X55060 Datasheet, PDF (7/23 Pages) Intersil Corporation – Dual Voltage Monitor with Integrated System Battery Switch and EEPROM

X55060
Resetting the V_TRIP Voltage
To reset V_TRIP1, apply greater than 3V to V_CC
(V1MON). To reset V_TRIP2, apply greater than 3V to
both V_CC and V2MON. Next, tie the WP pin to the
programming voltage V_P. Then send the WREN
command and write to address 03h or 0Dh to reset the
V_TRIP1 or V_TRIP2 respectively (followed by data byte
00h). The CS going LOW to HIGH after a valid write
operation initiates the programming sequence. Bring
WP LOW to complete the operation.
Note: This operation does not change the contents of
the EEPROM array.
Figure 3. Set V_TRIPX Level Sequence
WP
V_P = 10-15V
CS
SCK
01234567
SI
06h
WREN
0 1 2 3 4 5 6 7 8 9 10 20 21 22 23
02h
WRITE
16 Bits
0001h/000Bh
ADDRESS
Addr 01h: Set V_TRIP1
Addr 0Bh: Set V_TRIP2
00h
DATA
Figure 4. Reset V_TRIPX Level Sequence
WP
V_P = 10-15V
CS
SCK
01234567
SI
06h
WREN
0 1 2 3 4 5 6 7 8 9 10 20 21 22 23
02h
WRITE
16 Bits
0003h/000Dh
ADDRESS
Addr 03h: Reset V_TRIP1
Addr 0Dh: Reset V_TRIP2
00h
DATA
7
FN8133.0
March 28, 2005