VBB
參數(shù)資料
型號: MCP2021A-330E/MD
廠商: Microchip Technology
文件頁數(shù): 14/48頁
文件大?。?/td> 0K
描述: IC TXRX LIN 3.3V LDO 8-DFN
產(chǎn)品培訓(xùn)模塊: Microchip MCP20xx LIN Transceiver Overview
標(biāo)準(zhǔn)包裝: 91
系列: *
2012 Microchip Technology Inc.
DS22298A-page 21
MCP2021A/2A
2.4
AC Specification
AC CHARACTERISTICS
VBB = 6.0V to 18.0V; TA = -40°C to +125°C
Parameter
Sym.
Min.
Typ.
Max.
Units
Test Conditions
Bus Interface - Constant Slope Time Parameters (DC specifications are for a VBB range of 6.0 to 18.0V)
Slope rising and falling
edges
tSLOPE
3.5
22.5
s
7.3V <= VBB <= 18V
Propagation Delay of
Transmitter
tTRANSPD
——
5.0
s
tTRANSPD = max (tTRANSPDR or
tTRANSPDF)
Propagation Delay of
Receiver
tRECPD
——
6.0
s
tRECPD = max (tRECPDR or
tRECPDF)
Symmetry of Propagation
Delay of Receiver rising
edge w.r.t. falling edge
tRECSYM
-2.0
2.0
s
tRECSYM = max (tRECPDF
tRECPDR)
RRXD 2.4 k
to VCC, CRXD
20 pF
Symmetry of Propagation
Delay of Transmitter rising
edge w.r.t. falling edge
tTRANSSYM
-2.0
2.0
s
tTRANSSYM = max (tTRANSPDF -
tTRANSPDR)
Bus dominant time-out time
tTO(LIN)
—25
mS
Time to sample FAULT/TXE
for bus conflict reporting
tFAULT
——
32.5
s
tFAULT = max (tTRANSPD +
tSLOPE + tRECPD)
Duty Cycle 1 @20.0 kbit/sec
.396
%tBIT
CBUS;RBUS conditions:
1nF; 1 k
| 6.8 nF; 660 |
10 nF; 500
THREC(MAX) = 0.744 x VBB,
THDOM(MAX) = 0.581 x VBB,
VBB =7.0V - 18V; tBIT = 50 s.
D1 = tBUS_REC(MIN) / 2 x tBIT)
Duty Cycle 2 @20.0 kbit/sec
.581
%tBIT
CBUS;RBUS conditions:
1nF; 1 k
| 6.8 nF; 660 |
10 nF; 500
THREC(MAX) = 0.284 x VBB,
THDOM(MAX) = 0.422 x VBB,
VBB =7.6V - 18V; tBIT = 50 s.
D2 = tBUS_REC(MAX) / 2 x tBIT)
Duty Cycle 3 @10.4 kbit/sec
.417
%tBIT
CBUS;RBUS conditions:
1nF; 1 k
| 6.8 nF; 660 |
10 nF; 500
THREC(MAX) = 0.778 x VBB,
THDOM(MAX) = 0.616 x VBB,
VBB =7.0V - 18V; tBIT = 96 s.
D3 = tBUS_REC(MIN) / 2 x tBIT)
Duty Cycle 4 @10.4 kbit/sec
.590
%tBIT
CBUS;RBUS conditions:
1nF; 1 k
| 6.8 nF; 660 |
10 nF; 500
THREC(MAX) = 0.251 x VBB,
THDOM(MAX) = 0.389 x VBB,
VBB =7.6V - 18V; tBIT = 96 s.
D4 = tBUS_REC(MAX) / 2 x tBIT)
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