LMP8602QMA/NOPB National Semiconductor, LMP8602QMA/NOPB Datasheet - Page 21

• Manufacturer Part Number: LMP8602QMA/NOPB
• Description: IC AMP CURRENT SENSE 60V 8-SOIC
• Manufacturer: National Semiconductor
• Series: LMP®r

Specifications of LMP8602QMA/NOPB

• Amplifier Type: Current Sense
• Number Of Circuits: 1
• Slew Rate: 0.83 V/µs
• Gain Bandwidth Product: 60kHz
• Current - Input Bias: 0.04pA
• Voltage - Input Offset: 150µV
• Current - Supply: 1.1mA
• Current - Output / Channel: 48mA
• Voltage - Supply, Single/dual (±): 3 V ~ 5.5 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC (3.9mm Width)
• No. Of Amplifiers: 1
• Input Bias Current: 20nA
• Input Offset Voltage: 1mV
• Bandwidth: 60kHz
• Cmrr: 105dB
• Supply Voltage Range: 3V To 5.5V
• Supply Current: 1.5mA
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Output Type: -
• -3db Bandwidth: -
• Other names: LMP8602QMA

BATTERY CURRENT MONITOR APPLICATION
This application example shows how the LMP8602/
LMP8603 can be used to monitor the current flowing in and
out a battery pack. The fact that the LMP8602/LMP8603 can
measure small voltages at a high offset voltage outside the
parts own supply range makes this part a very good choice
FIGURE 12. Battery Current Monitor Application
21
for such applications. If the load current of the battery is higher
then the charging current, the output voltage of the
LMP8602/LMP8603 will be above the “half offset voltage” for
a net current flowing out of the battery. When the charging
current is higher then the load current the output will be below
this “half offset voltage”.
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