DIODES INCORPORATED Issue Number │002
February 2015
New Product AnnouncementAH5772 & AH5773
U-DFN2020-6 Update
AH5772 and AH5773 - 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 motor coil, the both devices provides a rotor lock protection, over voltage protection and thermal shutdown. The open-drain Frequency Generator (FG) 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.
The Diodes Advantage
AH5772/3 provides a highly integrated high performance yet simple solutions for a wide range of cooling fans and motor drive applications.
High sensitivity Hall sensor with low temperature and voltage coefficients
- Highly stable solutions and 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 is capable of 1A peak currents
Speed control by DC voltage or PWM input signal
- Flexible speed control by an external PWM signal (AH5773) or by adjusting the supply voltage (AH5772 and AH5773)
Lock detect, shutdown and automatic restart with FG option
- Helps protects coil from over-heating or burning during rotor lock.
- AH5773 provides FG pin to monitor motor rotation and speed
Over Voltage Protection and Thermal shutdown
- Helps to protect coil and the device - Safe, reliable and robust operation
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 PCs cooling fans and blowers
Instrumentation and equipment power supply cooling fans
www.diodes.com
Issue Number │002
February 2015
New Product AnnouncementAH5772 & AH5773
U-DFN2020-6 Update
AH5772 and AH5773 - High Performance Single Phase BLDC All-In-One Fan and Motor Driver FamilyTypical Application Circuit
AH5772 AH5773
SYSTEM POWER
Optional
D1
Dz
VDD
C1
O1
AH5772
O2
Motor
Coil
SYSTEM POWER
Optional
D1
Dz
VDD FG C1
10kΩ
FG
GND
Vss
PWM signal for
speed control
PWM
Vss
AH5773 O1
O2
Motor
Coil
Electrical Characteristics
GND
Part | Operating Voltage | Supply Current (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 | ||||
Part | (V) | (mA) | (mA) | (mA) | (Gauss) | (Gauss) | Soft-Switch | Speed Control | Lock Detect, Shutdown and Auto-Restart | FG / RD | Standby | (oC) | Package | ||||
Part | (V) | (mA) | (mA) | (mA) | Min | Typ | Max | Min | Typ | Max | Soft-Switch | Speed Control | Lock Detect, Shutdown and Auto-Restart | FG / RD | Standby | (oC) | Package |
AH5772 | 2.4 to 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 |
Ordering Information
Device | Packaging (Note 1 and 2) | Reel size or 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 |
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) compliant. No purposely added lead. 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 document AP02001,
which can be found on our website at http://www.diodes.com/datasheets/ap02001.pdf
www.diodes.com
Issue Number │002
February 2015
New Product AnnouncementAH5772 & AH5773
U-DFN2020-6 Update
AH5772 and AH5773 - High Performance Single Phase BLDC All-In-One Fan and Motor Driver FamilyProduct Portfolio - Single phase (1, 2) BLDC All-In-One fans and motor drive ICs
Part | Operating Voltage | Supply Current (No Load) | Avg. Output Drive Current | Peak Motor Current | Grade | Max Operating Point Bop | Min Release Point Brp | Soft-Switch | Speed Control | Lock Detect, Shutdown and Auto-Restart | FG / RD | Standby | Temp Range | Package | ||||
Part | (V) | (mA) | (mA) | (mA) | Grade | (Gauss) | (Gauss) | Soft-Switch | Speed Control | Lock Detect, Shutdown and Auto-Restart | FG / RD | Standby | (oC) | Package | ||||
Part | (V) | (mA) | (mA) | (mA) | Grade | Min | Typ | Max | Min | Typ | Max | Soft-Switch | Speed Control | Lock Detect, Shutdown and Auto-Restart | FG / RD | Standby | (oC) | Package |
AH5794 | 1.8 to 6.0 | 2.2 | 350 500 | 1000 | -- | 10 | 25 | 50 | -50 | -25 | -10 | Yes | VDD | Yes | FG | -- | -40 to +105 | TSOT23-6 U-DFN2020-6 |
AH5795 | 1.8 to 6.0 | 2.2 | 350 500 | 1000 | -- | 10 | 25 | 50 | -50 | -25 | -10 | Yes | PWM, VDD | Yes | FG | Yes | -40 to +105 | TSOT23-6 U-DFN2020-6 |
AH5798 | 1.8 to 5.5 | 5 | 250 300 | 800 | -- | 10 | 25 | 50 | -50 | -25 | -10 | Yes | VDD | Yes | FG | -- | -40 to +105 | TSOT23-5 SOT89-5 |
AH5771 | 2.5 to 15 | 3.5 | 200 | 400 | -- | 10 | 30 | 50 | -50 | -30 | -10 | -- | VDD | Yes | -- | -- | -40 to +100 | SIP-4 |
AH9479 | 2.5 to 16 | 4.3 | 300 | 500 | -- | 0 | 20 | 50 | -50 | -20 | 0 | Yes | VDD | Yes | -- | -- | -40 to +85 | TO94 |
AH9480 | 2.5 to 16 | 4.3 | 300 | 500 | -- | 0 | 20 | 50 | -50 | -20 | 0 | Yes | VDD | Yes | FG | -- | -40 to +85 | MSOP8-EP |
AH9481 | 2.5 to 16 | 4.3 | 300 | 500 | -- | 0 | 20 | 50 | -50 | -20 | 0 | Yes | VDD | Yes | RD | -- | -40 to +85 | MSOP8-EP |
AH477A | 3.5 to18 | 13.5 | 250 | 600 | A B | 5 -- | -- -- | 70 100 | -70 -100 | -- -- | -5 -- | -- | VDD | Yes | -- | -- | -20 to +85 | TO94 |
AH5772 | 2.4 to 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 |
TS: Thermal Shutdown OCL: Over Current Limit OVP: Over Voltage
(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
To find out more information:
Motor Control Portfolio page:
Single Phase All-In-One Driver: http://www.diodes.com/products/catalog/browse.php?parent-id=220
AH5772 Datasheet: http://www.diodes.com/datasheets/AH5772.pdf
AH5773 Datasheet: http://www.diodes.com/datasheets/AH5773.pdf
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