	0.8 mm	0.8 mm	0.8 mm
Maximum supply voltage	5.5 V	5.5 V	5.5 V	5.5 V	5.5 V	5.5 V	5.5 V	5.5 V
Minimum supply voltage	4.6 V	4.6 V	4.6 V	4.6 V	4.6 V	4.6 V	4.6 V	4.6 V
Nominal supply voltage	5 V	5 V	5 V	5 V	12 V	12 V	5 V	5 V
surface mount	YES	YES	YES	YES	YES	YES	YES	YES
technology	BICMOS	BICMOS	BICMOS	BICMOS	BICMOS	BICMOS	BICMOS	BICMOS
Temperature level	INDUSTRIAL	INDUSTRIAL	INDUSTRIAL	INDUSTRIAL	OTHER	OTHER	INDUSTRIAL	INDUSTRIAL
Terminal surface	Matte Tin (Sn)	TIN LEAD	Matte Tin (Sn)	Tin/Lead (Sn/Pb)	MATTE TIN	Matte Tin (Sn)	TIN LEAD	Tin/Lead (Sn/Pb)
Terminal form	NO LEAD	NO LEAD	NO LEAD	NO LEAD	NO LEAD	NO LEAD	NO LEAD	NO LEAD
Terminal pitch	0.5 mm	0.5 mm	0.5 mm	0.5 mm	0.5 mm	0.5 mm	0.5 mm	0.5 mm
Terminal location	QUAD	QUAD	QUAD	QUAD	QUAD	QUAD	QUAD	QUAD
Maximum time at peak reflow temperature	NOT SPECIFIED	NOT SPECIFIED	NOT SPECIFIED	NOT SPECIFIED	NOT SPECIFIED	NOT SPECIFIED	NOT SPECIFIED	NOT SPECIFIED
width	5 mm	5 mm	5 mm	5 mm	5 mm	5 mm	5 mm	5 mm

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