V
參數(shù)資料
型號: LT6109IMS-1#TRPBF
廠商: Linear Technology
文件頁數(shù): 16/28頁
文件大小: 0K
描述: IC AMP CURRENT SENSE 10MSOP
標(biāo)準(zhǔn)包裝: 2,500
類型: 放大器,比較器,參考
應(yīng)用: 電流感測,電源管理
安裝類型: 表面貼裝
封裝/外殼: 10-TFSOP,10-MSOP(0.118",3.00mm 寬)
供應(yīng)商設(shè)備封裝: 10-MSOP
包裝: 帶卷 (TR)
LT6109-1/LT6109-2
23
610912fa
TYPICAL APPLICATIONS
MCU Interfacing with Hardware Interupts
SENSEHI SENSELO
OUTA
0.1
V+
100
LT6109-1
V
TO LOAD
VOUT
ADC IN
2k
6.65k
INC2
1.33k
INC1
V+
EN/RST
OUTC1
8
1
7
6
5
OUTC2
10
9
10k
2
5V
4
3
RESET
6109 TA03
10k
5V
VOUT/ADC IN
AtMega1280
PB0
PB1
PCINT2
PCINT3
ADC2
PB5
5
6
7
2
3
1
UNDERCURRENT ROUTINE
RESET COMPARATORS
MCU INTERUPT
OUTC2 GOES LOW
5V
0V
610912 TA03b
Example:
The comparators are set to have a 50mA undercurrent
threshold and a 300mA overcurrent threshold. The MCU
willreceivethecomparatoroutputsashardwareinterrupts
and immediately run an appropriate fault routine.
Simplified DC Motor Torque Control
The figure shows a simplified DC motor control circuit.
The circuit controls motor current, which is proportional
to motor torque; the LT6109 is used to provide current
feedback to a difference amplifier that controls the current
in the motor. The LTC6992 is used to convert the output
of the difference amp to the motors PWM control signal.
SENSEHI SENSELO
OUTA
LT6109
V
5.62k
100k
2
3
7 LTC6246
1F
4
6
1
3
6
IRF640
5V
1N5818
0.1
VMOTOR
5
4
2
0.47F
VOUT
CURRENT SET POINT (0V TO 5V)
3.4k
1k
INC2
1M
610912 TA04
1k
78.7k
100k
280k
INC1
V+
EN/RST
OUTC1
OUTC2
RESET
100F
+
LTC6992-1
V+
GND
5V
BRUSHED
DC MOTOR
(0A TO 5A)
MABUCHI
RS-540SH
MOD
SET
OUT
DIV
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