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PT4115BSOH-B

Description
30V 1.2A
CategoryOther integrated circuit (IC)    The LED driver   
File Size1008KB,18 Pages
ManufacturerChina Resources Microelectronics Limited
Founded in 2004, China Resources Silicon Power Technology (Shanghai) Co., Ltd. (hereinafter referred to as "China Resources Silicon Power") is a leading IC design company in the industry. The company is based on the power management, LED lighting driver, LED backlight products and battery management market, and strives to provide customers with high-quality and comprehensive IC solutions. China Resources Silicon Power adheres to the principle of "quality first" and takes the successful provision of the most complete technical services to customers as the foundation of the enterprise.
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30V 1.2A

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PT4115
30V, 1.2A Step-down High Brightness
LED Driver with 5000:1 Dimming
GENERAL DESCRIPTION
The PT4115 is a continuous conduction mode inductive
step-down converter, designed for driving single or
multiple series connected LED efficiently from a
voltage source higher than the total LED chain voltage.
The device operates from an input supply between 6V
and 30V and provides an externally adjustable output
current of up to 1.2A. Depending upon the supply
voltage and external components, the PT4115can
provide more than 30 watts of output power.
The PT4115 includes the power switch and a high-side
output current sensing circuit, which uses an external
resistor to set the nominal average output current, and a
dedicated DIM input accepts either a DC voltage or a
wide range of pulsed dimming. Applying a voltage of
0.3V or lower to the DIM pin turns the output off and
switches the device into a low current standby state.
The PT4115 is available in SOT89-5 and ESOP8
packages.
FEATURES
Simple low parts count
Wide input voltage range: 6V to 30V
Up to 1.2A output current
Single pin on/off and brightness control using DC
voltage or PWM
Up to 1MHz switching frequency
Typical 5% output current accuracy
Inherent open-circuit LED protection
High efficiency (up to 97%)
High-Side Current Sense
Hysteretic Control: No Compensation
Adjustable Constant LED Current
ESOP8 package for large output power application
RoHS compliant
APPLICATIONS
Low voltage halogen replacement LEDs
Automotive lighting
Low voltage industrial lighting
LED back-up lighting
Illuminated signs
SELV lighting
LCD TV backlighting
ORDERING INFORMATION
PACKAGE
SOT89-5
ESOP8
Note:
xxxxxX
Assembly Factory Code
Lot Number
TEMPERATURE
RANGE
-40
o
C to 85
o
C
-40
o
C to 85
o
C
ORDERING PART
NUMBER
PT4115B89E:A type
PT4115B89E-B:B type
PT4115BSOH:A type
PT4115BSOH-B:B type
TRANSPORT
MEDIA
Tape and Reel
1000 units
Tape and Reel
2500 units
MARKING
PT4115
xxxxxX
PT4115
xxxxxX
TYPICAL APPLICATION CIRCUIT
V
IN
DC6-30V
R
S
0.13Ω
LED
3W
L
68uH
D
C
IN
AC12-18V
100uF
VIN
CSN
SW
DIM
PT4115
GND
China Resources Powtech (Shanghai) Limited
PT4115_DS Rev EN_2.9
WWW.CRPOWTECH.COM
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