ZN409CE Просмотр технического описания (PDF) - General Electric Company
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ZN409CE Datasheet PDF : 5 Pages
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ZN409CE
ELECTRICAL CHARACTERISTICS
Test conditions (unless otherwise stated):
Tamb = 25°C, VS = 5V
Characteristics
Input threshold (lower)
Input threshold (upper)
Ratio upper/lower threshold
Input resistance
Input current
Regulator voltage
Regulator supply rejection ratio
Min.
1.15
1.4
1.1
20
350
2.1
200
Monostable Linearity
-
Monostable period temperature
-
coefficient
Output Schmitt deadband
±1
Minimum output pulse
2.5
Error pulse for full drive
70
Total deadband
±3.5
PNP drive
40
35
Output saturation voltage
-
Direction bistable output
2
Supply voltage range
3.5
Supply current
4.6
Total external current from regulator
1.3
Peak voltage VC EXT (with respect to 2V
-
regulated voltage)
-
Value
Typ.
1.25
1.5
1.2
27
500
2.2
300
Max.
1.35
1.6
1.3
35
650
2.3
-
3.5
4.0
+0.01
-
±1.5
±3
3.5
4.5
100
130
±5
±6.5
55
70
50
65
300
400
2.8
3.6
5
6.5
6.7
10
-
-
0.7
-
0.5
-
Units
V
V
kΩ
µA
V
%
%/°C
µs
ms
µs
µs
mA
mA
mV
mA
V
mA
mA
V
V
Test conditions
Pin 14
Pin 14
-10°C to +65°C
-10°C to +65°C, 1.3mA load current
VS = 3.5V to 6.5V
dVIN
RSRR = dVOUT
± 45°, Rp = 1.5kΩ, R1 = 12kΩ
Excluding RT, CT. Rp = 1.5kΩ,
R1 = 12kΩ (potentiometer slider set
mid-way)
CE = 0.47µF
CE = 0.47µF, RE = 180kΩ
15ms repetition rate
CE = 0.47µF, RE = 180kΩ
CD = 1000pF
T = 25°C
T = 10°C
IL = 400mA
Quiescent
VS = 3.5V
T = 25°C
T = -10°C
CIRCUIT DESCRIPTION
The ZN409CE incorporates a precision dual voltage
source providing 1.5V for internal use and 2.2V for external
circuit requirements.
The input circuit is a Schmitt trigger allowing servo opera-
tion independent of edge speed, as obtained from the re-
ceiver-decoder.
Output from the Schmitt trigger is fed to the deadband and
monostable circuits. The deadband circuit prvides a
prgrammable area of insensitivity to input pulse in order to
eliminate hunting and overshoot. Dynamic feedback can be
used to reduce the width of the deadband to acceptable levels,
and to maintain correct servo operation.
The monostable circuits provide the inputs to the pulse
comparison circuit which determines direction and amount of
drive required to reach the new position. The output drive is
also controlled by the pulse expansion circuit. This circuit
ensures that a stationary motor will start rotating without
drawing full stall current. This gives much improved battery
life.
2
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