TC7660MJAG [MICROCHIP]
SWITCHED CAPACITOR REGULATOR, 10 kHz SWITCHING FREQ-MAX, CDIP8, CERDIP-8;
| 型号： | TC7660MJAG |
| 厂家： | 
MICROCHIP |
| 描述： | SWITCHED CAPACITOR REGULATOR, 10 kHz SWITCHING FREQ-MAX, CDIP8, CERDIP-8 CD 开关 |
| 文件： | 总20页 (文件大小：1179K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
TC7660
Charge Pump DC-to-DC Voltage Converter
Features
Package Types
• Wide Input Voltage Range: +1.5V to +10V
• Efficient Voltage Conversion (99.9%, typ)
• Excellent Power Efficiency (98%, typ)
• Low Power Consumption: 80 µA (typ) @ VIN = 5V
• Low Cost and Easy to Use
PDIP/CERDIP/SOIC
+
NC
1
2
3
4
8
7
6
5
V
+
OSC
CAP
TC7660
LOW
VOLTAGE (LV)
GND
- Only Two External Capacitors Required
• Available in 8-Pin Small Outline (SOIC), 8-Pin
PDIP and 8-Pin CERDIP Packages
-
V
CAP
OUT
• Improved ESD Protection (3 kV HBM)
• No External Diode Required for High-Voltage
Operation
General Description
The TC7660 device is a pin-compatible replacement
for the industry standard 7660 charge pump voltage
converter. It converts a +1.5V to +10V input to a corre-
sponding -1.5V to -10V output using only two low-cost
capacitors, eliminating inductors and their associated
cost, size and electromagnetic interference (EMI).
Applications
• RS-232 Negative Power Supply
• Simple Conversion of +5V to ±5V Supplies
• Voltage Multiplication VOUT = ± n V+
• Negative Supplies for Data Acquisition Systems
and Instrumentation
The on-board oscillator operates at a nominal fre-
quency of 10 kHz. Operation below 10 kHz (for lower
supply current applications) is possible by connecting
an external capacitor from OSC to ground.
The TC7660 is available in 8-Pin PDIP, 8-Pin Small
Outline (SOIC) and 8-Pin CERDIP packages in
commercial and extended temperature ranges.
Functional Block Diagram
V+ CAP+
8
2
Voltage
Level
Translator
7
6
RC
Oscillator
4
5
OSC
LV
2
CAP-
VOUT
n
t
e
r
n
a
l
Voltage
Regulator
Logic
Network
TC7660
3
GND
2002-2011 Microchip Technology Inc.
DS21465C-page 1
TC7660
* Notice: Stresses above those listed under “Maximum Rat-
ings” may cause permanent damage to the device. This is a
stress rating only and functional operation of the device at
those or any other conditions above those indicated in the
operational sections of this specification is not intended. Expo-
sure to maximum rating conditions for extended periods may
affect device reliability.
1.0
ELECTRICAL
CHARACTERISTICS
Absolute Maximum Ratings*
Supply Voltage .............................................................+10.5V
LV and OSC Inputs Voltage: (Note 1)
+
.............................................. -0.3V to V for V < 5.5V
SS
+
+
+
.....................................(V – 5.5V) to (V ) for V > 5.5V
I
S
+
Current into LV .........................................20 µA for V > 3.5V
1
2
3
4
8
7
6
5
+
Output Short Duration (V
5.5V)...............Continuous
V
SUPPLY
I
L
(+5V)
+
Package Power Dissipation: (T 70°C)
TC7660
C
10 µF
A
1
C
OSC
8-Pin CERDIP ....................................................800 mW
8-Pin PDIP .........................................................730 mW
8-Pin SOIC.........................................................470 mW
Operating Temperature Range:
R
L
V
OUT
C Suffix.......................................................0°C to +70°C
I Suffix .....................................................-25°C to +85°C
E Suffix....................................................-40°C to +85°C
M Suffix .................................................-55°C to +125°C
Storage Temperature Range.........................-65°C to +160°C
ESD protection on all pins (HBM) ................................. 3 kV
Maximum Junction Temperature.................................. 150°C
C
10 µF
2
+
FIGURE 1-1:
TC7660 Test Circuit.
ELECTRICAL SPECIFICATIONS
Electrical Characteristics: Unless otherwise noted, specifications measured over operating temperature range with V = 5V,
+
C
= 0, refer to test circuit in Figure 1-1.
OSC
Parameters
Sym
Min
—
Typ
80
Max
180
10
Units
µA
V
Conditions
I+
Supply Current
R =
L
+
Supply Voltage Range, High
Supply Voltage Range, Low
Output Source Resistance
V
H
3.0
1.5
—
—
Min T Max, R = 10 k, LV Open
A L
+
V
L
—
3.5
V
Min T Max, R = 10 k, LV to GND
A L
70
100
120
130
150
300
I
I
I
I
=20 mA, T = +25°C
ROUT
OUT
OUT
OUT
A
—
—
=20 mA, T +70°C (C Device)
A
—
—
=20 mA, T +85°C (E and I Device)
A
—
104
150
=20 mA, T +125°C (M Device)
OUT
+
A
—
V = 2V, I
= 3 mA, LV to GND
OUT
0°C T +70°C
A
+
—
160
600
V = 2V, I
= 3 mA, LV to GND
OUT
-55°C T +125°C (M Device)
A
Oscillator Frequency
Power Efficiency
—
95
97
—
—
10
98
—
—
—
—
kHz Pin 7 open
fOSC
PEFF
VOUTEFF
ZOSC
%
%
R = 5 k
L
Voltage Conversion Efficiency
Oscillator Impedance
99.9
1.0
R =
L
+
M
k
V = 2V
+
100
—
V = 5V
+
Note 1: Destructive latch-up may occur if voltages greater than V or less than GND are supplied to any input pin.
DS21465C-page 2
2002-2011 Microchip Technology Inc.
TC7660
2.0
TYPICAL PERFORMANCE CURVES
Note: The graphs and tables provided following this note are a statistical summary based on a limited number of
samples and are provided for informational purposes only. The performance characteristics listed herein
are not tested or guaranteed. In some graphs or tables, the data presented may be outside the specified
operating range (e.g., outside specified power supply range) and therefore outside the warranted range.
Note: Unless otherwise indicated, C1 = C2 = 10 µF, ESRC1 = ESRC2 = 1 , TA = 25°C. See Figure 1-1.
12
10
100
98
96
I
= 1 mA
OUT
OUT
94
92
8
6
I
= 15 mA
90
88
86
84
82
SUPPLY VOLTAGE RANGE
4
2
+
V
= +5V
80
100
0
1k
10k
-55 -25
0
+25 +50 +75 +100 +125
OSCILLATOR FREQUENCY (Hz)
TEMPERATURE (C)
FIGURE 2-1:
Operating Voltage vs.
FIGURE 2-4:
Power Conversion
Temperature.
Efficiency vs. Oscillator Frequency.
500
10k
I
= 1 mA
OUT
450
400
1k
200
150
100
50
+
V
V
= +2V
= +5V
100Ω
10Ω
+
0
0
1
2
3
4
5
6
7
8
-55 -25
0
+25 +50 +75 +100 +125
SUPPLY VOLTAGE (V)
TEMPERATURE (°C)
FIGURE 2-2:
Output Source Resistance
FIGURE 2-5:
Output Source Resistance
vs. Supply Voltage.
vs. Temperature.
20
+
10k
+
V
= +5V
V
= +5V
18
16
14
1k
100
10
12
10
8
6
1
10
100
1000
10k
-55 -25
0
+25 +50 +75 +100 +125
OSCILLATOR CAPACITANCE (pF)
TEMPERATURE (°C)
FIGURE 2-3:
Frequency of Oscillation vs.
FIGURE 2-6:
Unloaded Oscillator
Oscillator Capacitance.
Frequency vs. Temperature.
2002-2011 Microchip Technology Inc.
DS21465C-page 3
TC7660
Note: Unless otherwise indicated, C1 = C2 = 10 µF, ESRC1 = ESRC2 = 1 , TA = 25°C. See Figure 1-1.
5
4
0
-1
-2
-3
-4
-5
-6
-7
+
V
= +5V
3
2
1
0
-1
-2
-3
-4
-8
SLOPE 55Ω
-9
LV OPEN
-10
-5
0
10 20 30 40 50 60 70 80 90 100
OUTPUT CURRENT (mA)
0
10 20 30 40 50 60 70
LOAD CURRENT (mA)
80
FIGURE 2-7:
Output Voltage vs. Output
FIGURE 2-10:
Output Voltage vs. Load
Current.
Current.
100
90
100
90
100
90
20
+
V
= 2V
18
16
80
80
80
70
60
50
70
60
50
70
60
50
14
12
10
40
30
20
10
40
30
20
40
30
20
10
8
6
4
2
0
10
+
V
= +5V
50
0
0
10
20
30
40
60
0
1.5
3.0
4.5
6.0
7.5 9.0
LOAD CURRENT (mA)
LOAD CURRENT (mA)
FIGURE 2-8:
Supply Current and Power
FIGURE 2-11:
Supply Current and Power
Conversion Efficiency vs. Load Current.
Conversion Efficiency vs. Load Current.
2
+
V
= +2V
1
0
-1
SLOPE 150Ω
-2
0
1
2
3
4
5
6
7
8
LOAD CURRENT (mA)
FIGURE 2-9:
Output Voltage vs. Load
Current.
DS21465C-page 4
2002-2011 Microchip Technology Inc.
TC7660
3.0
PIN DESCRIPTIONS
The descriptions of the pins are listed in Table 3-1.
TABLE 3-1:
PIN FUNCTION TABLE
Pin No.
Symbol
Description
1
2
3
4
5
6
7
8
NC
No connection
+
CAP
Charge pump capacitor positive terminal
Ground terminal
GND
-
CAP
Charge pump capacitor negative terminal
Output voltage
V
OUT
LV
Low voltage pin. Connect to GND for V+ < 3.5V
OSC
Oscillator control input. Bypass with an external capacitor to slow the oscillator
Power supply positive voltage input
+
V
+
3.1
Charge Pump Capacitor (CAP )
3.5
Low Voltage Pin (LV)
Positive connection for the charge pump capacitor, or
flying capacitor, used to transfer charge from the input
source to the output. In the voltage-inverting configura-
tion, the charge pump capacitor is charged to the input
voltage during the first half of the switching cycle. Dur-
ing the second half of the switching cycle, the charge
pump capacitor is inverted and charge is transferred to
the output capacitor and load.
The low voltage pin ensures proper operation of the
internal oscillator for input voltages below 3.5V. The low
voltage pin should be connected to ground (GND) for
input voltages below 3.5V. Otherwise, the low voltage
pin should be allowed to float.
3.6
Oscillator Control Input (OSC)
The oscillator control input can be utilized to slow down
or speed up the operation of the TC7660. Refer to
Section 5.4 “Changing the TC7660 Oscillator Fre-
quency”, for details on altering the oscillator
frequency.
It is recommended that a low ESR (equivalent series
resistance) capacitor be used. Additionally, larger
values will lower the output resistance.
3.2
Ground (GND)
+
3.7
Power Supply (V )
Input and output zero volt reference.
Positive power supply input voltage connection. It is
recommended that a low ESR (equivalent series resis-
tance) capacitor be used to bypass the power supply
input to ground (GND).
-
3.3
Charge Pump Capacitor (CAP )
Negative connection for the charge pump capacitor, or
flying capacitor, used to transfer charge from the input
to the output. Proper orientation is imperative when
using a polarized capacitor.
3.4
Output Voltage (V
)
OUT
Negative connection for the charge pump output
capacitor. In the voltage-inverting configuration, the
charge pump output capacitor supplies the output load
during the first half of the switching cycle. During the
second half of the switching cycle, charge is restored to
the charge pump output capacitor.
It is recommended that a low ESR (equivalent series
resistance) capacitor be used. Additionally, larger
values will lower the output ripple.
2002-2011 Microchip Technology Inc.
DS21465C-page 5
TC7660
EQUATION
4.0
4.1
DETAILED DESCRIPTION
1
ROUT
=
----------------------------- + 8RSW + 4ESRC1 + ESRC2
fPUMP C1
Theory of Operation
The TC7660 charge pump converter inverts the voltage
applied to the V+pin. The conversion consists of a two-
phase operation (Figure 4-1). During the first phase,
switches S2 and S4 are open and switches S1 and S3
are closed. C1 charges to the voltage applied to the V+
pin, with the load current being supplied from C2. Dur-
ing the second phase, switches S2 and S4 are closed
and switches S1 and S3 are open. Charge is trans-
ferred from C1 to C2, with the load current being
supplied from C1.
Where:
fOSC
fPUMP = ----------
2
RSW = on-resistance of the switches
ESRC1 = equivalent series resistance of C
ESRC2 = equivalent series resistance of C
1
2
4.2
Switched Capacitor Inverter
Power Losses
S1
S2
C1
V+
The overall power loss of a switched capacitor inverter
is affected by four factors:
+
1. Losses from power consumed by the internal
oscillator, switch drive, etc. These losses will
vary with input voltage, temperature and
oscillator frequency.
+
C2
GND
S3
S4
VOUT = -VIN
2. Conduction losses in the non-ideal switches.
3. Losses due to the non-ideal nature of the
external capacitors.
4. Losses that occur during charge transfer from
C1 to C2 when a voltage difference between the
capacitors exists.
FIGURE 4-1:
Inverter.
Ideal Switched Capacitor
Figure 4-3 depicts the non-ideal elements associated
with the switched capacitor inverter power loss.
In this manner, the TC7660 performs a voltage inver-
sion, but does not provide regulation. The average out-
put voltage will drop in a linear manner with respect to
load current. The equivalent circuit of the charge pump
inverter can be modeled as an ideal voltage source in
series with a resistor, as shown in Figure 4-2.
S1
S2
RSW
RSW
+
+
V+
IDD
C1
C2
+
-
IOUT
LOAD
ROUT
ESRC1
S3
ESRC2
S4
VOUT
-
RSW
RSW
V+
+
FIGURE 4-3:
Non-Ideal Switched
Capacitor Inverter.
FIGURE 4-2:
Equivalent Circuit Model.
Switched Capacitor Inverter
The power loss is calculated using the following
equation:
The value of the series resistor (ROUT) is a function of
the switching frequency, capacitance and equivalent
series resistance (ESR) of C1 and C2 and the on-resis-
tance of switches S1, S2, S3 and S4. A close
approximation for ROUT is given in the following
equation:
EQUATION
PLOSS = I2OUT ROUT + IDD V+
DS21465C-page 6
2002-2011 Microchip Technology Inc.
TC7660
5.2
Paralleling Devices
5.0
5.1
APPLICATIONS INFORMATION
To reduce the value of ROUT, multiple TC7660 voltage
converters can be connected in parallel (Figure 5-2).
The output resistance will be reduced by approximately
a factor of n, where n is the number of devices
connected in parallel.
Simple Negative Voltage
Converter
Figure 5-1 shows typical connections to provide a
negative supply where a positive supply is available. A
similar scheme may be employed for supply voltages
anywhere in the operating range of +1.5V to +10V,
keeping in mind that pin 6 (LV) is tied to the supply
negative (GND) only for supply voltages below 3.5V.
EQUATION
ROUT of TC7660
ROUT = --------------------------------------------------------
n number of devices
+
While each device requires its own pump capacitor
(C1), all devices may share one reservoir capacitor
(C2). To preserve ripple performance, the value of C2
should be scaled according to the number of devices
connected in parallel.
V
1
2
3
4
8
7
6
5
V
*
OUT
+
TC7660
C
10 µF
C
1
2
10 µF
+
5.3
Cascading Devices
+
A larger negative multiplication of the initial supply volt-
age can be obtained by cascading multiple TC7660
devices. The output voltage and the output resistance
will both increase by approximately a factor of n, where
n is the number of devices cascaded.
* V
= -V for 1.5V V+ 10V
OUT
FIGURE 5-1:
Simple Negative Converter.
The output characteristics of the circuit in Figure 5-1
are those of a nearly ideal voltage source in series with
a 70resistor. Thus, for a load current of -10 mA and
a supply voltage of +5V, the output voltage would be
-4.3V.
EQUATION
VOUT = –nV+
ROUT = n ROUT of TC7660
V+
1
2
3
4
8
7
6
5
1
2
3
4
8
7
6
5
+
TC7660
C1
RL
+
TC7660
C1
“1”
“n”
C2
+
FIGURE 5-2:
Paralleling Devices Lowers Output Impedance.
V+
1
2
3
4
8
7
6
5
1
2
3
4
8
+
TC7660
10 µF
7
6
5
+
TC7660
10 µF
“1”
VOUT
10 µF
*
“n”
+
10 µF
+
* VOUT = -n V+ for 1.5V V+ 10V
Increased Output Voltage By Cascading Devices.
FIGURE 5-3:
2002-2011 Microchip Technology Inc.
DS21465C-page 7
TC7660
5.4
Changing the TC7660 Oscillator
Frequency
5.5
Positive Voltage Multiplication
Positive voltage multiplication can be obtained by
employing two external diodes (Figure 5-6). Refer to
the theory of operation of the TC7660 (Section 4.1
“Theory of Operation”). During the half cycle when
switch S2 is closed, capacitor C1 of Figure 5-6 is
charged up to a voltage of V+ - VF1, where VF1 is the
forward voltage drop of diode D1. During the next half
cycle, switch S1 is closed, shifting the reference of
capacitor C1 from GND to V+. The energy in capacitor
C1 is transferred to capacitor C2 through diode D2, pro-
ducing an output voltage of approximately:
The operating frequency of the TC7660 can be
changed in order to optimize the system performance.
The frequency can be increased by over-driving the
OSC input (Figure 5-4). Any CMOS logic gate can be
utilized in conjunction with a 1 k series resistor. The
resistor is required to prevent device latch-up. While
TTL level signals can be utilized, an additional 10 k
pull-up resistor to V+ is required. Transitions occur on
the rising edge of the clock input. The resultant output
voltage ripple frequency is one half the clock input.
Higher clock frequencies allow for the use of smaller
pump and reservoir capacitors for a given output volt-
age ripple and droop. Additionally, this allows the
TC7660 to be synchronized to an external clock,
eliminating undesirable beat frequencies.
EQUATION
VOUT = 2 V+ – VF1 + VF2
where:
At light loads, lowering the oscillator frequency can
increase the efficiency of the TC7660 (Figure 5-5). By
lowering the oscillator frequency, the switching losses
are reduced. Refer to Figure 2-3 to determine the typi-
cal operating frequency based on the value of the
external capacitor. At lower operating frequencies, it
may be necessary to increase the values of the pump
and reservoir capacitors in order to maintain the
desired output voltage ripple and output impedance.
VF1 is the forward voltage drop of diode D1
and
VF2 is the forward voltage drop of diode D2.
V+
1
2
3
4
8
7
6
5
VOUT
=
D1
(2 V+) - (2 VF)
TC7660
D2
V+
V+
+
+
1
2
3
4
8
7
6
5
C1
C2
1 k
CMOS
GATE
+
TC7660
10 µF
FIGURE 5-6:
5.6
Positive Voltage Multiplier.
VOUT
“1”
Combined Negative Voltage
Conversion and Positive Supply
Multiplication
10 µF
+
FIGURE 5-4:
External Clocking.
Simultaneous voltage inversion and positive voltage
multiplication can be obtained (Figure 5-7). Capacitors
C1 and C3 perform the voltage inversion, while capaci-
tors C2 and C4, plus the two diodes, perform the posi-
tive voltage multiplication. Capacitors C1 and C2 are
the pump capacitors, while capacitors C3 and C4 are
the reservoir capacitors for their respective functions.
Both functions utilize the same switches of the TC7660.
As a result, if either output is loaded, both outputs will
drop towards GND.
V+
1
8
7
6
5
2
+
TC7660
C1
COSC
3
VOUT
4
C2
+
FIGURE 5-5:
Lowering Oscillator
Frequency.
DS21465C-page 8
2002-2011 Microchip Technology Inc.
TC7660
+
V
V
= -V
OUT
1
2
3
4
8
7
6
5
+
C
3
+
TC7660
D
D
1
2
V
=
OUT
+
+
(2 V ) - (2 V )
C
F
1
+
+
C
2
C
4
FIGURE 5-7:
Combined Negative
Converter and Positive Multiplier.
5.7
Efficient Positive Voltage
Multiplication/Conversion
Since the switches that allow the charge pumping
operation are bidirectional, the charge transfer can be
performed backwards as easily as forwards.
Figure 5-8 shows a TC7660 transforming -5V to +5V
(or +5V to +10V, etc.). The only problem here is that the
internal clock and switch-drive section will not operate
until some positive voltage has been generated. An ini-
tial inefficient pump, as shown in Figure 5-7, could be
used to start this circuit up, after which it will bypass the
other (D1 and D2 in Figure 5-7 would never turn on), or
else the diode and resistor shown dotted in Figure 5-8
can be used to “force” the internal regulator on.
-
V
= -V
OUT
1
2
3
4
8
7
6
5
+
10 µF
1 M
+
C
10 µF
TC7660
1
-
V input
FIGURE 5-8:
Positive Voltage
Conversion.
2002-2011 Microchip Technology Inc.
DS21465C-page 9
TC7660
6.0
6.1
PACKAGING INFORMATION
Package Marking Information
8-Lead PDIP (300 mil)
Example
Example
TC7660
TC7660
XXXXXXXX
XXXXXNNN
e
3
CPA 256
CPA256
1208
1208
YYWW
8-Lead CERDIP (.300”)
Example
Example
TC7660
TC7660
XXXXXXXX
XXXXXNNN
e
3
MJA256
MJA 256
1208
1208
YYWW
8-Lead SOIC (3.90 mm)
Example
Example
TC7660C
TC7660C
OA1208
e
3
OA 1208
256
256
NNN
Legend: XX...X Customer-specific information
Y
Year code (last digit of calendar year)
YY
WW
NNN
Year code (last 2 digits of calendar year)
Week code (week of January 1 is week ‘01’)
Alphanumeric traceability code
e
3
Pb-free JEDEC designator for Matte Tin (Sn)
This package is Pb-free. The Pb-free JEDEC designator (
can be found on the outer packaging for this package.
*
)
e
3
Note: In the event the full Microchip part number cannot be marked on one line, it will
be carried over to the next line thus limiting the number of available characters
for customer specific information.
DS21465C-page 10
2002-2011 Microchip Technology Inc.
TC7660
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NOTE 1
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3
1
2
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A
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A1
c
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b1
b
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2002-2011 Microchip Technology Inc.
DS21465C-page 11
TC7660
Note: For the most current package drawings, please see the Microchip Packaging Specification located at
http://www.microchip.com/packaging
DS21465C-page 12
2002-2011 Microchip Technology Inc.
TC7660
Note: For the most current package drawings, please see the Microchip Packaging Specification located at
http://www.microchip.com/packaging
2002-2011 Microchip Technology Inc.
DS21465C-page 13
TC7660
Note: For the most current package drawings, please see the Microchip Packaging Specification located at
http://www.microchip.com/packaging
DS21465C-page 14
2002-2011 Microchip Technology Inc.
TC7660
ꢀꢁꢂꢃꢄꢅꢆꢇꢈꢄꢉꢊꢋꢌꢆꢟꢗꢄꢈꢈꢆꢠꢎꢊꢈꢋꢐꢃꢆꢑꢠꢒꢓꢆꢔꢆꢝꢄꢡꢡꢙꢢꢣꢆꢕꢤꢥꢖꢆꢗꢗꢆꢘꢙꢅꢚꢆꢛꢟꢠꢏꢦꢜ
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2002-2011 Microchip Technology Inc.
DS21465C-page 15
TC7660
APPENDIX A: REVISION HISTORY
Revision C (March 2012)
The following is the list of modifications.
1. Updated Figure 5-5.
2. Added Appendix A.
Revision B (March 2003)
Undocumented changes.
Revision A (May 2002)
Original release of this document.
DS21465C-page 16
2002-2012 Microchip Technology Inc.
TC7660
PRODUCT IDENTIFICATION SYSTEM
To order or obtain information, e.g., on pricing or delivery, refer to the factory or the listed sales office.
Examples:
PART NO.
Device
X
/XX
a)
b)
c)
d)
e)
f)
TC7660COA: Commercial Temp., SOIC
package.
TC7660COA713:Tape and Reel, Commercial
Temp., SOIC package.
TC7660CPA: Commercial Temp., PDIP
package.
TC7660EOA: Extended Temp., SOIC
package.
TC7660EOA713:Tape and Reel, Extended
Temp., SOIC package.
TC7660EPA: Extended Temp., PDIP
package.
Temperature Package
Range
Device:
TC7660: DC-to-DC Voltage Converter
Temperature Range:
C
E
I
=
=
=
=
0°C to +70°C
-40°C to +85°C
-25°C to +85°C (CERDIP only)
-55°C to +125°C (CERDIP only)
M
g)
h)
TC7660IJA: Industrial Temp., CERDIP
package
TC7660MJA: Military Temp., CERDIP
package.
Package:
PA
JA
OA
=
=
=
Plastic DIP, (300 mil body), 8-lead
Ceramic DIP, (300 mil body), 8-lead
SOIC (Narrow), 8-lead
OA713 = SOIC (Narrow), 8-lead (Tape and Reel)
2002-2012 Microchip Technology Inc.
DS21465C-page 17
TC7660
NOTES:
DS21465C-page 18
2002-2012 Microchip Technology Inc.
Note the following details of the code protection feature on Microchip devices:
•
Microchip products meet the specification contained in their particular Microchip Data Sheet.
•
Microchip believes that its family of products is one of the most secure families of its kind on the market today, when used in the
intended manner and under normal conditions.
•
There are dishonest and possibly illegal methods used to breach the code protection feature. All of these methods, to our
knowledge, require using the Microchip products in a manner outside the operating specifications contained in Microchip’s Data
Sheets. Most likely, the person doing so is engaged in theft of intellectual property.
•
•
Microchip is willing to work with the customer who is concerned about the integrity of their code.
Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their code. Code protection does not
mean that we are guaranteeing the product as “unbreakable.”
Code protection is constantly evolving. We at Microchip are committed to continuously improving the code protection features of our
products. Attempts to break Microchip’s code protection feature may be a violation of the Digital Millennium Copyright Act. If such acts
allow unauthorized access to your software or other copyrighted work, you may have a right to sue for relief under that Act.
Information contained in this publication regarding device
applications and the like is provided only for your convenience
and may be superseded by updates. It is your responsibility to
ensure that your application meets with your specifications.
MICROCHIP MAKES NO REPRESENTATIONS OR
WARRANTIES OF ANY KIND WHETHER EXPRESS OR
IMPLIED, WRITTEN OR ORAL, STATUTORY OR
OTHERWISE, RELATED TO THE INFORMATION,
INCLUDING BUT NOT LIMITED TO ITS CONDITION,
QUALITY, PERFORMANCE, MERCHANTABILITY OR
FITNESS FOR PURPOSE. Microchip disclaims all liability
arising from this information and its use. Use of Microchip
devices in life support and/or safety applications is entirely at
the buyer’s risk, and the buyer agrees to defend, indemnify and
hold harmless Microchip from any and all damages, claims,
suits, or expenses resulting from such use. No licenses are
conveyed, implicitly or otherwise, under any Microchip
intellectual property rights.
Trademarks
The Microchip name and logo, the Microchip logo, dsPIC,
KEELOQ, KEELOQ logo, MPLAB, PIC, PICmicro, PICSTART,
32
PIC logo, rfPIC and UNI/O are registered trademarks of
Microchip Technology Incorporated in the U.S.A. and other
countries.
FilterLab, Hampshire, HI-TECH C, Linear Active Thermistor,
MXDEV, MXLAB, SEEVAL and The Embedded Control
Solutions Company are registered trademarks of Microchip
Technology Incorporated in the U.S.A.
Analog-for-the-Digital Age, Application Maestro, chipKIT,
chipKIT logo, CodeGuard, dsPICDEM, dsPICDEM.net,
dsPICworks, dsSPEAK, ECAN, ECONOMONITOR,
FanSense, HI-TIDE, In-Circuit Serial Programming, ICSP,
Mindi, MiWi, MPASM, MPLAB Certified logo, MPLIB,
MPLINK, mTouch, Omniscient Code Generation, PICC,
PICC-18, PICDEM, PICDEM.net, PICkit, PICtail, REAL ICE,
rfLAB, Select Mode, Total Endurance, TSHARC,
UniWinDriver, WiperLock and ZENA are trademarks of
Microchip Technology Incorporated in the U.S.A. and other
countries.
SQTP is a service mark of Microchip Technology Incorporated
in the U.S.A.
All other trademarks mentioned herein are property of their
respective companies.
© 2002-2012, Microchip Technology Incorporated, Printed in
the U.S.A., All Rights Reserved.
Printed on recycled paper.
ISBN: 978-1-62076-089-5
QUALITY MANAGEMENT SYSTEM
CERTIFIED BY DNV
Microchip received ISO/TS-16949:2009 certification for its worldwide
headquarters, design and wafer fabrication facilities in Chandler and
Tempe, Arizona; Gresham, Oregon and design centers in California
and India. The Company’s quality system processes and procedures
are for its PIC® MCUs and dsPIC® DSCs, KEELOQ® code hopping
devices, Serial EEPROMs, microperipherals, nonvolatile memory and
analog products. In addition, Microchip’s quality system for the design
and manufacture of development systems is ISO 9001:2000 certified.
== ISO/TS 16949 ==
2002-2012 Microchip Technology Inc.
DS21465C-page 19
Worldwide Sales and Service
AMERICAS
ASIA/PACIFIC
ASIA/PACIFIC
EUROPE
Corporate Office
2355 West Chandler Blvd.
Chandler, AZ 85224-6199
Tel: 480-792-7200
Fax: 480-792-7277
Technical Support:
http://www.microchip.com/
support
Asia Pacific Office
Suites 3707-14, 37th Floor
Tower 6, The Gateway
Harbour City, Kowloon
Hong Kong
Tel: 852-2401-1200
Fax: 852-2401-3431
India - Bangalore
Tel: 91-80-3090-4444
Fax: 91-80-3090-4123
Austria - Wels
Tel: 43-7242-2244-39
Fax: 43-7242-2244-393
Denmark - Copenhagen
Tel: 45-4450-2828
Fax: 45-4485-2829
India - New Delhi
Tel: 91-11-4160-8631
Fax: 91-11-4160-8632
France - Paris
Tel: 33-1-69-53-63-20
Fax: 33-1-69-30-90-79
India - Pune
Tel: 91-20-2566-1512
Fax: 91-20-2566-1513
Australia - Sydney
Tel: 61-2-9868-6733
Fax: 61-2-9868-6755
Web Address:
www.microchip.com
Germany - Munich
Tel: 49-89-627-144-0
Fax: 49-89-627-144-44
Japan - Osaka
Tel: 81-66-152-7160
Fax: 81-66-152-9310
Atlanta
Duluth, GA
Tel: 678-957-9614
Fax: 678-957-1455
China - Beijing
Tel: 86-10-8569-7000
Fax: 86-10-8528-2104
Italy - Milan
Tel: 39-0331-742611
Fax: 39-0331-466781
Japan - Yokohama
Tel: 81-45-471- 6166
Fax: 81-45-471-6122
China - Chengdu
Tel: 86-28-8665-5511
Fax: 86-28-8665-7889
Boston
Westborough, MA
Tel: 774-760-0087
Fax: 774-760-0088
Netherlands - Drunen
Tel: 31-416-690399
Fax: 31-416-690340
Korea - Daegu
Tel: 82-53-744-4301
Fax: 82-53-744-4302
China - Chongqing
Tel: 86-23-8980-9588
Fax: 86-23-8980-9500
Chicago
Itasca, IL
Tel: 630-285-0071
Fax: 630-285-0075
Spain - Madrid
Tel: 34-91-708-08-90
Fax: 34-91-708-08-91
Korea - Seoul
China - Hangzhou
Tel: 86-571-2819-3187
Fax: 86-571-2819-3189
Tel: 82-2-554-7200
Fax: 82-2-558-5932 or
82-2-558-5934
UK - Wokingham
Tel: 44-118-921-5869
Fax: 44-118-921-5820
Cleveland
Independence, OH
Tel: 216-447-0464
Fax: 216-447-0643
China - Hong Kong SAR
Tel: 852-2401-1200
Fax: 852-2401-3431
Malaysia - Kuala Lumpur
Tel: 60-3-6201-9857
Fax: 60-3-6201-9859
Dallas
Addison, TX
Tel: 972-818-7423
Fax: 972-818-2924
China - Nanjing
Tel: 86-25-8473-2460
Fax: 86-25-8473-2470
Malaysia - Penang
Tel: 60-4-227-8870
Fax: 60-4-227-4068
China - Qingdao
Tel: 86-532-8502-7355
Fax: 86-532-8502-7205
Philippines - Manila
Tel: 63-2-634-9065
Fax: 63-2-634-9069
Detroit
Farmington Hills, MI
Tel: 248-538-2250
Fax: 248-538-2260
China - Shanghai
Tel: 86-21-5407-5533
Fax: 86-21-5407-5066
Singapore
Tel: 65-6334-8870
Fax: 65-6334-8850
Indianapolis
Noblesville, IN
Tel: 317-773-8323
Fax: 317-773-5453
China - Shenyang
Tel: 86-24-2334-2829
Fax: 86-24-2334-2393
Taiwan - Hsin Chu
Tel: 886-3-5778-366
Fax: 886-3-5770-955
Los Angeles
China - Shenzhen
Tel: 86-755-8203-2660
Fax: 86-755-8203-1760
Taiwan - Kaohsiung
Tel: 886-7-536-4818
Fax: 886-7-330-9305
Mission Viejo, CA
Tel: 949-462-9523
Fax: 949-462-9608
China - Wuhan
Tel: 86-27-5980-5300
Fax: 86-27-5980-5118
Taiwan - Taipei
Tel: 886-2-2500-6610
Fax: 886-2-2508-0102
Santa Clara
Santa Clara, CA
Tel: 408-961-6444
Fax: 408-961-6445
China - Xian
Tel: 86-29-8833-7252
Fax: 86-29-8833-7256
Thailand - Bangkok
Tel: 66-2-694-1351
Fax: 66-2-694-1350
Toronto
Mississauga, Ontario,
Canada
China - Xiamen
Tel: 905-673-0699
Fax: 905-673-6509
Tel: 86-592-2388138
Fax: 86-592-2388130
China - Zhuhai
Tel: 86-756-3210040
Fax: 86-756-3210049
11/29/11
DS21465C-page 20
2002-2012 Microchip Technology Inc.
相关型号：
TC7660SCOAG
SWITCHED CAPACITOR REGULATOR, 45 kHz SWITCHING FREQ-MAX, PDSO8, PLASTIC, SOIC-8
MICROCHIP
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