MAX1583ZETB+T Maxim Integrated Products, MAX1583ZETB+T Datasheet

IC LED DRIVR PHOTO FLASH 10-TDFN

MAX1583ZETB+T

Manufacturer Part Number
MAX1583ZETB+T
Description
IC LED DRIVR PHOTO FLASH 10-TDFN
Manufacturer
Maxim Integrated Products
Type
Photo Flash LEDr
Datasheet
1.MAX1583XETBT.pdf (10 pages)

Specifications of MAX1583ZETB+T

Constant Current
Yes
Topology
Step-Up (Boost)
Number Of Outputs
1
Internal Driver
Yes
Type - Primary
Flash/Torch
Type - Secondary
White LED
Frequency
750kHz ~ 1.25MHz
Voltage - Supply
2.6 V ~ 5.5 V
Voltage - Output
24V
Mounting Type
Surface Mount
Package / Case
10-TDFN Exposed Pad
Operating Temperature
-40°C ~ 85°C
Current - Output / Channel
250mA
Internal Switch(s)
Yes
Efficiency
80%
Number Of Segments
5
Operating Supply Voltage
2.6 V to 5.5 V
Maximum Power Dissipation
1951 mW
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Minimum Operating Temperature
- 40 C
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
The MAX1583 white LED boost converter drives up to
five white LEDs with a constant current to provide cam-
era flash/strobe in cell phones, PDAs, DSCs, and other
hand-held devices. The MAX1583 includes a 24V boost
converter and a high-voltage LDO current regulator for
high efficiency and long battery life. Two logic inputs
control four modes of operation: shutdown mode (0.5µA
max), movie mode for high-efficiency continuous light-
ing (programmable up to 100mA), precharge mode for
charging a reservoir capacitor to 24V while the LEDs
are off (POK output indicates a full reservoir capacitor),
and strobe mode for firing the flash during an exposure
with a regulated current programmable up to 300mA.
The MAX1583X, MAX1583Y, and MAX1583Z offer high,
medium, and low current limits, respectively, to allow
tradeoff between reservoir capacitor size and peak
input current.
The MAX1583 is available in a 10-pin 3mm x 3mm
TDFN package (0.8mm max height).
19-3135; Rev 1; 8/05
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.
2.6V TO 5.5V
V
Camera Flashes/Strobes
Cell Phones and Smart Phones
PDAs and Digital Still Cameras
IN
Typical Operating Circuit
IN
GND
POK
EN1
EN2
STB
MOV
________________________________________________________________ Maxim Integrated Products
MAX1583
General Description
OUT
LED
LX
EN1
0
0
1
1
Applications
EN2
0
1
0
1
SHUTDOWN
PRECHARGE
MOVIE
STROBE
I
300mA
LED
UP TO
White LED Camera-Flash
♦ Supports Up to Five LEDs for Strobe or Flash
♦ Four Operational Modes
♦ Input Current Limiting
♦ Small External Components
♦ 2.6V to 5.5V Input Range
♦ 24V Output Overvoltage Protection
♦ 80% Efficient (P
♦ Thermal-Shutdown Protection
♦ 10-Pin 3mm x 3mm TDFN Package
+Denotes lead-free package.
Ordering Information continued at end of data sheet.
MAX1583XETB-T
MAX1583XETB+T
MAX1583XETB
MAX1583YETB
MAX1583ZETB
TOP VIEW
A "+" SIGN WILL REPLACE THE FIRST PIN INDICATOR ON LEAD-FREE PACKAGES.
Strobe: Up to 300mA
Precharge: With POK Indicator
Movie: Up to 100mA
Shutdown: 0.01µA (typ) Quiescent Current
1A (MAX1583X)
500mA (MAX1583Y)
250mA (MAX1583Z)
PART
PART
MOV
GND
POK
STB
Boost Converter
IN
+
LED
-40°C to +85°C
-40°C to +85°C
TEMP RANGE
1
2
3
4
5
CURRENT LIMIT
Ordering Information
(3mm x 3mm)
/ P
500mA
250mA
MAX1583
TDFN
IN
1A
Pin Configuration
) Movie Mode
Selector Guide
PIN-PACKAGE
10 TDFN 3mm x 3mm
10 TDFN 3mm x 3mm
10
9
8
7
6
LX
LED
OUT
EN2
EN1
TOP MARK
Features
ACK
ACJ
ACL
1

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MAX1583ZETB+T Summary of contents

Page 1

... STB EN1 MOV ________________________________________________________________ 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. White LED Camera-Flash ♦ Supports Up to Five LEDs for Strobe or Flash ♦ Four Operational Modes Strobe 300mA Precharge: With POK Indicator Movie 100mA Shutdown: 0.01µ ...

Page 2

White LED Camera-Flash Boost Converter ABSOLUTE MAXIMUM RATINGS IN, EN1, EN2, POK to GND ......................................-0.3V to +6V LX, OUT to GND .....................................................-0.3V to +30V STB, MOV to GND .......................................-0. LED to GND..............................................-0. ...................................................................................1.2A LX Stresses ...

Page 3

ELECTRICAL CHARACTERISTICS (continued 3.0V 0V EN1 EN2 OUT T = +25°C. Note 1) A PARAMETER EN1 and EN2 Input High Threshold EN1 and EN2 Input Low Threshold EN1 and EN2 Input Leakage ...

Page 4

White LED Camera-Flash Boost Converter (V = 3.3V 10µF, MAX1583Y, 4 LEDs array RES MAXIMUM BOOST OUTPUT CURRENT vs. INPUT VOLTAGE (MAX1583Z) 450 A: 1 LED 400 B: 2 LEDs A ...

Page 5

C = 10µF, MAX1583Y, 4 LEDs array RES SWITCHING WAVEFORMS IN STROBE MODE MAX1583 toc11 V POK I LED V OUT I IN 20μs/div PRECHARGE-CYCLE WAVEFORMS (MAX1583Z) V POK I ...

Page 6

White LED Camera-Flash Boost Converter PIN NAME 1 GND Ground. Connect to exposed paddle Input Voltage Supply. Input voltage range is 2.6V to 5.5V. Bypass IN to GND with a 4.7µF ceramic capacitor. Movie Current-Set Input. Connect a ...

Page 7

Detailed Description The MAX1583 provides power and control for up to five white LEDs. The MAX1583 consists of a gated oscilla- tor, a 24V boost converter, and an LED current-regula- tion circuit, and operates from 2.6V to 5.5V input supply ...

Page 8

White LED Camera-Flash Boost Converter V IN 2.6V TO 5.5V R3 100kΩ POWER-OK MODE CONTROL Figure 1. Typical Application Circuit Design Procedure Adjusting the LED Current The LED current in the strobe and movie modes is pro- grammable using external ...

Page 9

... The traces from IN to the inductor and from the Schottky diode to the LEDs can be longer. TRANSISTOR COUNT: 1395 PROCESS: BiCMOS PART MAX1583YETB-T MAX1583YETB+T MAX1583ZETB the MAX1583 MAX1583ZETB+T . The RMS diode OUT +Denotes lead-free package. × LIMIT Boost Converter Applications Information ...

Page 10

... Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. 10 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © 2005 Maxim Integrated Products D ...

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