TA8470AFG
TA8470AFG is 3 PHASE FULL WAVE BRUSHLESS DC MOTOR DRIVER IC manufactured by Toshiba.
- Part of the TA8470AF comparator family.
- Part of the TA8470AF comparator family.
FEATURES z Operating Voltage Range : VCC = 7~17 V z Output Current : IO (MAX.) = 1.2 A z Three Phase Bi-direction, current control mode z Low Noise (Quasi Sinusoidal Drive) z Built-in FG Amplifier z Low Output Impedance with B Class Push-Pull Driver, Capable of Short Brakes (Dumping Brakes) z Position Detecting Circuit (Hall Input) with High Sensitivity : VH = 50 m Vp- p z Enclosed in Space-saving Power Flat Package z Built-in Thermal Shutdown Circuit Weight : 0.79 g (Typ.)
TA8470AFG: The TA8470AFG is a Pb-free product. The following conditions apply to solderability:
- Solderability 1. Use of Sn-37Pb solder bath
- solder bath temperature = 230°C
- dipping time = 5 seconds
- number of times = once
- use of R-type flux 2. Use of Sn-3.0Ag-0.5Cu solder bath
- solder bath temperature = 245°C
- dipping time = 5 seconds
- the number of times = once
- use of R-type flux
2006-3-2
TA8470AF/AFG
BLOCK DIAGRAM
..
FUNCTION (VIN- = 5 V)
MODE FRS VIN La = Ha
- Hb CW L
+ VIN > 2.3 V
OUTPUT
Lb = Hb
- Hc Lc = Hc
- Ha La =
- (Ha
- Hb)
+ VIN > 2.3 V
Lb =
- (Hb
- Hc) Lc =
- (Hc
- Ha)
Standby Brake
M ―
―
+ VIN < 2.3 V
Mid-point potentia Mid-point potentia
(Note)...