參數(shù)資料
型號： DS2148TN
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)： 10/16頁
文件大?。?/td> 603K
代理商： DS2148TN
MAX8625A
High-Efficiency, Seamless Transition,
Step-Up/Down DC-DC Converter
_______________________________________________________________________________________
3
Note 2: The device is production tested at TA = +25°C. Specifications over the operating temperature range are guaranteed by
design and characterization.
Note 3: Limits are guaranteed by design and not production tested.
Note 4: The idle-mode current threshold is the transition point between fixed-frequency PWM operation and idle-mode operation.
The specification is given in terms of output load current for an inductor value of 3.3H. For the step-up mode, the idle-mode
transition varies with input to the output-voltage ratios.
ELECTRICAL CHARACTERISTICS (continued)
(VIN = 3.6V, ON = SKIP = IN, FB = GND, VOUT = 3.3V, LX_ unconnected, CREF = C5 = 0.1F to GND, Figure 4. TA = -40°C to +85°C.
Typical values are at TA = +25°C, unless otherwise noted.) (Note 2)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
FB Dual-Mode Threshold
VFBDM
75
100
125
mV
VFB = 1.3V, TA = +25°C
0.001
0.1
FB Leakage Current
IFB
VFB = 1.3V, TA = +85°C
0.01
A
ON, SKIP Input High Voltage
VIH
2.5V < VIN < 5.5V
1.6
V
ON, SKIP Input Low Voltage
VIL
2.5V < VIN < 5.5V
0.45
V
2.5V < VIN < 5.5V, TA = +25°C
0.001
1
ON Input Leakage Current
IIHL
TA = +85°C
0.01
A
ISKIPH
VSKIP = 3.6V
3
12
SKIP Input Leakage Current
ISKIPL
VSKIP = 0V
-2
-0.2
A
Peak Current Limit
ILIMP
LX1 PMOS
1700
2000
2300
mA
Fault Latch-Off Delay
100
ms
Each MOSFET, TA = +25°C
0.05
0.1
MOSFET On-Resistance
RON
Each MOSFET, VIN = 2.5V to 5.5V,
TA = -40°C to +85°C
0.2
Rectifier-Off Current Threshold
ILX1OFF
SKIP = GND
125
mA
SKIP = GND, load decreasing
100
Idle-Mode Current Threshold
(Note 4)
ISKIP
Load increasing
300
mA
VIN = VOUT = 5.5V, VLX1 = 0V to VIN,
VLX2 = 0V to VOUT, TA = +25°C
0.01
1
LX1, LX2 Leakage Current
ILXLKG
TA = +85°C
0.2
A
VIN = VLX1 = VLX2 = 0V, VOUT = 5.5V,
measure I (LX2), TA = +25°C
0.01
1
Out Reverse Current
ILXLKGR
TA = +85°C
0.5
A
Minimum TON
TONMIN
25
%
OSC Frequency
FOSCPWM
850
1000
1150
kHz
Thermal Shutdown
15°C hysteresis
+165
°C
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參數(shù)描述
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
DS2148TNB 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
DS2148TNC 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-W 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
DS2149 制造商:未知廠家 制造商全稱:未知廠家 功能描述:5V T1/J1 Line Interface Unit
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