Diodes ZXBM1016 - Manual (Page 4)

ZXBM1016
Issue 1 - February 2007 4 www.zetex.com
© Zetex Semiconductors plc 2007
Block diagram
Pin assignments
Speed &
Lock
Detect
Hall
FG
CLCK
CPWM
SPD
H+
H-
Hall
Amp
PWM
Osc
Locked
Rotor
Detect
Phase
Drive &
Control
Gnd
Vcc
Set Min
Speed
Vref
SMIN
ThRef
Ph2 Lo
Ph1 Lo
Ph2 Hi
Ph1 Hi
Vcc
Vcc
Phase
Drive
Current
Monitor
SetTh
Sense
Control
Voltage
V
SPD
Vcc
Vcc
Hall
Bias
H-Bias
Speed
Detect
CINT
Start-up
Tail-end
Control
SetThRef
Range
H+
SetThRef
SPD
H-
Gnd
Ph1Lo
Ph2Lo
C PWM
C LCK
FG
ZXBM1016
TSSOP20
Range
ThRef
S MIN
1
Ph1Hi
Ph2Hi
Sense
SetTh
H-Bias
C INT
Vcc