UC3501G-T92-B [UTC]
HIGH EFFICIENT, LOW COST FLASHLIGHT LED DRIVE;
| 型号： | UC3501G-T92-B |
| 厂家： | 
Unisonic Technologies |
| 描述： | HIGH EFFICIENT, LOW COST FLASHLIGHT LED DRIVE |
| 文件： | 总4页 (文件大小：145K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
UNISONIC TECHNOLOGIES CO., LTD
UC3501
Preliminary
CMOS IC
HIGH EFFICIENT, LOW COST
FLASHLIGHT LED DRIVE
DESCRIPTION
UTC UC3501 is Flashlight ASIC chip, Using LSI technology,
Specifically designed for single dry battery, Plus 1 of inductors,
May constitute a drive circuit for LED flashlights.
FEATURES
* High efficiency:85%~90%
* Low cost
* Simply add-ins one inductor
ORDERING INFORMATION
Order Number
Pin Assignment
2
Package
Packing
Lead Free
Halogen Free
1
3
UC3501L-T92-B
UC3501L-T92-K
UC3501G-T92-B
UC3501G-T92-K
TO-92
TO-92
O
O
D
D
G
G
Tape Box
Bulk
Note: Pin Assignment: G: GND
D: VDD
O: OUT
MARKING INFORMATION
PACKAGE
MARKING
UTC
L: Lead Free
G: Halogen Free
UC3501
TO-92
Data Code
1
www.unisonic.com.tw
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Copyright © 2014 Unisonic Technologies Co., Ltd
QW-R502-A63.b
UC3501
Preliminary
CMOS IC
BLOCK DIAGRAM
VDD
VOUT
OSCILLATOR
ERROR
AMPLIFIER
VFM
CONTROL
VREF
VIX LIMITER
GND
UNISONIC TECHNOLOGIES CO., LTD
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UC3501
Preliminary
CMOS IC
ABSOLUTE MAXIMUM RATING
PARAMETER
SYMBOL
VIN
RATINGS
6
UNIT
V
Input Voltage
Output Current
IOUT
150
mA
°C
Operating Junction Temperature
Storage Temperature
TJ
-40~85
-55~150
TSTG
°C
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.
ELECTRICAL CHARACTERISTICS (TA=25°C)
PARAMETER
SYMBOL
VDD
TEST CONDITIONS MIN
0.9
TYP MAX UNIT
Supply Voltage
Start Voltage
5.0
V
V
VSTART
IOUT
0.9
100
100
85
Output Current
mA
KHz
%
Oscillator Frequency
Efficiency
FOSC
η
UNISONIC TECHNOLOGIES CO., LTD
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UC3501
Preliminary
CMOS IC
TYPICAL APPLICATION CIRCUIT
47µH
UTC
UC3501
2
1
VIN
VOUT
L1
LED
L2
LED
L3
LED
GND
3
R1
10
R2
10
R3
10
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.
UNISONIC TECHNOLOGIES CO., LTD
4 of 4
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