FP9928A

Integrated Multi-Channel DC-DC Converters for Panels; ● High Efficiency\n● Low Power Consumption\n● 2.7V to 5.5V Input Supply Voltage\n● I2C Serial Interface\n● Over-Temperature Protection\nDC-DC Converters\n● Fast Transient Response to Pulsed Load\n● Built-In 20V, 800mA, 1Ω MOSFET\n● Built-In Soft-Start\n● Over-Current Protection\nLDO Regulator\n● Built-In ±15V LDO with ±0.15V accuracy for Source Driver Supply\nAdjustable VCOM Driver for Accurate Panel-Backplane Biasing\n● -0.6V to -5V\n● 8-bit Control\nRegulated Charge Pumps\n● Charge Pump for VGH Regulation\n● Charge Pump for VGL Regulation\n● TQFN-24 (4mm×4mm) Package\n● RoHS Compliant\nThermistor Monitoring\n● -10°C to +85°C Temperature Range\n● ±1°C Accuracy from 0°C to 50°C;

The FP9928A offers a compact power supply solution to provide all voltages required by EPD panel. The FP9928A includes 2 high performance PFM DC-DC converters, one is for positive voltage and the other is for negative voltage used by EPD drivers, a VCOM buffer (unity-gain OPA), a positive charge pump and a negative charge pump to provide adjustable regulated output voltages. The converters provide the regulated positive and negative supply voltage for the panel source driver ICs. The positive charge pump controller provides regulated EPD gate-on voltage. The negative charge pump controller provides regulated EPD gate-off voltage. Accurate back-plane biasing is provided by a linear amplifier and can be adjusted either by an external resistor or the I2C interface. The VCOM driver can source or sink current depending on panel condition. For automatic VCOM adjustment in production line, VCOM can be set from -0.6V to -5V with 8 bit control through the serial interface. The FP9928A provides precise temperature measurement function to monitor the panel temperature during operation. The FP9928A automatically updates the temperature every 60s.

FP9928A

Integrated Multi-Channel DC-DC Converters for Panels

FP9928AWQC

Integrated Multi-Channel DC-DC Converters for Panels

FP9928AWQCTR

Integrated Multi-Channel DC-DC Converters for Panels

GAPM9928

MinisizeofDiscretesemiconductorelements

GTS9928E

N-CHANNELENHANCEMENTMODEPOWERMOSFET

Description TheGTS9928Eprovidesthedesignerwiththebestcombinationoffastswitching,ruggedizeddevicedesign,ultralowon-resistanceandcost-effectiveness. Features *Lowon-resistance *Capableof2.5Vgatedrive *OptimalDC/DCbatteryapplication

HM9928

LEDEmergencyLightingdriver

MAX9928

-0.1Vto28VInputRange,Micropower,Uni-/Bidirectional,Current-SenseAmplifiers

GeneralDescription TheMAX9928/MAX9929low-cost,uni-/bidirectional,high-side,current-senseamplifiersareidealformonitoringbatterychargeanddischargecurrentsinnotebooks,cellphones,andotherportableequipment.Thesedevicesfeatureawide-0.1Vto+28Vinputcommon-modevoltage

MAX9928

FullyAssembledandTested

MAX9928EVKIT

FullyAssembledandTested