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參數資料
| 型號： | CS5126XDR8 |
| 廠商： | ZF Electronics Corporation |
| 英文描述： | High Performance, Integrated Current Mode PWM Controllers |
| 中文描述： | 高性能，集成電流模式PWM控制器 |
| 文件頁數： | 1/10頁 |
| 文件大小： | 172K |
| 代理商： | CS5126XDR8 |
V
CC
BIAS
UVLO
CS5124
SS
Gnd
GATE
IS
V
FB
R8
Q2
R5
C2
1.5
μ
F,
100V
C1
0.1
μ
F,
100V
R2
10
μ
H
36-75VIN
L1
R1
Q1
T1
D1
MBRD360CT
R3
47
R6
1k
C3
μ
F
C6
.01
μ
F
R7
C5
47
μ
F,
10V
ISOLATED
5VOUT
ENABLE
48VRTN
D4
R4
10
BAS16LT1
μ
F,
C4
C8
C7
0.1
μ
F
TPS5908
U2
R9
1C9
CTX15-14514
Features
I
Line UVLO Monitoring
I
Low Current Sense
Voltage for Resistive
Current Sensing
I
External Synchronization
to Higher or Lower
Frequency Oscillator
(CS5126 Only)
I
Bias for Start up Circuitry
(CS5124 Only)
I
Thermal Shutdown
I
Sleep On/Off Pin
I
Soft Start Timer
I
Leading Edge Blanking
I
Direct Optocoupler
Interface
I
90ns Propagation Delay
I
35ns Driver Rise and Fall
Times
I
Sleep Mode
Package Options
C
High Performance, Integrated Current Mode
PWM Controllers
Description
CS5124/6
Applications Diagram
8 Lead SO Narrow
CS5124
1
1
V
CC
BIAS
UVLO
SS
Gnd
GATE
I
SENSE
V
FB
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
Rev. 3/12/99
Gnd
UVLO
1
V
CC
SYNC
SS
GATE
I
SENSE
V
FB
CS5126
48V to 5V, 1A flyback converter using the CS5124
The CS5124/6 is a fixed frequency
current mode controller designed
specifically for DC-DC converters
found in the telecommunications
industry. The CS5124/6 integrates
many commonly required current
mode power supply features and
allows the power supply designer to
realize substantial cost and board
space savings. The product matrix is
as follows:
CS5124: 400kHz w/V
BIAS
Pin,
195mV first current sense threshold
CS5126: 200kHz w/SYNC Pin,
335mV first current sense threshold
The CS5124/6 integrates the follow-
ing features: Internal Oscillator, Slope
Compensation, Sleep On/Off, Under
Voltage Lock Out, Thermal
Shutdown, Soft Start Timer, Low
Voltage Current Sense for Resistive
Sensing, Second Current Threshold
for Pulse by Pulse Over Current
Protection, a Direct Optocoupler
Interface and Leading Edge Current
Blanking.
The CS5124/6 has supply range of
7.7V to 20V and is available in 8 pin
SO narrow package.
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