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參數資料
| 型號： | ULQ2436M |
| 廠商： | Allegro MicroSystems, Inc. |
| 英文描述： | Flash - NOR IC; Memory Type:Flash; Access Time, Tacc:100ns; Page/Burst Read Access:25ns; Sector Type:Uniform; Package/Case:56-TSOP; Memory Configuration:128K x 16; Memory Size:256MB; NOR Flash Type:Page Mode Access RoHS Compliant: Yes |
| 中文描述： | 的CountDown電源定時器 |
| 文件頁數： | 3/3頁 |
| 文件大?。?/td> | 79K |
| 代理商： | ULQ2436M |
2436
COUNTDOWN POWER TIMER
1 k
+
1
μ
F
1
2
3
4
5
6
7
8
VREG
C
F/F
BATTERY
10 k
16 V
TO
COURTESY
LIGHT
R
T
C
T
CIRCUIT DESCRIPTION
OSC.
An external resistor in the range of
200 k
to 2 M
and an external capacitor
in the range of 0.001
μ
F to 1
μ
F determine
the frequency of the internal oscillator. The
period of oscillation is nominally R
T
C
T
with
the overall output time period (after the
digital countdown) of
t = 4064 R
T
C
T
where t is in seconds. See also MODE
SELECT.
OUTPUT.
The output is an open-collector
of a Darlington-connected transistor. The
output is ON (low) during the timing period.
An external Zener diode is used to protect
the output against inductive-load switching
transients and automotive “l(fā)oad dump”.
TOGGLE.
A push-button, momentary-action
switch at this input toggles the timer from
the OFF to the ON state. The oscillator and
countdown circuitry are started on the rising
edge of the input pulse. Internal de-bounce
circuitry is included.
SUPPLY.
The timer requires a supply current
applied to this pin through a current-limiting
resistor (R
S
). An internal 8 volt Zener diode
shunt regulator provides a stable supply to
the device over wide supply voltage varia-
tions. Capacitor C
S
is used to provide
decoupling.
MODE SELECT.
With MODE SELECT
connected to GROUND, the first activation
will run for the preset time delay. All activa-
tions after the first will time out at half of the
initial preset time. This sequence is reset
each time the supply is interrupted. With
MODE SELECT connected to SUPPLY
(V
REG
), the timer will repeat the preset time
delay each time it is activated.
Dwg. No. ES-013
COURTESY LIGHT TIMER
Allegro MicroSystems, Inc. reserves the right to make, from time to time, such departures from the
detail specifications as may be required to permit improvements in the design of its products.
Components made under military approvals will be in accordance with the approval requirements.
The information included herein is believed to be accurate and reliable. However, Allegro
MicroSystems, Inc. assumes no responsibility for its use; nor for any infringements of patents or other
rights of third parties which may result from its use.
相關PDF資料 |
PDF描述 |
|---|---|
| ULQ2460LW | ELECTRONIC IGNITION TIMING |
| ULQ2470M | Flash - NOR IC; Memory Size:256MB; Memory Configuration:128K x 16; Supply Voltage Max:3.6V; Package/Case:56-TSOP; Leaded Process Compatible:Yes; Memory Type:FLASH; Operating Temp. Max:85 C; Operating Temp. Min:-40 C |
| ULQ2470L | TURBOSWITCH - ULTRA-FAST HIGH VOLTAGE DIODE |
| ULQ2804A | HIGH-VOLTAGE, HIGH-CURRENT DARLINGTON ARRAYS |
| ULQ2803LW | HIGH-VOLTAGE, HIGH-CURRENT DARLINGTON ARRAYS |
相關代理商/技術參數 |
參數描述 |
|---|---|
| ULQ2460A | 制造商:ALLEGRO 制造商全稱:Allegro MicroSystems 功能描述:ELECTRONIC IGNITION TIMING |
| ULQ2460C | 制造商:ALLEGRO 制造商全稱:Allegro MicroSystems 功能描述:ELECTRONIC IGNITION TIMING |
| ULQ2460LW | 制造商:Allegro MicroSystems LLC 功能描述: |
| ULQ2470L | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:BUS DRIVER / RECEIVER |
| ULQ2470M | 制造商:ALLEGRO 制造商全稱:Allegro MicroSystems 功能描述:BUS DRIVER / RECEIVER |
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