s-8244aafph-ceftfg Seiko Instruments Inc., s-8244aafph-ceftfg Datasheet - Page 8

• Manufacturer Part Number: s-8244aafph-ceftfg
• Description: Battery Protection Ic For 1-serial To 4-serial-cell Pack Secondary Protection
• Manufacturer: Seiko Instruments Inc.

8
BATTERY PROTECTION IC FOR 1-SERIAL TO 4-SERIAL-CELL PACK (SECONDARY PROTECTION)
S-8244 Series
Test Circuits
(1) Test Condition 1, Test Circuit 1
(2) Test Condition 2, Test Circuit 1
(3) Test Condition 3, Test Circuit 1
• Set V1, V2, V3 and V4 to 3.5 V and gradually increase V3.
• Next gradually decrease V3.
Conditions:
• Set switches 1 and 2 to OFF for CMOS output models.
• Set switch 1 to ON and switch 2 to OFF for Nch open drain models.
• Set switch 1 to OFF and switch 2 to ON for Pch open drain models.
Definitions:
• Set V1, V2, V3 and V4 to 3.5 V and gradually increase V1:
• Next, gradually decrease V1:
Conditions:
• Set switches 1 and 2 to OFF for CMOS output models.
• Set switch 1 to ON and switch 2 to OFF for Nch open drain models.
• Set switch 1 to OFF and switch 2 to ON for Pch open drain models.
Definitions:
• Set V1, V2, V3 and V4 to 3.5 V and gradually increase V2.
• Next, gradually decrease V2.
Conditions:
• Set switches 1 and 2 to OFF for CMOS output models.
• Set switch 1 to ON and switch 2 to OFF for Nch open drain models.
• Set switch 1 to OFF and switch 2 to ON for Pch open drain models.
Definitions:
Overcharge detection voltage 3 (V
active “H” or Nch open drain) or “L” (for CMOS output active “L” or Pch open drain).
Overcharge detection voltage 1 (V
active “H” or Nch open drain) or “L” (for CMOS output active “L” or Pch open drain).
Overcharge hysteresis voltage (V
to “L” (for CMOS output active “H” or Nch open drain) or “H” (for CMOS output active “L” or Pch open
drain).
Overcharge hysteresis voltage (V
to “L” (for CMOS output active “H” or Nch open drain) or “H” (for CMOS output active “L” or Pch open
drain).
Overcharge hysteresis voltage (V
to “L” (for CMOS output active “H” or Nch open drain) or “H” (for CMOS output active “L” or Pch open
drain).
Overcharge detection voltage 2 (V
active “H” or Nch open drain) or “L” (for CMOS output active “L” or Pch open drain).
Seiko Instruments Inc.
CD1
CD2
CD3
CU3
CU1
CU2
) is defined as a difference between V
) is defined as a difference between V
) is defined as a difference between V
) is defined as V3 voltage when CO is turned to “H” (for CMOS output
) is defined as V1 voltage when CO is turned to “H” (for CMOS output
) is defined as V2 voltage when CO is turned to “H” (for CMOS output
CU3
CU1
CU2
and V1 when CO is turned
and V2 when CO is turned
and V3 when CO is turned
Rev.3.5
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