參數(shù)資料
型號(hào): 5962-86806022A
廠商: TEXAS INSTRUMENTS INC
元件分類: 穩(wěn)壓器
英文描述: 0.5 A SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, CQCC20
封裝: CERAMIC, LCC-20
文件頁(yè)數(shù): 39/45頁(yè)
文件大?。?/td> 859K
代理商: 5962-86806022A
PRODUCT SUPPORT: APPLICATIONS
UC1847, Current Mode PWM Controller
DEVICE STATUS: ACTIVE
PARAMETER NAME
UC1847
Shutdown
Yes
Output Type
Dual Alternating, Totem Pole Dual Alternating, Totem Pole Dual Alternating, Totem Pole
Output Current (mA)
500
Frequency (max) (kHz)
500
Pulse - by - Pulse Isense
Yes
Reference Voltage (V)
5.1
Vref tol (%)
1
Duty Cycle (max) (%)
50
Operating Supply Current (mA)
17
Operating Supply (max) (V)
40
Operating Supply (min) (V)
7
PWM Outputs (#)
2
Error Amplifier GBW (mHz)
1
Pin Count
16
Light Load Efficiency Features
No
Cycle by Cycle Current Limiting
Yes
Advanced Fault Response
Yes
Secondary Side Control Features
No
Secondary Side Post Regulator
No
Synchronous Rectification Features No
No
UVLO Thresholds On/Off (V)
7.7/6.95
FEATURES
Automatic Feed Forward Compensation
q
Programmable Pulse-by-Pulse Current Limiting
q
Automatic Symmetry Correction in Push-pull Configuration
q
Enhanced Load Response Characteristics
q
Parallel Operation Capability for Modular Power Systems
q
Differential Current Sense Amplifier with Wide Common Mode Range
q
Double Pulse Suppression
q
500mA (Peak) Totem-pole Outputs
q
±1% Bandgap Reference
q
Under-voltage Lockout
q
Soft Start Capability
q
Shutdown Terminal
q
500kHZ Operation
q
DESCRIPTION
The UC1846/7 family of control ICs provides all of the necessary features to implement fixed frequency, current mode
Product Folder:UC1847, Current Mode PWM Controller
file:///J|/imaging/BITTING/mail_pdf/cpl_images/uc1847.html (1 of 2) [8/6/2001 10:02:00 AM]
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