Datasheet > AAT1274

AAT1274

更新时间： 2022-02-26 14:04:33

品牌	Logo	应用领域
思佳讯 - SKYWORKS		/
页数	文件大小	规格书
17页	2053K
描述
1.5A Single Flash LED Driver IC

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AAT1274 数据手册

DATA SHEET

AAT1274

1.5A Single Flash LED Driver IC

Electrical Characteristics

V_IN= 3.6V; C_IN= C_OUT= 2.2ꢀF; R_SET= 107kΩ; L = 1ꢀH. T_A= -40^oC to 85°C unless otherwise noted. Typical values are

at T_A= 25°C.

Symbol Description

Conditions

Min Typ Max Units

Power Supply – Switching Flash Driver

V_IN

V_OUT(MAX)

Input Voltage Range

Maximum Output Voltage

2.7

5.5

EN/SET = FLEN = IN, Set FL Load = 1.5A

EN/SET = IN, FLEN = AGND

EN/SET, FLEN, = AGND

R_SET= 107kꢁ

R_SET= 107kꢁ = 1.2A

0.67

0.23

I_IN(Q)

Supply Current

I_SHDN(MAX)

I_FL

I_FL(ACC)

I_MM(LOAD)

F_OSC

Input Shutdown Current

Output Current, Flash Mode

Flash Current Accuracy

Total Output Current, Movie Mode

Switching Frequency

Over-Temperature Shutdown Threshold

Over-Temperature Shutdown Hysteresis

1.0

ꢀA

MHz

°C

1.2

1.5

±10

206

2.0

140

R_SET= 107kꢁ, Movie mode current set to 100%

T_A= 25°C

2.5

T_SD

T_SD(HYS)

°C

EN/SET, FLEN

V_EN/SET(H)

V_FLEN(H)

V_EN/SET(L)

V_FLEN(L)

EN/SET, FLEN Input High Threshold

EN/SET, FLEN Input Low Threshold

1.4

0.4

_EN/SET,I_FLENEN/SET, FLEN Input Leakage Current

V_EN/SET, V_FLEN= IN= 5V

-1

μA

V^T(FLINH)

R^IN(FLINH)

t_EN/SET(LO)

FLINH Input Threshold Voltage

FLINH Input Resistance to AGND

EN/SET Serial Interface Low Time

½ IN

200

kΩ

ꢀs

0.3

t_{EN/SET(HI-MIN)}Minimum EN/SET High Time

t_{EN/SET(HI-MAX)}Maximum EN/SET High Time

t_EN/SET(OFF)

t_ENSET(LAT)

t_FLEN(ON)

500

EN/SET Off timeout time

EN/SET Latch Timeout Time

FLEN On Delay Time

EN/SET = AGND

t_FLEN(OFF)

t^FLINH_ON

FLEN Off Delay Time

FLINH ON Delay Time

Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com

201981A

• Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • May 21, 2012

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