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參數資料
| 型號： | CS5112EDWF24 |
| 廠商： | ZF Electronics Corporation |
| 英文描述： | 1.4A Switching Regulator with 5V, 100mA Linear Regulator with Watchdog, RESET and ENABLE |
| 中文描述： | 1.4A的開關穩壓器采用5V，100mA的線性穩壓器，帶有看門狗，復位和啟用 |
| 文件頁數： | 1/10頁 |
| 文件大小： | 199K |
| 代理商： | CS5112EDWF24 |
1
Features
I
Linear Regulator
5V ± 2% @ 100mA
I
Switching Regulator
1.4A Peak Internal
Switch
120kHz Maximum
Switching Frequency
5V to 26V Operating
Supply Range
I
Smart Functions
Watchdog
RESET
I
Protection
Overtemperature
Current Limit
ENABLE
Package Options
24 Lead SO Wide
(Internally Fused Leads)
C
1.4A Switching Regulator with 5V, 100mA Linear
Regulator with Watchdog, RESET and ENABLE
Description
1
V
REG
V
LIN
I
BIAS
Gnd
Gnd
Gnd
Gnd
RESET
C
Delay
WDI
C
OSC
V
IN
NC
NC
V
SW
Gnd
Gnd
Gnd
Gnd
V
FB1
V
FB2
SELECT
COMP
ENABLE
CS5112
Over
Temperature
V
IN
Linear
Error Amplifier
1.25V
V
REG
1.4A
V
SW
COMP
V
FB1
V
FB2
SELECT
V
LIN
I
BIAS
C
DELAY
RESET &
Watchdog Timer
Current
Limit
WDI
C
OSC
Base
Drive
RESET
Gnd
Bandgap
Reference
Oscillator
Multiplexer
+
-
COMP
Logic
+
-
+
-
+
-
Switcher Shutdown
Switcher
Error Amplifier
Current Sense Amplifier
ENABLE
Block Diagram
A
Company
¨
Rev. 4/22/99
Cherry Semiconductor Corporation
2000 South County Trail, East Greenwich, RI 02818
Tel: (401)885-3600 Fax: (401)885-5786
Email: info@cherry-semi.com
Web Site: www.cherry-semi.com
The CS5112 is a dual output power sup-
ply integrated circuit. It contains a 5V
±2%, 100mA linear regulator, a watchdog
timer, a linear output voltage monitor to
provide a Power On Reset (POR) and a
1.4A current mode PWM switching reg-
ulator.
The 5V linear regulator is comprised of
an error amplifier, reference, and super-
visory functions. It has low internal sup-
ply current consumption and provides
1.2V (typical) dropout voltage at maxi-
mum load current.
The watchdog timer circuitry monitors
an input signal (WDI) from the micro-
processor. It responds to the falling
edge of this watchdog signal. If a correct
watchdog signal is not received within
the externally programmable time, a
reset signal is issued.
The externally programmable active
reset circuit operates correctly for an out-
put voltage (V
LIN
) as low as 1V. During
power up, or if the output voltage shifts
below the regulation limit,
gles low and remains low for the duration
of the delay after proper output voltage
regulation is restored. Additionally a reset
pulse is issued if the correct watchdog is
not received within the programmed
time. Reset pulses continue until the cor-
rect watchdog signal is received. The
reset pulse width and frequency, as well
as the Power On Reset delay, are set by
one external RC network.
tog-
The current mode PWM switching regu-
lator is comprised of an error amplifier
with selectable feedback inputs, a cur-
rent sense amplifier, an adjustable oscil-
lator, and a 1.4A output power switch
with anti-saturation control. The switch-
ing regulator can be configured in a
variety of topologies.
The CS5112 is load dump capable and
has protection circuitry which includes
current limit on the linear and switcher
outputs, and an overtemperature limiter.
RESET
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相關代理商/技術參數 |
參數描述 |
|---|---|
| CS5112EDWFR24 | 制造商:CHERRY 制造商全稱:CHERRY 功能描述:1.4A Switching Regulator with 5V, 100mA Linear Regulator with Watchdog, RESET and ENABLE |
| CS5112KP12 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Converter IC |
| CS5112KP24 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Converter IC |
| CS5112KP7 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Converter IC |
| CS5112TC12 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Converter IC |
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