FAN8841MPX datasheet(6/16 Pages) ONSEMI

tên linh kiện	FAN8841MPX

Giải thích chi tiết về linh kiện	Dual Half-Bridge Piezoelectric Driver with Step-up DC-DC Converter

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FAN8841

• Rev. 1.0

5

Electrical Characteristics

VDD=3.0 V, VDRV=60 V, and TA= -40°C to +125°C. Typical values TA=25°C, unless otherwise specified.

Symbol

Parameter

Conditions

Min.

Typ.

Max.

Unit

Power Supply Section

IQ,DD

Quiescent Current for VDD

(5)

VEN=VCOMP=VDD,

VFB=1.0 V, VIN1=VIN2=0 V

800

1200

µA

I Q,DRV

Quiescent Current for VDRV

400

800

µA

ISD,DD

Shutdown Current for VDD

VEN=0 V,

VDD= VDRV =3 V

1

µA

ISD,DRV

Shutdown Current for VDRV

8

15

µA

VDDSTART

Start Threshold Voltage

2.6

2.7

2.8

V

VDDUVHYS

VDD UVLO Hysteresis Voltage

0.10

0.2

V

Error Amplifier Section

VFB

Feedback Reference Voltage

TA=25°C

0.99

1.00

1.01

V

IFB

FB pin Bias Current

VFB=0 V ~ 2 V

1

µA

V

FB1

Feedback Voltage Line Regulation

(6)

2.7 V < VDD < 5 V,

0.5

1.5

%/V

Gm

Transconductance

TA=25°C

800

µmho

Zero Current Detect Section

VZCD

Input Voltage Threshold

(7)

1.65

1.83

2.00

V

VCLAMPH

Input High Clamp Voltage

IDET=2.3 mA

3.0

3.5

4.0

V

VCLAMPL

Input Low Clamp Voltage

IDET= -2.3 mA

-0.30

0.12

0.50

V

IZCD,SR

Source Current Capability

-2.3

mA

IZCD,SK

Sink Current Capability

2.3

mA

tZCD,D

Delay From ZCD to Output Turn-On

(7)

50

200

ns

Maximum On-Time Section

tON,MAX

Maximum On-Time

15

25

35

µs

Soft-Start Timer Section

tSS

Internal Soft-Start

16

28

40

ms

Restart / Maximum Switching Frequency Limit Section

tRST

Restart Timer

15

25

35

µs

fMAX

Maximum Switching Frequency

(7)

900

1000

KHz

Notes:

5.

This is only the VDD current consumption with no switching condition. It does not include gate-drive current.

6.

The line regulation is calculated based on

OUT

IN

OUT

V

1





.

7.

This parameter, although guaranteed by design, is not tested in production.

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