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Ah5794, Single phase hall effect latch fan motor driver, New prod uc t – Diodes AH5794 User Manual

Page 4: Absolute maximum ratings, Recommended operating conditions, Electrical characteristics

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AH5794

SINGLE PHASE HALL EFFECT LATCH FAN MOTOR DRIVER

AH5794

Document number: DS35809 Rev. 1 - 2

4 of 13

www.diodes.com

March 2012

© Diodes Incorporated

NEW PROD

UC

T

Absolute Maximum Ratings

(T

A

= 25

°C, unless otherwise noted, Note 3)


Symbol

Characteristics

Values

Unit

V

DD

Supply Voltage

7 V

I

O(PEAK)

Maximum Output Current (Peak)

1000

mA

P

D

Power Dissipation

TSOT26 650

mW

U-DFN2020C-6

750 (Note 4)

T

ST

Storage Temperature Range

-65 ~ +150

o

C

ESD HBM

Human Body Model ESD Protection

4

kV

Notes:

3. Stresses greater than the 'Absolute Maximum Ratings' specified above, may cause permanent damage to the device. These are stress ratings only;

functional operation of the device at these or any other conditions exceeding those indicated in this specification is not implied. Device reliability

may be affected by exposure to absolute maximum rating conditions for extended periods of time

4. U-DFN2020C-6 exposed pad soldered to minimum recommended landing pads (see Package Outline Dimension section) on a two-layer 2oz.

copper FR4 PCB (1.6mm thickness) with no thermal vias in exposed PADs or any copper flood connecting to the landing pattern of the

exposed pad.

Recommended Operating Conditions

(T

A

= 25

°C)


Symbol

Parameter

Conditions

Min

Max

Unit

V

DD

Supply Voltage at V

DD

pin

DC supply speed control mode

1.8

6.0

V

T

A

Operating Ambient Temperature Range

Operating

-40

+105

o

C


Electrical Characteristics

(T

A

= 25

°C, V

DD

= 5V)


Symbol

Characteristics

Conditions

Min

Typ.

Max

Unit

I

DD

Supply Current

No Load

- 2.2 -

mA

V

OH

Output Voltage High

I

OUT

= 300mA

4.70 4.88 -

V

I

OUT

= 500mA

4.5 4.8 - V

V

OL

Output Voltage Low

I

OUT

= 300mA

- 0.12

0.3 V

I

OUT

= 500mA

- 0.2

0.5

V

V

OH

+V

OL

Output voltage of N- and PMOS
combined

I

OUT

= 300mA

0.3

0.5

V

I

OUT

= 500mA

0.5 V

T

SW

Output Switching Slope Duration

17

Ω load on O1/O2

-

200

-

μs

I

LEAK

FG Output Leakage Current

-

-

5

μA

V

FGOL

FG Output Voltage Low

I

FG

= 5mA

- -

0.4

V

T

ON

On Time

350

500

650

ms

R

DR

Duty Ratio

T

OFF

/ T

ON

- 10 -

T

J

_

SDN_TH

IC junction temperature thermal
shutdown threshold

175

o

C

T

J

_

SDN_HYST

IC junction temperature thermal
shutdown hysteresis

25

o

C