isl22444 Intersil Corporation, isl22444 Datasheet - Page 17

• Manufacturer Part Number: isl22444
• Description: Quad Digitally Controlled Potentiometer Xdcp? , Low Noise, Low Power, Spi? Bus, 256 Taps
• Manufacturer: Intersil Corporation

PROGRAMMABLE OFFSET ±25mV
DCP0 (1/4 ISL22444U)
RW0
DC/DC CONVERTER
50k
OUTPUT
17
FIGURE 22. CURRENT SENSING WITH GAIN AND OFFSET CONTROL
1.2V
RH0
RL0
+5V
10k
-5V
SPI BUS
R
50k, 1%
R
50k, 1%
R
1k, 1%
1
3
2
+5V
0.005Ω
0.1µF
-5V
PROGRAMMABLE GAIN 90 TO 110
16
5
6
15
14
4
7
17
ISL22444UFV20Z
GND
V-
Vcc
SCK
SDO
SDI
CS
NC
10k
DCP1 (1/4 ISL22444U)
ISL22444
RW1
6
5
3
4
RW0
RW1
RW2
RW3
RH0
RH1
RH2
RH3
RL0
RL1
RL2
RL3
IN+
IN-
FB+
FB-
50k
16
+5V
8
V+
V-
PROCESSOR LOAD
10A, MAX
V
13
12
11
10
1
2
3
18
19
20
9
8
OUT
EN
RH1
RL1
1/2 ISL28272
7
2
DCP1
DCP3
DCP0
DCP2
R
150k, 1%
R
1.37k, 1%
R
309, 1%
4
6
5
V
OUT
= 0V to + 5V to ADC
May 24, 2007
FN6426.0