LTC4011CFE Linear Technology, LTC4011CFE Datasheet - Page 20

• Manufacturer Part Number: LTC4011CFE
• Description: IC BATT CHARGER HIEFF 20TSSOP
• Manufacturer: Linear Technology

Specifications of LTC4011CFE

• Function: Charge Management
• Battery Type: Nickel Cadmium (NiCd), Nickel Metal-Hydride (NiMH)
• Voltage - Supply: 4.5 V ~ 34 V
• Operating Temperature: 0°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 20-TSSOP (0.173", 4.40mm Width) Exposed Pad
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

LTC4011
applicaTions inForMaTion
While the LTC4011 is a complete, standalone solution,
Figure 9 shows that it can also be interfaced to a host
microprocessor. The host MCU can control the charger
directly with an open-drain I/O port connected to the V
pin, if that port is low leakage and can tolerate at least
0
ADAPTER
FROM
12V
ADAPTER
D1
FROM
24V
D2
PAUSE
FROM
MCU
D3
D4
Figure 8. Full-Featured 2A LTC4011 Application
Figure 9. LTC4011 with MCU Interface
0.1µF
0.1µF
INFET
FAULT
CHRG
TOC
READY
INFET
FAULT
CHRG
TOC
READY
TEMP
2V. The charger state is monitored on the four LTC4011
status outputs. Charging of NiMH batteries is selected in
this example. However, NiCd (CHEM → V
could be chosen as well.
6.8µH
10µF
10µF
22µH
NiMH PACK
WITH 10k NTC
(1Ahr)
10µF
RT
) parameters
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