ZXBM1016 Datasheet, PDF (1/12 Pages) Zetex Semiconductors – High efficiency variable speed single-phase fan motor controller

ZXBM1016
High efficiency variable speed single-phase fan motor controller
Description
The ZXBM1016 is a high efficiency, low noise,
single-phase, DC brushless motor pre-driver
with PWM variable speed control and current
control suitable for fan and blower motors.
High efficiency and low noise are achieved
using a novel technique (patent pending) for
commutation current control.
Features
• Compliant with external PWM speed control
• Compliant with thermistor control
• Minimum speed setting
• High efficiency utilizing tail-end current control
• Low noise
• Auto restart
• Built in Hall amplifier
• Hall bias
• Speed pulse (FG) output
• Integrated current control
• Up to 18V input voltage (60V with external regulator)
• Small TSSOP20 package
Applications circuit
The controllers are primarily intended to meet
industry standard OEM fan specifications where
external PWM control are applied, however,
they can also be used with other thermal control
techniques using an external voltage, PWM
signal or thermistor.
Applications
• Mainframe and personal computer fans and
blowers
• Instrumentation fans
• Central heating blowers
• Automotive climate control
12V
D1
1N4148
VCC
C1
1μF
H+
Hall
R14
47kΩ
R12
1kΩ
R17
10kΩ
Q5
CONTROL
R15
4.7kΩ
R16
4.7kΩ
R13
Q6
1kΩ
FG
C4
0.1μF
R18
4.7kΩ
0V
R9
12kΩ
R10
16kΩ
C2
100pF
H-Bias
H-
ThRef
SPD
SMIN
CPWM
CLCK
R11 Range
C3 220kΩ
0.47μF
ZXBM1016
D2
1N4004
Ph2Hi
R6
1kΩ
R5 4
100Ω
Ph1Lo R1
470Ω
Ph2Lo R2
470Ω
Ph1Hi R3
2
100Ω
SetThRef
R7
Sense 33kΩ
3
3
Q1-4
ZXMC
3A17DN8
5&6
5&6
7 & 8 ^W1 7 & 8
1
1
SetTh
FG
CINT
Gnd
R8
470Ω
C5
0.47μF
Rsense
0.1Ω
R4
1kΩ
4
C6
2.2μF
2
TSSOP20
Ordering information - TSSOP20
Device
ZXBM1016ST20TA
ZXBM1016ST20TC
Device marking
ZETEX
ZXBM1016
Date code
Reel size
(inches)
7 (180mm)
13 (330mm)
Issue 1 - February 2007
© Zetex Semiconductors plc 2007
Tape width
(mm)
16
16
1
Quantity
per reel
1000
2,500
www.zetex.com