Max865 compact, dual-output charge pump, Typical operating characteristics – Rainbow Electronics MAX865 User Manual
Page 2
100
90
0
0
2
8
10
18
EFFICIENCY vs. OUTPUT CURRENT
(V
IN
= 5V)
30
20
10
80
70
MAX865-01
OUTPUT CURRENT (mA)
EFFICIENCY (%)
4
6
12
14
50
40
60
16
V-
V+
100
90
0
0
1
3
4
8
EFFICIENCY vs. OUTPUT CURRENT
(V
IN
= 3.3V)
30
20
10
80
70
MAX865-02
OUTPUT CURRENT (mA)
EFFICIENCY (%)
2
5
6
50
40
60
7
V-
V+
100
90
0
0
1.0
2.5
EFFICIENCY vs. OUTPUT CURRENT
(V
IN
= 2V)
30
20
10
80
70
MAX865-03
OUTPUT CURRENT (mA)
EFFICIENCY (%)
0.5
1.5
50
40
60
2.0
V-
V+
__________________________________________Typical Operating Characteristics
(Circuit of Figure 1, V
IN
= 5V, T
A
= +25°C, unless otherwise noted.)
MAX865
Compact, Dual-Output Charge Pump
2
_______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(V
IN
= 5V, C1 = C2 = C3 = C4 = 3.3µF, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at T
A
= +25°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.
V+ to GND .................................................................+12V, -0.3V
IN to GND .................................................................+6.2V, -0.3V
V- to GND ..................................................................-12V, +0.3V
V- Output Current .............................................................100mA
V- Short-Circuit to GND ................................................Indefinite
Continuous Power Dissipation (T
A
= +70°C)
µMAX (derate 4.1mW/°C above +70°C) .......................330mW
Operating Temperature Range
MAX865EUA .....................................................-40°C to +85°C
Storage Temperature Range .............................-65°C to +160°C
Lead Temperature (soldering, 10sec) .............................+300°C
T
A
= +25°C
R
LOAD
= 10k
Ω
R
LOAD
= 10k
Ω
I
L
= 5mA
V+ = 10V (forced),
I
V-
= 1mA
I
V+
= 1mA,
I
V-
= 0mA
T
A
= -40°C to +85°C (Note 1)
T
A
= +25°C
T
A
= -40°C to +85°C (Note 1)
CONDITIONS
0.6
1.05
V
6.0
Maximum Supply Voltage
V
2.0
1.5
Minimum Supply Voltage
%
85
Power Efficiency
Ω
140
Output Resistance
75
100
280
mA
1.15
Supply Current
19.5
24
32.5
kHz
18
34
Oscillator Frequency
150
200
UNITS
MIN
TYP
MAX
PARAMETER
T
A
= +25°C
T
A
= T
MIN
to T
MAX
T
A
= +25°C
T
A
= T
MIN
to T
MAX
V-, R
L
=
∞
V+, R
L
=
∞
%
90
98
Voltage Conversion Efficiency
95
99
Note 1:
These specifications are guaranteed by design and are not production tested.