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参数资料
| 型号： | MIC3232YMM TR |
| 厂商： | Micrel Inc |
| 文件页数： | 1/19页 |
| 文件大小： | 0K |
| 描述： | IC LED DRVR HP CONS CURR 10MSOP |
| 标准包装： | 2,500 |
| 恒定电流： | 是 |
| 拓扑： | PWM，升压（升压） |
| 输出数： | 1 |
| 内部驱动器： | 是 |
| 类型 - 主要： | 通用 |
| 频率： | 400kHz |
| 电源电压： | 6 V ~ 45 V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 10-TFSOP，10-MSOP（0.118"，3.00mm 宽） |
| 供应商设备封装： | 10-MSOP |
| 包装： | 带卷 (TR) |
| 工作温度： | -40°C ~ 125°C |
MIC3230/1/2
Constant Current Boost Controller for
Driving High Power LEDs
General Description
The MIC3230/1/2 are constant current boost switching
controllers specifically designed to power one or more
strings of high power LEDs. The MIC3230/1/2 have an
input voltage range from 6V to 45V and are ideal for a
Features
Bringing the Power to Light?
variety of solid state lighting applications.
The MIC3230/1/2 utilizes an external power device which
offers a cost conscious solution for high power LED
applications. The powerful drive circuitry can deliver up to
70W to the LED system. Power consumption has been
minimized through the implementation of a 250mV
feedback voltage reference providing an accuracy of ±3%.
The MIC323x family is dimmable via a pulse width
modulated (PWM) input signal and also features an enable
pin for low power shutdown.
Multiple MIC3230 ICs can be synchronized to a common
operating frequency. The clocks of these synchronized
devices can be used together in order to help reduce noise
and errors in a system.
An external resistor sets the adjustable switching
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6V to 45V input supply range
Capable of driving up to 70W
Ultra low EMI via dithering on the MIC3231
Programmable LED drive current
Feedback voltage = 250mV ±3%
Programmable switching frequency (MIC3230/1) or
400kHz fixed frequency operation (MIC3232)
PWM Dimming and separate enable shutdown
Frequency synchronization with other MIC3230s
Protection features:
Over Voltage Protection (OVP)
Over temperature protection
Under-voltage Lock-out (UVLO)
frequency of the MIC3230/1. The switching frequency can
be between 100kHz and1MHz. Setting the switching
frequency provides the mechanism by which a design can
be optimized for efficiency (performance) and size of the
external components (cost). The MIC323x family of LED
drivers also offer the following protection features: Over
voltage protection (OVP), thermal shutdown and under-
? Packages:
VIN 1
EN 2
PWMD 3
COMP 4
IADJ 5
10 VDD
9 DRV
8 PGND
7 OVP
6 IS
VIN
EN
PWMD
COMP
IADJ
FS
1
2
3
4
5
6
EPAD
12 VDD
11 DRV
10 PGND
9 OVP
8 IS
7 SYNC/NC
N/C
VIN
EN
PWMD
COMP
IADJ
FS
AGND
1
2
3
4
5
6
7
8
EPAD
16 N/C
15 VDD
14 DRV
13 PGND
12 OVP
11 IS
10 SYNC/NC
9 N/C
12-pin MLF
voltage lock-out (UVLO).
The MIC3231 offers a dither feature to assist in the
reduction of EMI. This is particularly useful in sensitive EMI
MIC3232
10-pin MSOP
MIC3230/1
?
MIC3230/1
16-pin TSSOP
applications, and provides for a reduction or emissions by
approximately 10dB.
The MIC3232 is a 400kHz fixed frequency device offered
in a small 10-pin MSOP package. The MIC3230/1 are
? –40°C to +125°C junction temperature range
Applications
offered in both the EPAD 16-pin TSSOP package and the
12-pin 3mm × 3mm MLF ? package.
Datasheets and support documentation can be found on
Micrel’s web site at: www.micrel.com.
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Street lighting
Solid state lighting
General illumination
Architectural lighting
Constant current power supplies
Bringing the Power to Light is a trademark of Micrel, Inc.
Micro LeadFrame and MLF are registered trademarks of Amkor Technology.
Micrel Inc. ? 2180 Fortune Drive ? San Jose, CA 95131 ? USA ? tel +1 (408) 944-0800 ? fax + 1 (408) 474-1000 ? http://www.micrel.com
March 2011
M9999-030311-D
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| MIC3263YML-TR | 功能描述:LED 驱动器 IC 6 输出 DC DC 稳压器 升压（升压） PWM 调光 30mA 24-MLF?（4x4） 制造商:microchip technology 系列:- 包装:剪切带（CT） 零件状态:停产 类型:DC DC 稳压器 拓扑:升压（升压） 内部开关:是 输出数:6 电压 - 供电（最低）:6V 电压 -?供电（最高）:40V 电压 - 输出:- 电流 - 输出/通道:30mA 频率:1.2MHz 调光:PWM 应用:背光 工作温度:-40°C ~ 125°C （TJ） 安装类型:表面贴装 封装/外壳:24-VFQFN 裸露焊盘，24-MLF? 供应商器件封装:24-MLF?（4x4） 标准包装:1 |
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