參數(shù)資料
型號(hào)： CS2841B
廠商： ZF Electronics Corporation
英文描述： Automotive Current Mode PWM Control Circuit
中文描述： 汽車電流模式PWM控制電路
文件頁(yè)數(shù)： 1/6頁(yè)
文件大?。?/td> 162K
代理商： CS2841B
1
1
COMP
2
3
4
V
FB
Sense
OSC
V
REF
V
CC
V
OUT
Gnd
8
7
6
5
V
CC
Gnd
OSC
V
FB
COMP
Sense
V
REF
V
OUT
Output
Enable
5V
Reference
Internal
Bias
NOR
S
R
PWM
Latch
Current
Sensing
Comparator
Oscillator
1 V
R
2 R
V
C
AmError
+
–
8.0V/7.4V
2.50V
Set/
Reset
Undervoltage
Lock-out Circuit
V
CC
Pwr
Pwr Gnd
I
Optimized for Off-line
Control
Internally Trimmed
Temperature
Compensated Oscillator
Maximum Duty-cycle
Clamp
V
Stabilized before
Output Stage Enabled
Low Start-up Current
Pulse-by-pulse Current
Limiting
Improved Undervoltage
Lockout
Double Pulse Suppression
1% Trimmed Bandgap
Reference
High Current Totem Pole
Output
I
I
I
I
I
I
I
I
I
Package Options
8 Lead PDIP
10
7
14
13
12
8
1
2
3
4
5
6
11
9
COMP
NC
V
FB
NC
Sense
NC
OSC
V
REF
NC
V
CC
V
CC
Pwr
V
OUT
Pwr Gnd
Gnd
14 Lead SO Narrow
C
Automotive Current Mode PWM
Control Circuit
Description
CS2841B
The CS2841B provides all the nec-
essary features to implement off-
line fixed frequency current-mode
control with a minimum number of
external components.
The CS2841B (a variation of the
CS-2843A) is designed specifically
for use in automotive operation.
The low start threshold voltage of
8.0V (typ), and the ability to sur-
vive 40V automotive load dump
transients are important for auto-
motive subsystem designs. The
CS-2841 series has a history of
quality and reliability in automo-
tive applications.
The CS2841B incorporates a preci-
sion temperature-controlled oscil-
lator with an internally trimmed
discharge current to minimize vari-
ations in frequency. Duty-cycles
greater than 50% are also possible.
On board logic ensures that V
REF
is
stabilized before the output stage
is enabled. Ion implant resistors
provide tighter control of under-
voltage lockout.
Block Diagram
Absolute Maximum Ratings
Supply Voltage (Low Impedance Source)...................................................40V
Output Current...............................................................................................±1A
Output Energy (Capacitive Load) .................................................................5μJ
Analog Inputs (V
FB
, Sense) ............................................................-0.3V to 5.5V
Error Amp Output Sink Current...............................................................10mA
Lead Temperature Soldering
Wave Solder (through hole styles only)..........10 sec. max, 260°C peak
Reflow (SMD styles only)...........60 sec. max above 183°C, 230°C peak
Features
Rev. 6/23/99
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
A
Company
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
CS-2841B 制造商:未知廠家 制造商全稱:未知廠家 功能描述:
CS2841B/D 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Automotive Current Mode PWM Control Circuit
CS2841BEBN8 功能描述:電流型 PWM 控制器 1A Current Mode PWM RoHS:否 制造商:Texas Instruments 開關(guān)頻率:27 KHz 上升時(shí)間: 下降時(shí)間: 工作電源電壓:6 V to 15 V 工作電源電流:1.5 mA 輸出端數(shù)量:1 最大工作溫度:+ 105 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TSSOP-14
CS2841BEBN8G 功能描述:電流型 PWM 控制器 1A Current Mode PWM Control Automotive RoHS:否 制造商:Texas Instruments 開關(guān)頻率:27 KHz 上升時(shí)間: 下降時(shí)間: 工作電源電壓:6 V to 15 V 工作電源電流:1.5 mA 輸出端數(shù)量:1 最大工作溫度:+ 105 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TSSOP-14
CS2841BED14 功能描述:電流型 PWM 控制器 1A Current Mode PWM RoHS:否 制造商:Texas Instruments 開關(guān)頻率:27 KHz 上升時(shí)間: 下降時(shí)間: 工作電源電壓:6 V to 15 V 工作電源電流:1.5 mA 輸出端數(shù)量:1 最大工作溫度:+ 105 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TSSOP-14
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