Datasheet > AAT2856INJ-EE-T1

AAT2856INJ-EE-T1

更新时间： 2024-02-09 01:32:03

品牌	Logo	应用领域
ANALOGICTECH		泵
页数	文件大小	规格书
22页	487K
描述
High Current Charge Pump with Dual LDO for BacklightApplications

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技术参数
数据手册

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AAT2856INJ-EE-T1 技术参数

生命周期：	Transferred	包装说明：	,
Reach Compliance Code：	unknown	风险等级：	5.68
Base Number Matches：	1

AAT2856INJ-EE-T1 数据手册

AAT2856

High Current Charge Pump with

Dual LDO for BacklightApplications

1, 2

Electrical Characteristics

V_IN= 3.6V; C_IN= 4.7µF; C_OUT= 2.2µF; C₁= C₂= 1µF; T_A= -40°C to +85°C, unless otherwise noted. Typical

values are T_A= 25°C.

Symbol Description

Conditions

Min Typ Max Units

V_IN

IN Operating Voltage Range

2.7

5.5

1X Mode, 3.0V ≤ V_IN≤ 5.5V, Active,

No Load; ENL = AGND, ENS = IN

1.5X Mode, 3.0V ≤ V_IN≤ 5.5V, Active,

No Load; ENL = AGND, ENS = IN

2X Mode, 3.0V ≤ V_IN≤ 5.5V, Active,

No Load; ENL = AGND, ENS = IN

ENA = ENB = ENS = AGND

I_IN(Q)

IN Operating Current

I_IN(SHDN)

T_SD

IN Shutdown Current

Over-Temperature Shutdown

Threshold

Over-Temperature Shutdown

Hysteresis

1.0

µA

°C

140

T_SD(HYS)

°C

Charge Pump Section

I_OUT

OUT Maximum Output Current

200

500

V_{IN(TH H)}

Charge Pump Mode Hysteresis

Charge Pump Oscillator

Frequency

Address 0, Data 1

T_A= 25°C

f_OSC

MHz

BL1-BL6 Backlight LED Outputs

Address 0, Data 1; V_IN- V_F= 1.5V

Address 12, Data 2; V_IN- V_F= 1.5V

Address 0, Data 1; V_IN- V_F= 1.5V

I_{BL_(MAX)}

BL1-BL6 Maximum Current

ΔI_{(BL )}

BL1-BL6 Current Matching

1.0

BL1-BL6 Charge Pump Mode

Transition Threshold

V_{BL_(TH)}

150

ENS Logic Control

V_ENS(L)

V_ENS(H)

I_ENS

t_ENS(LOW)

t_{ENS(HI_MIN)}

ENS Input Low Threshold

0.4

µA

µs

ENS Input High Threshold

ENS Input Leakage Current

ENS Serial Interface Low Time

ENS Serial Interface Minimum

1.4

-1.0

0.3

V_ENS= V_IN= 5V

V_IN≥ 3.3V

1.0

t_{ENS(HI MIN)}High Time

_{ENS(HI_MAX)}, ENS Serial Interface Maximum

V_IN≥ 3.3V

µs

t_{ENS(HI MAX)}High Time

t_ENS(OFF)

ENS Off Timeout

ENS Serial Interface Latch

Timeout

500

t_ENS(LAT)

1. The AAT2856 is guaranteed to meet performance specifications over the -40°C to +85°C operating temperature range and is assured

by design, characterization, and correlation with statistical process controls.

2. Current matching is defined as the deviation of any sink current from the average of all active channels.

2856.2007.06.1.0

1 2 3 456 7 8...22

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