UPD16856 NEC, UPD16856 Datasheet - Page 9

• Manufacturer Part Number: UPD16856
• Description: MONOLITHIC CD-ROM 3-PHASE SPINDLE MOTOR DRIVER
• Manufacturer: NEC

(4) Standby Mode
The setting of the standby mode allows the power supply in the device to be turned off forcibly.
The status of outputs from pins in standby is high impedance (H-bridge all OFF). In addition it is possible to
reduce the circuit current since the internal oscillation block stops.
When the stop operation is executed by the standby pin during normal operation, the motor is stopped by inertia
force.
When the normal status is reset, it takes several tens of s to be activated.
STB Pin
H
L
Normal operation mode
Standby mode
Data Sheet S13447EJ1V0DS00
Operation Mode
PD16856
9