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參數(shù)資料
| 型號： | DS1244Y |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | Timer or RTC |
| 英文描述： | 0 TIMER(S), REAL TIME CLOCK, PDIP28 |
| 封裝： | 0.740 INCH, PLASTIC, DIP-28 |
| 文件頁數(shù)： | 12/21頁 |
| 文件大?。?/td> | 1965K |
| 代理商： | DS1244Y |
MAX17129/MAX17149
Low-Cost, 6-String WLED Drivers with
Quick-PWM Step-Up Converter
2
FSEL, IN, BRT, EN to GND ..................................-0.3V to +28V
FB_, LX, OVP to PGND .........................................-0.3V to +48V
PGND to GND ......................................................-0.3V to +0.3V
VCC to GND.............................................................-0.3V to +6V
ISET to GND............................................... -0.3V to VCC + 0.3V
LX Switch Continuous RMS Current.....................................1.6A
Continuous Power Dissipation (TA = +70NC)
16-Pin Thin QFN (derate 14.7mW/NC above +70NC) .. 1176mW
Operating Temperature Range.......................... -40NC to +85NC
Junction Temperature .....................................................+150NC
Storage Temperature Range............................ -60NC to +150NC
ESD
HBM .................................................................................±2kV
MM ................................................................................ ±200V
Lead Temperature (soldering, 10s) ................................+300NC
Soldering Temperature (reflow) ......................................+260NC
ELECTRICAL CHARACTERISTICS
(Circuit of Figure 1. VIN = 12V, RISET = 100kI, TA = 0°C to +85°C, unless otherwise noted. Typical values are at TA = +25NC.) (Note 1)
ABSOLUTE MAXIMUM RATINGS
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.
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
IN Input Voltage Range
IN not connected to VCC
6
V
IN connected to VCC
3.0
5.5
IN Standby Current
VEN = 3V, VIN = 26V, no external loads
3.2
4
mA
VEN = 0V, VIN = 26V
0.1
5
A
VCC Output Voltage
VEN = 3V, 0 < IVCC < 10mA
3.6
3.8
4.0
V
VCC Current Limit
VCC is forced to 3.5V; IN not connected to VCC
15
30
45
mA
VCC UVLO Threshold
Rising edge, typical hysteresis = 100mV
2.75
2.8
2.85
V
IN UVLO Threshold
Rising edge, typical hysteresis = 100mV;
IN not connected to VCC
5.5
5.75
5.9
V
STEP-UP CONVERTER
LX On-Resistance
100mA from LX to PGND
250
500
mω
LX Leakage Current
VLX = 40V, TA = +25NC
0.05
1
A
Off-Time
FSEL = GND, VIN = 12V, VOVP = 22V
450
500
550
ns
FSEL = VCC, VIN = 12V, VOVP = 22V
900
1000
1100
LX Peak Current Limit
Duty cycle = 75%
2.5
3
3.5
A
Minimum On-Time
50
ns
Minimum Output Regulation
Voltage
MAX17129 only
15
16.5
18
V
MAX17149 only
6.8
8.3
9.8
V
Maximum Output Regulation
Voltage
MAX17129 only
41.5
43
44.5
V
MAX17149 only
23.9
25.4
26.9
V
INPUT LEAKAGE/BIAS CURRENTS
EN Bias Current
0.3V < VEN < 3.5V, TA = +25°C
6
A
4.1V < VEN < 26V, TA = +25°C
110
BRT Bias Current
0.3V < VBRT < 3.5V, TA = +25°C
15
A
4.1V < VBRT < 26V, TA = +25°C
2000
EN Input Impedance
750
1500
kω
OVP Input Current
MAX17129 only; VOVP = 40V, VFB = 0.75V
15
50
A
MAX17149 only; VOVP = 20V, VFB = 0.75V
7.5
25
A
FSEL Bias Current
0.3V < VFSEL < 3.5V, TA = +25°C
6
A
4.1V < VFSEL < 26V, TA = +25°C
2000
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DS1244Y120 | 制造商:Maxim Integrated Products 功能描述: |
| DS1244Y-120 | 制造商:Maxim Integrated Products 功能描述: |
| DS1244Y-150 | 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述: |
| DS1244Y-200 | 制造商:DALLAS 制造商全稱:Dallas Semiconductor 功能描述:256K NV SRAM with Phantom Clock |
| DS1244Y-70 | 功能描述:實時時鐘 RoHS:否 制造商:Microchip Technology 功能:Clock, Calendar. Alarm RTC 總線接口:I2C 日期格式:DW:DM:M:Y 時間格式:HH:MM:SS RTC 存儲容量:64 B 電源電壓-最大:5.5 V 電源電壓-最小:1.8 V 最大工作溫度:+ 85 C 最小工作溫度: 安裝風(fēng)格:Through Hole 封裝 / 箱體:PDIP-8 封裝:Tube |
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