TC7662AEPA 반도체 회로 부품 판매점
CHARGE PUMP DC-TO-DC CONVERTER
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 TelCom Semiconductor |
EVALUATION
KIT
AVAILABLE
1
TC7662A
CHARGE PUMP DC-TO-DC CONVERTER
FEATURES
s Wide Operating Range ............................. 3V to 18V
s Increased Output Current .............................. 40mA
s Pin Compatible with ICL7662/SI7661/TC7660/
LTC1044
s No External Diodes Required
s Low Output Impedance @ IL = 20mA ....... 40Ω Typ.
s No Low-Voltage Terminal Required
s CMOS Construction
ORDERING INFORMATION
Part No.
TC7662ACPA
TC7662AEPA
TC7662AIJA
TC7662AMJA
TC7660EV
Package
Temperature
Range
8-Pin Plastic DIP
0°C to +70°C
8-Pin Plastic DIP – 40°C to +85°C
8-Pin CerDIP
– 25°C to +85°C
8-Pin CerDIP
– 55°C to +125°C
Evaluation Kit for
Charge Pump Family
GENERAL DESCRIPTION
The TC7662A is a pin-compatible upgrade to the In-
dustry standard TC7660 charge pump voltage converter. It
converts a +3V to +18V input to a corresponding – 3V to
-18V output using only two low-cost capacitors, eliminating
inductors and their associated cost, size and EMI. In addi-
tion to a wider power supply input range (3V to 18V versus
1.5V to 10V for the TC7660), the TC7662A can source
output currents as high as 40mA. The on-board oscillator
operates at a nominal frequency of 12kHz. Operation be-
low 10kHz (for lower supply current applications) is also
possible by connecting an external capacitor from OSC to
ground.
The TC7662A directly is recommended for designs
requiring greater output current and/or lower input/output
voltage drop. It is available in 8-pin DIP packages in com-
mercial and extended temperature ranges.
PIN CONFIGURATION
NC 1
C+ 2
8 VDD
7 OSC
GND 3 TC7662A 6 NC
C– 4
5 VOUT
2
3
4
5
FUNCTIONAL BLOCK DIAGRAM
NC = NO INTERNAL CONNECTION
COSC 7
I
Q
+ F/F
C
–Q
COMPARATOR
WITH HYSTERESIS
VREF
TC7662A
LEVEL
SHIFT
LEVEL
SHIFT
LEVEL
SHIFT
8 VDD
P SW1
2 CAP+
N SW4
+
CP
EXT
GND
3
N SW2
+
OUT
CR
EXT
4 CAP–
RL
6
7
LEVEL
SHIFT
N SW3
5
VOUT
8
TELCOM SEMICONDUCTOR, INC.
TC7662A-5 9/11/96
4-77
CHARGE PUMP
DC-TO-DC CONVERTER
TC7662A
ABSOLUTE MAXIMUM RATINGS*
Supply Voltage VDD to GND .................................... +18V
Input Voltage (Any Pin) ........... (VDD + 0.3) to (V SS – 0.3)
Current Into Any Pin ................................................. 10mA
Operating Temperature Range
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
Power Dissipation (TA ≤ 70°C)
Plastic DIP ......................................................730mW
CerDIP ............................................................ 800mW
Package Thermal Resistance
CPA, EPA θJA .............................................. 140°C/W
IJA, MJA θJA .................................................. 90°C/W
Storage Temperature Range ................ – 65°C to +150°C
Lead Temperature (Soldering, 10 sec) ................. +300°C
ESD Protection ..................................................... ±2000V
Output Short Circuit ................. Continuous (at 5.5V Input)
*Static-sensitive device. Unused devices must be stored in conductive
material. Protect devices from static discharge and static fields. Stresses
above those listed under Absolute Maximum Ratings may cause perma-
nent damage to the device. These are stress ratings only and functional
operation of the device at these or any other conditions above 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: VDD = 15V, TA = +25°C (See Test Circuit), unless otherwise specified.
Symbol
VDD
IS
Parameter
Supply Voltage
Supply Current
VDD = +15V
VDD = +5V
RO
COSC
PEFF
VEFF
Output Source
Resistance
Oscillator Frequency
Power Efficiency
Voltage Efficiency
Test Conditions
RL = ∞
0°C ≤ TA ≤ +70°C
– 55°C ≤ TA ≤ +125°C
0°C ≤ TA ≤ +70°C
– 55°C ≤ TA ≤ +125°C
IL = 20mA, VDD = +15V
IL = 40mA, VDD = +15V
IL = 3mA, VDD = +5V
VDD = +15V
RL = 2 kΩ
VDD = +15V
RL = ∞
Over Operating Temperature Range
Min
3
—
—
—
—
—
—
—
—
—
—
93
99
96
Typ
—
510
560
650
190
210
210
40
50
100
12
97
99.9
—
Max
18
700
—
—
—
—
—
50
60
125
—
—
—
—
Unit
V
µA
Ω
kHz
%
%
4-78 TELCOM SEMICONDUCTOR, INC.
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( telcom )
TC7662AEPA converter
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국내 전력반도체 판매점
상호 : 아이지 인터내셔날
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IGBT, TR 모듈, SCR, 다이오드모듈, 각종 전력 휴즈
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관련 데이터시트
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CHARGE PUMP DC-TO-DC CONVERTER - TelCom Semiconductor