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UA1538 Scheda tecnica(PDF) 7 Page - Unisonic Technologies

Il numero della parte UA1538
Spiegazioni elettronici  4-CH MOTOR DRIVER FOR PORTABLE CD PLAYERS
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Produttore elettronici  UTC [Unisonic Technologies]
Homepage  http://www.utc-ic.com
Logo UTC - Unisonic Technologies

UA1538 Scheda tecnica(HTML) 7 Page - Unisonic Technologies

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UA1538
LINEAR INTEGRATED CIRCUIT
UNISONICTECHNOLOGIESCO.,LTD
7
www.unisonic.com.tw
QW-R109-023,B
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Vref OFF Threshold Voltage
VrefOFF
IN1=IN2=IN3=IN4=1.8V
0.8
V
BRAKE1 Brake Current
IBRAKE1
Current difference between
BRAKE pin "H" time and "L"
time.
4
7
10
mA
PWM Power Supply Driving
PSW Sink Current
IPSW
IN1=2.1V
10
13
17
mA
HVcc Level Shift Voltage
VSHIF
IN1=1.8V, HVcc-OUT1F
0.35
0.45
0.55
V
HVcc Leak Current
IHLK
HVcc=9.0V,
VSYS1=VSYS2=BATT=0V
0
5
μA
PWM Amp Transfer Gain
GPWM
IN1=1.8V, HVcc=1.2 ~ 1.4V
1/60
1/50
1/40
1/kΩ
DC-DC Converter
Error Amp
VSYS1 Threshold Voltage
VS1TH
3.05
3.20
3.35
V
EO Pin Output Voltage "H"
VEOH
EI=0.7V, Io=-100µA
1.4
1.6
V
EO Pin Output Voltage "L"
VEOL
EI=1.3V, Io=100µA
0.3
V
Short Circuit Protection
SPRT Pin Voltage
VSPR
EI=1.3V
0
0.1
V
EO=H SPRT Pin Current1
ISPR1
EI=0.7V
6
10
16
μA
OFF=L SPRT Pin Current2
ISPR2
EI=1.3V, OFF=0V
12
20
32
μA
SPRT Pin Current3 Over-Voltage
ISPR3
EI=1.3V, BATT=9.5V
12
20
32
μA
SPRT Pin Impedance
RSPR
175
220
265
SPRT Pin Threshold Voltage
VSPTH
EI=0.7V, CT=0V
1.10
1.20
1.30
V
Over-Voltage Protection Detect
VHVPR
BSEN Pin Voltage
8.0
8.4
9.0
V
Transistor Driving
SW Pin Output Voltage1 "H"
VSW1H
BATT=CT=1.5V,
VSYS1=VSYS2=0V,
Io=-2mA Starting Time
0.78
0.98
1.13
V
SW Pin Output Voltage2 "H"
VSW2H
CT=0V, Io=-10mA, EI=0.7V,
SPRT=0V
1.00
1.50
V
SW Pin Output Voltage2 "L"
VSW2L
CT=2.0V, Io=10mA
0.30
0.45
V
SW Pin Oscillating Frequency1
fSW1
CT=470pF, VSYS1=VSYS2=0V
Starting Time
65
80
95
kHz
SW Pin Oscillating Frequency2
fSW2
CT=470pF, CLK=0V
60
70
82
kHz
SW Pin Oscillating Frequency3
fSW3
CT=470pF
88.2
kHz
SW Pin Minimum Pulse Width
TSWmin
CT=470pF, EO=0.5V→0.7V
Sweep
0.01
0.60
μs
Pulse Duty Start
DSW1
CT=470pF,VSYS1=VSYS2=0V
40
50
60
%
Max. Pulse Duty At Self-Running
DSW2
CT=470pF, EI=0.7V, CLK=0V
70
80
90
%
Max. Pulse Duty At CLK
Synchronization
DSW3
CT=470pF, EI=0.7V
65
75
85
%
Interface
OFF Pin Threshold Voltage
VOFTH
EI=1.3V
VSYS1-
2.0
V
OFF Pin Bias Current
IOFF
OFF=0V
75
95
115
μA
START Pin ON Threshold Voltage
VSTATH1
VSYS1=VSYS2=0V, CT=2.0V
BATT-
1.0
V
START Pin OFF Threshold Voltage
VSTATH2
VSYS1=VSYS2=0V, CT=2.0V
BATT-
0.3
V
START Pin Bias Current
ISTART
START=0V
10
13
20
16
30
19
μA
CLK Pin Threshold Voltage "H"
VCLKTHH
2.0
V
CLK Pin Threshold Voltage "L"
VCLKTHL
0.8
V
CLK Pin Bias Current
ICLK
CLK=3.2V
10
μA


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