MAX864 Ver la hoja de datos (PDF) - Maxim Integrated
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MAX864 Datasheet PDF : 12 Pages
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Dual-Output Charge Pump with Shutdown
ABSOLUTE 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 .................................................Indefinite
Operating 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
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS (Note 1)
(VIN = 5V, SHDN = VIN, circuit of Figure 1, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.)
PARAMETER
SYMBOL
MIN TYP MAX
SUPPLY
Minimum Start-Up Voltage
Maximum Supply Voltage
RLOAD = 10kΩ
RLOAD = 10kΩ
TA = +25°C
TA = TMIN to TMAX
1.75 1.25
2.00
6.0
FC1 = FC0 = GND, f = 7kHz
0.6
1.0
Supply Current
FC1 = GND, FC0 = IN, f = 33kHz
FC1 = IN, FC0 = GND, f = 100kHz
2.4
3.65
7
11
FC1 = FC0 = IN, f = 185kHz
12
18
Shutdown Current
FC1 = FC0 = IN or GND, SHDN = GND
0.1
1
FC1 = FC0 = GND
5
7
10
Oscillator Frequency
FC1 = GND, FC0 = IN
FC1 = IN, FC0 = GND
24
33
48
70
100
140
FC1 = FC0 = IN
130
185
260
INPUTS AND OUTPUTS
Logic Input Low Voltage
SHDN, FC0, FC1
2.2
1.0
Logic Input High Voltage
SHDN, FC0, FC1
3.5
2.8
Logic Input Bias Current
SHDN, FC0 = FC1 = GND or IN
-1
1
V+ to IN Shutdown Resistance IV+ = 10mA
22
100
V- to GND Shutdown Resistance IV- = 10mA
6
50
Output Resistance
(Note 1)
Voltage Conversion Efficiency
IV+ = 10mA, IV- = 0mA
V+ = 10V, IV- = 10mA (forced)
V+, RL = ∞
V-, RL = ∞
TA = +25°C
TA = TMIN to TMAX
TA = +25°C
TA = TMIN to TMAX
95
95
55
75
100
34
50
60
99
99
UNITS
V
V
mA
µA
kHz
V
V
µA
Ω
Ω
Ω
%
Note 1: Measured using the capacitor values in Table 1. Capacitor ESR contributes approximately 10% of the output impedance
[ESR + 1 / (pump frequency x capacitance)].
2 _______________________________________________________________________________________
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