NCV7520
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7
ELECTRICAL CHARACTERISTICS (continued)
(4.75 V ≤ V
CCX
≤ 5.25 V, V
DD
= V
CCX
, 4.5 V ≤ V
LOAD
≤ 36 V, RSTB = V
CCX
, ENB = 0, −40°C ≤ T
J
≤ 150°C, unless otherwise specified.)
(Note 7)
Characteristic UnitMaxTypMinConditionsSymbol
FAULT DETECTION − GATX ON
FLTREF Input Current
I
FLTREF
0 V ≤ V
FLTREF
≤ 2.75 V −1.0 − 1.0
mA
FLTREF Input Linear Range V
REFLIN
(Note 8) 0.35 − 2.75 V
FLTREF Op−amp V
CC1
PSRR PSRR (Note 8) 30 − − dB
DRN
X
Shorted Load Threshold
V
FLTREF
= 0.35 V
V
25
Register R2.C[11:9] = 000 (DEFAULT) 20 25 30
%
V
FLTREF
V
40
Register R2.C[11:9] = 001 35 40 45
V
50
Register R2.C[11:9] = 010 45 50 55
V
60
Register R2.C[11:9] = 011 55 60 65
V
70
Register R2.C[11:9] = 100 65 70 75
V
80
Register R2.C[11:9] = 101 75 80 85
V
90
Register R2.C[11:9] = 110 85 90 95
V
100
Register R2.C[11:9] = 111 95 100 105
DRN
X
Input Leakage Current ID
LKG
0 V ≤ V
CC1
= V
CC2
= V
DD
≤ 5.25 V,
RSTB = 0 V, V
LOAD
= V
DRNX
= 36 V
T
A
≤ 25°C
−5.0
−1.0
−
−
5.0
1.0
mA
DRN
X
Clamp Voltage V
CL
I
DRNX
= I
CL(MAX)
=10 mA; Transient
(≤2 ms, ≤1% Duty)
60 − 78 V
FAULT DETECTION − GATX OFF (7.5 V ≤ V
LOAD
≤ 36 V, Register R3.D[5:0] = 1)
DRN
X
Diagnostic Current
− Proportional to V
LOAD
I
SG
Short to GND Detection, V
DRNX
= 43%V
LOAD
−81 −60 −39
mA / V
I
OL
Open Load Detection, V
DRNX
= 61%V
LOAD
2.73 4.20 5.67
mA / V
DRN
X
Fault Threshold Voltage
V
SG
Short to GND Detection 39.56 43 46.44 %V
LOAD
V
OL
Open Load Detection 56.12 61 65.88 %V
LOAD
DRN
X
Off State Bias Voltage V
CTR
46.92 51 55.08 %V
LOAD
VLOAD Undervoltage Threshold V
LDUV
VLOAD Decreasing 4.1 6.3 7.5 V
FAULT TIMERS
Channel Fault Blanking Timers
(Figure 7)
t
BL(ON)
V
DRNX
= V
LOAD
; IN
X
rising to FLTB falling
Register R2.C[4] = 0, R2.C[6:5] = 00
4.6 6.0 7.4
ms
Register R2.C[4] = 0, R2.C[6:5] = 01 9.2 12.0 14.8
Register R2.C[4] = 0, R2.C[6:5] = 10 (DEFAULT) 20.0 26.0 32.0
Register R2.C[4] = 0, R2.C[6:5] = 11 40.0 52.0 64.0
V
DRNX
= V
LOAD
; IN
X
rising to FLTB falling
Register R2.C[4] = 1, R2.C[6:5] = 00
13.0 16.9 20.8
ms
Register R2.C[4] = 1, R2.C[6:5] = 01 25.0 32.5 39.9
Register R2.C[4] = 1, R2.C[6:5] = 10 60.0 77.9 95.8
Register R2.C[4] = 1, R2.C[6:5] = 11 98.0 127.3 156.5
t
BL(OFF)
V
DRNX
= 0V; IN
X
falling to FLTB falling
Register R2.C[8:7] = 00
42.4 55.0 67.6
ms
Register R2.C[8:7] = 01 61.6 80.0 98.4
Register R2.C[8:7] = 10 (DEFAULT) 123.2 160.0 196.8
Register R2.C[8:7] = 11 246.4 320.0 393.6
Channel Fault Filter Timer t
FF(ON)
t
FF(OFF)
(Figure 7) 2.0
42.4
3.0
55.0
4.0
67.6
ms
Product parametric performance is indicated in the Electrical Characteristics for the listed test conditions, unless otherwise noted. Product
performance may not be indicated by the Electrical Characteristics if operated under different conditions.
7. Min/Max values are valid for the temperature range −40°C ≤ T
J
≤ 150°C unless noted otherwise. Min/Max values are guaranteed by test,
design or statistical correlation.
8. Guaranteed by design.