LED drive controller
LED
、
TM1640
TM1640 LED () , MCU 、、LED 。,。 。SOP28。
、
• CMOS • (8 ×16 ), • ( 8 ) • (CLK,DIN) • :RC (450KHz+5%) • ...
Description
LED
、
TM1640
TM1640 LED () , MCU 、、LED 。,。 。SOP28。
、
CMOS (8 ×16 ), ( 8 ) (CLK,DIN) :RC (450KHz+5%) :SOP28
、:
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Page 1 of 10
Rev.:03
LED
、:
TM1640
DIN
7
, SCLK , SCLK 。
SCLK
8
SG1~SG8 GRID1~GRID11 GRID12~GRID16 VDD
()
9-16 18-28 1-5 17
,P
()
,N
5V±10%
VSS
6
、 : (Ta = 25℃, Vss = 0 V)
LED SEG LED GRID VDD VI1 IO1 IO2 PD Topt Tstg -0.5 ~+7.0 -0.5 ~ VDD + 0.5 -200 +20 400 -40 ~ +85 -65 ~+150 V V mA mA mW ℃ ℃
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Page 2 of 10
Rev.:03
LED
(Ta = -40~+85℃,Vss = 0 V)
VDD VIH 0.7 VDD 5 VDD V V
TM1640
-
VIL
0
-
0.3 VDD
V
-
(Ta = -40~+85℃,VDD = 4.5 ~ 5.5 V, Vss = 0 V
Ioh1 Ioh2 -20 -30 -50 mA -20 -25 -40 mA GRID1~GRID16, Vo = vdd-2V GRID1~GRID16, Vo = vdd-3V SEG1~SEG8 Vo=0.3V VO = 0.4V,dout VO = VDD – 3V, GRID1~GRID16 VI = VDD / VSS CLK,DIN CLK,DIN CLK,DIN ,
IOL1 Idout Itolsg II VIH VIL VH IDDdyn
80 4 0.7 VDD -
140 0.35 -
5 ±1
mA mA % μA V
0.3 VDD 5
V V mA
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Page 3 of 10
Rev.:03
LED
(Ta = -40~+85℃,VDD = 4.5 ~ 5.5 V)
fosc tPLZ tPZL 100 ns 450 300 KHz ns
TM1640
CLK → DIO CL = 15pF, RL = 10K Ω GRID1~ GRID16 SEG1~ SEG8
TTZH 1 TTZH 2
-
-
2
μs CL = 300p F
-
-
0.5
μs
TTHZ Fmax CI
1 -
-
120 15
μs MHz pF
CL = 300pF,Segn, Gridn 50% -
z (Ta = -40 ~+85℃,VDD = 4.5 ~ 5.5 V)
PWCLK PWSTB tSETUP tHOLD tWAIT 400 1 100 100 1 ns μs ns ns μs CLK↑→CLK↓
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