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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)： | 18/21頁 |
| 文件大?。?/td> | 1965K |
| 代理商： | DS1244Y |
MAX17129/MAX17149
Low-Cost, 6-String WLED Drivers with
Quick-PWM Step-Up Converter
6
Typical Operating Characteristics
(Circuit of Figure 1. VIN = 12V, TA = +25°C, unless otherwise noted.)
LED CURRENT (ILED = 20mA AT
100% BRIGHTNESS) vs. INPUT VOLTAGE
MAX17129
toc04
INPUT VOLTAGE (V)
LED
CURRENT
(mA)
23
20
17
14
11
8
20.05
20.10
20.15
20.20
20.00
5
26
LED CURRENT (ILED = 20mA AT
10% BRIGHTNESS) vs. INPUT VOLTAGE
MAX17129
toc05
INPUT VOLTAGE (V)
LED
CURRENT
(mA)
23
20
17
14
11
8
2.00
2.02
2.04
2.06
1.98
5
26
IN QUIESCENT CURRENT
vs. IN VOLTAGE
MAX17129
toc06
IN VOLTAGE (V)
IN
QUIESCENT
CURRENT
(mA)
23
20
17
14
11
8
1
2
3
4
5
6
0
5
26
100% BRIGHTNESS
200Hz /1% BRIGHTNESS
STARTUP WAVEFORMS
(BRIGHTNESS = 100%)
MAX17129 toc07
VEN
5V/div
VLX
50V/div
0V
0A
VOUT
20V/div
INDUCTOR
CURRENT
500mA/div
4ms/div
12V
BOOST CONVERTER EFFICIENCY
vs. INPUT VOLTAGE
(VOUT = 31.8V/IOUT = 120mA,
BRIGHTNESS = 100%)
MAX17129
toc01
INPUT VOLTAGE (V)
EFFICIENCY
(%)
23
20
8
11
14
17
80
82
84
86
88
90
92
94
78
5
26
BOOST CONVERTER EFFICIENCY
vs. BRIGHTNESS
(VIN = 12V, VOUT = 31.8V/IOUT = 120mA
AT 100%)
MAX17129
toc02
BRIGHTNESS (%)
EFFICIENCY
(%)
80
60
40
20
60
70
80
90
50
0
100
LED CURRENT vs. BRIGHTNESS SETTING
MAX17129
toc03
PWM DUTY CYCLE (%)
LED
CURRENT
(mA)
80
60
40
20
5
10
15
20
0
100
fBRT = 200Hz
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| DS1245AB-100 | 128K X 8 NON-VOLATILE SRAM MODULE, 100 ns, DMA32 |
| DS1245Y-120 | 128K X 8 NON-VOLATILE SRAM MODULE, 120 ns, DMA32 |
| DS1245AB-85 | 128K X 8 NON-VOLATILE SRAM MODULE, 85 ns, DMA32 |
| DS1245Y-85 | 128K X 8 NON-VOLATILE SRAM MODULE, 85 ns, DMA32 |
| DS1245Y-70 | 128K X 8 NON-VOLATILE SRAM MODULE, 70 ns, DMA32 |
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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