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STLED524 データシート(PDF) 14 Page - STMicroelectronics

部品番号 STLED524
部品情報  Intelligent matrix LED display driver
PDF  72 Pages
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メーカー  STMICROELECTRONICS [STMicroelectronics]
ホームページ  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STLED524 データシート(HTML) 14 Page - STMicroelectronics

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Electrical characteristics
STLED524
14/72
DocID026217 Rev 1
dCLKOUT
Duty cycle of the clock out signal
60
fEXT_MAX
Maximum frequency of the
external clock signal
VIN = 2.7 V to 5.5 V
1.25
MHz
dCLKIN
Duty cycle of the external clock
signal
VIN = 2.7 V to 5.5 V
30
70
%
TINTTOEXTCLK
Transition time from internal to
external clock
10
TCLKEX
Power switches
RDS(on)
P-channel on-resistance (boost)
230
m
Ω
N-channel on-resistance (boost)
130
m
Ω
RDS(on)
P-channel on-resistance (ROW 0
to ROW 4)
500
m
Ω
N-channel on-resistance (ROW 0
to ROW 4)
200
m
Ω
RDS(on)
Bypass switch on-resistance
m
Ω
ILKG-LX
Coil leakage current
VIN = VSW2 = 4.0 V
1
µA
Time and delay
TCLK
Clock period
1.667
µs
TRTCR
Delay between row rising edge
and column rising edge
18
TCLK
TRTCF
Delay between column falling
edge and row falling edge
18
TONMIN
PWM minimum on-time
2
TONMAX
PWM maximum on-time
510
TFRAME
Frame period
2560
TROW
Row duration
512
Reset
TRST
Minimum pulse width on RESET
pin
100
µs
1.
It is strongly recommended to connect VDD pin to VSUP pin directly.
2.
It is valid only if LED matrix is not farther than 10 cm from the driver, otherwise ceramic capacitors should be connected
between COLx pin and ground to improve ripple.
Table 6. Electrical characteristics (continued)
Symbol
Parameter
Test conditions
Min.
Typ.
Max.
Unit



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