RP
for A1140, A1142
12
-
17    mA
Reverse Supply Current
I
RCC
V
RCC
= 18 V
    1.6    mA
Supply Zener Clamp Voltage  V
ZSUPPLY
I
CC
= I
CC(L)(max)
+ 3 mA; T
A
= 25癈
28
40
V
Supply Zener Clamp Current  I
ZSUPPLY
V
ZSUPPLY
= 28 V
I
CC(L)(max)
+ 3 mA
mA
Output Slew Rate
3
di/dt
Capacitance of the oscilloscope performing the
measurement = 20 pF
36
    mA/約
Chopping Frequency
f
C
200
kHz
Power-On Time
3
t
on
C
BYPASS
= 0.01 糉
25
約
Power-On State
5,6
POS   t < t
on
; V
CC
slew rate > 25 mV/約
    HIGH    
1
V
CC
represents the generated voltage between the VCC pin and the GND pin.
2
Relative values of B use the algebraic convention, where positive values indicate south magnetic polarity, and negative values indicate north magnetic
polarity; therefore greater B values indicate a stronger south polarity field (or a weaker north polarity field, if present).
3
Measured without bypass capacitor between VCC and GND. Use of a bypass capacitor results in slower current change.
3
Measured with and without bypass capacitor of 0.01 糉. Adding a larger bypass capacitor causes longer Power-On Time.
5
POS is defined as true only with a V
CC
slew rate of 25 mV / 約 or greater. Operation with a V
CC
slew rate less than 25 mV / 約 can permanently harm
device performance.
6
POS is undefined for t > t
on
or B
RP
< B < B
OP
.
MAGNETIC CHARACTERISTICS over the operating voltage and temperature ranges, unless otherwise specified
Characteristic
Symbol
Test Conditions
Min.   Typ.*   Max.   Units
Operate Point
B
OP
A1140, A1142 I
CC
= I
CC(L)
50
80    110    G
A1143
I
CC
= I
CC(H)
Release Point
B
RP
A1140, A1142 I
CC
= I
CC(H)
45
65    105    G
A1143
I
CC
= I
CC(L)
Hysteresis
B
HYS
B
HYS
= B
OP
B
RP
5
15
30
G
*Typical data are for initial design estimations only, and assume optimum manufacturing and application conditions, such as T
A
= 25癈 and V
CC
= 12 V.
Performance may vary for individual units, within the specified maximum and minimum limits.