Datasheet

LTC1535
12
1535fb
APPLICATIONS INFORMATION
Table 1. List of Transformers Designed for LTC1535
MANUFACTURER PART NUMBER
DC ISOLATION
VOLTAGE
(1 SECOND) PHONE NUMBER
Cooper CTX02-14659 500V [phone]
Cooper CTX02-14608 3.75kVAC [phone]
Epcos AG (Germany)
(USA)
B78304-A1477-A3 500V (0 89) 636-2 80 00
[phone]
Midcom 31160R 1.25kV [phone]
Minntronix 4810796R 3kVAC [phone]
Pulse FEE (France) P1597 500V (33) 3 84 35 04 04
Sumida (Japan) S-167-5779 100V 03-3667-3320
Transpower TTI7780-SM 500V [phone]
Table 2. Fault Mode Behavior
FUNCTION (PINS)
V
CC
> V
UVH
V
CC2
> V
UVH
V
CC
< V
UVL
V
CC2
> V
UVH
V
CC
> V
UVH
V
CC2
< V
UVL
V
CC
< V
UVL
V
CC2
> V
UVL
THERMAL
SHUTDOWN
DC/DC Converter (2, 3) On On On On Off
RO (28) RE = 0V Active Forced-High Forced-High Forced High Forced-High
RE = V
CC
Hi-Z Hi-Z Hi-Z Hi-Z Hi-Z
RE = Floating Active Hi-Z Hi-Z Hi-Z Hi-Z
RO2 (17) Active Active Active Active Active
Driver Outputs
Y and Z (13, 12)
Active Hi-Z Hi-Z Hi-Z Hi-Z
Communiactions Across
Isolation Barrier
Active Disabled Disabled Disabled Disabled
Fault Indicator on RE (27) Low High High High High
Table 3. Driver Function Table
INPUTS OUTPUTS
RE DE DI Y Z
X1 1 1 0
X1 0 0 1
X0 X Z 2
Note: Z = high impedance, X = don’t care
Table 4. Receiver Function Table
INPUTS OUTPUTS
RE DE A-B RO R02
0 X ≥ V
TH(MAX
11
0 X ≤ V
TH(MIN)
00
0 X Inputs Open 1 1
0 X Inputs Shorted 1 1
1 X ≥ V
TH(MAX)
Z1
1 X ≤ V
TH(MIN)
Z0
1 X Inputs Open Z 1
1 X Inputs Shorted Z 1
Note: Z = high impedance, X = don’t care