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參數(shù)資料
| 型號： | DS21Q48 |
| 廠商： | DALLAS SEMICONDUCTOR |
| 元件分類： | Digital Transmission Interface |
| 英文描述： | DATACOM, PCM TRANSCEIVER, PBGA144 |
| 封裝： | BGA-144 |
| 文件頁數(shù)： | 7/14頁 |
| 文件大?。?/td> | 318K |
| 代理商： | DS21Q48 |
MAX8627
Low VBATT, 20A IQ, 1MHz Synchronous
Boost Converter with True Shutdown
2
Maxim Integrated
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(VOUTS = VPOUT = 5V, VON = VBATT = 3.6V, VILIM = GND, TA = -40°C to +85°C, typical values are at TA = +25
°C, unless otherwise
noted.)
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
OUTS, BATT to GND ................................................-0.3V to +6V
LX Current (Note 1) ...............................................................3.5A
AGND, PG to GND ................................................-0.3V to +0.3V
POUT to OUTS ......................................................-0.3V to +0.3V
FB, ILIM, ON to
GND.....0.3V to the higher of (VOUTS + 0.3V) and (VBATT + 0.3V)
Continuous Power Dissipation (TA = +70
°C)
14-Pin TDFN 3mm x 3mm
(derate 18.2mW/
°C above +70°C).............................1454mW
Operating Temperature Range ...........................-40
°C to +85°C
Junction Temperature ......................................................+150
°C
Storage Temperature Range .............................-65
°C to +150°C
Lead Temperature (soldering, 10s) .................................+300
°C
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
GENERAL
Operating Input Voltage Range
(Note 1)
0.9
5.5
V
Minimum Startup Voltage
No load (Note 1)
1.2
1.5
V
Maximum Startup Current Limit
0.5
A
TA = +25
°C
0.1
1
Shutdown, ON = GND
TA = +85
°C
0.2
TA = 0
°C to +85°C20
30
No load, no switching
TA = -40
°C (Note 2)
20
35
Supply Current
No load, switching
20
A
OSCILLATOR
Switching Frequency
0.95
1.0
1.05
MHz
Startup Switching Frequency
2.0
MHz
Maximum Duty Cycle
82.5
87.0
%
Output Voltage Adjust Range
3.0
5.2
V
FB Regulation Voltage
No load
1.005
1.015
1.025
V
FB Load Regulation
0A to 1A output current load step
-30
mV/A
FB Line Regulation
VBATT = 2.7V to 3V, output current = 0.5A
+20
mV
TA = +25
°C
-50
-10
+50
FB Input Leakage Current
VFB = 1.2V,
VOUTS = VPOUT = VBATT = 5.5V TA = +85
°C
-10
nA
Low level
0.25
ILIM Dual Mode Threshold
High level
0.45
V
Idle Mode Trip Level
(Note 3)
50
mA
DC-DC SWITCHES
n-Channel On-Resistance
0.15
0.25
p-Channel On-Resistance
0.15
0.25
Damping Switch On-Resistance
17
30
VILIM = 0V
3.2
3.5
3.7
n-Channel Current limit
VILIM = 0.6V
1.0
A
Dual Mode is a trademark of Maxim Integrated Products, Inc.
Note 1: LX has internal clamp diodes to the IC internal power node VPWR (where VPWR is the higher of BATT or POUT) and PG.
Applications that forward bias these diodes should take care not to exceed the device’s power-dissipation limits.
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| DS21Q48A3N | 功能描述:網絡控制器與處理器 IC 5V Quad E1/T1/J1 Line Interface RoHS:否 制造商:Micrel 產品: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 安裝風格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray |
| DS21Q48B | 功能描述:網絡控制器與處理器 IC RoHS:否 制造商:Micrel 產品: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 安裝風格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray |
| DS21Q48C | 功能描述:網絡控制器與處理器 IC RoHS:否 制造商:Micrel 產品: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 安裝風格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray |
| DS21Q48N | 功能描述:網絡控制器與處理器 IC 5V Quad E1/T1/J1 Line Interface RoHS:否 制造商:Micrel 產品: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 安裝風格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray |
| DS21Q48NB | 功能描述:網絡控制器與處理器 IC RoHS:否 制造商:Micrel 產品: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 安裝風格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray |
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