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TC7662BEOA Datasheet

  • TC7662BEOA

  • CHARGE PUMP DC-TO-DC VOLTAGE CONVERTER

  • 9頁

  • TELCOM

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EVALUATION
KIT
AVAILABLE
1
TC7662B
CHARGE PUMP DC-TO-DC VOLTAGE CONVERTER
FEATURES
s
s
s
s
s
Wide Operating Voltage Range: 1.5V to 15V
Boost Pin (Pin 1) for Higher Switching Frequency
High Power Efficiency is 96%
Easy to Use 鈥?Requires Only 2 External Non-Critical
Passive Components
Improved Direct Replacement for Industry Stan-
dard ICL7660 and Other Second Source Devices
GENERAL DESCRIPTION
The TC7662B is a pin-compatible upgrade to the Indus-
try standard TC7660 charge pump voltage converter. It
converts a +1.5V to +15V input to a corresponding 鈥?1.5 to
鈥?15V output using only two low-cost capacitors, eliminating
inductors and their associated cost, size and EMI.
The on-board oscillator operates at a nominal fre-
quency of 10kHz. Frequency is increased to 35kHz when
pin 1 is connected to V+, allowing the use of smaller external
capacitors. Operation below 10kHz (for lower supply current
applications) is also possible by connecting an external
capacitor from OSC to ground (with pin 1 open).
The TC7662B is available in both 8-pin DIP and 8-pin
small outline (SO) packages in commercial and extended
temperature ranges.
2
3
4
5
6
APPLICATIONS
s
s
s
s
s
Simple Conversion of +5V to
鹵
5V Supplies
Voltage Multiplication V
OUT
=
鹵
nV
IN
Negative Supplies for Data Acquisition Systems
and Instrumentation
RS232 Power Supplies
Supply Splitter, V
OUT
=
鹵
V
S
/2
ORDERING INFORMATION
Part No.
TC7662BCOA
TC7662BCPA
TC7662BEOA
TC7662BEPA
PIN CONFIGURATION
(DIP and SOIC)
BOOST 1
CAP + 2
8 V+
7 OSC
BOOST 1
CAP + 2
GND 3
CAP 鈥?4
8 V+
7 OSC
TC7662BCOA 6 LOW
VOLTAGE (LV)
TC7662BEOA
5 VOUT
Package
8-Pin SOIC
8-Pin Plastic DIP
8-Pin SOIC
8-Pin Plastic DIP
Temperature
Range
0擄C to +70擄C
0擄C to +70擄C
鈥?40擄C to +85擄C
鈥?40擄C to +85擄C
GND 3 TC7662BCPA 6 LOW
VOLTAGE (LV)
TC7662BEPA
5 VOUT
CAP 鈥?4
TC7660EV
Evaluation Kit for
Charge Pump Family
FUNCTIONAL BLOCK DIAGRAM
V + CAP +
8
BOOST
1
2
OSC
7
RC
OSCILLATOR
梅2
VOLTAGE鈥?/div>
LEVEL
TRANSLATOR
4
CAP 鈥?/div>
LV
6
5
INTERNAL
VOLTAGE
REGULATOR
LOGIC
NETWORK
VOUT
7
TC7662B
3
GND
8
TC7662B-8 9/11/96
TELCOM SEMICONDUCTOR, INC.
4-83

TC7662BEOA 產(chǎn)品屬性

  • 100

  • 集成電路 (IC)

  • PMIC - 穩(wěn)壓器 - DC DC 開關穩(wěn)壓器

  • -

  • 切換式電容器（充電泵），反相

  • 可調式

  • 1

  • -1.5 V ~ -15 V

  • 1.5 V ~ 15 V

  • -

  • 10kHz ~ 35kHz

  • 20mA

  • 無

  • -40°C ~ 85°C

  • 表面貼裝

  • 8-SOIC（0.154"，3.90mm 寬）

  • 管件

  • 8-SOICN

  • 158-1060158-1060-ND

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