LT®1513 is a 500KHz current mode switching regulator specially configured to create a constant- or programmable-current/constant-voltage battery charger. In addition to the usual voltage feedback node, it has a current sense feedback circuit for accurately controlling output current of a flyback or SEPIC (single-ended primary inductance converter) topology charger. In addition, these topologies allow charging even when the input voltage is lower than the battery voltage. This can also drive a CCFL Royer converter with high efficiency in floating or grounded mode. Accuracy of 1% in constant-voltage mode is perfect for lithium battery applications. Charging current can be easily programmed for all battery types. Typical applications are charging of NiCd, NiMH, lead-acid or lithium rechargeable cells, precision current limited power supply, constant-voltage/constant-current supply, transducer excitation, universal input CCFL driver.
- Charger input voltage may be higher, equal to or lower than battery voltage
- Charges any number of cells up to 20V, battery can be directly grounded
- 1% voltage accuracy for rechargeable lithium batteries
- 100mV current sense voltage for high efficiency
- 500KHz switching frequency minimizes inductor size
- Charging current easily programmable or shut down
- FB input current is 300nA typical (VFB=VREF, VIN=5V, VC=0.6V, VFB=VREF, IFB=0V)
- IFB input current is -200 to 0nA (VIFB=VIREF, VIN=5V, VC=0.6V, VFB=VREF, IFB=0V)
- 7-lead plastic DD package
Product details
Battery Type:
Lead Acid, Li-Ion, NiCd, NiMH
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Input Voltage:
25V
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Battery Charge Voltage:
20V
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Charge Current:
2A
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IC Case / Package:
TO-263 (D2PAK)
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No. of Pins:
7Pins
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No. of Cells:
1Cells
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Operating Temperature Min:
0°C
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Operating Temperature Max:
70°C
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IC Mounting:
Surface Mount
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Product Range:
-
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MSL:
MSL 1 - Unlimited
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Other details
Brand |
ANALOG DEVICES |
Part Number |
LT1513CR#PBF |
Quantity |
Each |
Technical Data Sheet EN |
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