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參數(shù)資料
| 型號： | L4620 |
| 廠商： | STMICROELECTRONICS |
| 元件分類： | 消費家電 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PDIP8 |
| 封裝： | MINI, DIP-8 |
| 文件頁數(shù)： | 4/9頁 |
| 文件大?。?/td> | 185K |
| 代理商： | L4620 |
1
*) This is a squarewave signal. The frequency is given by : f =
fosc.
32
1
**) The output squarewave signal frequency is given by f =
fosc.
512
The duty cycle depends on the state of the pin 8 and can be or 1 : 2 or 1 : 64, i.e. refer to figure 2, T = 320 ms, t = 160 or 5 ms when
the oscillator frequency fosc = 1.6 KHz.
ELECTRICAL CHARACTERISTICS (Tamb = 25
°C, unless otherwise specified. Refer to block diagram
for external component values)
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
VZ
Internal Zener Voltage (pin 5)
IS = 24 mA
4
4.5
5
V
IS
Supply Current (pin 5)
VS = 3.8 V
6.5
11
mA
fosc
Oscillator Frequency (pin 1)
Rosc = 180 k
, Cosc = 4.7 nF
1.45
1.6
1.75
kHz
V7, V8
Programming Pins Input
Voltage (pin 7, 8)
Low State
0.3
V
High state
2
V
I7, I8
Programming Pins Input Current
(pin 7, 8)
V7 = V8 = 0 V
– 1
A
V7 = V8 = VZ
150
A
V2
Sensor Drive Output Voltage, (*) V2 = Low,
I2 = 1 mA
0.4
V
V2 = High,
I2 = 1 mA
VZ–1
VZ–0.4
V
I2
Sensor Driver Output Current
– 1
1
mA
VSENSH/V2
Sensor Input High Threshold
Voltage Versus V2 (pin 3)
V2 = High
Vpin 3 < VSENSL
0.33
0.4
0.47
Vsens
_____
V2
Sensor Input Low Threshold
Voltage Versus V2 (pin 3)
V2 = High
Vpin 3 > VSENSH
0.15
0.22
0.29
Vclamp3L
Sensor Input Clamping Voltage
(pin 3)
– 100
A < Isens < 100 A
V2 = Low
– 0.1
0.1
V
Vclamp3H
V2 = High
I3 = – 100
A
– 0.8
– 0.6
– 0.4
V
I3 = + 100
A
VZ
VZ +0.8
V
Isens
Sensor Input Bias Current (pin
3)
Vsens = High
1.2
A
Td
Delay Time
fosc = 1.6 kHz
V7 = Low
10.24
sec
V7 = High
20.48
sec
Vout(sat)
Output Stage Saturation
Voltage (pin 6) (**)
Iout = 200 mA
1.3
V
Vout(clamp)
Output Stage Overvoltage
Protection (pin 6)
Iout = 70 mA
19
21
23
V
ILEAK
Leak Current (pin 6)
P6 = 15V; P7 = P8 = GND
100
A
L4620
4/9
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