Datasheet > AAT1272IWO-T1

AAT1272IWO-T1

更新时间： 2024-01-15 17:31:39

品牌	Logo	应用领域
ANALOGICTECH		/
页数	文件大小	规格书
20页	2644K
描述
Switching Regulator/Controller,

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技术参数
数据手册

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AAT1272IWO-T1 技术参数

是否Rohs认证：	符合	生命周期：	Obsolete
Reach Compliance Code：	compliant	ECCN代码：	EAR99
HTS代码：	8542.39.00.01	风险等级：	5.83
接口集成电路类型：	LED DISPLAY DRIVER	峰值回流温度（摄氏度）：	NOT SPECIFIED
处于峰值回流温度下的最长时间：	NOT SPECIFIED	Base Number Matches：	1

AAT1272IWO-T1 数据手册

PRODUCT DATASHEET

AAT1272

SwitchReg

1.5A Step-Up Current Regulator for Flash LEDs

Electrical Characteristics¹

V_IN= 3.6V; C_IN= 2.2μF; C_OUT= 2.2μF; L = 1μH; R_SET= 107kΩ; T_A= -40°C to 85°C, unless otherwise noted. Typical

values are T_A= 25°C.

Symbol

Description

Conditions

Min

Typ Max Units

Power Supply

V_IN

Input Voltage Range

Maximum Output Voltage

2.7

5.5

V_OUT(MAX)

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

EN = IN, FLEN = AGND

0.67

0.23

I_IN(Q)

Supply Current

I_SHDN(MAX)

I_FL(TOTAL)

I_FL(MATCH)

V_INShutdown Current

Total Output Current, Flash Mode

FLOUTA and FLOUTB Current Matching

EN = FLEN = GND

R_SET= 107kΩ; FLOUTA + FLOUTB

μA

1.2

1.5

R_SET= 107kΩ , Movie Mode Current Set =

100%; FLOUTA + FLOUTB

T_A= 25˚C

C_T= 74nF

I_MM(LOAD)

Total Output Current, Movie Mode

206

f_OSC

t_DEFAULT

T_SD

Switching Frequency

Default ON Time

Thermal Shutdown Threshold

Thermal Shutdown Hysteresis

2.0

600

140

2.5

MHz

°C

T_SD(HYS)

°C

I²C Control – SDA, SCL

V_IL

V_IH

Input Threshold Low

0.4

Input Threshold High

1.4

I_I

V_OL

f_SCL

t_LOW

Input Current

Output Logic Low (SDA)

SCL Clock Frequency

SCL Clock Low Period

SCL Clock High Period

Hold Time START Condition

Setup Time for Repeat START

SDA Data Setup Time

SDA Data Hold Time

-1.0

1.0

0.4

400

μA

I_PULLUP= 3mA

kHz

μs

1.3

0.6

100

t_HIGH

t_{HD_STA}

t_{SU_STA}

t_{SU_DAT}

t_{HD_DAT}

t_{SU_STO}

0.9

0.4

Setup time for STOP Condition

Bus Free Time between STOP and

START Condition

0.6

1.3

t_BUF

μs

EN, FLEN Logic Control

V_EN(L)

V_FLEN(L)

V_EN(H)

V_FLEN(H)

t_{FLEN_OND}

t_{FLEN_OFFD}

EN, FLEN Input Low Threshold

EN, FLEN Input High Threshold

1.4

FLEN ON Delay Time

FLEN OFF Delay Time

EN = AGND

μs

1. The AAT1272 is guaranteed to meet performance specifications over the -40°C to +85°C operating temperature range and is assured by design, characterization, and correla-

tion with statistical process controls.

w w w . a n a l o g i c t e c h . c o m

1272.2009.04.1.2

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