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EV3398A-S-00A

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4-String, 350mA, White LED Driver Evaluation Board

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$100.00 /unit

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Datasheet (EN)

Product Description

The EV3398A-S-00A is an evaluation board for the MP3398A, a step-up converter designed for liquid-crystal displays that employ an array of LEDs as the light source. It can drive up to four strings of LEDs in parallel with a 350mA/string maximum current. The MP3398A uses current-mode, fixed switching frequency architecture. The frequency is programmable by an external frequency-setting resistor. The device drives an external MOSFET to boost up the output voltage from a 5V to 28V input supply. It regulates the current in each LED string to the programmed value set by an external current-setting resistor.

The MP3398A can support both analog and PWM dimming independently to meet the special dimming mode request. In addition, rich protection modes are integrated, including OCP, OTP, UVP, OVP, LED short/open protection, and inductor/diode short protection.

The MP3398A is available in SOIC-16, TSSOP-16, and SOIC-20 packages.

Product Features

4-String, Max 350mA/String at 10% DPWM
5V to 28V Input Voltage Range
2.5% Current Matching Accuracy Between Strings
Programmable Switching Frequency
PWM and Analog Dimming Mode
Cascading Capability with a Single Power Source
LED Open and Short LED Protection
Programmable Over-Voltage Protection
Recoverable Thermal Shutdown Protection
Over-Current Protection
Inductor/Diode Short Protection
Under-Voltage Lockout
Available in SOIC-16, TSSOP-16, and SOIC-20 Packages

Parametrics

5V-28Vin, 4-Channel, 350mA/ch WLED Boost Controller with Separate PDIM and ADIM Pins

The MP3398A is a step-up controller with 4 current channels, which is designed to drive WLED arrays for large-size LCD-panel backlighting applications. It is flexible to expand the number of LED channels by two or more ICs in parallel sharing a single inductive power source. The MP3398A uses peak-current mode with fixed switching frequency. The frequency is programmable by an external setting resistor. The MP3398A drives an external MOSFET to boost up the output voltage from a 5V to 28V input supply. It regulates the current in each LED string to the value set by an external current-setting resistor. The MP3398A applies 4 internal current sources for current balance. The current matching can achieve 2.5% regulation accuracy between strings. Its low regulation voltage on LED current sources reduces power loss. The MP3398A can support both analog and PWM dimming independently to meet the different dimming-mode request. In addition, rich protection modes are also integrated including OCP, OTP, UVP, OVP, LED short/open protection, inductor/diode short protection. The MP3398A is available in SOIC16, TSSOP16-EP and SOIC20 packages.

4-Channel Boost WLED Controller with OCP Latch Off Protection

The MP3398B is a step-up controller with 4 current channels, which is designed to drive WLED arrays for large-size LCD-panel backlighting applications. It is flexible to expand the number of LED channels by two or more ICs in parallel sharing a single inductive power source. The MP3398B uses peak-current mode with fixed switching frequency. The frequency is programmable by an external setting resistor. The MP3398B drives an external MOSFET to boost up the output voltage from a 5V to 28V input supply. It regulates the current in each LED string to the value set by an external current-setting resistor. The MP3398B applies 4 internal current sources for current balance. The current matching can achieve 2.5% regulation accuracy between strings. Its low regulation voltage on LED current sources reduces power loss. The MP3398B can support both analog and PWM dimming independently to meet the different dimming-mode request. In addition, rich protection modes are also integrated including OCP, OTP, UVP, OVP, LED short/open protection, inductor/diode short protection. The MP3398B is available in a TSSOP16-EP package.

4-String, Max 350mA/String, Step-Up, White LED Controller with Analog and PWM Dimming

The MP3398D is a step-up controller with four current channels designed to drive WLED arrays for large LCD panel backlighting applications. The MP3398D allows for flexible expansion of the number of LED channels by two or more ICs in parallel sharing a single inductive power source. The MP3398D employs peak-current mode with a fixed switching frequency. The frequency is programmable by an external setting resistor. The MP3398D drives an external MOSFET to boost up the output voltage from a 5V to 28V input supply and can regulate the current in each LED string to the value set by an external current-setting resistor. The MP3398D applies four internal current sources for current balancing. The current matching can achieve 2.5% regulation accuracy between strings. The low regulation voltage on the LED current sources reduces power loss. The MP3398D can support both analog and PWM dimming independently to meet different dimming mode requests. Full protection features include over-current protection (OCP), over-temperature protection (OTP), under-voltage protection (UVP), over-voltage protection (OVP), LED short/open protection, and inductor/diode short protection. The MP3398D is available in SOIC16 and SOIC20 packages.

4.5V-28Vin, 4-Channel WLED Boost Controller, Lower Vin of MP3398A for USB Powered Application

The MP3398L is a step-up controller with 4 current channels, which is designed to drive WLED arrays for large-size LCD-panel backlighting applications. It is flexible to expand the number of LED channels by two or more ICs in parallel sharing a single inductive power source. The MP3398L uses peak-current mode with fixed switching frequency. The frequency is programmable by an external setting resistor. The MP3398L drives an external MOSFET to boost up the output voltage from a 5V to 28V input supply. It regulates the current in each LED string to the value set by an external current-setting resistor. The MP3398L applies 4 internal current sources for current balance. The current matching can achieve 2.5% regulation accuracy between strings. Its low regulation voltage on LED current sources reduces power loss. The MP3398L can support both analog and PWM dimming independently to meet the different dimming-mode request. In addition, rich protection modes are also integrated including OCP, OTP, UVP, OVP, LED short/open protection, inductor/diode short protection. The MP3398L is available in SOIC16 package.