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DS3984Z 데이터시트(PDF) 3 Page - Dallas Semiconductor

부품명 DS3984Z
상세설명  4-Channel Cold-Cathode Fluorescent Lamp Controller
PDF  24 Pages
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제조업체  DALLAS [Dallas Semiconductor]
홈페이지  https://www.maximintegrated.com/en.html
Logo DALLAS - Dallas Semiconductor

DS3984Z 데이터시트(HTML) 3 Page - Dallas Semiconductor

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4-Channel Cold-Cathode
Fluorescent Lamp Controller
_____________________________________________________________________
3
ELECTRICAL CHARACTERISTICS (continued)
(VCC = +4.5V to +5.5V, TA = -40°C to +85°C.)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
High-Level Output Voltage
(GA, GB)
VOH2
IOH2 = -1mA
VCC - 0.4
V
UVLO Threshold—VCC Rising
VUVLOR
4.3
V
UVLO Threshold—VCC Falling
VUVLOF
3.7
V
UVLO Hysteresis
VUVLOH
100
mV
SVM Threshold
VSVMT
1.8
2.0
2.2
V
SVM Hysteresis
VSVMH
50
mV
LCM and OVD Source Current
4µA
LCM and OVD Sink Current
4µA
LCM and OVD DC Bias Voltage
VDCB
1.35
V
LCM and OVD Input Resistance
RDCB
50
k
Ω
Lamp Off Threshold
VLOT
(Note 3)
0.3
0.4
0.5
V
Lamp Overcurrent Threshold
VLOC
(Note 3)
1.8
2.0
2.2
V
Lamp Regulation Threshold
VLRT
(Note 3)
0.9
1.0
1.1
V
OVD Threshold
VOVDT
(Note 3)
0.9
1.0
1.1
V
Lamp Frequency Range
fLF:OSC
40
80
kHz
Lamp Frequency Source
Frequency Tolerance
fLFS:TOL
LOSC resistor ±2% over temperature
-5
+5
%
Lamp Frequency Receiver
Duty Cycle
fLFR:DUTY
40
60
%
DPWM Frequency Range
fD:OSC
22.5
440.0
Hz
DPWM Source Frequency
Tolerance
fDSR:TOL
POSC resistor ±2% over temperature
-5
+5
%
DPWM Receiver Duty Cycle
fDFE:DUTY
40
60
%
DPWM Receiver
Frequency Range
fDR:OSC
22.5
440.0
Hz
DPWM Receiver
Minimum Pulse Width
tDR:MIN
(Note 4)
25
µs
BRIGHT Voltage—Minimum
Brightness
VBMIN
0.5
V
BRIGHT Voltage—Maximum
Brightness
VBMAX
2.0
V
Gate-Driver Output Rise/Fall Time
tR/tF
CL = 600pF
100
ns
GAn and GBn Duty Cycle
(Note 5)
44
%



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