|
|
Numéro de référence | RT8725 | ||
Description | Single-Phase BLDC Fan Driver IC | ||
Fabricant | Richtek | ||
Logo | |||
1 Page
®
RT8725
Single-Phase BLDC Fan Driver IC
General Description
The RT8725 is a single-phase driver IC for fan motors.
Rotation speed is controlled by PWM input signal. The
RT8725 provides several protection features including
standby mode, thermal shutdown, lock protection, over-
current protection and under-voltage protection. The Built-
in smart force start-up function overcomes and avoids
wrong status when electrical noise occurs during start-
up. In the standby and thermal shutdown mode, the supply
current is less than 100μA. The rotation frequency is
generated by FG output.
Ordering Information
RT8725
Package Type
QU : UDFN-8L 2x3 (U-Type)
Note :
Lead Plating System
G : Green (Halogen Free and Pb Free)
Richtek products are :
` RoHS compliant and compatible with the current require-
ments of IPC/JEDEC J-STD-020.
` Suitable for use in SnPb or Pb-free soldering processes.
Features
z Low Supply Current
z Smart Force Start-up Function
z PWM Supply Voltage Control Fan Speed
z Built-in Motor Lock Protection and Automatic
Restart
z Built-in Thermal Shutdown
z Built-in Over-Current Protection
z Built-in Frequency Generator with FG Output Signal
z RoHS Compliant and Halogen Free
Applications
z Single Phase Fan Motor for Notebook or PC
Pin Configurations
(TOP VIEW)
OUT2
VCC
H+
H-
1
2
3
4
8 GND
7 OUT1
6 PWM
9 5 FG
UDFN-8L 2x3
Marking Information
0A : Product Code
0AW
W : Date Code
Simplified Application Circuit
Optional
Supply D1
Voltage
D2
Hall
RT8725
VCC OUT2
C1
H+
H- OUT1
FG
Single-Phase
Brushless M
DC Motor
RFG
Pull-High Voltage
PWM Control Signal
PWM
GND
Copyright ©2013 Richtek Technology Corporation. All rights reserved.
DS8725-02 October 2013
is a registered trademark of Richtek Technology Corporation.
www.richtek.com
1
|
|||
Pages | Pages 10 | ||
Télécharger | [ RT8725 ] |
No | Description détaillée | Fabricant |
RT8720A | Single-Phase Full-Wave Fan Motor Driver | Richtek |
RT8720B | Single-Phase Full-Wave Fan Motor Driver | Richtek |
RT8723 | Single-Phase Full-Wave Fan Motor Driver | Richtek |
RT8725 | Single-Phase BLDC Fan Driver IC | Richtek |
US18650VTC5A | Lithium-Ion Battery | Sony |
TSPC106 | PCI Bus Bridge Memory Controller | ATMEL |
TP9380 | NPN SILICON RF POWER TRANSISTOR | Advanced Semiconductor |
www.DataSheetWiki.com | 2020 | Contactez-nous | Recherche |