KTD2694中文資料芯凱電子數(shù)據(jù)手冊PDF規(guī)格書
KTD2694規(guī)格書詳情
Features
? Drive up to 1.5A flash current
? Programmable threshold low-voltage input
protection
? High efficiency converter (up to 90)
? Input voltage range: 2.7V to 5.5V
? 2MHz step-up converter
? Very small inductor: 1.0μH to 2.2μH
? Very small load capacitor: 4.7μF to 10μF
? ExpressWireTM digital control enables and
programs flash and movie current in 16 steps
? External resistor sets maximum flash current
? Integrated thermal regulation control
? 2mA LED shorting test current and 1.7V
forward voltage threshold
? LED open/short protection
? Over-voltage protection
? Cycle-by-cycle inductor current limit
? Programmable flash timeout protection
? 0.1μA shutdown current
? Pb-free Package: UDFN22-10L
? -40°C to +85°C Temperature Range
Applications
? Mobile Phones
? Smart Phones and PDAs
? Digital Still Cameras
Brief Description
KTD2694 is the ideal power solution for high-power flash
LEDs used with cell phone camera modules or digital still
cameras. It is a highly integrated step up DC-DC converter
with very high switching frequency, fixed at 2MHz,
providing a very small total solution for portable photo
flash. KTD2694 uses ExpressWire single-wire
programming for maximum flexibility. The maximum flashmode
LED current is set by an external resistor, and the
flash-mode and movie-mode currents can be programmed
in 16 steps by the ExpressWire interface at CTRL pin. An
AUX pin allows highest priority ON/OFF flash mode
control. KTD2694 internally monitors the input voltage,
disabling LED current when the supply drops below the
programmed threshold voltage.
The LED output sink can drive up to 1.5A continuous LED
current. Thermal regulation is integrated in flash mode to
limit the IC’s temperature and continuously provide the
maximum allowed output current.
Various protection features are built into KTD2694,
including cycle-by-cycle input current limit protection,
output over-voltage protection, LED fault (open or short)
protection, flash timeout protection and thermal shutdown
protection. The leakage current in shutdown mode is
0.1μA.
KTD2694 is available in a RoHS and Green compliant
10-lead 2mm x 2mm x 0.52mm UDFN package.
供應商 | 型號 | 品牌 | 批號 | 封裝 | 庫存 | 備注 | 價格 |
---|---|---|---|---|---|---|---|
KEC |
2020+ |
TO-92 |
80000 |
只做自己庫存,全新原裝進口正品假一賠百,可開13%增 |
詢價 | ||
KINETIC |
14+ |
QFN2X2-6 |
404900 |
一級代理,專注軍工、汽車、醫(yī)療、工業(yè)、新能源、電力 |
詢價 | ||
KTD |
1822+ |
TDFN22 |
6852 |
只做原裝正品假一賠十為客戶做到零風險!! |
詢價 | ||
KEC |
23+ |
NA |
19960 |
只做進口原裝,終端工廠免費送樣 |
詢價 | ||
KINETIC |
22+ |
TDFN22 |
30000 |
十七年VIP會員,誠信經(jīng)營,一手貨源,原裝正品可零售! |
詢價 | ||
KEC |
23+ |
TO-126 |
90000 |
只做原廠渠道價格優(yōu)勢可提供技術支持 |
詢價 | ||
KINEFIC |
21+ |
QFN |
2215 |
原裝現(xiàn)貨假一賠十 |
詢價 | ||
KINET |
23+ |
NA/ |
400 |
優(yōu)勢代理渠道,原裝正品,可全系列訂貨開增值稅票 |
詢價 | ||
KTD芯凱 |
23+ |
SOT23-6 |
13000 |
原廠授權一級代理,專業(yè)海外優(yōu)勢訂貨,價格優(yōu)勢、品種 |
詢價 | ||
KINETC |
2023+ |
TDFN-6 |
5185 |
全新原廠原裝產(chǎn)品、公司現(xiàn)貨銷售 |
詢價 |