LT1999MPMS8-10#TRPBF Linear Technology, LT1999MPMS8-10#TRPBF Datasheet - Page 21

• Manufacturer Part Number: LT1999MPMS8-10#TRPBF
• Description: SC-Amps/Current Sense, High Voltage, Bidirectional Current Sense Amplifier
• Manufacturer: Linear Technology

Specifications of LT1999MPMS8-10#TRPBF

• Input Bias Current: 137.5µA
• Output Current Per Channel: 26mA
• Input Offset Voltage: 1.5mV
• Bandwidth: 2MHz
• Cmrr: 120dB
• Slew Rate: 3V/µs
• Supply Voltage Range: 4.5V To 5.5V
• Supply Current: 3µA
• Rohs Compliant: Yes
• No. Of Amplifiers: 2

TYPICAL APPLICATIONS
PWM IN
5V
PWM INPUT
DIRECTION
BRAKE INPUT
H-BRIDGE
GND
24V
V
BRIDGE
Figure 10. LT1999 Output Waveforms for the Circuit of Figure 9
Figure 9. Armature Current Monitor for DC Motor Applications
C4
1000μF
OUTA
OUTB
0.025Ω
R
SENSE
V
TIME (20μs/DIV)
+IN
V
OUT
V
V
10μF
+IN
–IN
5V
5V
24V MOTOR
1
2
3
4
V
+
1999 F10
LT1999-10/LT1999-20/
V
V
4k
4k
+
+
2.5V
0.8k
0.8k
LT1999-20
+
–
SHDN
–
+
V
80k
LT1999-50
V
+
+
160k
160k
2μA
1999 F09
8
7
6
5
V
V
V
21
SHDN
OUT
REF
0.1μF
0.1μF
1999fa