BD6641KUT_11 Datasheet, PDF (1/5 Pages) Rohm – Silicon Monolithic Integrated Circuit

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Structure
Silicon Monolithic Integrated Circuit
Products Series
Type
4ch PWM Sensorless System Motor Driver for MD
BD6641KUT
Features
・Operates at low power supply voltage (2.1V min.)
・Power DMOS output with low ON resistance (0.8Ω typ.)
・Incorporates a charge pump circuit for VG boost
・3-phase full-wave PWM soft switching sensorless driver for spindle
・3-value control 3-phase driver for sled (Built-in comparator for BEMF voltage detection)
・2ch, 3-value control H-bridges for focus/tracking
○Absolute maximum ratings (Ta=25°C)
Parameter
Symbol
Limit
Unit
Power supply voltage for control circuit
VCC
7
V
Power supply voltage for driver block
VM
7
V
Power supply voltage for pre-driver block
VG
14
V
Input voltage
VIN
0～VCC
V
Output current
Iomax
*500
mA
Power dissipation
Pd
**1375
mW
Operating temperature range
Topr
-25～+75
℃
Storage temperature range
Tstg
-55～+150
℃
Junction temperature
Tjmax
+150
℃
＊Must not exceed Pd or ASO, Tjmax=150℃.
＊＊Reduced by 11mW/°C over Ta=25°C, when mounted on a glass epoxy board (70mm70 mm1.6mm).
○Operating conditions (Ta=-25～+75℃)
Parameter
Symbol
Min.
Typ.
Max.
Unit
VCC
2.1
2.2
6.5
V
Power supply voltage
VM
－
－
3.0
V
VG
3
6.5
13
V
This product described in this specification is not judged whether it applies to COCOM regulations.
Please confirm in case of export.
This product is not designed for protection against radioactive rays.
REV. B