
7
Data
De
vice
Cor
por
ation
www
.d
dc-web.com
PW
-8X010P6/8X030P6/8X075P6
D-02/03-0
TABLE 3. SPECIFICATIONS FOR CURRENT SENSE FEEDBACK PW-84XXX TYPES (Tc = +25°C, VCC = VDD = 5.0V UNLESS OTHERWISE SPECIFIED)
PARAMETER
SYMBOL
TEST CONDITION
UNITS
VIRSENSE Gain *
VIRSENSE Gain Error
VIRSENSE Gain Drift
VIRSENSE Offset *
VIRSENSE Offset Drift *
VIRSENSE Output Resistance
VIRSENSE Output Current
VIRSENSE_ABS Output Resistance
VIRSENSE_ABS Output Current
VIRSENSE_ABS Gain *
Error_ABSVAL *
VIRSENSE_ABS Gain Drift
VIRSENSE_ABS Offset *
VIRSENSE_ABS Offset Drift
Delay Time
Bandwidth
Linear Range
OC_FAULT Trip Level
Trip Delay Time
Reference Voltage Input Current
Reference Voltage Input
Reference Voltage Input Capacitance
GVOUT
EVOUT
TCGVOUT
VOS
TCVOS
ROUT
IVOUT
RABS
IABS
GVABS
EVABS
ABSGdrift
VOSABS
TCVOSABS
TDELAY (FIGURE 3A)
FBW (FIGURE 3B)
IRANGE
IOC
tIOC (FIGURE 3C)
IVREF
VREF
CVREF
VREF = 5.0V
-55 to +100°C
-55 to +100°C (10k pull up to VDD)
-55 to +100°C
mV/A
%
ppm/°C
mV
V/°C
mA
mA
mV/A
mV
ppm/°C
mV
V/°C
S
kHz
A
S
mA
Vdc
F
MIN
TYP
MAX
MIN
TYP
MAX
MIN
TYP
MAX
-5
-330
-31
-115
1
-116
-131
-90
20
10.4
4
218.3
20
0.2
3
0.3
3
436.5
30
±330
9
30
9.1
11.6
3
0.26
0.1
5
330
31
115
116
131
110
20
12.7
6
1
VDD
-5
-330
-31
-115
1
-116
-131
-90
20
33.8
4
67.46
20
0.2
3
0.3
3
134.9
30
±330
9
30
37.6
3
0.26
0.1
5
330
31
115
116
131
110
20
41.2
6
1
VDD
-5
-330
-31
-115
1
-116
-131
-90
20
115
4
19.84
20
0.2
3
0.3
3
59.52
30
±330
9
30
100
128
3
0.26
0.1
5
330
31
115
116
131
110
20
140
6
1
VDD
OC_FAULT (-55 TO +100°C)
High Level Output Current
Low Level Output Current
IOH
IOL
VOH=VDD
VOL=0.8V
A
mA
4
0.2
15
4
0.2
15
4
0.2
15
* Note: These parameter values are proportional to VREF. Values shown are at VREF = 5V; when different VREF values are used, these values should be scaled accordingly. For example
when operating at VREF = 4V, multiply each of the asterisk values by 0.8.
The VIRSENSE_ABS output is intended for use in gross overcurrent detection. For accurate current measurements VIRSENSE should be used.
The equation below shows how the specifications are used to compute overall error in VIRSENSE.(
T is the change in ambient temperature from 25°C).
PW-84010P6
PW-84030P6
PW-84075P6
VIRSENSE =
{VIRSENSE.GAIN (
) (1 + VIRSENSE.GAIN.ERROR) (1 + VIRSENSE.GAIN.DRIFT
T)
} IRSENSE + VIRSENSE.OFFSET (
) + VIRSENSE.OFFSET.DRIFT (
)
T + (
)
VREF
5V
VREF
5V
VREF
5V
VREF
2
VIRSENSE.ABS =
|{Error_ABSVAL (
) + 2 (VIRSENSE -
)
}|
VREF
5V
VREF
2
The equation below shows how to compare overall error in VIRSENSE.ABS.VIRSENSE.ABS is an output derived from VIRSENSE. The VIRSENSE error is composed of all VIRSENSE errors with the
addition of the Error_ABSVAL.
IRESENSE
OC_FAULT
Ioc
TIOC
0A
VDD
0V
0
5
10
15
20
25
30
35
40
45
50
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
VIRSENSE
VIRSENSE_ABS
IRSENSE
VIRSENSE Step Response
time (s)
Volts
or
%Irange
(Normalized
to Irange)
TDELAY
50% VIRSENSE_ABS
50% VIRSENSE
50% IRSENSE (normalized)
(VREF = 5.0 V)
1
10
100
1
10
100
VIRSENSE Bandwidth
frequency of I_RSENSE (kHz)
VIRSENSE
Gain
bw
f
-3dB
FIGURE 3C. OC FAULT TRIP RESPONSE TIME
FIGURE 3A. VIRSENSE STEP RESPONSE
FIGURE 3B. VIRSENSE BANDWIDTH