SAA1502ATS Просмотр технического описания (PDF) - Philips Electronics
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SAA1502ATS Datasheet PDF : 20 Pages
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Philips Semiconductors
Safety IC for Li-ion
Preliminary specification
SAA1502ATS
handbook, full pagewidth
charger/load
Vbat
1 kΩ
0.22
µF
VCC 2
VSS1 14
VSS2 5, 6
Cext
3
CONTROL
CIRCUIT
DO
SW2
CO VM
SW1
charger/load
SAA1502ATS
7, 8, 9, 10
Vd
11, 12 15
VM
ST
MGM309
Fig.3 Connection diagram.
handbook, cfuullrpreagnetwpirdothtection
SW1, SW2
current protection
SW1, SW2
Idch or Ich > Iprot
no charger/load
Idch or Ich > Iprot
no charger/load
discharge enable
SW1, SW2
VCC > 4.18 V or Ich > 280 mA
Idch > 1.5 mA
charge inhibit
SW1, SW2
VCC > 4.18 V
VCC < 3.95 V
VCC < 3.95 V
no charger present
normal operation
SW1, SW2
VCC < 2.3 V
VCC > 3.6 V
or
(Ich > 1.5 mA and VCC > 2.3 V)
discharge inhibit
SW1, SW2
power down
SW1, SW2
charger present
from all states
(except from power down and reset)
back to previous state
VCC > 2.25 V
Tstart(prot) ≥ 130 °C
Trel(prot) < 60 °C from all states
temperature protection
SW1, SW2
VCC < 1.9 V
reset
SW1, SW2
MGM310
1998 Jan 15
Fig.4 Flow diagram.
7
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