MPQ5613C

MPQ5613C

Automotive TFT LCD Bias Driver with I²C, AEC-Q100 Qualified

Description

The MPQ5613C is an integrated power supply for automotive TFT LCD bias drivers. The device integrates a configurable, fixed-frequency boost converter (VDDP), a synchronous buck-boost inverter (VDDN), an adjustable positive charge pump output (VGH), and an adjustable, negative charge pump output (VGL) for the gate voltages. The MPQ5613C is designed to power TFT LCD panels from a regulated 3.3V or 5V supply, or the 12V battery directly.

VDDP can output a maximum 21.8V voltage, VDDN can output a minimum -16.6V negative voltage, VGH can output a maximum 43.2V voltage, and VGL can output a minimum -15.9V negative voltage.

The I²C interface and configurable power-on sequence for VDDP, VDDN, VGL, and VGH make the IC suitable for different applications. An internal soft-start (SS) function prevents input overload at start-up. The cycle-by-cycle current limit protection of SWP and SWN reduces component stress.

Rich protections are designed to guarantee safe operation of the device. Protection modes include under-voltage protection (UVP) for all outputs, cycle-by-cycle current limit protection for SWP and SWN, output current-limit protection for VDDP, input voltage (V_IN) under-voltage lockout (UVLO), and over-temperature protection (OTP).

The MPQ5613C is available in a tiny QFN-28 (4mmx5mm) package. It is available in AEC-Q100 Grade 1.

Features & Benefits

2.7 to 12V Operating Input Voltage (V_IN) Range
2A Current Limit for Boost Converter
2.5A Current Limit for Sync-Buck-Boost Inverter
250mΩ Power MOSFET for Boost
200mΩ/250mΩ Power MOSFET for Sync-Buck-Boost
I²C Interface and 1-Time One-Time Programmable Memory for Some Registers
Configurable Switching Frequency (f_SW), Up to 3MHz
Frequency Spread Spectrum (FSS) for Improved EMI
Frequency Synchronization and Interleaved (180°) Buck-Boost and Boost Control for Improved EMI
Input and Output Disconnection
Configurable VDDP: 2.7V to 21.8V
Configurable VDDN: -0.7V to -16.6V
VDDP and VDDN Support Maximum 500mA
Continuous Load Current (Limited by the Cycle-by-Cycle Current Limit Protection)
Configurable VGH: 5V to 43.2V, with 50mA Current
Configurable VGL: 0V to -15.9V, with 50mA Current
High Efficiency
Configurable Power-On/Off Sequence
V_IN Under Voltage Lockout (UVLO)
Under-Voltage Protection (UVP) for All Outputs
Cycle-by-Cycle Current Limit Protection for SWP and SWN
Output Current-Limit Protection for VDDP
Over-Temperature Protection (OTP)
Fault Flag
Available in AEC-Q100 Grade 1
Available in a QFN-28 (4mmx5mm) Package