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Part Number: MAX864
Description: The MAX864 CMOS, charge-pump, DC-DC voltage converter produces a positive and a negative output from a single positive ...
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MAX864
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DataSheet
General Description
MAX864 General Description
The MAX864 CMOS, charge-pump, DC-DC voltage converter produces a positive and a negative output from a single positive input, and requires only four capacitors. The charge pump first doubles the input voltage, then inverts the doubled voltage. The input voltage ranges from +1.75V to +6.0V.
The internal oscillator can be pin-programmed from 7kHz to 185kHz, allowing the quiescent current, capacitor size, and switching frequency to be optimized. The55½ output impedance permits useful output currents up to 20mA. The MAX864 also has a 1µA logic-controlledshutdown.
The MAX864 comes in a 16-pin QSOP package that uses the same board area as a standard 8-pin SOIC.For more space-sensitive applications, the MAX865 is available in an 8-pin µMAX package, which uses half the board area of the MAX864.
MAX864 Maximum Ratings
V+ to GND ..............................................................-0.3V to +12V
SHDN, FC0, FC1 to GND .............................-0.3V to (V+ + 0.3V)
IN to GND ..............................................................-0.3V to +6.2V
V- to GND ...............................................................+0.3V to -12V
V- Output Current .............................................................100mA
V- Short Circuit to GND ..............................................IndefiniteOperating Temperature Range
MAX864EEE...................................................-40°C to +85°C Continuous Power Dissipation (TA = +70°C)
QSOP (derate 8.70mW/°C above +70°C).....................696mW
Storage Temperature Range ............................ -65°C to +160°C
Lead Temperature (soldering, 10sec) .............................+300°C
SHDN, FC0, FC1 to GND .............................-0.3V to (V+ + 0.3V)
IN to GND ..............................................................-0.3V to +6.2V
V- to GND ...............................................................+0.3V to -12V
V- Output Current .............................................................100mA
V- Short Circuit to GND ..............................................IndefiniteOperating Temperature Range
MAX864EEE...................................................-40°C to +85°C Continuous Power Dissipation (TA = +70°C)
QSOP (derate 8.70mW/°C above +70°C).....................696mW
Storage Temperature Range ............................ -65°C to +160°C
Lead Temperature (soldering, 10sec) .............................+300°C
MAX864 Features
Requires Only Four Capacitors
Dual Outputs (Positive and Negative)
Low Input Voltages: +1.75V to +6.0V
1µA Logic-Controlled Shutdown
Selectable Frequencies Allow Optimization of Capacitor Size and Supply Current
Dual Outputs (Positive and Negative)
Low Input Voltages: +1.75V to +6.0V
1µA Logic-Controlled Shutdown
Selectable Frequencies Allow Optimization of Capacitor Size and Supply Current
MAX864 Typical Application
Low-Voltage GaAsFET Bias in Wireless Handsets
VCO and GaAsFET Supply
Split Supply from 2 to 4 Ni Cells or 1 Li+ Cell
Low-Cost Split Supply for Low-Voltage
Data-Acquisition Systems
Split Supply for Analog Circuitry
LCD Panels
VCO and GaAsFET Supply
Split Supply from 2 to 4 Ni Cells or 1 Li+ Cell
Low-Cost Split Supply for Low-Voltage
Data-Acquisition Systems
Split Supply for Analog Circuitry
LCD Panels
MAX864 Connection Diagram
MAX864
PDF/DataSheet Download
- Datasheet: MAX864
- File Size: 125307 KB
- Manufacturer: Maixm
- Click here to Download
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