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參數資料
型號: TS3842B
廠商: Electronic Theatre Controls, Inc.
英文描述: High Performance Current Mode Controller
中文描述: 高性能電流模式控制器
文件頁數: 1/20頁
文件大小: 521K
代理商: TS3842B
Block Diagram
Ordering Information
The TS3842B and TS3843B series are high performance fixed frequency current mode controllers.
This is specifically designed for Off-Line and DC-to-DC converter applications offering the designer a
cost effective solution with minimal external components. This integrated circuits feature a trimmed
oscillator for precise duty cycle control, a temperature compensated reference, high gain error
amplifier, current sensing comparator, and a high current totem pole output ideally suited for driving
a power MOSFET.
Also included are protective features consisting of input and reference undervoltage lockouts each
with hysteresis, cycle-by-cycle current limiting, programmable output deadtime, and a latch for
single pulse metering.
This device is available in 8-pin dual-in-line plastic packages as well as the 8-pin plastic surface
mount (SOP-8). The SOP-8 package has separate power and ground pins for the totem pole output
stage.
The TS3842B has UVLO thresholds of 16V (on) and 10V (off), ideally suited for off-line converters.
Features
Trimmed Oscillator Discharge Current for
Precise Duty Cycle Control
Current Mode Operation to 500KHz
Automatic Feed Forward Compensation
Latching PWM for Cycle-By-Cycle Current
Limiting
General Description
TS3842B/3843B
High Performance Current Mode Controller
Internally Trimmed Reference with Undervoltage
Lockout
High Current Totem Pole Output
Undervoltage Lockout with Hystersis
Low Start-Up and Operating Current
SOP-8
DIP-8
5.0V
Reference
LPWM
V
UnLockout
Oscillator
Error
Amplifier
7(12)
V
C
7(11)
Output
6(10)
Power
Ground
5(8)
Current
Sense
Input
3(5)
V
ref
8(14)
4(7)
2(3)
1(1)
R
T
/C
T
Voltage
FeeInput
R
R
+
-
ref
UndeV
Lockout
CompeOutput
V
CC
The document contains information on a new product.Specifications and
information herein are subject to change without notice.
Designed for Off-Line and DC-to-DC
converter applications.
TS3842/3843BCD
TS3842/3843BCS
DIP-8
SOP-8
-20 to +85
DEVICE
(Ambient)
PACKAGE
OPERATING TEMPERATURE
相關PDF資料
PDF描述
TS3842BCD High Performance Current Mode Controller
TS3842BCS High Performance Current Mode Controller
TS3843B High Performance Current Mode Controller
TS3843BCD High Performance Current Mode Controller
TS3843BCS High Performance Current Mode Controller
相關代理商/技術參數
參數描述
TS3842BCD 制造商:Taiwan Semiconductor 功能描述:IC CURRENT MODE PWM 3842 DIP8
TS3842BCS 制造商:Taiwan Semiconductor 功能描述:CURRENT MODE PWM SMD 3842 SOIC8
TS3843B 制造商:未知廠家 制造商全稱:未知廠家 功能描述:High Performance Current Mode Controller
TS3843BCD 制造商:未知廠家 制造商全稱:未知廠家 功能描述:High Performance Current Mode Controller
TS3843BCS 制造商:未知廠家 制造商全稱:未知廠家 功能描述:High Performance Current Mode Controller
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