Datasheet MAX1873REEE+ - Maxim CONTROLLER, CHARGER, 1873, QSOP16 — Ficha de datos

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Manufacturer: Maxim

Description: CONTROLLER, CHARGER, 1873, QSOP16

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Docket:
19-2099; Rev 0; 7/01
ILABLE N KIT AVA EVALUATIO
Simple Current-Limited Switch-Mode Li+ Charger Controller
General Description
The low-cost MAX1873R/S/T provides all functions needed to simply and efficiently charge 2-, 3-, or 4series lithium-ion cells at up to 4A or more.

It provides a regulated charging current and voltage with less than ±0.75% total voltage error at the battery terminals. An external P-channel MOSFET operates in a step-down DC-DC configuration to efficiently charge batteries in low-cost designs. The MAX1873R/S/T regulates the battery voltage and charging current using two control loops that work together to transition smoothly between voltage and current regulation. An additional control loop limits current drawn from the input source so that AC adapter size and cost can be minimized. An analog voltage output proportional to charging current is also supplied so that an ADC or microcontroller can monitor charging current. The MAX1873 may also be used as an efficient

Specifications:

• Base Number: 1873
• Battery Charge Voltage: 8.4 V
• Battery IC Case Style: QSOP
• Battery Management Function: Charger, Status Monitor
• Battery Type: Lithium / NiCd / NiMH
• Charge Current Max: 4 A
• IC Generic Number: 1873
• Input Voltage Max: 28 V
• Input Voltage: 28 V
• Mounting Type: SMD
• Number of Pins: 16
• Number of Series Cells: 4
• Operating Temperature Range: -40°C to +85°C
• Output Voltage Max: 17.6 V
• Package / Case: QSOP
• SVHC: No SVHC (18-Jun-2010)
• Supply Voltage Range: 6 V to 28 V

RoHS: Yes

Accessories:

• Electrolube - HTS35SL
• Fischer Elektronik - ICK SMD A 5 SA
• Roth Elektronik - RE931-02
• STANNOL - 574601