Document
UTC AN6650
LINEAR INTEGRATED CIRCUIT
MOTOR SPEED CONTROL CIRCUIT
DESCRIPTION
The UTC AN6650 is a monolithic integrated circuit, designed for the tape recorder.
FEATURES
*Wide operating supply voltage: Vcc=1.8V-7V *Few external components *Easy speed control mode
DIP-8
BLOCK DIAGRAM
Comp. Input VREFVREF+ VCC
4
1k Ω
1
2
Reference Voltage
3
Start Circuit
10k Ω 10k Ω
Motor
7 8
Phase
5
GND
6
GND
ABSOLUTE MAXIMUM RATINGS(Ta=25°C)
PARAMETER
Supply Voltage Terminal Voltage Terminal 8 Voltage Supply Current Terminal 7 Current Power Dissapation Operating Temperature Storage Temperature *Test Time<5µs
SYMBOL
VCC Vn(n=1,2,3,4) V8 ICC* I7 PD TOPR TSTQ
VALUE
7.5 -0.5 to 7.5 -0.5 to 1 1000 1000 750 -20 to 70 -40 to 150
UNIT
V V V mA mA mW °C °C
UTC
UNISONIC TECHNOLOGIES CO., LTD.
1
QW-R109-002,A
UTC AN6650
PARAMETER
Quiescent Circuit Current Reference Voltage Start Voltage Saturation Voltage Reference Voltage Characteristics
LINEAR INTEGRATED CIRCUIT
TEST CONDITIONS
VCC=3V VCC=3V £ ¬ R2-1>10kΩ 30mAcurrent flow to Ra VCC=1.8V,Ra=4.7Ω VCC=1.8V~7.0V 1.20
ELECTRICAL CHARACTERISTICS(Ta=25°C, Vcc=6V, f=1KHZ, unless otherwise specified)
SYMBOL
ICC VREF VCC(S) VSAT
∆VREF VREF ∆VCC
MIN
TYP
2 1.28 1.0 0.2 0.1
MAX
3 1.35 1.2 0.5 1.25
UNIT
mA V V V %/V
TEST CIRCUIT
1 4 2 2 1
-1.25
Output Voltage Characteristics
∆VA VA ∆VCC
VCC=1.8V~7.0V
-1.2
0.1
1.2
%/V
3
Reference Voltage Current Characteristics Reference Voltage Temperature Characteristics
∆VREF VREF ∆I7 ∆VREF VREF ∆TA
I7=1mA~20mA
-0.2
0.01
0.2
%/mA
4
TA=-20~+60°C,VCC=3.0V
0.01
%/°C
4
TEST CIRCUIT
V 8 7 6 5
Ra 4.7Ω
8
7
6
5
0.1 µF
0.1 µF
1
2
3
4
1 µF 9.1kΩ
1
1kΩ
2
0.47Ω
3
4
1 µF
10kΩ
A VCC
∆VREF VREF
VCC
FIG.1 (Icc,
∆VCC
)
FIG 2 (Vcc(s),Vsat)
UTC
UNISONIC TECHNOLOGIES CO., LTD.
2
QW-R109-002,A
UTC AN6650
8 Va
Ra 4.7Ω 0.1 µF
LINEAR INTEGRATED CIRCUIT
7 6 5 8 7 6 5
0.1 µF
1
9.1k Ω 1kΩ
2
10Ω
3
4
1 µF
A
1
9.1k Ω 1kΩ
2
10Ω
3
4
1 µF
VCC
V
FIG 4
VCC
FIG.3
UTC
UNISONIC TECHNOLOGIES CO., LTD.
3
QW-R109-002,A
.