5-Channel Motor Driver phase, full-wave, linear motor driver Buil
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KA9260D
5-Channel Motor Driver
phase, full-wave, linear motor driver Built-in (Thermal shutdown) circuit Built-in regulator (With external transistor) Built-in mute circuit Built-in loading motor speed control circuit Wide operating supply voltage range: 6V~13.2V
Description
KA9260D monolithic integrated circuit, suitable 5-ch motor driver which drives focus actuator, tracking actuator, sled motor, spindle motor loading motor system.
28-SSOPH-375
Typical Applications
Compact disk player (CDP) Video compact disk player (VCD) Automotive compact disk player (CDP) Other compact disk media
Ordering Information
Device KA9260CD KA9260CDTF Package 28-SSOPH-375 28-SSOPH-375 Operating Temp. -25°C +75°C -25°C +75°C
Rev. 1.0.1 February. 2000.
©2000 Fairchild Semiconductor International
DO1.1
GND3
Assignments
DO1.2
DO4.2
DI1.1
DO4.2
DI1.2
DI4.2
DI4.1
VREF
MUTE
VCC2
(GND)
KA9260D
GND1
DI5.1
DO2.1
DO2.2
GND2
DI5.2
(GND)
VCC1
DO3.2
DO3.1
DO5.2
DO5.1
KA9260D
KA9260D
Definitions
Number Name DO1.1 DO1.2 DI1.1 DI1.2 MUTE GND1 DI5.1 DO2.1 DO2.2 GND2 DI5.2 DO5.1 DO5.2 DO3.1 DO3.2 VCC1 VCC2 VREF DI4.1 DI4.2 DO4.1 DO4.2 GND3 Focus output Focus output Focus input Focus input (Adjustable) Regulator base Regulator output, Mute Ground Loading input Spindle input Spindle output Spindle output Ground Loading input Loading output Loading output Sled output Sled output Sled input Loading motor speed control Supply voltage Supply voltage 2.5V bias Tracking input (Adjustable) Tracking input Tracking output Tracking output Ground Function Description
KA9260D
Internal Block Diagram
DO4.2
DO4.1
DO3.2
DO3.1
DO5.2
VREF
VCC2
VCC1
DI4.2
DI4.1
(GND)
Level shift
Level shift
Level shift
Regulator Mute
Level shift
DO1.1
DO1.2
DI1.1
DI1.2
MUTE (GND)
GND1
DI5.1
DO2.1
DO2.2
GND2
DI5.2
2.5V
Level shift
COMP
DO5.1
GND3
KA9260D
Equivalent Circuits
Driver input (Except loading motor driver) Driver output
2.5V
0.58k VREF1
Loading motor driver input
Loading motor speed control input
Mute input
Bias input
Drive input
2.5V
KA9260D
Absolute Maximum Ratings (Ta= 25°C)
Parameter Maximum supply voltage Power dissipation Operating temperature Storage temperature Maximum current output Symbol TOPR TSTG IOMAX Value
note
Unit
+150
NOTE: When mounted 76mm 114mm 1.57mm (Phenolic resin material). Power dissipation reduces 13.6mW using above Ta=25°C. exceed (Safe Operating Area).
Power Dissipation Curve
(mW) 3,000 2,000
1,000
Ambient temperature, [°C]
Recommended Operating Condition (Ta= 25°C)
Parameter Operating supply voltage Symbol Value 13.2 Unit
KA9260D
Electrical Characteristics
(Ta=25°C, VCC=8V, RL=8, f=1kHz, unless otherwise specified) Parameter Quiescent circuit current Mute-on current Mute-on voltage Mute-off voltage REGULATOR Output voltage Load regulation Line regulation Input offset voltage Output offset voltage Maximum source current Maximum sink current Maximum output voltage Maximum output voltage Closed-loop voltage gain Closed-loop voltage gain Ripple rejection ratio Slew rate VREG VRL3 VOO1 ISOURCE1 RL=8VCC ISINK1 VOM1 VOM2 AVF1 AVF2 RL=8GND VIN=0.7V VIN=7V VIN=0.1VRMS VIN=1VRMS, RIN=10k VIN=0.1VRMS, f=120Hz 120Hz, VIN=1VRMS, Square wave VPIN9=5V, VPIN14=0V, RL=45 VPIN9=0V, VPIN14=5V, RL=45 VCTL=3.54.5V, VPIN9=5V VPIN14=0V, RL=45 VCTL=3.54.5V, VPIN9=0V VPIN14=5V, RL=45 IL=100400mA, VPIN9=5V, VPIN14=0V IL=100400mA, VPIN9=0V, VPIN14=5V VPIN9=5V, VPIN14=5V VPIN9=0V, VPIN14=0V IL=100mA IL=0200mA VCC=613V, IL=100mA 0.25 0.25 -4.5 -3.7 Symbol ICCQ IMUTE VMON VMOFF Conditions Under no-load 7=GND Min. Typ. Max. Units
DRIVER (Except loading motor driver)
LOADING MOTOR DRIVER (Unless otherwise specified, VCTL=open) Output voltage Output voltage Output voltage regulation (CTL) Output voltage regulation (CTL) Load regulation Load regulation Output offset voltage Output offset voltage VOCTL1 VOCTL2 VRL1 VRL2 VOO2 VOO3
KA9260D
Application Information
MUTE
High
Mute circuit Turn-off Turn-on
Output driver bias
When mute open voltage mute below 0.5V, mute circuit activated that output circuit will muted. When voltage mute above mute circuit stopped output circuit operated normally. chip temperature rises above 175°C, then (Thermal Shutdown) circuit activated output circuit muted.
(THERMAL SHUTDOWN)
VREF Output driver bias
VREF output voltage band-gap-referenced biasing circuit acts input voltage circuit. base-emitter voltage TR,Q11 designed turn-on below voltage. VREF (R11 R12) 400mV When chip temperature rises 175°C, then turn-on voltage would drop down 400mV. Hence, would turn output circuit will muted.
REGULATOR
VREF 100µF KSB772 VOUT (5V)
KA9260D
VREF output voltage band-gap-referenced biasing circuit reference voltage regulator. external circuit composed transistor, KSB772 capacitor, 100µF, capacitor used ripple eliminator should have good temperature characteristics. output voltage, VOUT decided follows. VOUT VREF where, VREF R2=R3 LOADING MOTOR DRIVER
COMP
VREF1 VREF1 Buffer Buffer
input voltages pairs applied input respectively. When input voltages applied input #14, then output comparator depends input voltage status. shown above diagram, difference [VREF1 [VREF1 R)], applied both terminals motor. direction motor decided voltage difference, output characteristics follows, 9=5V #14=0V, then 15=+V #16= hence motor turn forward direction. 9=0V #14=5V, then #16=+V, hence motor turn reverse direction. 9=5V #14=5V, then V=0V, hence motor stop. 9=0V #14=0V, then V=0V, hence motor stop. When rotation speed control loading motor desired, refer circuit below. LOADING MOTOR SPEED CONTROL
(8V)
(8V)
torque loading motor when used with OPEN, then should used above diagram. desired torque could obtained selecting appropriate resistor shown left diagram. necessary, zener diode used right diagram. maximum torque obtained when applied voltage about 6.8V VCC=8V).
KA9260D
DRIVER (EXCEPT LOADING MOTOR DRIVER)
VREF (2.5V)
Level shift
Buffer
100k Buffer
voltage, VREF, reference voltage given bias voltage #23. input signal through amplified 10k/10k times then level shift. level shift produces current difference between input signal arbitrary reference signal. current produced into driver buffer. Driver buffer operates power output stage according state input signal. output stage driver motor rotating forward direction operating other hand, operating, motor rotating reverse direction. When input voltage through below VREF, then direction motor forward direction. When input voltage through above VREF, then direction motor reverse direction.
When bias voltage below 1.4V, then output circuit muted. Hence normal operation, bias voltage should used 1.6V~6.5V. Connect by-pass capacitor, 0.1µF between supply voltage source.
VCC2 VCC1
Radiation connecting internal package. Connect external GND.
KA9260D
Typical Performance Characteristics
16.00 14.00 12.00 8.00 7.00 6.00 5.00 4.00 3.00 2.00 pin23=2.5 1.00 0.00 pin23=2.5
Imute
Icc[mA]
10.00 8.00 6.00 4.00 2.00 0.00
Imute[mA]
Vcc[V]
Vcc[V]
Isink
1000
Isink[mA]
Avf[mA]
pin23=2.5 RL=8
pin23=2.5 RL=8
Vcc[V]
Vcc[V]
Vreg
Vom[mA]
pin23=2.5
Vreg[mA]
pin23=2.5 RL=8
Vcc[V]
Vcc[V]
KA9260D
Typical Performance Characteristics (Continued)
Frequency
Avf[dB]
10000 1000000
Frequency [Hz]
KA9260D
Test Circuits
SW13 SW12
SW14 SW21 SW19 TRACKING 10µF Ripple 100µF SW17 2.5V SW16 10µF SW15 SW11 SW20 SLED SW10
SW18
GND3 DO4.2 DO4.1 DI4.2 DI4.1
VREF VCC2
VCC1
DO3.2 DO3.1 DO5.2 DO5.1
KA9260D
DO1.1 DO1.2 DI1.1 DI1.2 Focus 100µF Spindle Loading forwaed KSB772 Mute Loading reverse MUTE DI5.1 DO2.1 DO2.2 GND2 DI5.2
KA9260D
Application Circuits
SERVO PRE-AMP
CONTROLLER
FOUCS
TRACKING
BIAS
SLED
SPINDLE
CONTROL
FORWARD
REVERSE
TRACKING ACTUATOR
SLED MOTOR
LOADING MOTOR
DI4.1
GND3 DO4.2 DO4.1 DI4.2
VREF VCC2
VCC1
DO3.2 DO3.1 DO5.2 DO5.1
KA9260D
DO1.1 DO1.2 DI1.1 DI1.2 MUTE DI5.1 DO2.1 DO2.2 GND2 DI5.2
KSB772 FOCUS ACTUATOR 100µF
MUTE Low: High: SPINDLE MOTOR
KA9260D
DISCLAIMER FAIRCHILD SEMICONDUCTOR RESERVES RIGHT MAKE CHANGES WITHOUT FURTHER NOTICE PRODUCTS HEREIN IMPROVE RELIABILITY, FUNCTION DESIGN. FAIRCHILD DOES ASSUME LIABILITY ARISING APPLICATION PRODUCT CIRCUIT DESCRIBED HEREIN; NEITHER DOES CONVEY LICENSE UNDER PATENT RIGHTS, RIGHTS OTHERS. LIFE SUPPORT POLICY FAIRCHILD'S PRODUCTS AUTHORIZED CRITICAL COMPONENTS LIFE SUPPORT DEVICES SYSTEMS WITHOUT EXPRESS WRITTEN APPROVAL PRESIDENT FAIRCHILD SEMICONDUCTOR INTERNATIONAL. used herein: Life support devices systems devices systems which, intended surgical implant into body, support sustain life, whose failure perform when properly used accordance with instructions provided labeling, reasonably expected result significant injury user.
www.fairchildsemi.com 12/1/00 0.0m Stock#DSxxxxxxxx 2000 Fairchild Semiconductor International
critical component component life support device system whose failure perform reasonably expected cause failure life support device system, affect safety effectiveness.
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