LV52207AXA 반도체 회로 부품 판매점
Dual channel LED Boost Driver
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 ON Semiconductor |
LV52207AXA
Bi-CMOS LSI
Dual channel LED Boost Driver
with PWM and 1-Wire Dimming
www.onsemi.com
Overview
The LV52207AXA is a high voltage boost driver for LED drive with 2
channels adjustable constant current sources.
Feature
Operating Voltage from 2.7V to 5.5V
Integrated 40V MOSFET
1-Wire 255 level digital and PWM dimming
Supports CABC
600kHz Switching Frequency
37.5V OVP Threshold
Typical Applications
LED Display Backlight Control
WLP9, 1.31x1.31, 0.4mm pitch
(1.31mm x 1.31mm, Amax=0.625 mm)
Fig1. 5x2 LED Application
ORDERING INFORMATION
See detailed ordering and shipping information on page 18 of this data sheet.
© Semiconductor Components Industries, LLC, 2014
November 2014 - Rev. 1
1
Publication Order Number :
LV52207AXA/D
LV52207AXA
Specifications
Absolute Maximum Ratings at Ta = 25C
Parameter
Maximum supply voltage
Mal ximum Pin voltage1
Maximum Pin voltage2
Allowable power
Operating temperature
Storage temperature
Symbol
VCC max
V1 max
V2 max
Pd max
Topr
Tstg
Conditions
VCC
SW
Other pin
Ta=25C *1
Ratings
6
40
5.5
0.95
40 to +85
55 to +125
Unit
V
V
V
W
C
C
*1 Mounted on a specified board: 70mm×70mm×1.6mm (4 layer glass epoxy)
Caution 1) Absolute maximum ratings represent the values which cannot be exceeded for any length of time.
Caution 2) Even when the device is used within the range of absolute maximum ratings, as a result of continuous usage under high
temperature, high current, high voltage, or drastic temperature change, the reliability of the IC may be degraded. Please
contact us for the further details.
Stresses exceeding those listed in the Maximum Ratings table may damage the device. If any of these limits are exceeded, device functionality should not be assumed,
damage may occur and reliability may be affected.
Recommended Operating Conditions at Ta = 25C
Parameter
Supply voltage range1
PWM frequency
MIN DUTY (PWM pin)
Symbol
VCC op
Fpwm
Dminpwm
Conditions
VCC
PWM pin input signal
PWM pin input signal
Ratings
2.7 to 5.5
300 to 100k
0.9%
Unit
V
Hz
Functional operation above the stresses listed in the Recommended Operating Ranges is not implied. Extended exposure to stresses beyond the Recommended
Operating Ranges limits may affect device reliability.
Electrical Characteristics Analog block
at Ta=25°C, VCC=3.6V, RT resistor=63.4K unless otherwise specified
Parameter
Standby current
dissipation
DC/DC current
dissipation1
FB Voltage
Output Current1
Output Current
Matching1
LEDO1, 2 max current
LEDO1, 2 leak current
OVP Voltage
LEDO_OVP Voltage
SWOUT ON resistance
NMOS Switch Current
Limit
OSC Frequency
High level input voltage
Low level input voltage
Under Voltage Lockout
EN pin output voltage
for Acknowledge
Symbol
Icc1
Icc2
Vfb
Io1
Iom1
Imax
Ilk
Vovp
VLovp
Ron
ILIM
Fosc
VINH
VINL
Vuvlo
Vack
Conditions
EN=PWM=L
Device enable, switching 0.6 MHz
and no load
LEDO1, 2=20mA
LEDO1 LEDO2
LEDISET=20mA
Duty=100%
LEDO1 LEDO2 LEDISET=20mA
Duty=100%
(IMAX – IAVG) / IAVG
LEDO1 LEDO2
LEDO1 LEDO2
SW_pin over voltage threshold
LEDO_pin over voltage threshold
LEDO DC rising
IL=100mA
EN PWM
EN PWM
VIN falling
Rpullup=15k
min
19.6
40
36
4.2
1
500
1.2
0
Ratings
typ
0
0.7
0.2
20
max
2
1.2
20.4
Unit
A
mA
V
mA
0.3 2 %
mA
1 A
37.5 39 V
4.5 5.0 V
300 m
1.5 A
600 750 kHz
VCC
V
0.4 V
2.2 V
0.4 V
Product parametric performance is indicated in the Electrical Characteristics for the listed test conditions, unless otherwise noted. Product performance may not be
indicated by the Electrical Characteristics if operated under different conditions.
www.onsemi.com
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LV52207AXA led
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