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PDF L5107 Data sheet ( Hoja de datos )
| Número de pieza | L5107 | |
| Descripción | CONSTANT CUTTENT BOOST CONTROLLER | |
| Fabricantes | Unisonic Technologies | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de L5107 (archivo pdf) en la parte inferior de esta página. Total 8 Páginas | ||
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UNISONIC TECHNOLOGIES CO., LTD
L5107
Preliminary
LINEAR INTEGRATED CIRCUIT
CONSTANT CUTTENT BOOST
CONTROLLER FOR DRIVING
HIGH POWER LEDS
DESCRIPTION
The UTC L5107 is a high powered PWM boost converter
optimized for constant current applications such as driving one or
more strings of high power LEDs. The powerful drive circuitry can
deliver up to 70W to the LED system.
The output current can be set by an external resistor
connected the IADJ pin and GND. This average current can be
reduced by applying a PWM signal to the PWMD pin. The UTC
L5107 offers a dither feature to reduce EMI.
The UTC L5107 has a large input voltage range from 6V to
45V and the switching frequency can be set by an external
resistor between 100kHz and 1MHz for diffident LED systems. To
protect the device over voltage protection circuit and under
voltage lock-out circuit have been incorporated as well as thermal
shutdown circuit.
FEATURES
* Input voltage range: 6V~45V
* Feedback voltage: 0.25V±3%
* Maximum out power of 70W
* Programmable switching frequency and LED drive current
* Ultra low EMI via dithering on the UTC L5107
* Single pin for PWM dimming
* Protection circuit:
Over voltage protection circuit
Over temperature protection circuit
Under-voltage Lock-out circuit
* Accurate over the -40~125°C temperature range
ORDERING INFORMATION
Note:
Ordering Number
L5107G-P16-R
xx: Output Voltage, refer to Marking Information.
Package
TSSOP-16
Packing
Tape Reel
MARKING
www.unisonic.com.tw
Copyright © 2015 Unisonic Technologies Co., Ltd
1 of 8
QW-R125-026.b
1 page  
L5107
Preliminary
LINEAR INTEGRATED CIRCUIT
ELECTRICAL CHARACTERISTICS (Note 1)
(VIN=12V, VEN=3.6V, L=47µH, C=4.7µF, TJ=25°C, Bold values indicate -40°C≤TJ≤+125°C, unless noted)
PARAMETER
SYMBOL
TEST CONDITIONS
MIN TYP MAX
Supply Voltage Range
Under Voltage Lockout
VIN
UVLO
6 45
3.5 4.9 5.5
Quiescent Current
IVIN
VFB>275mV (to ensure device is not
switching)
3.2 10
Shutdown Current
ISD VEN=0V
30
Feedback Voltage (at IADJ)
VIADJ
Room temperature (3%)
-40°C≤TJ≤+125°C (5%)
242.5 250 257.5
237.5 250 262.5
Feedback Input Current
Line Regulation
IADJ VFB=250mV
SV VIN=12V~24V
1.2 3
2
Load Regulation
Maximum Duty Cycle
SI
DMAX
VOUT to 2×VOUT
2
88
Enable Threshold
VEN
Turn ON
Turn OFF
1.15 1.5
0.4 1.1
Enable Pin Current
PWMD Threshold
IEN
VPWM
VEN=3.3V, REN=100kΩ
Turn ON
Turn OFF
17 30
0.75 1.5
0.4 0.7
PWMD Frequency Range
fPWMD L=47μH, C=4.7μF (Note 2)
0 500
Programmable Oscillator
Frequency
Low EMI
REREQ=82.5kΩ
109
fSW REREQ=21kΩ
360 400 440
REREQ=8.25kΩ
950
FDITHER Frequency dither shift from nominal
±12
Current Limit Threshold Voltage
ISENSE Peak Current Out
VSENS
ISENSE
RSENSE=390Ω
RSENSE=390Ω
0.315 0.45 0.585
250
Over Voltage Protection
Driver Impedance
VOVP
RON
Sink
Source
1.203 1.24 1.277
2.4 3.5
2
Driver Voltage High
VDRH
VIN=12V
7 9 11
Over-Temperature Threshold
Shutdown
TJ
150
Thermal Shutdown
TH Hysteresis
Notes: 1. Specification for packaged product only.
5
2. Guaranteed by design.
UNIT
V
V
mA
μA
mV
mV
μA
%
%
%
V
μA
V
Hz
kHz
%
V
μA
V
Ω
V
°C
°C
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
5 of 8
QW-R125-026.b
5 Page | ||
| Páginas | Total 8 Páginas | |
| PDF Descargar | [ Datasheet L5107.PDF ] | |
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