Intersil ISL28133ISENSEV1Z, Руководство пользователя

Страница: 3 / 6

3
AN1480.2
July 18, 2011
FIGURE 2. CURRENT SENSE FOR HIGH-SIDE BI-DIRECTIONAL RE-CHARGEABLE BATTERY SUPPLY
EXT
REFERENCE
V
S
/2
REFERENCE
V
REF
JUMPER
R
SENSE
I-SENSE+
GND
V
REF
V
S
1.65V TO +5.5V
I-SENSE-
CURRENT
FLOW
CHARGING
CURRENT
CONNECT TO
EXTERNAL
POWER
CONNECT TO
BATTERY
POWER
I
SENSE
OUT
+
-
V
REF
= +2.5V
V
OUT
= +2.5V ±2.5V
FOR
I
SENSE
= 0A ±0.25A
LOAD
FIGURE 3. CURRENT SENSE FOR LOW SIDE UNI-DIRECTIONAL MEASUREMENT
EXT
REFERENCE
V
S
/2
REFERENCE
JUMPER
R
SENSE
I-SENSE+
GND
V
REF
V
S
1.65V TO +5.5V
I-SENSE-
CURRENT
FLOW
EXTERNAL
POWER
CONNECT TO
BATTERY
POWER
I
SENSE
OUT
V
REF
= 0V
V
OUT
= 0V TO 5V
FOR
I
SENSE
= 0A 0.5A
LOAD
1.65V TO +5.5V
0V
TO
+5.5V
Application Note 1480