ZXLD1601H6TA Diodes Zetex, ZXLD1601H6TA Datasheet

ZXLD1601H6TA

Manufacturer Part Number

ZXLD1601H6TA

Description

IC LED DRVR WT/OLED BKLGT SC70-6

Manufacturer

Diodes Zetex

Type

Backlight, OLED, White LEDr

Datasheet

1.ZXLD1601H6TA.pdf (12 pages)

Specifications of ZXLD1601H6TA

Topology

PWM, Step-Up (Boost)

Number Of Outputs

Internal Driver

Yes

Type - Primary

General Purpose

Type - Secondary

OLED

Frequency

1MHz

Voltage - Supply

2.5 V ~ 5.5 V

Voltage - Output

2.5 V ~ 28 V

Mounting Type

Surface Mount

Package / Case

SC-70-6, SC-88, SOT-363

Operating Temperature

-40°C ~ 85°C

Current - Output / Channel

250mA

Internal Switch(s)

Yes

Efficiency

85%

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

Other names

UZXLD1601H6TA
UZXLD1601H6TR
UZXLD1601H6TR
ZXLD1601H6TR

Current page: 1 of 12
Download datasheet (140Kb)

ADJUSTABLE DC - DC BOOST CONVERTER WITH INTERNAL SWITCH

IN SC70

DESCRIPTION

The ZXLD1601 is a PFM inductive boost converter

designed to provide output voltages of up to 28V from

a 2.5V to 5.5V input supply.

The ZXLD1601 includes the output switch and peak

current sense resistor, and can provide up to 10mA

output current at maximum output voltage. Higher

current is available at lower output voltages.

Quiescent current is typically 60 A and a shutdown

function is provided to reduce this current to less than

100nA in the ‘off’ state.

ADVANCED FEATURES

•

FEATURES

•

ISSUE 3 - AUGUST 2004

Internal 30V NDMOS switch, current sense and

output setting resistors.

True analogue output voltage control via PWM

with internal filter

Low profile SC70-6 pin package

Internal PWM filter for adjustable output

High efficiency (85% typ)

Wide input voltage range: 2.5V to 5.5V

Up to 250mA output current at 5V

Low quiescent current: (60 A typ)

100nA maximum shutdown current

Up to 1MHz switching frequency

Low external component count

TOP VIEW

PINOUT

Output voltage is set to a nominal value between 26V

and 28V, by an internal resistor network, but can be

adjusted to lower values by external resistors, an

external PWM control signal applied to the ‘Enable’

pin, or a combination of the two. Depending upon the

control frequency, the PWM signal will provide either

continuous (low ripple) or gated control. The PWM

filter components are contained within the chip.

Minimum output voltage is determined by the input

supply.

The device is assembled in a low profile SC70-6 pin

package.

APPLICATIONS

•

LCD and OLED bias

Cellular / mobile phones

Digital cameras

PDAs

LCD modules

Varactor and PIN diode bias

Palmtop computers

TYPICAL APPLICATION CIRCUIT

ZXLD1601

S E M I C O N D U C T O R S

Related parts for ZXLD1601H6TA

ZXLD1601H6TA Summary of contents

Page 1

ADJUSTABLE BOOST CONVERTER WITH INTERNAL SWITCH IN SC70 DESCRIPTION The ZXLD1601 is a PFM inductive boost converter designed to provide output voltages 28V from a 2.5V to 5.5V input supply. The ZXLD1601 includes the ...

Page 2

ZXLD1601 ABSOLUTE MAXIMUM RATINGS (Voltages to GND unless otherwise stated) Input voltage ( output voltage (V ) 30V LX Switch output current (I ) 500mA LX Power dissipation (PD) 300mW Operating temperature (T ) -40 to ...

Page 3

ELECTRICAL CHARACTERISTICS (Cont.): Symbol Parameter T/T PWM duty cycle range at ‘EN’ input for dc output voltage control fLPF Internal PWM low pass filter cut-off frequency ALPF Filter attenuation (4) T/T PWM duty cycle range at ‘EN’ input for ‘gated’ ...

Page 4

ZXLD1601 PIN DESCRIPTION Pin No. Name Description LX Output of NDMOS switch 1 2 GND Ground (0V Feedback pin for voltage control loop Nominal voltage 1.025V 4 EN Enable input (active high to turn on device) Also used ...

Page 5

Device Description The device is a PFM flyback dc-dc boost converter, working in discontinuous mode. With reference to the chip block diagram and typical application circuit, the operation of the device is as follows: Control loop When ‘EN’ is high, ...

Page 6

ZXLD1601 TYPICAL CHARACTERISTICS 6 ISSUE 3 - AUGUST 2004 ...

Page 7

TYPICAL PERFORMANCE GRAPHS (For typical applications circuit ISSUE 3 - AUGUST 2004 =3V, L=22µH Murata LQH32CN series ZXLD1601 =25°C unless otherwise stated ...

Page 8

ZXLD1601 APPLICATIONS Setting output voltage When connected as shown in the typical application circuit, the ZXLD1601 will produce a nominal default output of between 26V and 28V. This is set by the internal potential divider comprising of resistors R1 and ...

Page 9

Capacitor selection A ceramic capacitor grounded close to the GND pin of the package is recommended at the output of the ...

Page 10

ZXLD1601 Diode selection The rectifier diode (D1) should be a fast low capacitance Schottky diode with low reverse leakage at the working voltage. It should also have a peak current rating above the peak coil current and a continuous current ...

Page 11

NOTES: ISSUE 3 - AUGUST 2004 ZXLD1601 ...

Page 12

ZXLD1601 PACKAGE OUTLINE ORDERING INFORMATION DEVICE DEVICE DESCRIPTION ZXLD1601H6 Boost converter in SC70-6 -40°C to +85°C TA reels 3000 devices, TC reels 10000 devices © Zetex Semiconductors plc 2004 Europe Americas Zetex GmbH Zetex Inc Streitfeldstraße 19 700 Veterans Memorial ...

Related keywords

zxld1366
zxld1356
zxld1350
zxld1601
zxld1370
zxld1362
zxld1360et5ta
zxld1360
zxld1321
zxld1320
ZXLD1601H6TA datasheet
ZXLD1601H6TA data sheet
ZXLD1601H6TA pdf datasheet
ZXLD1601H6TA component
ZXLD1601H6TA part
ZXLD1601H6TA distributor
ZXLD1601H6TA RoHS
ZXLD1601H6TA datasheet download