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SM6780AS датащи(PDF) 8 Page - Nippon Precision Circuits Inc

номер детали SM6780AS
подробное описание детали  Ni-Cd/Ni-MH Battery Charger IC
PDF  11 Pages
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производитель  NPC [Nippon Precision Circuits Inc]
домашняя страница  http://www.npc.co.jp/en
Logo NPC - Nippon Precision Circuits Inc

SM6780AS датащи(HTML) 8 Page - Nippon Precision Circuits Inc

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SM6780AS
NIPPON PRECISION CIRCUITS—8
Maximum Charging Time (TIME)
The SM6780AS supports 3 different maximum
charging time settings, in quick charge and supple-
mental charge modes, which can be selected on the
3-level input TIME (HIGH, MID, LOW). HIGH
level is achieved by pull-up, LOW level by pull-
down, and MID level by a high-resistance voltage
divider arrangement to set the voltage at VDD/2. The
voltage level on TIME should only be switched in
standby mode.
VDD = 5V, Ta = 25°C
Quick (Supplemental) Charge Inhibit (INH)
When INH goes HIGH, quick charge mode or sup-
plemental charge mode operation stops. While INH
is HIGH, the internal timer stops and pulse trickle
charging occurs. When INH goes LOW, the charging
mode is restored to the previously active mode and
the internal timer restarts.
Standby Mode
When the BATT input voltage is
≥ V
STB, the
SM6780AS is in standby mode. In this mode, the
internal timer is reset, and the LEDN and CHGN
outputs become high impedance. Standby mode is
released when the voltage applied to BATT falls
below VSTB.
TIME voltage level
Quick charge/supplemental charge time (minutes)
min
typ
max
HIGH
192
240
288
MID
96
120
144
LOW
648096



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