Datasheet > AAT2848IDG-T1

AAT2848IDG-T1

更新时间： 2024-01-04 22:06:28

品牌	Logo	应用领域
ANALOGICTECH		泵
页数	文件大小	规格书
19页	2625K
描述
High-Current Charge Pump For Backlight Display and Flash Applications

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技术参数
数据手册

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AAT2848IDG-T1 技术参数

是否Rohs认证：	符合	生命周期：	Obsolete
包装说明：	,	Reach Compliance Code：	unknown
ECCN代码：	EAR99	HTS代码：	8542.39.00.01
风险等级：	5.81	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

AAT2848IDG-T1 数据手册

PRODUCT DATASHEET

AAT2848

ChargePump

High-Current Charge Pump For Backlight Display and Flash Applications

Electrical Characteristics¹

V_IN= 3.6V; C_IN= 4.7μF; C_OUT= 2.2μF; C1 = C2 = 1μF; R_BSET= 15kΩ; R_FSET= 14.3kΩ; C_FLTMR= 0.33μF; C_FADE= 47nF;

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

BENS = IN, FENS = AGND, BL1 = BL2 = BL3 = BL4 = OUT

(Excluding LED Current)

600

μA

BENS = IN, FENS = AGND, BL1 = BL2 = BL3 = BL4 = OPEN

(1.5x CP, no load)

BENS = AGND, FENS = IN, FL1 = FL2 = OUT

(Excluding LED Current)

5.5

μA

I_IN(Q)

IN Operating Current

600

BENS = AGND, FENS = IN, FL1 = FL2 = OPEN

(2x CP, no load)

BENS = FENS = AGND

5.5

1.0

I_IN(SHDN)

T_SD

IN Shutdown Current

Thermal Shutdown

μA

°C

140

T_SD(HYS)

Thermal Shutdown Hysteresis

Charge Pump Section

I_OUT(MAX)

CP Maximum Output Current IN = 3V

720

Charge Pump Mode Transition

V_{IN(TH_H)}

BENS = DATA1

100

Hysteresis

Charge Pump Oscillator

Frequency (1.5X mode)

Charge Pump Soft Start Time

f_OSC

t_SS

T_A= 25°C

1.0

MHz

100

μs

BL1-BL4 Backlight LED Outputs

BENS = DATA1; V_IN– V_F= 1.5V

BENS = DATA32; V_IN– V_F= 1.5V

BENS = DATA1; V_IN– V_F= 1.5V

I_{BL_(MAX)}

ΔI_{(BL_)}

BL1-BL4 Current Accuracy

BL1-BL4 Current Matching

0.26 0.32 0.39

±3

BL1-BL4 Charge Pump Mode

Transition Threshold

V_{BL_(TH)}

Any backlight current sink/channel BL1, BL2, BL3, BL4

120

FL1-FL2 Flash LED Outputs

I_{FL_(MAX)}FL1-FL2 Current Accuracy

ΔI_{(FL_)}

FENS = DATA1; V_IN– V_F= 1.5V

FENS = DATA16; V_IN– V_F= 1.5V

FENS = DATA1; V_IN– V_F= 1.5V

180

200

220

5.66 6.66 7.66

±3

FL1-FL2 Current Matching

FL1-FL2 Charge Pump Mode

Transition Threshold

V_{FL_(TH)}

Any ﬂash current sink/channel FL1, FL2

300

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