ANX6934

ANX6934属性

---

ANX6934描述

ANX6934,8通道LED驱动器，全新原装，门市自取或当天发货。

ANX6934

8通道LED驱动器

特征

2.7V至24V的宽输入范围

集成2.8A/40V升压FET网关

封装证明和软启动

晶体电流接收器

通道的电流高达60mA

从100Hz到30kHz的PWM调光

2.5%电流匹配

3%电流精度

保护：

LED串开路/短路检测

过电压保护

过流保护

超温保护

薄3x3 mm 16WQFN封装芯

符合Rohs和10%（Pb）-



应用

笔记本电脑/笔记本电脑/平板电脑/Ultrabook

车载导航器/娱乐打开

可变功能灯

ANX6934AAQX WQFN-16L，3x3

说明：

ANX6934是一种高度的白色LED专为薄膜分析的驱动器（TFT）显示器（LCD）背光。

该芯片可以驱动多达8串LED最多可串串10个LED。宽的串输入电压范围为2.7V至24V，ANX6934非常适合应用，从单芯锂电池平板电脑到，全尺寸笔记本电脑。ANX6934 具有组合的高效率

电流模式升压。八个

集成电流接收器提供高

精密电流调节和匹配

LED电流高达60mA。反馈电路

感应LED电流接收器电压和

补偿LED的不均匀性

LED串上累积的正向电压。

为了将功率输出，输出电压

通过监控

LED字符串。未使用的LED通道可以

通过将通道连接至禁止禁止。

ANX6934通过以下方式控制LED变光

脉宽调制（PWM）方法。

LED 电流打开和关闭，以响应

词汇的占空比和频率

PWM。

ANX6934 具有多种保护功能

功能包括过电流保护（OCP），

超保护（OTP），温度

过压保护（OVP）和LED串

开路和短路检测。

如果启用，软启动将启用功能逐步输出电压，避免电压过冲和浪涌电流。如果打开一个字符串，

LED开路检测电路检测到此故障所有其他电流接收器都可以继续正常工作。



ANX6934

8 – Channel LED Driver

FEATURES

Wide input range from 2.7V to 24V

Integrated 2.8A/40V boost converter FET

Built-in loop compensation and_soft-start

Eight programmable current sinks

Current up to 60mA per channel

PWM dimming from 100Hz to 30kHz

2.5%_current matching

3%_current accuracy

Protection:

LED string open/short detection

Adjustable overvoltage protection

Over-current protection

Over-temperature protection

Thin 3x3 mm 16-lead WQFN package

Rohs compliant and_100%_Lead(Pb)-

Free/Green

APPLICATIONS

Notebook/Ultrabook/Tablet PC Display

Backlight

Car Navigator/Entertainment Display

Backlight

Flash light or utility light

ANX6934AAQX WQFN-16L, 3x3

DESCRIPTION

The ANX6934 is a highly compact white LED

driver especially optimized for thin-film transistor

(TFT) liquid crystal displays (LCDs) backlight.

The chip can drive up to eight strings of LEDs

and_up to ten LEDs in series per string. Wide

input voltage range from 2.7V to 24V makes

ANX6934 well suited for applications ranging

from a one-cell lithium-ion battery tablet PC to a

full-size notebook PC.

The ANX6934 offers a built-in high efficiency

current mode boost converter. The eight

integrated current sink regulators provide high

precision current regulation and_matching for

LED currents up to 60mA. The feedback loop

senses LED current sink voltages and_

compensates for the non-uniformity of the LED

forward voltage accumulated on the LED strings.

To minimize the power loss, the output voltage

of the boost converter is automatically adjusted

by monitoring the highest forward voltage of the

LED strings. An unused LED channel can be

disabled by connecting the channel to ground.

The ANX6934 controls LED dimming through

the pulse-width-modulation (PWM) method. The

LED current is turned on and_off in response to

the duty cycle and_frequency applied at the

PWM pin.

The ANX6934 features several protection

functions including overcurrent protection (OCP),

overtemperature protection (OTP), adjustable

overvoltage protection (OVP), and_LED string

open and_short detection. Once the device is

turned on, the soft-start function raises the

output voltage gradually to avoid voltage overshoot and_inrush current. If one string opens,

the LED open detection circuit detects this fault

and_excludes this current sink from the regulation loop. All other strings continue to work normally.


XC7SH14GV
XC7SH125GM
XC7SH125GW
XC7SH125GV
XC7SH125GF
BCX70H,235
BCX70K
PZU2.4BL,315
PESD15VS2UT
PESD15VS1UB
MC33067PG
PESD15VL2BT ESD静电二极管
MMSZ3V3T1G
BCP55-10
BCP55-16F
BCP55-10
BCP55-16
BCP55,135
PUMB15,115
PMBT2222A
PMBT2222,215 超小型管
PMBT2222
PMBT2222AYSX
PMBT2222A
PMZB150UNEYL
BC54PASX
BUK7K6R2-40EX
BUK7K6R8-40E
BCV65,215
HEF40175BT,652
HEF40175BT
BCX19
2N7002-7-F
PZU11BL,315
PZU11B1
PZU11B2L
BZT52H-C18,115
74LVC1G32GW
ZXTN2010ZTA
BCP54-16
BCP54-16
BCP54-16
BCP54-16
BCP54-16
BCP54-10
PDZ24BF
BUK969R0-60E,118
BUK969R3-100E
BCX71J,215
BCX71J
BCP56-16
BCP56T1G
BCP56-10TX
BCP56-16T1G
BCP56
BCP56-10
BCP56-16TX
BCP56-16TF
BCP56-16
74HC04D,652
74HC04D
74HC04DB
74HC04PW
74HC04PW
74HC04BQ
74HC04DB-Q100J
74HC04D-Q100
74HC04BQ-Q100
74HC04PW-Q100
PRTR5V0U4D
PRTR5V0U2X
PRTR5V0U2X
PRTR5V0U2X
PRTR5V0U2F
PRTR5V0U4Y
PRTR5V0U4D
PRTR5V0U2AX
BCX53-16
BC850C
BC850CW
BC850C
74LVCH16541ADGG:11
74LVCH16541ADGG
BAS521
BAS521
BAS521BF
BAS521BX
BAS521
BAS521
BAS521
PMGD280UN
PMGD280UN
PMGD280UN
BAS70VV,115
BC846A
BC846A/SNR
BC846A
BC846A
BC846AW
BC846A/SNVL
BC846AW
PHPT610030NKX
PMV50XPR
NZX36A,133
BFS20
PCA9515DP
PCA9517ADP
PCA9515ADP
BC56PASX
BC56PA
PMDPB30XN,115
BAS70L,315
PBRN123YT,215
PBRN123ET
2N7002PW
2N7002K-7
HEF4518BT
HEF4518BT
BCW66HR
BCW66HVL
PMG85XPH
PDZ15B
74HC9114D,118
74HC9115D
74HC9115D
74HC9114D
BCV46
NZH13B,115
TPS74901RGWR
LM2904DT
LM2902DR2G
LM2903DR2G
PUMB13,115
BUK758R3-40E,127
BAV70W,135 开关二极管
BAV70W
74HC85D,652
74HC85D
74HC85DB
74HC85PW
74HC85DB
74HC85PW
PESD24VS1UB
PESD24VL1BAZ
PESD24VS4UD
PESD24VS5UD
PESD24VU1UT
PMZB600UNEYL 低压MOS管
PMZB600UNELYL
PHP27NQ11T,127

---

ANX6934相关产品