AAT2842IBJ-EE-T1 参数 Datasheet PDF下载

High-Current Charge Pump with S

2

Cwire™

Control and Dual LDO for Backlight and Flash

Electrical Characteristics

1

V

IN

= 3.6V; C

IN

= 4.7µF; C

OUT

= 2.2µF; C

1

= C

2

= 1.0µF; T

A

= -40°C to +85°C, unless otherwise noted. Typical

values are at T

A

= 25°C.

Symbol

Enable/Set

V

BENS(L)

,

V

FENS(L)

V

BENS(H)

,

V

FENS(H)

T

BENS(L)

,

T

FENS(L)

T

BENS(H-MIN)

,

T

FENS(H-MIN)

T

BENS(H-MAX)

,

T

FENS(H-MAX)

T

BENS(OFF)

,

T

FENS(OFF)

T

BENS(LAT)

,

T

FENS(LAT)

I

BENS

, I

FENS

AAT2842

Description

BENS, FENS Low Threshold

BENS, FENS High Threshold

BENS, FENS Low Time

BENS, FENS Minimum

High Time

BENS, FENS Maximum

High Time

BENS, FENS Off Timeout

BENS, FENS Latch Timeout

Conditions

Min

Typ

Max

0.4

Units

V

V

1.4

0.3

50

75

500

500

V

BENS

or V

FENS

= V

IN

= 5V

I

OUT

= 1mA to 200mA

ENL = IN, BENS = FENS = AGND

-1

1.17

200

I

OUT

= 150mA

150

300

0.4

1.4

REF = Open

15

20

I

OUT

=10mA, C

REF

= 10nF, 1kHz

50

1.2

85

1

1.23

150

75

µs

ns

µs

µs

µs

µA

V

µA

mA

mV

V

V

µs

Ω

dB

BENS, FENS Input Leakage

Current

Linear Regulators

V

FBA

, V

FBB

FB Voltage Tolerance

I

IN

IN Operating Current

I

OUTA(MAX)

,

OUTA, OUTB Maximum Load

I

OUTB(MAX)

Current

V

OUTA(DO)

,

OUTA, OUTB Dropout Voltage

V

OUTB(DO)

ENL Enable Low Voltage

V

ENL(L)

Threshold

ENL Enable High Voltage

V

ENL(H)

Threshold

t

ENL(DLY)

ENL Enable Delay

R

OUTA(DCHG)

, OUTA, OUTB Auto-Discharge

R

OUTA(DCHG)

Resistance

PSRR

A

,

OUTA, OUTB Power Supply

Rejection Ratio

PSRR

B

1. The AAT2842 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.

6

2842.2006.10.1.0