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MBI1802, MBI1802GD, MBI1804

Table of contents:
Info of MBI1802
Info of MBI1802GD
Info of MBI1804

MBI1802, MBI1802GD, MBI1804 Selling Leads, Datasheet

MFG:MACROBLOCK Package Cooled:DIP/SOP D/C:05+

MBI1802, MBI1802GD, MBI1804 Datasheet download

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Part Number: MBI1802

MFG: MACROBLOCK

Package Cooled: DIP/SOP

D/C: 05+

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MBI1802 General Description

The MBI1802 is designed as one member of the all-ways-OnTM high-power LED driver that can be used in automotive Interior Lighting and channel letter and decoration lighting. This device provides users 16-channel constant current ports to match LEDs with equal current and is designed to operate with VDS ranging from 0.4V to 1.0V considering the package power dissipating limits.

Features of the MBI1802 are:(1)4 constant-current output channels; (2)constant output current invariant to load voltage change; (3)constant output current range: 5-90 mA; (4)thermal protection and report; (5)output current adjusted through an external resistor; (6)schmitt trigger input; (7)5V supply voltage; (8)package type: SOP8 with thermal pad;(9)fast response of output current,OE (min.): 10s;(10)maximum output constant current:360 mA.

The absolute maximum ratings of the MBI1802 can be summarized as:(1)supply voltage:0 to 7.0 V;(2)input voltage:-0.4 to VDD+0.4 V;(3)output current:360 mA;(4)output voltage:-0.5 to +17.0 V;(5)GND terminal current:1440 mA;(6)power dissipation (on PCB, Ta=25°C):0.8 W;(7)thermal resistance (under good thermal system):33.39°C/W;(8)thermal resistance (on PCB, Ta=25°C):125°C/W;(9)operating temperature:-40 to +85°C;(10)storage temperature:-55 to +150 °C. If you want to know more information such as the electrical characteristics about the MBI1802, please download the datasheet in www.seekic.com or www.chinaicmart.com.

MBI1804 General Description

MBI1804 is an instant On/Off LED driver for high power LED applications and exploits PrecisionDrive™ and All-Ways-On™ technology to enhance its output characteristics. At MBI1804 output stage, four regulated current ports are designed to provide uniform and constant current sinks for driving LEDs within a large range of VF variations.

With All-Ways-On™, MBI1804 provides users easily a consistent current source in their system design. Users may adjust the output current from 20 mA up to 360 mA through an external resistor, Rext, which gives users flexibility in controlling the light intensity of LEDs. In addition, users can precisely adjust LED brightness from 0% to 100% via output control with Pulse Width Modulation. MBI1804 also guarantees LED can be cascaded to maximum 17V at the output ports.

Additionally, to ensure the system reliability, MBI1804 is provided in the SOP8 with thermal pad for dramatically increased power dissipation capability. As a result, a large amount of current can be handled safely in one package.

MBI1804 Maximum Ratings

Characteristic		Symbol	Rating	Unit
Supply Voltage		V_DD	0~7.0	V
Output Voltage		V_IN	-0.4~V_DD+ 0.4	V
Output Current		I_OUT	360*	mA
Input Voltage		V_DS	-0.5~+17.0	V
GND Terminal Current		I_GND	1440	mA
Power Dissipation* (On PCB, Ta=25°C)	SOP8	P_D	0.8	W
Thermal Resistance* (Under good thermal system)		R_th(j-a)	33.39**
Thermal Resistance* (On PCB, Ta=25°C)		R_th(j-a)	125	°C/W
Operating Temperature		T_opr	-40~+85	°C
Storage Temperature		T_stg	-55~+150	°C

MBI1804 Features

`4 constant-current output channels
`Constant output current invariant to load voltage change
` Maximum output constant current: 360 mA
`Excellent output current accuracy:
between channels: <±3% (max.), and
between ICs: <±6% (max.)
` Output current adjusted through an external resistor
` Fast response of output current, OE(min.): 10s
`Schmitt trigger input
`5V supply voltage
` Package type: SOP8 with thermal pad

MBI1804 Typical Application

· High-Flux LED Lighting
· Automotive Interior Lighting
· LCD Backlight
· Photocopier
· Scanner

MBI1804 Connection Diagram

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