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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)： | 16/21頁 |
| 文件大?。?/td> | 1965K |
| 代理商： | DS1244Y |
MAX17129/MAX17149
Low-Cost, 6-String WLED Drivers with
Quick-PWM Step-Up Converter
4
ELECTRICAL CHARACTERISTICS
(Circuit of Figure 1. VIN = 12V, RISET = 100kI, TA = -40NC to +85NC, unless otherwise noted.) (Note 1)
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
IN Input Voltage Range
IN not connected to VCC
6
26
V
IN = VCC
3
5.5
IN Quiescent Current
VEN = 3V, VIN = 26V, no external loads
4
mA
VEN = 0V, VIN = 26V
5
A
VCC Output Voltage
VEN = 3V, 0 < IVCC < 10mA
3.6
4.0
V
VCC Current Limit
VCC is forced to 3.5V; IN not connected to VCC
15
45
mA
VCC UVLO Threshold
Rising edge, typical hysteresis = 100mV
2.75
2.85
V
IN UVLO Threshold
Rising edge, typical hysteresis = 100mV;
IN not connected to VCC
5.5
5.9
V
STEP-UP CONVERTER
LX On-Resistance
100mA from LX to PGND
500
mω
LX Leakage Current
VLX = 40V, TA = +25NC
1
F
A
Off-Time
FSEL = GND VIN = 12V, VOVP = 22V
450
550
ns
FSEL = VCC, VIN = 12V, VOVP = 22V
900
1100
LX Peak Current Limit
Duty cycle = 75%
2.5
3.65
A
Minimum Output Regulation
Voltage
MAX17129 only
15
18
V
MAX17149 only
6.8
9.8
V
Maximum Output Regulation
Voltage
MAX17129 only
41.5
44.5
V
MAX17149 only
23.9
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
kω
OVP Input Current
MAX17129 only; VOVP = 40V, TA = +25°C, VFB = 0.75V
50
A
MAX17149 only; VOVP = 20V, TA = +25°C, VFB = 0.75V
25
FSEL Bias Current
0.3V < VFSEL < 3.5V
6
A
4.1V < VFSEL < 26V
2000
LED CURRENT SOURCE
ISET Resistance Range
44
250
kω
Full-Scale FB_ Output Current
RISET = 44.44kω
43.3
47.7
mA
RISET = 66.66kω
29.1
30.9
RISET = 100kω
19.4
20.6
RISET = 133.33kω
14.55
15.45
RISET = 200kω
9.65
10.35
RISET = 100kω, hybrid dimming mode
4.4
5.6
RISET = 250kω, hybrid dimming mode
1.4
2.6
ISET Output Voltage
1.225
1.275
V
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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(shí)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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