Datasheet

IA
CurrentCopy
OPA
R
GAIN
V =
OUT ()
TransferFunction:
+
R
GAIN
2
V
IN
R
SET
V V-
IN REF
R
OS
RG
1
RG
2
I
COPY
C
C
I
DRV
I
IA
IA
IN+
IA
IN-
Load
DRV
IA
OUT
V
IN
SET
I
MON
V-
DGND
V+XTR300
Digital
Control
OD
M2
M1
H
L
L
Error
Flags
EF
CM
EF
LD
EF
OT
InputSignal
V =0Vto4.0V
IN
V = 4.0V
REF
R
SET
GND1
DV
GND
GND2
R
OS
R
IMON
1kW
GND3
IA
CurrentCopy
OPA
RG
1
RG
2
I
COPY
C
C
I
DRV
I
IA
IA
IN+
IA
IN-
DRV
IA
OUT
V
IN
SET
I
MON
V-
DGND
V+XTR300
Digital
Control
OD
M2
H
L
H
M1
Error
Flags
EF
CM
I
OUT
EF
LD
EF
OT
InputSignal
V =0Vto4.0V
IN
V = 4.0V
REF
R
SET
GND1 GND2
R
OS
I =10
OUT
TransferFunction:
+
V
IN
R
SET
V V-
IN REF
R
OS
( (
XTR300
SBOS336C –JUNE 2005– REVISED JUNE 2011 www.ti.com
FUNCTIONAL BLOCK DIAGRAMS
Figure 2. Standard Circuit for Voltage Output Mode
Figure 3. Standard Circuit for Current Output Mode
8 Copyright © 2005–2011, Texas Instruments Incorporated