Product Information

UC3845BVDR2G

UC3845BVDR2G electronic component of ON Semiconductor

Datasheet
Switching Controllers ANA SMPS PWM CNTRLLR

Manufacturer: ON Semiconductor
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Price (USD)

1: USD 0.31 ea
Line Total: USD 0.31

1524 - Global Stock
Ships to you between
Thu. 16 May to Wed. 22 May
MOQ: 1  Multiples: 1
Pack Size: 1
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1524 - WHS 1


Ships to you between Thu. 16 May to Wed. 22 May

MOQ : 1
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UC3845BVDR2G
ON Semiconductor

1 : USD 0.31

2425 - WHS 2


Ships to you between Thu. 16 May to Wed. 22 May

MOQ : 1
Multiples : 1

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UC3845BVDR2G
ON Semiconductor

1 : USD 0.5332
10 : USD 0.528
25 : USD 0.5136
100 : USD 0.477
250 : USD 0.4675
500 : USD 0.4675
1000 : USD 0.4675

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UC3845BVDR2G
ON Semiconductor

1 : USD 0.88
10 : USD 0.7397
30 : USD 0.6694
100 : USD 0.5453
500 : USD 0.5049
1000 : USD 0.4833

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UC3845BVDR2G
ON Semiconductor

1 : USD 0.7372
10 : USD 0.6451
100 : USD 0.4577
500 : USD 0.445
1000 : USD 0.4382
2500 : USD 0.4336
5000 : USD 0.4324
10000 : USD 0.4278

2425 - WHS 5


Ships to you between Thu. 16 May to Wed. 22 May

MOQ : 16
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UC3845BVDR2G
ON Semiconductor

16 : USD 0.5491
25 : USD 0.5342
100 : USD 0.4961
250 : USD 0.4862

1524 - WHS 6


Ships to you between Thu. 16 May to Wed. 22 May

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UC3845BVDR2G
ON Semiconductor

24 : USD 0.3224

     
Manufacturer
Product Category
RoHS - XON
Icon ROHS
Topology
Number of Outputs
Switching Frequency
Duty Cycle - Max
Output Voltage
Output Current
Minimum Operating Temperature
Maximum Operating Temperature
Mounting Style
Package / Case
Packaging
Series
Type
Brand
Fall Time
Rise Time
Factory Pack Quantity :
Isolation
Shutdown
Cnhts
Hts Code
Mxhts
Operating Supply Voltage
Product Type
Subcategory
Taric
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UC3844B, UC3845B, UC2844B, UC2845B High Performance Current Mode Controllers The UC3844B, UC3845B series are high performance fixed frequency current mode controllers. They are specifically designed for OffLine and dcdc converter applications offering the designer a costeffective solution with minimal external components. These integrated circuits UC3844B, UC3845B, UC2844B, UC2845B MAXIMUM RATINGS Rating Symbol Value Unit Bias and Driver Voltages (Zero Series Impedance, see also Total Device spec) (Note 1) V , V 36 V CC C Total Power Supply and Zener Current (I + I ) 30 mA CC Z Output Current, Source or Sink (Note 2) I 1.0 A O Output Energy (Capacitive Load per Cycle) W 5.0 J Current Sense and Voltage Feedback Inputs V 0.3 to + 5.5 V in Error Amp Output Sink Current I 10 mA O Power Dissipation and Thermal Characteristics D Suffix, Plastic Package, SOIC14 Case 751A Maximum Power Dissipation T = 25C P 862 mW A D Thermal Resistance, JunctiontoAir R 145 C/W JA D1 Suffix, Plastic Package, SOIC8 Case 751 Maximum Power Dissipation T = 25C P 702 mW A D Thermal Resistance, JunctiontoAir 178 C/W R JA N Suffix, Plastic Package, Case 626 Maximum Power Dissipation T = 25C P 1.25 W A D Thermal Resistance, JunctiontoAir R 100 C/W JA Operating Junction Temperature T +150 C J Operating Ambient Temperature UC3844B, UC3845B T 0 to +70 C A UC2844B, UC2845B 25 to +85 UC3844BV, UC3845BV 40 to +105 Storage Temperature Range T 65 to +150 C stg Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect device reliability. 1. The voltage is clamped by a zener diode (see page 9 Under Voltage Lockout section). Therefore this voltage may be exceeded as long as the total power supply and zener current is not exceeded. 2. Maximum package power dissipation limits must be observed. 3. This device series contains ESD protection and exceeds the following tests: Human Body Model 4000 V per JEDEC Standard JESD22-A114B, Machine Model Method 200 V per JEDEC Standard JESD22-A115-A 4. This device contains latch-up protection and exceeds 100 mA per JEDEC Standard JESD78 ELECTRICAL CHARACTERISTICS (V = 15 V Note 5 , R = 10 k, C = 3.3 nF. For typical values T = 25C, for min/max values CC T T A T is the operating ambient temperature range that applies Note 6 , unless otherwise noted.) A UC284xB UC384xB, xBV, NCV384xBV Characteristic Symbol Min Typ Max Min Typ Max Unit REFERENCE SECTION Reference Output Voltage (I = 1.0 mA, T = 25C) V 4.95 5.0 5.05 4.9 5.0 5.1 V O J ref Line Regulation (V = 12 V to 25 V) Reg 2.0 20 2.0 20 mV CC line Load Regulation (I = 1.0 mA to 20 mA) Reg 3.0 25 3.0 25 mV O load Temperature Stability T 0.2 0.2 mV/C S Total Output Variation over Line, Load, & Temperature V 4.9 5.1 4.82 5.18 V ref Output Noise Voltage (f = 10 Hz to 10 kHz, T = 25C) V 50 50 V J n Long Term Stability (T = 125C for 1000 Hours) S 5.0 5.0 mV A Output Short Circuit Current I 30 85 180 30 85 180 mA SC OSCILLATOR SECTION Frequency T = 25C f 49 52 55 49 52 55 kHz J OSC T = T to T 48 56 48 56 A low high T = 25C (R = 6.2 k, C = 1.0 nF) 225 250 275 225 250 275 J T T Frequency Change with Voltage (V = 12 V to 25 V) f / V 0.2 1.0 0.2 1.0 % CC OSC Frequency Change w/ Temperature (T = T to T ) f / T 1.0 0.5 % A low high OSC Oscillator Voltage Swing (PeaktoPeak) V 1.6 1.6 V OSC 5. Adjust V above the Startup threshold before setting to 15 V. CC 6. Low duty cycle pulse techniques are used during test to maintain junction temperature as close to ambient as possible. T =0C for UC3844B, UC3845B T =+70C for UC3844B, UC3845B low high = 25C for UC2844B, UC2845B = + 85C for UC2844B, UC2845B = 40C for UC384xBV, NCV384xBV =+105C for UC3844BV, UC3845BV = +125C for NCV384xBV

Tariff Desc

8542.31.00 51 No ..Application Specific (Digital) Integrated Circuits (ASIC)

Electronic integrated circuits: Processors and controllers, whether or not combined with memories, converters, logic circuits, amplifiers, clock and timing circuits, or other circuits
Monolithic integrated circuits:
Aptina / ON Semiconductor
FAIRCHILD
FAIRCHILD (ON SEMICONDUCTOR)
Fairchild Semiconductor
FS8
FSC
ON
ON SEMI
ON Semicon
ON SEMICONDUCTOR
ON SEMICONDUCTOR (FAIRCHILD)
ON Semiconductor / Fairchild
ON4
ON5
onsemi
ON-SEMI
onsemi / Fairchild
OOF
Xsens / Fairchild

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