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R1293 Series
Multi Power Supply IC with Amplifier for LCD
The R1293 Series are multi power supply ICs dedicated for mid-size TFT LCD panels. Each of the IC consists of a PWM control step-up DC/DC converter, an LDO regulator, a VCOM amplifier and six GAMMA amplifiers. The output noise can be reduced by SEL pin. (SEL pin "H": normal mode, SEL pin "L": low noise mode.) The MOSFET for step-up DC/DC converter is built-in and, low power operation is realized by standby mode. The package is 4mm square DFN(PLP)0404-32.
Specs & Datasheets
| Consumer | |
|---|---|
| Input Voltage Range | DC/DC: 2.2 V to 5.5 V (6.5 V) LDO: 2.2 V to 5.5 V (6.5 V) AMP: 5.0 V to 16 V (24 V) |
| Operating Temperature Range | -40°C to 85°C (125°C) |
| Supply Current | Typ. 300 µA |
| Standby Current | Typ. 60 µA |
| Output Voltage Range | DC/DC: Max. 16 V (Externally Adjustable) LDO: 1.8 V to 2.5 V (Internally Fixed) |
| Output Voltage Accuracy | LDO: ±1.0% |
| Feedback Voltage | DC/DC: 1 V |
| Feedback Voltage Accuracy | DC/DC: ±15 mV |
| Output Current | LDO: 350 mA |
| Oscillator Frequency | Typ. 300 kHz to1 MHz (Externally Adjustable) |
| Maximum Duty Cycle | Typ. 90% (Externally Adjustable) |
| Package | QFN(PLP)0404-32 |
| Buffer Amplifier Input Voltage Range | VCOM: 1.5 V to VBUFF -1.5 V GAMMA: 0 V to VBUFF |
| Buffer Amplifier Output Current | VCOM: -100 mA to 100 mA GAMMA: -10 mA to 10 mA |
Protections / Functions
| TSD | ILX | OCP | OVP | UVLO | OVLO | Reverse | Shutdown | Soft Start | SSCG | PGOOD | Auto Discharge | Anti-ringing | Sequencing | Max Duty | Ext. Phase | LED Adjust |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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Technical Documents
Typical Application
For external parts, please refer to the datasheet.
Quality & Packages
| Product Name | Compatibility | Package | Marking | Reliability |
|---|---|---|---|---|
| R1293Kxx1A-E2 |
|
QFN(PLP)0404-32 | R1293K | R1293K |
C
Refer to the datasheets for the details on the product.
The package file includes package dimensions, taping specifications, taping reels dimensions, power dissipations, and recommended land pattern.
Please contact us or our distributors for unpublished reliability information.
Sample / Buy
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Please contact your local distributors for any sales-related inquiry such as price, stock, delivery, etc.
Functional Description
| TSD | Thermal Shutdown Function |
|---|---|
| ILX | LX Current Limit Function |
| OCP | Overcurrent Protection |
| OVP | Overvoltage Protection |
| UVLO | Undervoltage Lockout Protection |
| OVLO | Overvoltage Lockout Protection |
| Reverse | Reverse Current Protection Circuit |
| Shutdown | Shutdown Function |
| Soft Start | Soft Start Function |
| SSCG | Spread Spectrum Clock Generator Function |
| PGOOD | Power Good Output |
| Auto Discharge | Auto Discharge Function |
| Anti-ringing | Anti-ringing Switch Function |
| Sequencing | Start-up Sequencing Control |
| Max Duty | Maximum Duty Cycle |
| Ext. Phase | Externally Adjustable Phase Compensation |
| LED Adjust | LED High-speed Dimming Control |