Issue Number │002
December 2015
New Product
Announcement
AH5775
AH5775 - Single Phase Motor Driver with
Internal Hall Effect Latch Sensor
The AH5775 is a single-chip
solution for driving single-coil,
brushless, direct current
(BLDC) fans and motors with
300mA continuous and 800mA
peak motor current handling
capability.
The integrated full-bridge driver
output stage uses soft switching
to minimize audible switching
noise and electromagnetic
interference (EMI) providing a
low noise solution.
The Diodes Advantage
To help protect the motor coil,
AH5775 provides Rotor Lock
Protection which shuts down
the output drive if rotor lock is
detected. The device
automatically restarts when the
rotor lock is removed. In
overvoltage situations, the
device shuts down the output
drive and enters standby mode
to help prevent overvoltage
stress on the coil. Overtemperature shutdown provides
thermal protection for the
device.
AH5775 is available in TO94
package.
AH5775 provides a highly integrated, high performance yet simple solution
for a wide range of cooling fans and motor drive applications.
 Medium Sensitivity Hall Sensor with Low Temperature and Voltage
Coefficients for Switch Points
- Highly stable solutions
- Works with cheaper lower strength magnets
 Built-in Hall Sensor, Amplifier, Voltage Reference and H-Bridge
Switches
- Highly integrated solution significantly reduces external components,
PCB area and placement cost
- Low RDS(ON) H-Bridge switches capable of 800mA peak current
 Lock Rotor Shutdown and Automatic Restart
- Helps protects coil from overheating or burning during rotor lock.
 Overvoltage Protection and Thermal Shutdown
- Helps to protect both coil and device
- Safe, reliable and robust
 Operating Temperature Range -40oC to 105oC
Suitable for thermally-demanding enclosed cooling fan applications.
Applications



12V BLDC cooling fans, motors, extractors and pumps
Notebook and desktop PC cooling fans and blowers
Instrumentation and equipment power supply cooling fans
www.diodes.com
Issue Number │002
December 2015
New Product
Announcement
AH5775
Typical Application Circuit
Optional
SYSTEM
POWER
VDD
D1
C1
O1
Dz
Motor
Coil
AH5775
O2
GND
GND
Electrical Characteristics
Part
Supply Avg.
Peak
Operating Current Output
Motor
Drive
(No
Voltage
Current
Load) Current
(V)
AH5775 2.5 to 18
(mA)
(mA)
(mA)
3
300
800
Operating
Point Bop
Min
50
Release
Point Brp
(Gauss)
Typ
Max
70
Soft- Speed
Switch Control
(Gauss)
Min Typ Max
Lock Detect, Temp Range
Shutdown
and
Auto-Restart
Package
o
( C)
VDD
90 -90 -70 -50 Yes
Yes
-40 to
+105
Ordering Information
Device
Packaging
(Note 1 & 2)
Reel Size or
Bulk
Tape Width
Quantity
AH5775-P-B
TO94
Bulk
8”
1k
www.diodes.com
TO94
Issue Number │002
December 2015
New Product
Announcement
AH5775
2.2
350
500
1000
AH5795 1.8 to 6.0
2.2
350
500
FG
--
-40 to +105
Yes
Yes
Yes
Yes
--FG
RD
-----
-40 to +100
-40 to +85
-40 to +85
-40 to +85
Yes
--
--
-20 to +85
TO94
-90
-30 -10 -- VDD
-20 0 Yes VDD
-20 0 Yes VDD
-20 0 Yes VDD
-5
--- VDD
---70 -50 Yes VDD
Yes
--
--
-40 to +105
TO94
-35
-5
Yes VDD
Yes
--
--
-40 to +105
-5
PWM,
Yes
VDD
Yes
TO94
MSOP8-EP
U-DFN2020-6
25
50
-50
-25 -10 Yes VDD
1000
--
10
25
50
-50
-25 -10 Yes
800
--
10
25
50
-50
400
500
500
500
----A
B
--
10
0
0
0
5
-50
30
20
20
20
--70
50 -50
50 -50
50 -50
50 -50
70 -70
100 -100
AH5775 2.5 to 18
3
300
800
500
Yes
10
600
3
-25 -10 Yes VDD
U-DFN2020-6
TSOT23-5
SOT89-5
SIP-4
TO94
MSOP8-EP
MSOP8-EP
--
250
AH5773 2.4 to 18
FG Yes -40 to +105
Typ
13.5
450
Yes
Min
AH477A 3.5 to18
3
--
Max
3.5
4.3
4.3
4.3
AH5772 2.4 to 18
FG
Typ
2.5 to 15
2.5 to 16
2.5 to 16
2.5 to 16
AH5771
AH9479
AH9480
AH9481
5
Yes
Min
250
300
200
300
300
300
AH5798 1.8 to 5.5
Standby
AH5794 1.8 to 6.0
FG / RD
(mA)
1000
1000
TS: Thermal Shutdown
---
(Gauss)
5
5
20
20
(Gauss)
90
35
35
Temp
Range
Lock Detect,
Shutdown and
Auto-Restart
Peak Motor
Current
(mA)
Min Release
Point Brp
Speed Control
Avg. Output
Drive Current
(mA)
Max Operating
Point Bop
Soft-Switch
Supply
Current
(No Load)
(V)
Part
Single phase (1, 2) BLDC All-In-One fans and
motor drive ICs
Grade
Operating
Voltage
Product Portfolio –
-35
-20
-20
OCL: Overcurrent Limit
Max
PWM,
VDD
Package
o
( C)
-40 to +105
FG Yes -40 to +105
OVP: Overvoltage
(1) For two phase All-In-One BLDC fans and motor drivers please refer to the motor drive portfolio
http://www.diodes.com/products/catalog/browse.php?parent-id=225
(2) For single BLDC fans and motor drivers please refer to the motor drive portfolio
http://www.diodes.com/products/catalog/browse.php?parent-id=221
(3) For single or two phase BLDC fans and motor control pre-rivers please refer to the motor drive portfolio page on
http://www.diodes.com/products/catalog/browse.php?parent-id=222
(4) For three phase BLDC sensorless fans and motor drivers please refer to the motor drive portfolio page on
http://www.diodes.com/products/catalog/browse.php?parent-id=226
For more information:
Motor Control Portfolio Page:
http://www.diodes.com/catalog/BLDC_All-In-One_Motor_Drivers_151
Single Phase All-In-One Driver: http://www.diodes.com/products/catalog/browse.php?parent-id=220
AH5775 Datasheet:
http://www.diodes.com/_files/datasheets/AH5775.pdf
www.diodes.com
TSOT23-6
U-DFN2020-6
TSOT23-6