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參數(shù)資料
| 型號(hào)： | MAX1698 |
| 廠商： | Maxim Integrated Products, Inc. |
| 英文描述： | High-Efficiency Step-Up Current Regulator for LEDs |
| 中文描述： | 高效率、升壓型穩(wěn)流器，用于LED驅(qū)動(dòng) |
| 文件頁數(shù)： | 1/4頁 |
| 文件大?。?/td> | 131K |
| 代理商： | MAX1698 |
Quick Start
The MAX1698 EV kit is fully assembled and tested.
Follow these steps to verify board operation.
Do not
turn on the power supply until all connections are
completed.
General Description
The MAX1698 evaluation kit (EV kit) is a fully assembled
and tested circuit board that contains a boost switch-
ing-regulator current source and array of white LEDs.
As configured, the circuit is set up to drive 3 banks of 3
series LED arrays at 20mA each; however, a wide vari-
ety of other configurations are possible. The IC can be
powered from a separate +2.7VDC to +5.5VDC input,
while LED power has a wider input range and can be
supplied either from a logic supply or battery source.
The MAX1698 features digital soft-start and adjustable
lossless LED current control. The MAX1698 EV kit
demonstrates low quiescent current, open-circuit pro-
tection, and up to 90% efficiency for maximum battery
life. Operation up to 500kHz allows the use of tiny sur-
face-mount components.
Features
o
Input Voltage Down to +0.8V
o
3x3 White LED Array
o
Potentiometer-Adjustable Output Current Level
(LED Brightness Control)
o
External Low-Loss N-Channel Switch
o
10nA IC Shutdown Current
o
Operation Up to 500kHz Switching Frequency
o
Surface-Mount Components
o
Fully Assembled and Tested
E
MAX1698 Evaluation Kit
________________________________________________________________
Maxim Integrated Products
For free samples and the latest literature, visit www.maxim-ic.com or phone 1-800-998-8800.
For small orders, phone 1-800-835-8769.
1
19-1677; Rev 0; 4/00
SUPPLIER
PHONE
FAX
Component List
Central
Semiconductor
516-435-1110
516-435-1824
Fairchild
Motorola
Murata
408-822-2000
602-303-5454
814-956-0666
408-822-2102
602-994-6430
847-238-0490
Nichia America
Corporation
408-573-0933
408-573-0934
PART
MAX1698EVKIT
0°C to +70°C
TEMP. RANGE
IC PACKAGE
10 μMAX
Ordering Information
Component Suppliers
24V, 350mW zener diode (SOT-23)
Central Semiconductor CMPZ5253B
1
D2
40V, 0.5A Schottky diode (SOD-123)
Motorola MBR0540T1 or
Nihon EP05Q04
1
D1
1μF, 6.3V X5R ceramic cap (0603)
Taiyo Yuden JMK107BJ105KA
1
C3
DESIGNATION
1μF, 25V X5R ceramic cap (1206)
Taiyo Yuden TMK316BJ105KL or
Murata GRM42-6X7R105K025A
1
C2
10μF, 25V X5R ceramic cap (1812)
Taiyo Yuden TMK432BJ106KM
1
C1
DESCRIPTION
QTY
D3–D11
9
White LEDs
Nichia NSPW500BS (T-1-3/4)
L1
1
10μH inductor
Sumida CDRH5D18-100NC
N1
1
30V, 2.2A, N-channel MOSFET
(SuperSOT-3)
Fairchild Semiconductor FDN337N
R1
1
500k
potentiometer
Bourns 3352E-1-504
R2, R3, R4
U1
JU1
None
None
None
None
3
1
1
1
1
1
1
15
±1% resistors (0805)
MAX1698EUB (10-pin μMAX)
3-pin header
Shunt (JU1)
MAX1698 PC board
MAX1698 data sheet
MAX1698 EV kit data sheet
Nihon USA
Sumida
Taiyo Yuden
661-867-2555
708-956-0666
408-573-4150
661-867-2698
708-956-0702
408-573-4159
Note:
Please indicate that you are using the MAX1698 when
contacting these component suppliers.
SuperSOT is a trademark of Fairchild Semiconductor.
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|---|---|
| MAX16982GUB/V+ | 功能描述:LED照明驅(qū)動(dòng)器 Automotive USB Data Line Protector RoHS:否 制造商:STMicroelectronics 輸入電壓:11.5 V to 23 V 工作頻率: 最大電源電流:1.7 mA 輸出電流: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SO-16N |
| MAX16982GUB/V+T | 功能描述:LED照明驅(qū)動(dòng)器 Automotive USB Data Line Protector RoHS:否 制造商:STMicroelectronics 輸入電壓:11.5 V to 23 V 工作頻率: 最大電源電流:1.7 mA 輸出電流: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SO-16N |
| MAX16983GUB/V+ | 功能描述:LED照明驅(qū)動(dòng)器 Automotive USB Data Line Protector RoHS:否 制造商:STMicroelectronics 輸入電壓:11.5 V to 23 V 工作頻率: 最大電源電流:1.7 mA 輸出電流: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SO-16N |
| MAX16983GUB/V+T | 功能描述:接口 - 專用 Automotive USB Data Line Protector RoHS:否 制造商:Texas Instruments 產(chǎn)品類型:1080p60 Image Sensor Receiver 工作電源電壓:1.8 V 電源電流:89 mA 最大功率耗散: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:BGA-59 |
| MAX16984RATI/V+ | 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 MAXIM NEW RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關(guān)頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數(shù)量:2 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT |
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