Datasheet > AAT2807AIXN-4.5-T1

AAT2807AIXN-4.5-T1

更新时间： 2024-01-04 03:09:21

品牌	Logo	应用领域
思佳讯 - SKYWORKS		/
页数	文件大小	规格书
12页	291K
描述
Analog Circuit,

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AAT2807AIXN-4.5-T1 技术参数

是否Rohs认证：	符合	生命周期：	Transferred
包装说明：	,	Reach Compliance Code：	unknown
风险等级：	5.57	湿度敏感等级：	1
Base Number Matches：	1

AAT2807AIXN-4.5-T1 数据手册

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AAT2807A

Dual High Efficiency Charge Pump

for White LED and Flash Applications

Electrical Characteristics¹

V_IN= 3.5V; C_IN= C_OUT= C₁= C₂= C₃= 1.0µF; T_A= -40°C to 85°C, unless otherwise noted.

Typical values are at T_A= 25°C.

Symbol Description

Input Power Supply

Conditions

Min Typ Max Units

V_IN

Operation Range

2.7

5.5

1X Mode, 3.0 ≤ V_IN≤ 5.5, Active, No Load

Current; EN_FLSH = GND, EN/SET = V_IN

1.5X Mode, 3.0 ≤ V_IN≤ 5.5, Active, No Load

Current; EN_FLSH = GND, EN/SET = V_IN

2X Mode, 3.0 ≤ V_IN≤ 5.5, Active, No Load

Current; EN_FLSH = GND, EN/SET = V_IN

3.0 ≤ V_IN≤ 5.5, No Load Current;

EN_FLSH = V_IN, EN/SET= GND

0.3

1.0

2.0

3.0

4.5

I_CC

Operating Current

I_SHDN

I_DX

Shutdown Current

EN_FLSH = EN/SET=0

1.0

µA

2, 4

Input Current Accuracy

I_SET= 20mA; T_A= 25°C

-12

I_(D-Match)

Current Matching Between Any

Two Current Sink Inputs

VD1:D3 = 3.6, V_IN= 3.5V

0.5

2,5

R_SINK

Sink Switch Impedance (each)

Flash Charge Pump Output

Voltage

Ω

V_{OUT_FL}

3.0V < V_IN< 5V, I_OUT= 100mA;

EN_FLSH = V_IN

4.3 4.5

4.8

Continuous Maximum Output

Current Flash Charge Pump

EN_FLSH = V_IN

150

I_{DX_FLSH}

Pulsed Maximum Output Current T_PULSE= 250ms; V_IN= 3.6V;

300

Flash Charge Pump

EN_FLSH = V_IN

η_CP

Charge Pump Section Efficiency V_IN= 3.5V, I_OUT(TOTAL)= 120mA,

Measured from IN to CP

T_SS

Soft-Start Time

100

1.0

µs

MHz

F_CLK

Clock Frequency

V_EN(L)

V_EN(H)

Enable Threshold Low

0.4

Enable Threshold High

1.4

0.3

T_{EN/SET LO}EN/SET Low Time

V_EN/SET< 0.6V

V_EN/SET> 1.4V

µs

T_{EN/SET HI}Minimum EN/SET High Time

T_OFF

T_LAT

I_I

EN/SET Off Timeout

EN/SET Latch Timeout

Enable and EN/SET Input

Leakage

V_EN/SET< 0.6V

500

1.0

µs

µA

V_EN/SET> 1.4V

V_EN/SET= V_{EN_FLSH}= V_IN

-1.0

Notes:

1. The AAT2807A 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. Specification applies only to the tri-mode charge pump.

3. Specification applies only to the charge pump doubler.

4. Determined by the sum of all active channels.

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

2807A.2004.12.1.0

1 2 345 6 7...12

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