Datasheet > AAT1239ITP-1-T1

AAT1239ITP-1-T1

更新时间： 2024-01-28 09:18:38

品牌	Logo	应用领域
ANALOGICTECH		转换器
页数	文件大小	规格书
21页	904K
描述
40V Step-Up Converter for 4 to 10 White LEDs

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技术参数
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AAT1239ITP-1-T1 技术参数

生命周期：	Transferred	包装说明：	,
Reach Compliance Code：	unknown	风险等级：	5.82

AAT1239ITP-1-T1 数据手册

PRODUCT DATASHEET

AAT1239-1

SwitchReg^TM

40V Step-Up Converter for 4 to 10 White LEDs

Electrical Characteristics¹

T_A= -40°C to +85°C unless otherwise noted. Typical values are at 25°C, V_IN= 3.6V.

Symbol

Description

Conditions

Min

Typ

Max Units

Power Supply

PV_IN, V_IN

V_OUT(MAX)

I_Q

Input Voltage Range

Maximum Output Voltage

Operating Current

2.7

5.5

μA

SEL = GND, FB = 0.1V

EN/SET = GND

I_SHDN

Shutdown Current

1.0

Maximum Continuous Output

Current²

ΔV_LINEREG(FB)/ΔV_INLine Regulation

I_OUT

2.7V < V_IN< 5.5V, V_OUT= 40V

V_IN= 2.7V to 5.5V, V_FB= 0.6V

0.7

R_{DS(ON) L}

Low Side Switch On Resistance

135

mΩ

Input Disconnect Switch

On Resistance

R_{DS(ON) IN}

180

400

mΩ

μs

From Enable to Output Regulation;

V_FB= 300mV

T_SS

Soft-Start Time

Over-Voltage Protection Threshold V_OUTRising

1.1

1.4

1.2

100

2.5

140

1.3

°C

V_OVP

Over-Voltage Hysteresis

V_OUTFalling

I_LIMIT

T_SD

T_HYS

N-Channel Current Limit

T_JThermal Shutdown Threshold

T_JThermal Shutdown Hysteresis

SEL, EN/SET

V_SEL(L)

SEL Threshold Low

SEL Threshold High

Enable Threshold Low

Enable Threshold High

EN/SET Low Time

0.4

V_SEL(H)

V_EN/SET(L)

V_EN/SET(H)

T_{EN/SET (LO)}

T_EN/SET(HI)

T_OFF

1.4

0.3

V_EN/SET< 0.6V

500

μs

μA

EN/SET High Time

V_EN/SET> 1.4V

EN/SET Off Timeout

EN/SET Latch Timeout

EN/SET Input Leakage

V_EN/SET< 0.6V

V_EN/SET> 1.4V

V_EN/SET= 5V V_IN= 5V

T_LAT

I_EN/SET

-1

AAT1239-1

V_IN= 2.7V to 5.5V, SEL = GND,

EN/SET = DATA16

V_IN= 2.7V to 5.5V, SEL = HIGH,

EN/SET = HIGH

0.085

0.54

0.1

0.6

1.115

0.66

V_FB

FB Pin Regulation

1. Specification over the -40°C to +85°C operating temperature range is assured by design, characterization, and correlation with statistical process controls.

2. Maximum continuous output current increases with reduced output voltage, but may vary depending on operating efficiency and thermal limitations.

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

1239-1.2007.10.1.0

1 2 345 6 7...21

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