Datasheet > AAT2848

AAT2848

更新时间： 2022-04-23 23:00:11

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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AAT2848 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

BENS and FENS Logic Control

V_BENS(L)

V_FENS(L)

V_BENS(H)

V_FENS(H)

BENS, FENS Input Low Threshold Voltage

BENS, FENS Input High Threshold Voltage

0.4

1.4

-1

μA

_BENS, I_FENSBENS, FENS Input Leakage Current

V_BENS= V_FENS= V_IN= 5V

BENS Transition High-to-Low or Low-to-

High; DATA1

t_FADE

Automatic Fade-In/Out Timer

Automatic Flash Disable Time

BENS, FENS Low Time

2.7

1.3

t_FLASH

t_BENS(LOW)

t_FENS(LOW)

FENS Transition Low-to-High

0.3

μs

t_{BENS(HI_MIN)}

Minimum BENS, FENS High Time

Maximum BENS, FENS High Time

BENS, FENS Off Timeout

μs

t_{FENS(HI_MIN)}

t_{BENS(HI_MAX)}

t_{FENS(HI_MAX)}

t_BENS(OFF)

t_FENS(OFF)

t_BENS(LAT)

t_FENS(LAT)

500

BENS, FENS Latch Timeout

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

2848.2008.05.1.0

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