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Part: AME7702
Category:
RF & Microwaves
-> Frequency Doublers
Description: Switched Capacitor Voltage Doublers
Company: Analog Micro
Datasheet: Download AME7702 datasheet File size : 543 kB
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Datasheet text preview:
Analog Microelectronics, Inc.
AME7700/AME7701/AME7702
ary limin Pre
Switched Capacitor Voltage Doublers
n General Description
The AME7700 series of economical, Charge-Pump Converters efficiently double a +1.5V to +5.5V input to +3.0V to +11V, with a working current exceeding 100mA. Due to their simplicity, small size, and performance, these CMOS converters have numerous applications. For most cases, only (2) external capacitors are required, however, in some cases, a single capacitor is acceptable. Minimum capacitance is obtained with the AME7701, while the AME7700 offers the lowest standby current. The AME7702 has a Frequency-Select pin for added flexibility. The input voltage can be tripled or quadrupled by cascading 2 Charge-Pumps. A single alkaline battery With it's low start-up voltage, a single alkaline battery can be configured with (2) AME7700's to quadruple the voltage and produce 5V out. Alternately, with a 5V source, (2) AME7700's can be configured to triple the voltage and produce 15V out.
n Features
l l l l l l
Small packages: SOT-25, SOT-26 +1.5V to +5.5V Input Range 60uA Quiescent Current ( AME7700) 99% Conversion Efficiency Output Current Exceeding 100mA User Selectable Frequency ( AME7702)
n Applications
l l l l l l l l
n Typical Connection
AME 7700/7701
Cellular Phones Digital Cameras Battery Chargers High Tech Flashlights PDA's - LCD displays Consumer Electronics Pagers Portable Electronics
V IN
DC
IN
CN
n Pin Configuration
VOUT
C1
CP
OUT
GND
SOT-25 Top View
C2
5 4
SOT-26 Top View
6
5
4
AME7700 AME7701
AME7702
1
1: GND 2: OUT 3: CN
2
3
4: IN 5: CP
1
1: GND 2: CN 3: OUT
2
3
4: IN 5: FC 6: CP
1
Analog Microelectronics, Inc.
AME7700/AME7701/AME7702
ary limin Pre
Switch Capacitor Voltage Doublers
n Pin Description
AME7700AEEV/ AME7701AEEV
Pin 1 2 3 4 5 De si gna ti on GND OUT CN IN CP Functi on Ground (-Supply) Power Output Capac it or (-) Power Input Capac it or (+)
AME7702AEEY
Pin 1 2 3 4 5 6 De si gna ti on GND CN OUT IN FC CP Functi on Ground (-Supply) Capac it or(-) Power Output Power Input Frequenc y Control Capac it or (+)
n Order Information
Part Number AME7700AE EV AME7701AE EV AME7702AE EY Pac k age SOT-25 SOT-25 SOT-26 Operat ing Temp. -40OC to +85OC -40OC to +85OC -40OC to +85OC
2
Analog Microelectronics, Inc.
AME7700/AME7701/AME7702
ary limin Pre
Switched Capacitor Voltage Doublers
n Absolute Maximum Ratings
P a r a m e te r S u p p ly V o lt a g e E S D C la s s i f i c a t i o n M a x im u m 6 B U n it V
n Recommended Operating Conditions
P arame te r S up ply Voltage A mb i e nt Temperature Range Juncti o n Temperature R a tin g 1 .5 - 5.5 V -4 0 to +85 C -4 0 to +125 C
o o
n Thermal Information
P arame te r Therma l Resistance (SOT-25,26) Maxi mum Junction Temperature Maxi mum Lead Temperature ( 10 Sec) Ma x imu m 2 50 1 50 3 00 U n it
o
C /W
o o
C C
C auti on: Stress above the listed absolute rating may cause permanent damage to the device
3
Analog Microelectronics, Inc.
AME7700/AME7701/AME7702
ary limin Pre
Switch Capacitor Voltage Doublers
n Electr ical Specification
T A = 25 C, V I N = 5V unless otherwise noted,C1 = C2 = 3.3µ F P ARAM ET ER S YM BOL TES T CONDITIONS A M E 7700 AME7702 FC is LO A M E 7701 AME7702 FC is HI RL = 10 K A M E 7700 AME7702 FC is LO A M E 7701 AME7702 FC is HI A M E 7700 AME7702 FC is LO A M E 7701 AME7702 FC is HI No load RL = 10 K 97 88 1. 5 8. 5 24. 5 12 35 40 20 99 92 MIN TYP 60 215 M AX 100 µA 300 5. 5 15. 5 K Hz 45. 5 50 ohm s 35 % % V UNI TS
No Load Current
II N
Supply Voltage Range
V IN
Oscillator Frequency
F O SC
Output Resistance
Ro
Voltage Conversion Efficiency Power Efficiency
V EF F P EF F
4
Analog Microelectronics, Inc.
AME7700/AME7701/AME7702
ary limin Pre
Switched Capacitor Voltage Doublers
35 30
O s c . Freq. @ 25C
L o a d Regulation
12 10
Oscillator Frequency (KHZ)
25 20 15 10 5 0 1 2
AME7701
8
VOUT
AME7700 AME7700
6 4 2 0
Input Voltage (V)
3
4
5
6
0
50
I ( mA)
1 00
1 50
Load Reg
12
50
A M E 7 7 0 0 Output Resistance @25C
Output Resistance (Ohm)
10
Vin=5
45
8
VOUT
40
6 4 2 0 0 50
Vin=2
Vin=3.3
2 . 2 µF 2 . 2 µF
35
30
3 . 3 µF 3 . 3µF
25
I(mA)
100
150
2
3
4
5
6
Input Voltage (V)
E l e c t r i c a l Characteristics vs. Temp
160 140 120
AME7700
3 00 2 50
S u p p l y Current @ 25C
Supply Current(mA)
ROUT/IDD
100 80 60 40 20 0 25 50 75 100 125 150
ROUT AME7701 ID D
2 00
AME7701
1 50 1 00 50 0 1 2 3 4 5 6
AME7700
Temperature( 0C )
In p u t Voltage (V)
5
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