KA7500 incorporate single monolithic chip functions required construct

The Datasheet Archive - 100 Million Datasheets from 7500 Manufacturers.

KA7500 incorporate single monolithic chip functions required construct

Datasheet Thumbnail

Top Searches for this datasheet

KA7500
KA7500 incorporate single monolithic chip functions required construction pulse-width-modulation control circuit. Designed primarily power supply control ,these devices offer systems engineer flexibility tailor power supply control circuitry application. A7500 contains error amplifier anon-chip adjustable oscillator dead- time control comparator ,pulse-steering control flip-flop 5-volt, precision regulator output-control circuits. error amplifier
exhibits common-mode voltage range from -0.3 volts volts .The dead time control comparator fixed offset that provides approximately deed time when externally altered. on-chip oscillator bypassed terminating (pin
reference output providing sawtooth input (pin used drive common circuits synchronous multiple-rail power supplies uncommitted output transistors provide either common circuits synchronous Power supplier.The uncommitted output transistors provide either common-emitter emitter-follower output capability .Each device provides push-pull single-ended output operation, which selected throug outpu control function architecture these devices prohibits possibility either output being pulsed twice during push-pull operation.
Features
Complete Power Control Circuitry
Uncommitted Outputs sink Source Current Output control Selects Singel-Ended Push-Pull operation
Internal Circuitry Prohibits Double Pulse Either output Variable Dead-Time Provides Control over Total Range Internal
Regulator Provides Stable Reference supply Circuit Architecture Allows Easy Synchronization
Block Digram
Package
BEIJING ESTEK ELECTRONICS CO.,LTD
KA7500
Absolute Maximum Ratings
Over Operating Free-air Temerature Range (Unless Otherwise Noted)
Rating Supply voltage ,Vcc Amplifier input voltage Collector output voltage Collector output current Operating free-air temperature range Storage temperature range Lead temperature from case seconds Value Vcc+0.3 Unit
Recommended Operating Conditions
Parameter Supply voltage ,Vcc Amplifier input voltage Collector output voltage Collector output current (each transistor) Current into feedback terminal Timing capacitor Timing resistor Oscillator frequency Operating free-air temperature -0.3 Value Vcc-2 Unit
0.0047
Electrical Characteristics
Over Operating Free-air Temerature Range,Vcc=15V,f=10kHz Noted) (Unless Otherwise
Reference Section
Parameter Output voltage(Vref) Line regulation Load regulation Short-circuit output current*** Test conditions Io=1mA Io=1mA,TA=25°C**** Vcc=7V Io=1Ma 10mA Vref=0 4.95 Value TYP** Unit 5.05
BEIJING ESTEK ELECTRONICS CO.,LTD
KA7500
Oscillator section (See Figure
Parameter Frequency Frequency Frequency change with temperature ***** Test conditions* CT=0.01µ T=12K,TA=25°C CT=0.01µ T=12K CT=0.01µ T=12K TA=MIN Value TYP** Unit 10.8
Amplifier section (See Figure
Parameter Input offset voltage Input offset current Input blas current Common-mode input voltage range Open-loop voltage amplification Unity-gain bandwidth Test conditions Vo(pin 3)=2.5V Vo(pin 3)=2.5V Vo(pin 3)=2.5V Vcc=7V Vo=3V,RL=2K, Value TYP* Unit
-0.3 Vcc-2
Output Section
Parameter Collector off-state current Emitter off-state current Collector-emitter saturation voltage Output control input current Test conditions VCE=40V,Ccc=40V Vcc=Vc=40V,VE=0 VE=0,Ic=200mA VC=15V,IE=-200mA VI=Vref Value TYP** Unit -100
Common-emitter Emitter-follower
Dead -Time Control Section(See Figure
Parameter Input bias current (pin Maximum duty cycle, each output Input threshold voltage (pin Test conditions VI=0 5.25V VI(pin 4)=0,O.C.=Vref Zero duty cycle Maximum duty cycle Value TYP** Unit
Comparator Section(See Figure
Parameter Test conditions Zero duty cycle V(pin 3)=0.7V Value TYP** Unit
Input threshold voltage(pin Input sink current (pin
BEIJING ESTEK ELECTRONICS CO.,LTD
KA7500
Total Device
Parameter Standby supply current Vref Test conditions Vcc=15V Value TYP** Unit
Switching Characteristics,
Parameter Output voltage rise time Output voltage fall time Output voltage rise time Output voltage fall time
Test conditions Value TYP** Unit
Common-emitter configuration, figure Emitter-follower configuration. Figure
*For conditions shown MAX, appropriate value specified under recommended operating conditions. **All typical values except parameter changes with temperature TA=25°C ***Duration short-circuit should exceed second ****This guaranteed where marking code package surface *****Temperature coefficient timing capacitor timing resistor taken into account.
Parameter Measurement Information
BEIJING ESTEK ELECTRONICS CO.,LTD
KA7500
Figure Operational test circuit waveforms
Figure 2.Amplifier characteristics
BEIJING ESTEK ELECTRONICS CO.,LTD
KA7500
Figure Common emitter configuration
Figure Emitter follower configuration
Ordering Information
RDERI KA7500 DIP-16 KA7500
Address
Postalcode:100039 Tel: 86-010-58895780 Http://www.estek.com.cn Email:sales@estek.com.cn
6A06-6A07 6A07,Changyin Office Building ,No.88,Yong Ding Road,Hai Dian District ,Beijing
010-58895793
No:01-060816
BEIJING ESTEK ELECTRONICS CO.,LTD

KA7500 incorporate single monolithic chip functions required construct

Top Searches for this datasheet

Other recent searches