TV04A180JB-G Comchip Technology, TV04A180JB-G Datasheet - Page 16

• Manufacturer Part Number: TV04A180JB-G
• Description: TVS 400W 18V BIDIRECT SMA
• Manufacturer: Comchip Technology

Specifications of TV04A180JB-G

• Voltage - Reverse Standoff (typ): 18V
• Voltage - Breakdown: 20V
• Power (watts): 400W
• Polarization: Bidirectional
• Mounting Type: Surface Mount
• Package / Case: DO-214AC, SMA
• Channels: 1 Channel
• Clamping Voltage: 29.2 V
• Operating Voltage: 3.5 V
• Breakdown Voltage: 20 V
• Peak Surge Current: 40 A
• Peak Pulse Power Dissipation: 400 W
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

14
Sector Protect
Temporary Sector
Unprotect Mode
Algorithm
Device failed
Increment
PLSCNT
PLSCNT
= 25?
No
Yes
No
No
Write 60h to sector
Protect: Write 40h
to sector address
A6 = 0, A1 = 1,
Protect another
Sector Protect:
sector address
RESET# = V
A1 = 1, A0 = 0
A1 = 1, A0 = 0
Sector Protect
from RESET#
Verify Sector
Set up sector
Cycle = 60h?
Remove V
PLSCNT = 1
address with
with A6 = 0,
with A6 = 0,
Data = 01h?
Wait 150 µs
Write reset
Read from
First Write
command
Wait 1 μs
complete
address
START
sector?
Figure 2. In-System Sector Protect/Unprotect Algorithms
A0 = 0
Yes
No
Yes
ID
ID
Yes
PLSCNT = 1
Reset
D A T A S H E E T
Am29F160D
The indicated portion
unprotected sectors
Protect all sectors:
of the sector protect
prior to issuing the
unprotect address
algorithm must be
performed for all
Sector Unprotect
first sector
Algorithm
Device failed
Increment
PLSCNT
PLSCNT
= 1000?
Yes
No
No
No
Write 60h to sector
Set up first sector
Sector Unprotect:
Unprotect: Write
Sector Unprotect
A6 = 1, A1 = 1,
A6 = 1, A1 = 1,
sector address
RESET# = V
A1 = 1, A0 = 0
40h to sector
from RESET#
Verify Sector
address with
Am29F160D_00_D10 April 23, 2010
Cycle = 60h?
PLSCNT = 1
address with
with A6 = 1,
Remove V
Data = 00h?
Write reset
Wait 15 ms
Read from
Last sector
First Write
command
All sectors
protected?
Wait 1 μs
complete
address
verified?
START
A0 = 0
A0 = 0
Yes
Yes
Yes
Yes
ID
ID
No
No
Temporary Sector
Unprotect Mode
next sector
address
Set up