參數(shù)資料
型號(hào)： DS2148T
廠(chǎng)商： DALLAS SEMICONDUCTOR
元件分類(lèi)： Digital Transmission Interface
英文描述： DATACOM, PCM TRANSCEIVER, PQFP44
封裝： TQFP-44
文件頁(yè)數(shù)： 5/11頁(yè)
文件大?。?/td> 168K
代理商： DS2148T
MAX860/MAX861
50mA, Frequency-Selectable,
Switched-Capacitor Voltage Converters
3
Maxim Integrated
ELECTRICAL CHARACTERISTICS (continued)
(Typical Operating Circuit (Inverter), VDD = +5V,
–
S
—
H
—
D
—
N
–
= VDD, FC = LV = GND, C1 = C2 = 10F (Note 2), TA = TMIN to TMAX, unless
otherwise noted. Typical values are at TA = +25°C.)
Note 2:
C1 and C2 are low-ESR (<0.2
Ω) aluminum electrolytics. Capacitor ESR adds to the circuit’s output resistance. Using
capacitors with higher ESR may reduce output voltage and efficiency.
Note 3:
MAX860/MAX861 may draw high supply current during startup, up to the minimum operating supply voltage. To guaran-
tee proper startup, the input supply must be capable of delivering 90mA more than the maximum load current.
Note 4:
Specified output resistance includes the effect of the 0.2
Ω ESR of the test circuit’s capacitors.
Note 5:
The switches are driven directly at the oscillator frequency, without any division.
Note 6:
At lowest frequencies, using 10F capacitors gives worse efficiency figures than using the recommended capacitor
values in Table 3, due to larger 1 (fs x C1) term in ROUT.
–
S
—
H
—
D
—
N
–
< 0.3V
MAX860
LV = GND
No load
MAX860/MAX861, FC = VDD,
IL = 50mA to GND, C1 = C2 = 68F
MAX860,
FC = VDD
MAX861,
FC = VDD
MAX861
FC < 4V
CONDITIONS
A
10
Shutdown Supply Current
1
V
0.3
VIL
–
S
—
H
—
D
—
N
–
Threshold
1.2
VIH
%
99
99.9
Voltage-Conversion Efficiency
%
87
Power Efficiency (Note 6)
88
92
93
96
80
130
30
50
36
90
93
96
813
60
100
kHz
160
250
fS
Switching Frequency
(Note 5)
A
-2
-4
IFC
FC Current (from VDD)
UNITS
MIN
TYP
MAX
SYMBOL
PARAMETER
No load, VOUT = -4V
s
500
Time to Exit Shutdown
FC = VDD
FC = GND
FC = OUT
FC = VDD
FC = GND
FC = OUT
RL = 2kΩ from VDD
to OUT
RL = 1kΩ from OUT
to GND
RL = 2kΩ from VDD
to OUT
RL = 1kΩ from OUT
to GND
MAX86_I/E
MAX86_M
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
DS2148T+ 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
DS2148TA2 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
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
DS2148TC1 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
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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