EC6585 E-CMOS | Alldatasheet
Document overview
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Technical content
Features
2.5V to 4.5V Input Supply Positive Output Voltage Range 4.5V to 6V Negative Output Voltage Range -4.5V to -6V Support x2 Positive Voltage Charge Pump Negative Voltage Charge Pump Follow x(-1) Positive Output Voltage Up to 90% power conversion Efficiency Up to 100mA output current 50mA Output Current Capability @VIN=2.8V 80mA Output Current Capability @VIN=3.3V 100mA Output Current Capability @VIN=3.7V Build-in Soft-Start to Reduce Inrush Current Cycle by Cycle Input Current Limit Protection Small 12-pin 2.4mm*1.5mm*0.45mm TDFN Package RoHS Compliant and Halogen Free
Applications
Smart Phone TFT LCD Bias Power Supply Tablet TFT LCD Bias Power Supply Car Navigation Display Portable equipment Pin Assignments
EC6585 2 Channel Charge Pump Supply for TFT-LCD PIN DESCRIPTION
Ordering Information
Pin Name PIN No. Description C3P 1 Positive of the charge transfer capacitor 3. VSP 2 Positive output voltage. Connect a capacitor to GND. C1P 3 Positive of the charge transfer capacitor 1. C1N 4 Negative of the charge transfer capacitor 1. GND 5 Ground pin. EN 6 Enable pin. Active high. TE 7 Control pin. Connect to ground if not used VIN 8 Input supply pin. C2N 9 Negative of the charge transfer capacitor 2. C2P 10 Positive of the charge transfer capacitor 2. VSN 11 Negative output voltage. Connect a capacitor to GND. C3N 12 Negative of the charge transfer capacitor 3. Thermal Pad - Exposed pad. Connect to ground or left floating. Part Number Package Marking Marking Information EC6585NNF1R TDFN 12L 6585X LLLLL 1. X：Internal Code 2. LLLLL：Date Code
EC6585 2 Channel Charge Pump Supply for TFT-LCD Function Block Diagram
EC6585 2 Channel Charge Pump Supply for TFT-LCD TYPICAL APPLICATION DIAGRAM
EC6585 2 Channel Charge Pump Supply for TFT-LCD Absolute Maximum Ratings Note1: All voltages are referenced to ground with GND pins grounded. Note2: “ABSOLUTE MAXIMUM RATINGS” indicate limits beyond which permanent damage to the device may occur. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under "Recommended Operating Conditions" is not implied. For guaranteed specifications and test conditions, see the “ELECTRICAL SPECIFICATIONS”. RECOMMENDED OPERATION CONDITIONS
Electrical Characteristics
(VIN=2.8V, TA=25° C, unless otherwise specified) Input Supply Voltage, VIN -0.3V to 6.5V Control Signals Input Voltage, EN, TE -0.3V to 6.5V Positive Output Voltage, VSP +0.3V to 6.5V Negative Output Voltage, VSN -0.3V to -6.5V Storage Temperature Range -55°C to 150°C Lead temperature (soldering, 10s maximum) 260°C ESD, Human body mode 2kV ESD, Machine mode 200V Supply Input Voltage, VIN 2.5V to 3.7V Control Signals Input Voltage Range 1.4V to 3.7V Junction temperature range -40°C to 125°C Ambient temperature range -40°C to 85°C Parameter Symbol Test Conditions Min Typ Max Units Input Supply Input Supply Voltage VIN 2.5 2.8 4.5 V VIN Quiescent current IQ EN=TE=Low 1 uA EN or TE = High 3 mA Supply Current IIN 150 mA Output Voltage Positive Output Voltage VSP VIN=2.8V,loading=0mA~50mA 4.5 6.0 V Negative Output Voltage VSN VIN=2.8V,loading=0mA~50mA -6.0 -4.5 V Positive Output Current I_VSP VIN=2.8V 50 mA VIN=3.3V 80 Negative Output Current I_VSN VIN=2.8V 50 mA VIN=3.3V 80 Control Signal & Protection EN, TE Input Low Voltage VIL 0.2x VIN V EN, TE Input High Voltage VIH 1.4 V Soft-Start Period TSS 1 ms Input Current Limit ILIM 1 A
EC6585 2 Channel Charge Pump Supply for TFT-LCD Typical Operation Characteristics
EC6585 2 Channel Charge Pump Supply for TFT-LCD POWER SEQUENCE (1)Internal Clock Mode (2)External Clock Mode
EC6585 2 Channel Charge Pump Supply for TFT-LCD
Package Information
Notes: 1) All dimensions are in millimeters. DIMENSION MIN (mm) TYP(mm) MAX (mm) A 0.40 0.45 0.50 A1 0.00 0.025 0.05 A3 0.152 REF b 0.15 0.20 0.25 D 2.40 BSC D2 1.70 1.80 1.90 E 1.50 BSC E2 0.40 0.50 0.60 e 0.40 BSC L 0.20 0.25 0.30