www.diodes.com
Issue Number │002
February 2015
Announcement
New Product
A H5772 & A H5773
U-DFN2020-6 Update
The Diodes Adv antage
AH5772/3 provi des a highly i ntegrated hi gh perf ormance yet simple s olutions for
a wide range of cooli ng f ans and m otor dr ive appl ic at ions .
High sensi ti vi ty Hal l sensor w it h low t emper at ure and vol t age coef f ici ent s
- Highly stable sol utions and works with cheaper l ow er st rength m agnets
Built-in Hall senso r, amplifi er, voltage r eference and H -Bridge sw it ches
- Highly i ntegr at ed s ol uti on s igni fi c antl y reduces external c omponent s , PCB area
and plac ement c ost
- Low R
DS(ON)
H-Bridge switches is capable of 1A peak c urrent s
Speed control by DC voltage or PWM input signal
- Flexible s peed c ont rol by an external PWM signal (AH 5773) or by adjusti ng t he
supply vol tage ( AH5772 and AH5773)
Lock detect, shutdown and automat ic rest art with FG option
- Helps protec ts c oil from over-heati ng or burning dur ing r ot or l oc k.
- AH5773 pr ovides FG pin to monit or mot or r ot ati on and speed
Over Voltage Protecti on and Thermal shutdown
- Helps to prot ect c oil and the device - Safe, reliable and robust operation
Operat ing t emper at ure r ange -40
o
C to 105
o
C
Suitabl e f or ther mal ly demandi ng enc l os ed cool ing f an appl ic at ions .
A H5772 and A H5773 - High Performance Single Phase BLDC
All-In-One Fan and Motor Driver Family
The simple AH5772 and fully
featured AH5773, are highly
integrated high performance
single chip fan driver solutions with
an average continuous current
capability of up to 500mA.
Designed for driving single-coil
brushless direct current (BLDC)
fans and motors, the integrated
full-bridge driver output stage uses
soft switching to minimize audible
switching noise and
electromagnetic interference (EMI)
providing a low noise solution.
For system flexibility, the AH5773
provides a PWM pin for external
PWM signal speed control and
standby mode in addition to
speed control by adjusting the
supply voltage.
In the motor industry, protection is
critical. To help protect the mot or
coil, the both devices provides a
rotor lock protection, ov er voltage
protection and therm al shutdown.
The open-drain Frequency
Generator (F G) pin in AH5773
allows an external interface to
monitor motor rotation or speed.
The AH5772 is available in TO94
while AH5773 is available in
thermally capable U-DFN2020-6
and MSOP8-EP packages.
Applications
12V BLDC cooling fans, motor s, extractors and pumps
Notebook and desktop PCs cooli ng fans and blowers
Instrum entation and equipment power supply cooling f ans
www.diodes.com
Issue Number │002
February 2015
Announcement
New Product
A H5772 & A H5773
U-DFN2020-6 Update
Typical Application Circuit
A H5772 and A H5773 - High Performance Single Phase BLDC
All-In-One Fan and M otor Dr iver Famil y
Electrical Characteristics
V
DD
O1
O2
Vss
AH5772
SYSTEM
POWER
Dz
C1
D1
Optional
Motor
Coil
GND
V
DD
FG
O1
O
2
FG
Vss
10
kΩ
AH57
73
PWM
SYSTEM
POWER
PWM signal for
speed control
Dz
C1
D1
Optional
Motor
Coil
GND
AH5772 AH5773
Ordering Information
Notes: 1. AH5772 and AH5773 are in “Green” and with Lead Free Finish/ RoHS Compliant packages.
EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) com pl i ant. No purposely added l ead. Halogen and Antimony free.
Please visit our website at http://www.diodes.com/products/lead_free.html
2. Pad layout as shown on Diodes Inc. suggested pad layout doc um ent AP02001,
which can be found on our website at http://www.diodes.com/datasheets/ap02001.pdf
Device
Packaging
(Note 1 and 2)
Reel size o r Bulk Tape width Quantity
AH5772-P-B TO94 Bulk 1K
AH5773-MP-13 MSOP8-EP 13” 8mm 2.5K
AH5773-FDC-7 U-DFN2020-6 7” 8mm 3k
Part
Operating
Voltage
Supply
Curr ent
(No Load)
Avg. Output
Drive
Current
Peak Motor
Current
Operating
Point Bop
Release
Point Brp
Soft-Switch
Speed Control
Lock Detect,
Shutdown and
Auto-Restart
FG / RD
Standby
Temp Range
Package
(V) (mA)
(mA) (mA)
(Gauss) (Gauss)
(
o
C)
Min Typ Max Min Typ Max
AH5772
2.4 t o 18 3 450 1000 5 20 35 -35 -20 -5 Yes
VDD
Yes -- -- -40 to +105 TO94
AH5773
2.4 to 18 3 500 1000 5 20 35 -35 -20 -5 Yes
PWM,
VDD
Yes FG Yes -40 to +105
MSOP8-EP
U-DFN2020-6