KTD2041中文資料芯凱電子數(shù)據(jù)手冊(cè)PDF規(guī)格書
KTD2041規(guī)格書詳情
Features
? 2.7V to 5.5V Input Voltage Operating Range
? Nine High-Precision Current Sinks
? LED Current Up to 32mA per Channel
? ±1 Typical Current Matching
? ±2 Typical Current Accuracy at 32mA
? 6-bit Current Dimming Control with I2C
? Independent On/Off Control
? Supports both Independent and Global Dimming
? High Efficiency Buck Regulator
? Integrated 200mΩ / 100mΩ High / Low-Side FET
? Adaptive On-Time Control with default 1MHz
Switching Frequency, with factory programmable
1.5MHz, 2MHz, and 2.5MHz options.
? Adaptive VOUT Control Based on the Headroom
Voltages of the LED Current Sinks.
? Selectable Auto-Skip Mode or Forced-PWM mode
at Light Loads
? 140μA Typical No-Load Supply Current
? Open-Drain ?F??A??U??L??T? Signal Output and Fault Reset
? Extensive Fault Diagnostics
? -40°C - 85°C Operating Ambient Temperature Range
Small UQFN-20 (3mm x 3mm) Package
Applications
? IR LED Drivers
? Video Door Bells
? Security Cameras
? IRIS Recognition Cameras
Brief Description
The KTD2041 is an ideal power solution for IR LED
driver with an integrated buck regulator. It has 9 highprecision
current sinks that can be independently
controlled via I2C interface.
The buck regulator has an input voltage operating range
from 2.7V to 5.5V to accommodate 1-cell lithium- ion
batteries or 5V voltage rail. It has adaptive output
voltage control based on the headroom voltages of the
LED current sinks to minimize the power consumption.
It has integrated high-side and low-side power FET. The
buck regulator features advanced adaptive On- Time
control with 1MHz switching frequency, which minimizes
external component counts and allows the use of a very
small inductor and capacitor.
The KTD2041 has 9 built-in current sinks, which features
independent On/Off control and 6-bit independent
current dimming via I2C interface. The KTD2041 has
extensive built-in protection features including cycle-bycycle
current limit, input undervoltage Lockout (UVLO),
output over-voltage protection, LED fault (open or short)
protection and thermal shutdown protection.
The KTD2041 is available in a RoHS and Green
compliant 3mm x 3mm UQFN package.
| 供應(yīng)商 | 型號(hào) | 品牌 | 批號(hào) | 封裝 | 庫(kù)存 | 備注 | 價(jià)格 |
|---|---|---|---|---|---|---|---|
KEC |
23+ |
NA/ |
3307 |
原裝現(xiàn)貨,當(dāng)天可交貨,原型號(hào)開票 |
詢價(jià) | ||
KEC |
2020+ |
TO-220F |
80000 |
只做自己庫(kù)存,全新原裝進(jìn)口正品假一賠百,可開13%增 |
詢價(jià) | ||
YEASHIN |
24+ |
NA |
990000 |
明嘉萊只做原裝正品現(xiàn)貨 |
詢價(jià) | ||
長(zhǎng)電 |
22+23+ |
TO-220F |
24631 |
絕對(duì)原裝正品全新進(jìn)口深圳現(xiàn)貨 |
詢價(jià) | ||
KEC |
TO-220 |
68900 |
原包原標(biāo)簽100%進(jìn)口原裝常備現(xiàn)貨! |
詢價(jià) | |||
KEC |
23+ |
TO-220F |
4500 |
全新原裝、誠(chéng)信經(jīng)營(yíng)、公司現(xiàn)貨銷售 |
詢價(jià) | ||
CJ/長(zhǎng)電 |
22+ |
TO-220F |
18490 |
原裝正品現(xiàn)貨,可開13點(diǎn)稅 |
詢價(jià) | ||
NA |
19+ |
76843 |
原廠代理渠道,每一顆芯片都可追溯原廠； |
詢價(jià) | |||
KEC |
24+ |
TO-220 |
22000 |
詢價(jià) | |||
KEC |
24+ |
TO-220F |
16800 |
絕對(duì)原裝進(jìn)口現(xiàn)貨,假一賠十,價(jià)格優(yōu)勢(shì)!? |
詢價(jià) |
