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参数资料
型号： DS2148T
厂商： DALLAS SEMICONDUCTOR
元件分类： Digital Transmission Interface
英文描述： DATACOM, PCM TRANSCEIVER, PQFP44
封装： TQFP-44
文件页数： 6/11页
文件大小： 168K
代理商： DS2148T
MAX860/MAX861
50mA, Frequency-Selectable,
Switched-Capacitor Voltage Converters
4
Maxim Integrated
__________________________________________Typical Operating Characteristics
(All curves generated using the inverter circuit shown in the
Typical Operating Circuits with LV = GND and TA = +25°C, unless other-
wise noted. Test results also valid for doubler mode with LV = OUT and TA = +25°C. All capacitor values used are those recom-
mended in Table 3, unless otherwise noted. The output resistance curves represent the resistance of the device itself, which is RO in
the equation for ROUT shown in the Capacitor Selection section.)
0.7
0
OUTPUT VOLTAGE DROP FROM
SUPPLY VOLTAGE vs. LOAD CURRENT
0.8
MAX860-01
LOAD CURRENT (mA)
V
OUT
DROP
(V)
30
0.4
0.2
10
20
50
0.6
40
0.1
0.3
0.5
VDD = +1.5V
VDD = +2.5V
VDD = +3.5V
VDD = +4.5V, +5.0V
VDD = +5.5V
ALL FREQUENCIES
2
-14
1.5
2.0
3.0
4.0
OSCILLATOR FREQUENCY vs.
SUPPLY VOLTAGE
-6
0
MAX860-02
SUPPLY VOLTAGE (V)
PERCENTAGE
FREQUENCY
CHANGE
(%)
(FROM
FREQUENCY
MEASURED
WITH
V
DD
=
+5V)
2.5
3.5
-2
-4
4.5
5.0
5.5
-8
-10
-12
ALL FREQUENCIES,
LV CONNECTED TO GND
(INVERTER) OR OUT (DOUBLER)
1.0
20
0
01
3
5
OUTPUT SOURCE RESISTANCE (RO) vs.
SUPPLY VOLTAGE
4
16
MAX860-03
SUPPLY VOLTAGE (V)
OUTPUT
SOURCE
RESISTANCE
(Ω
)
24
12
8
2
6
10
14
18
ALL FREQUENCIES
32
0
-60
-20
40
140
OUTPUT SOURCE RESISTANCE (RO) vs.
TEMPERATURE
8
28
MAX860-04
TEMPERATURE (
°C)
OUTPUT
SOURCE
RESISTANCE
(Ω
)
20
100
24
16
-40
0
60
80
120
20
12
4
VDD = +3V
VDD = +5V
VDD = +1.5V
ALL FREQUENCIES
0
MAX861 SUPPLY CURRENT
vs. SUPPLY VOLTAGE
MAX860-07
SUPPLY VOLTAGE (V)
SUPPLY
CURRENT
(μ
A)
100
200
300
500
12
3
4
5
6
400
DOUBLER, LV = OUT
INVERTER, LV = GND
FC = VDD
100
0
0.01
1
100
MAX860
EFFICIENCY vs. LOAD CURRENT
20
MAX860-05
LOAD CURRENT (mA)
EFFICIENCY
(%)
40
60
80
10
30
50
70
90
0.1
10
INVERTER
FC = VDD
VDD = +1.5V
VDD = +3V
VDD = +5V
0
MAX860 SUPPLY CURRENT
vs. SUPPLY VOLTAGE
MAX860-06
SUPPLY VOLTAGE (V)
SUPPLY
CURRENT
(μ
A)
100
200
300
500
12
3
4
5
6
400
DOUBLER, LV = OUT
INVERTER, LV = GND
(VDD > 3V)
FC = VDD
70
0
0.33
MAX860 OUTPUT CURRENT vs. CAPACITANCE
HIGH-FREQUENCY MODE
MAX860-08
CAPACITANCE (
μF)
OUTPUT
CURRENT
(mA)
4.7
40
20
1
2.2
22
60
10
30
50
VIN = +4.5V, VOUT = -3.5V
VIN = +4.5V, VOUT = -4V
VIN = +3V, VOUT = -2.4V
VIN = +3V, VOUT = -2.7V
fOSC = 130kHz
FC = OUT
LV = GND
INVERTER MODE
80
70
0
0.33
MAX860 OUTPUT CURRENT vs. CAPACITANC
MEDIUM-FREQUENCY MODE
MAX860-09
CAPACITANCE (
μF)
OUTPUT
CURRENT
(mA)
4.7
40
20
1
2.2
22
60
10
30
50
VIN = +4.5V, VOUT = -3.5V
VIN = +3V, VOUT = -2.4V
VIN = +4.5V, VOUT = -4V
VIN = +3V, VOUT = -2.7V
fOSC = 50kHz
FC = GND
LV = GND
INVERTER MODE
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相关代理商/技术参数
参数描述
DS2148T+ 功能描述:网络控制器与处理器 IC 5V E1/T1/J1 Line Interface RoHS:否 制造商:Micrel 产品:Controller Area Network (CAN) 收发器数量: 数据速率: 电源电流（最大值）:595 mA 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:PBGA-400 封装:Tray
DS2148TA2 功能描述:网络控制器与处理器 IC 5V E1/T1/J1 Line Interface RoHS:否 制造商:Micrel 产品:Controller Area Network (CAN) 收发器数量: 数据速率: 电源电流（最大值）:595 mA 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:PBGA-400 封装:Tray
DS2148TB 功能描述:网络控制器与处理器 IC RoHS:否 制造商:Micrel 产品:Controller Area Network (CAN) 收发器数量: 数据速率: 电源电流（最大值）:595 mA 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:PBGA-400 封装:Tray
DS2148TC1 功能描述:网络控制器与处理器 IC RoHS:否 制造商:Micrel 产品:Controller Area Network (CAN) 收发器数量: 数据速率: 电源电流（最大值）:595 mA 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:PBGA-400 封装:Tray
DS2148TN 功能描述:网络控制器与处理器 IC 5V E1/T1/J1 Line Interface RoHS:否 制造商:Micrel 产品:Controller Area Network (CAN) 收发器数量: 数据速率: 电源电流（最大值）:595 mA 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:PBGA-400 封装:Tray
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