SP690T_06 Datasheet, PDF (4/20 Pages) Sipex Corporation – 3.0V/3.3V Low Power Microprocessor Supervisory with Battery Switch-Over

SPECIFICATIONS (continued)
V_CC = 3.17V to 5.50V for the SP690T/SP80_T, V_CC = 3.02V to 5.50V for the SP690S/SP80_S, V_CC = 2.72V to 5.50V for the SP690R/SP80_R, V_BATT = 3.60V, and
T = T to T unless otherwise noted. Typical values taken at T = +25^OC.
A
MIN
MAX
AMB
NOTE 1: The following are tested at V_BATT = 3.6V and V_CC = 5.5V: V_CC supply current, watchdog
functionality, logic input leakage, PFI functionality, and the RESET and RESET states. The state of
RESET or RESET and PFO is tested at V = V (min).
CC
CC
NOTE 2: Tested V_BATT = 3.6V, V_CC = 3.5V and 0V.
NOTE 3: Leakage current into the battery is tested under the following worst-case conditions: V_CC
= 5.5V, V = 1.8V and at V = 1.5V, V = 1.0V.
BATT
CC
BATT
NOTE 4: "-" equals the battery-charging current, "+" equals the battery-discharging current.
NOTE 5: When V_SW > V_CC > V_BATT, V_OUT remains connected to V_CC until V_CC drops below V_BATT. The
V_CC-to-V_BATT comparator has a small 25mV typical hysteresis to prevent oscillation.
NOTE 6: When V_BATT > V_CC > V_SW, V_OUT remains connected to V_CC until V_CC drops below the battery
switch threshold, V .
SW
NOTE 7: V_OUT switches from V_BATT to V_CC when V_CC rises above the reset threshold, independent of
V_BATT. Switchover back to V_CC occurs at the exact voltage that causes RESET to go HIGH (on the
SP804_ and SP805_ RESET goes LOW). Switchover occurs 200ms prior to reset.
NOTE 8: The reset threshold tolerance is wider for V_CC rising than for V_CC falling to accommodate the
10mV typical hysteresis, which prevents internal oscillation.
NOTE 9: SP690_ and SP802_ devices only.
NOTE 10: SP804_ and SP805_ devices only.
NOTE 11: The leakage current into or out of the RESET pin is tested with RESET asserted (RESET
output high impedance).
SP690T/S/R JAN 30-06 SP690T/S/R, 802/T/S/R, 804T/S/R, 805T/S/R Low Power Microprocessor Supervisory
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© 2006 Sipex Corporation