參數(shù)資料
型號： DS2148T
廠商： DALLAS SEMICONDUCTOR
元件分類： Digital Transmission Interface
英文描述： DATACOM, PCM TRANSCEIVER, PQFP44
封裝： TQFP-44
文件頁數(shù)： 1/11頁
文件大小： 168K
代理商： DS2148T
19-0239; Rev 3; 8/13
MAX860/MAX861
50mA, Frequency-Selectable,
Switched-Capacitor Voltage Converters
For pricing, delivery, and ordering information, please contact Maxim Direct
at 1-888-629-4642, or visit Maxim’s website at www.maximintegrated.com.
_______________General Description
The MAX860/MAX861 charge-pump voltage converters
invert input voltages ranging from +1.5V to +5.5V, or
double input voltages ranging from +2.5V to +5.5V.
Because of their high switching frequencies, these
devices use only two small, low-cost capacitors. Their
50mA output makes switching regulators unnecessary,
eliminating inductors and their associated cost, size,
and EMI. Greater than 90% efficiency over most of the
load-current range, combined with a typical operating
current of only 200A (MAX860), provides ideal perfor-
mance for both battery-powered and board-level volt-
age-conversion applications.
A frequency-control (FC) pin provides three switching-
frequencies to optimize capacitor size and quiescent
current and to prevent interference with sensitive cir-
cuitry. Each device has a unique set of three available
frequencies. A shutdown (S
—
H
—
D
—
N
–
) pin reduces current
consumption to less than 1A. The MAX860/MAX861
are suitable for use in applications where the ICL7660
and MAX660's switching frequencies are too low. The
MAX860/MAX861 are available in 8-pin MAX and
SO packages.
________________________Applications
Portable Computers
Medical Instruments
Interface Power Supplies
Hand-Held Instruments
Operational-Amplifier Power Supplies
____________________________Features
o 8-Pin, 1.11mm High MAX Package
o Invert or Double the Input Supply Voltage
o Three Selectable Switching Frequencies
o High Frequency Reduces Capacitor Size
o 87% Efficiency at 50mA
o 200A Quiescent Current (MAX860)
o 1A Shutdown Supply Current
o 600mV Voltage Drop at 50mA Load
o 12Ω Output Resistance
______________Ordering Information
1
+
2
3
4
8
7
6
5
VDD
SHDN
LV
OUT
C1-
GND
C1+
FC
MAX860
MAX861
SO/
μMAX
TOP VIEW
__________________Pin Configuration
1
2
3
4
8
7
6
5
FC
C1+
GND
C1-
OUT
LV
SHDN
VDD
MAX860
MAX861
1
2
3
4
8
7
6
5
FC
C1+
GND
C1-
OUT
LV
SHDN
VDD
MAX860
MAX861
INPUT
VOLTAGE
+1.5V TO +5.5V
INVERTED
NEGATIVE
OUTPUT
INPUT
VOLTAGE
+2.5V TO +5.5V
DOUBLED
POSITIVE
OUTPUT
10
μF
10
μF
10
μF
10
μF
C1
C2
VOLTAGE INVERTER
POSITIVE VOLTAGE DOUBLER
PART
TEMP RANGE
PIN-PACKAGE
MAX860ISA
-25°C to +85°C
8 SO
MAX860IUA
-25°C to +85°C
8 MAX
MAX860C/D
0°C to +70°C
Dice*
MAX860ESA
-40°C to +85°C
8 SO
MAX860MJA
-55°C to +125°C
8 CERDIP
MAX860MSA/PR3
-55°C to +125°C
8 SO
MAX861ISA
-25°C to +85°C
8 SO
MAX861IUA
-25°C to +85°C
8 MAX
MAX861C/D
0°C to +70°C
Dice*
MAX861ESA
-40°C to +85°C
8 SO
MAX861MJA
-55°C to +125°C
8 CERDIP
__________Typical Operating Circuit
*
Dice are tested at TA = +25°C, DC parameters only.
Contact factory for availability.
MAX is a registered trademark of Maxim Integrated Products, Inc.
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DS2148TB 功能描述:網(wǎng)絡(luò)控制器與處理器 IC RoHS:否 制造商:Micrel 產(chǎn)品:Controller Area Network (CAN) 收發(fā)器數(shù)量: 數(shù)據(jù)速率: 電源電流（最大值）:595 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray
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DS2148TN 功能描述:網(wǎng)絡(luò)控制器與處理器 IC 5V E1/T1/J1 Line Interface RoHS:否 制造商:Micrel 產(chǎn)品:Controller Area Network (CAN) 收發(fā)器數(shù)量: 數(shù)據(jù)速率: 電源電流（最大值）:595 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray
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