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參數(shù)資料
| 型號(hào)： | TK75002 |
| 廠商： | TOKO Inc. |
| 英文描述： | ERROR SIGNAL ISOLATOR |
| 中文描述： | 誤差信號(hào)隔離器 |
| 文件頁(yè)數(shù)： | 1/10頁(yè) |
| 文件大?。?/td> | 77K |
| 代理商： | TK75002 |
January 1999 TOKO, Inc.
Page 1
TK75002
INV
VCC
DRV
GND
S
R
Q
BANDGAP
VLS
UVLO
COMP
CPEAK
4
220 mV
BUFFER
PAM SWITCH
PAM LATCH
TRANSFORMER
VLLEVEL SHIFTER
2.5 V
VCOMP
ERROR AMPLIFIER
1.35 V
+
-
+
-
650 mV
FEATURES
I
Eliminates Opto-coupler from Feedback Loop
I
Replaces TL431 and Eliminates Parasitic Zero
I
Pulse Transformer Driver
I
Same Transformer for Any Output Voltage
I
Peak Current Controlled
I
Automatic Volt-Second Balancing
I
Self-running Oscillator
I
Hi-performance Op-amp & Bandgap Reference
I
Functionally Integrated & Simplified 5-pin Design
APPLICATIONS
I
Power Supplies with Primary-Side Controller
I
Low Isolation-Barrier Capacitance Equipment
I
Instrumentation
I
Industrial Process Control
I
Test Equipment
I
Data Acquisition
BLOCK DIAGRAM
TK75002
DESCRIPTION
The TK75002 monitors the output voltage of a power
supply, generates an error signal, and transmits the error
signal across an isolation barrier using a small pulse
transformer. In conjunction with the pulse transformer, it
replaces the TL431/opto-coupler combination and
eliminates the undesirable zero created in the feedback
loop by that combination. The transformer is driven with
pulse amplitude modulation in a free-running oscillator
configuration. The period of oscillation is proportional to
the inductance of the pulse transformer. The magnitude of
the voltage pulse is internally limited so that the pulse
transformer design need not be changed for various output
voltages.
The TK75002 is available in an 8-pin DIP package.
ORDERING INFORMATION
TAPE/REEL CODE
MG: Magazine
Tape/Reel Code
TK75002D
Temperature Code
EXTENDED TEMP. RANGE
I: -40 TO +85 C
75002
NC
DRV
NC
VCC
GND
NC
COMP
INV
ERROR SIGNAL ISOLATOR
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| TK75002D | ERROR SIGNAL ISOLATOR |
| TK75002DIMG | ERROR SIGNAL ISOLATOR |
| TK75003 | PWM CONTROLLER |
| TK75003D | PWM CONTROLLER |
| TK75003DIMG | PWM CONTROLLER |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TK75002D | 制造商:TOKO 制造商全稱:TOKO, Inc 功能描述:ERROR SIGNAL ISOLATOR |
| TK75002DIMG | 制造商:TOKO 制造商全稱:TOKO, Inc 功能描述:ERROR SIGNAL ISOLATOR |
| TK75002DIMG/75002 | 制造商:TOKO 制造商全稱:TOKO, Inc 功能描述:ERROR SIGNAL ISOLATOR |
| TK75003 | 制造商:TOKO 制造商全稱:TOKO, Inc 功能描述:PWM CONTROLLER |
| TK75003D | 制造商:TOKO 制造商全稱:TOKO, Inc 功能描述:PWM CONTROLLER |
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