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SP690TCN Datasheet(PDF) 4 Page - Sipex Corporation

Part # SP690TCN
Description  3.0V/3.3V Low Power Microprocessor Supervisory with Battery Switch-Over
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Manufacturer  SIPEX [Sipex Corporation]
Direct Link  http://www.sipex.com
Logo SIPEX - Sipex Corporation

SP690TCN Datasheet(HTML) 4 Page - Sipex Corporation

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SP690T/S/R JAN 30-06
SP690T/S/R, 802/T/S/R, 804T/S/R, 805T/S/R Low Power Microprocessor Supervisory
© 2006 Sipex Corporation
4
SPECIFICATIONS (continued)
V
CC = 3.17V to 5.50V for the SP690T/SP80_T, VCC = 3.02V to 5.50V for the SP690S/SP80_S, VCC = 2.72V to 5.50V for the SP690R/SP80_R, VBATT = 3.60V, and
T
A = TMIN to TMAX unless otherwise noted. Typical values taken at TAMB = +25
OC.
NOTE 1: The following are tested at V
BATT = 3.6V and VCC = 5.5V: VCC 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
CC = VCC(min).
NOTE 2: Tested V
BATT = 3.6V, VCC = 3.5V and 0V.
NOTE 3: Leakage current into the battery is tested under the following worst-case conditions: V
CC
= 5.5V, V
BATT = 1.8V and at VCC = 1.5V, VBATT = 1.0V.
NOTE 4: "-" equals the battery-charging current, "+" equals the battery-discharging current.
NOTE 5: When V
SW > VCC > VBATT, VOUT remains connected to VCC until VCC drops below VBATT. The
V
CC-to-VBATT comparator has a small 25mV typical hysteresis to prevent oscillation.
NOTE 6: When V
BATT > VCC > VSW, VOUT remains connected to VCC until VCC drops below the battery
switch threshold, V
SW.
NOTE 7: V
OUT switches from VBATT to VCC when VCC 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 VCC 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).


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