UC4107G-S08-R [UTC]
TWO-STAGE HYSTERETIC LED DRIVER CONTROLLER;型号: | UC4107G-S08-R |
厂家: | Unisonic Technologies |
描述: | TWO-STAGE HYSTERETIC LED DRIVER CONTROLLER 驱动 |
文件: | 总4页 (文件大小:160K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
UNISONIC TECHNOLOGIES CO., LTD
UC4107
Preliminary
CMOS IC
TWO-STAGE HYSTERETIC LED
DRIVER CONTROLLER
DESCRIPTION
SOP-8
The UTC UC4107 is a two-stage controller with dual gate
drivers consist of a Boost converter and a Buck converter. The
advantage of the two-stage topology is highly compatible with
Electronic Transformer in MR16/AR111 lighting market field
applications.
The UTC UC4107 is equipped with dual output gate drivers for
external power MOSFETs, suitable for higher power applications.
HSOP-8
FEATURES
* Topology: Boost+Buck
* Input Voltage Range: 4.5V~40V
* Adjustable Peak Input Current Control
* Adjustable Boost Output Voltage
* Independent Dual Stage Function
* Adjustable LED Current
* LED Current Accuracy: ±5%
* Input Under Voltage Lockout Detection
* Thermal Shutdown Protection
ORDERING INFORMATION
Ordering Number
Package
Packing
Lead Free
Halogen Free
UC4107L-S08-R
UC4107L-SH2-R
UC4107G-S08-R
UC4107G-SH2-R
SOP-8
Tape Reel
Tape Reel
HSOP-8
MARKING
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Copyright © 2017 Unisonic Technologies Co., Ltd
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UC4107
Preliminary
CMOS IC
PIN CONFIGURATION
1
2
3
4
8
7
6
5
1
2
3
4
8
7
6
5
GATE1
CS
GATE2
GATE1
CS
GATE2
CREG
VCC
CREG
VCC
GND
OVP
GND
OVP
GND
ISN
ISN
PIN DESCRIPTION
PIN NO.
PIN NAME
GATE1
CS
DESCRIPTION
1
2
3
4
5
6
7
8
Gate Driver Output for External MOSFET Switch in the First Stage.
Current Sense Input for External MOSFET Switch.
Over Voltage Protection Sense Input.
OVP
GND
Ground.
ISN
LED Current Sense Amplifier Negative Input.
VCC
Supply Voltage Input. For good bypass, place a ceramic capacitor near the VCC pin.
Internal Regulator Output. Place an 1μF capacitor between the CREG and GND pins.
Gate Driver Output for External MOSFET Switch in the Second Stage.
CREG
GATE2
BLOCK DIAGRAM
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UC4107
Preliminary
CMOS IC
ABSOLUTE MAXIMUM RATING (TA=25°C, unless otherwise specified)
PARAMETER
SYMBOL
RATINGS
-0.3 ~ 45
-0.3 ~ 6
-1 ~ 3
UNIT
V
Supply Input Voltage, VCC to GND
CS, GATE1, GATE2, CREG, OVP to GND
VCC To ISN
V
VISN
PD
V
Power Dissipation, @ TA=25°C
Junction Temperature
0.53
W
TJ
+150
°C
°C
Storage Temperature Range
TSTG
-65 ~ +150
Note: Absolute maximum ratings are those values beyond which the device could be permanently damaged.
Absolute maximum ratings are stress ratings only and functional device operation is not implied.
RECOMMENDED OPERATING CONDITIONS
PARAMETER
SYMBOL
RATINGS
4.5 ~ +40
-40 ~ +125
-40 ~ +85
UNIT
V
Supply Input Voltage
VCC
TJ
Junction Temperature Range
Ambient Temperature Range
°C
TA
°C
THERMAL DATA
PARAMETER
Junction to Ambient
SYMBOL
RATINGS
188
UNIT
θJA
°С/W
ELECTRICAL CHARACTERISTICS
(VCC=10V, No Load, CLOAD=1nF, TA=25°C, unless otherwise specified)
PARAMETER SYMBOL TEST CONDITIONS
CREG UVLO_ON
MIN TYP MAX UNIT
VUVOL_ON CS/OVP=0V
VUVOL_OFF CS/OVP=0V
4
4.3
4.2
10
4.6
V
V
CREG UVLO_OFF
VCC Shutdown Current
ISHDN
Before Start-Up, VCC=3.5V
After Start-Up, VCC=5V, GATE1 and
GATE2 Stand Still
μA
VCC Quiescent Current
IQ
1.5
mA
Internal Reference Voltage
Internal Reference Voltage
CS Threshold Voltage
CS Pin Leakage Current
OVP High Level
VCREG
5
V
V
ICREG=20mA
4.9
VCS
ICS
215 240 265
mV
μA
V
1
VOVP_H
VOVP_L
IOVP
1.71 1.9 2.09
OVP Low Level
1.44 1.6 1.76
V
OVP Pin Leakage Current
GATE1 Duty Off-Time
UGATE1 Drive Sink
1
1.5
2
μA
μs
Ω
RUGATE1sk Sink=50mA
LGATE1 Drive Source
GATE1 Default Pull Down Resistor
ISN Threshold
RLGATE1sr Source=−50mA
1.25
90
Ω
kΩ
VISN
123.5 130 136.5 mV
ISN Hysteresis
∆VISN
10
15
1
20
%
μA
Ω
ISN Pin Leakage Current
UGATE2 Drive Sink
IISN
RUGATE2sk Sink=50mA
RLGATE2sr Source=−50mA
2
LGATE2 Drive Source
GATE2 Default Pull Down Resistor
Thermal Shutdown Temperature
Thermal Shutdown Hysteresis
1.25
90
Ω
kΩ
°C
°C
TSD
140 155 170
35
∆TSD
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UC4107
Preliminary
CMOS IC
TYPICAL APPLICATION CIRCUIT
VL
L1
22μH
D1
D4
D2
AC
12V
LED+
RSENSE
280m
D6
D3
C6
4.7μF
CIN
1μF
COUT
VN
R4
LED-
D7
VCC
ISN
L2
120μH
OVP
R5
CREG
UTC
UC4107
C3
4.7μF
M1
GATE1
CS
M2
GATE2
R6
120m
GND
UTC assumes no responsibility for equipment failures that result from using products at values that
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or
other parameters) listed in products specifications of any and all UTC products described or contained
herein. UTC products are not designed for use in life support appliances, devices or systems where
malfunction of these products can be reasonably expected to result in personal injury. Reproduction in
whole or in part is prohibited without the prior written consent of the copyright owner. The information
presented in this document does not form part of any quotation or contract, is believed to be accurate
and reliable and may be changed without notice.
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