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R5434D402AA overcharge protection IC R5434D Series Li-Ion Li-Polymer Battery Protection PMIC for Secondary Protection
Details: R5434D Series Battery Management 2-Cell to 5-Cell Protection PMIC-Power manager IC
OUTLINES:
The R5434D is an overcharge protection IC for 2 to 5 serial Li-ion/Li-polymer secondary battery. When an overcharge is detected, after the IC internally fixed delay time, the output of COUT becomes "H". After detecting the overcharge, when the cell voltage becomes lower than the overcharge release voltage, the overcharge state is released. By forcing VDD+3.0V or more to the CTLC pin, the test time of protection circuit board can be shortened, and overcharge delay time becomes about 1/30. The output type is CMOS.
Battery Protection Li-Ion/Li-Pol 8-Pin SON PMIC Chip Specification :
| Application | Li-ion or Li-polymer Battery Protection |
| Ricoh Electronics | |
| Battery Management | |
| Part Number | R5434D402AA-TR-FE |
| RoHS: | YES |
| Battery Protection | |
| Li-Ion, Li-Polymer | |
| 4.22 V | |
| 4 V to 25 V | |
| SON-8 | |
| SMD/SMT | |
| R5434D | |
| Reel | |
| Brand: | Ricoh Electronic Devices Company |
| Maximum Operating Temperature: | + 85 C |
| Minimum Operating Temperature: | - 40 C |
| Operating Supply Current: | 3 uA |
| Pd - Power Dissipation: | 480 mW |
| Product Type: | Battery Management |
| 3000/REEL | |
| Subcategory: | PMIC - Power Management ICs |
| Unit Weight: | 0.050459 oz |
| Related products | R5434D401AA R5434D402AA R5434D403AA R5434D404AA R5434D405AA R5434D406AA R5434D407AA |
FEATURES:
• Manufactured with High Voltage Tolerant Process
Absolute Maximum Rating ····························· 30V
• Low Supply Current
Cell Voltage 3.9V, for 5-cell ······························ Typ.
3.0µA
• High-accuracy Detector Threshold
Overcharge Detector ······································ ±25mV
(Ta=25°C)
• Variety of Detector Threshold
Overcharge Detector Threshold (VDET1n
(1)
)··················3.6V - 4.6V (in 5mV step)
Overcharge Release Voltage (VREL1n
(1)) ··············· VDET1n - 0.1V to VDET1n - 0.4V (in 50mV steps)
Overcharge Detector Output Delay····················· Typ.1.5s
Overcharge Released Condition ························ Voltage
Released Type
• 2 to 5 Cells Selectable Protection
• COUT Output (CMOS Output, Active-high) ········· Typ. 3.7V
(“Low” at normal times, “High” at detecting times)
• Overcharge Delay Time Shortening Function with CTLC pin
VDD+3.0V or more······································· 1sec to
about 1/30
2.0V to VDD-2.0V········································· about
4ms.
• Small Package·············································· SON-8
Related Battery Protection Li-Ion/Li-Pol PMIC Chips:
R5434D401AA
R5434D402AA
R5434D403AA
R5434D404AA
R5434D405AA
R5434D406AA
R5434D407AA
Images:
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