LTC1535C View Datasheet(PDF) - Linear Technology
Part Name
Description
MFG CO.
'LTC1535C' PDF : 18 Pages View PDF
LTC1535
APPLICATIONS INFORMATION
Table 1. List of Transformers Designed for LTC1535
MANUFACTURER
PART NUMBER
DC ISOLATION
VOLTAGE
(1 SECOND)
Cooper
CTX02-14659
500V
Cooper
CTX02-14608
3.75kVAC
Epcos AG (Germany) B78304-A1477-A3
500V
(USA)
Midcom
31160R
1.25kV
Minntronix
4810796R
3kVAC
Pulse FEE (France)
P1597
500V
Sumida (Japan)
S-167-5779
100V
Transpower
TTI7780-SM
500V
PHONE NUMBER
(888) 414-2645
(888) 414-2645
(0 89) 636-2 80 00
(800) 888-7724
(605) 886-4385
(605) 884-0195
(33) 3 84 35 04 04
03-3667-3320
(775) 852-0140
Table 2. Fault Mode Behavior
FUNCTION (PINS)
DC/DC Converter (2, 3)
RO (28) RE = 0V
RE = VCC
RE = Floating
VCC > VUVH
VCC2 > VUVH
On
Active
Hi-Z
Active
RO2 (17)
Active
Driver Outputs
Y and Z (13, 12)
Active
Communiactions Across
Isolation Barrier
Fault Indicator on RE (27)
Active
Low
VCC < VUVL
VCC2 > VUVH
On
Forced-High
Hi-Z
Hi-Z
Active
Hi-Z
Disabled
High
VCC > VUVH
VCC2 < VUVL
On
Forced-High
Hi-Z
Hi-Z
Active
Hi-Z
Disabled
High
VCC < VUVL
VCC2 > VUVL
On
Forced High
Hi-Z
Hi-Z
Active
Hi-Z
Disabled
High
THERMAL
SHUTDOWN
Off
Forced-High
Hi-Z
Hi-Z
Active
Hi-Z
Disabled
High
Table 3. Driver Function Table
INPUTS
RE
DE
DI
X
1
1
X
1
0
X
0
X
Note: Z = high impedance, X = don’t care
OUTPUTS
Y
Z
1
0
0
1
Z
2
Table 4. Receiver Function Table
INPUTS
RE
DE
A-B
0
X
≥ VTH(MAX
0
X
≤ VTH(MIN)
0
X
Inputs Open
0
X
Inputs Shorted
1
X
≥ VTH(MAX)
1
X
≤ VTH(MIN)
1
X
Inputs Open
1
X
Inputs Shorted
Note: Z = high impedance, X = don’t care
OUTPUTS
RO
R02
1
1
0
0
1
1
1
1
Z
1
Z
0
Z
1
Z
1
1535fb
12
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