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AN8021SB

Features: · It operates at a control frequency up to 700 kHz, realizing the output rise time of 35 ns and the output fall time of 25 ns.· Pre-start operating current is as small as 70 mA (typical) so that it is possible to use a miniaturized start resistor.· Output block employs totem pole method....

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SeekIC No. : 004285597 Detail

AN8021SB: Features: · It operates at a control frequency up to 700 kHz, realizing the output rise time of 35 ns and the output fall time of 25 ns.· Pre-start operating current is as small as 70 mA (typical) s...

AN8021SB Data Sheet

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Part Number:
AN8021SB
Supply Ability:
5000

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  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Product Details

Description



Features:

· It operates at a control frequency up to 700 kHz, realizing the output rise time of 35 ns and the output fall time of 25 ns.
· Pre-start operating current is as small as 70 mA (typical) so that it is possible to use a miniaturized start resistor.
· Output block employs totem pole method.
    The absolute maximum rating of ±1.0 A (peak) allows the direct drive of power MOSFET.
· Built-in pulse-by-pulse overcurrent protection circuit
· Built-in protection circuit against malfunction at low  ltage (on/off: 14.2 V/9.2 V)
· Equipped with timer latch function and overvoltage protection  circuit.
· Two kinds of packages: 9-pin SIP, 16-pin SOP


Application

· Various power supply equipment


Pinout

Connection Diagram


Specifications

Parameter Symbol Rating Unit
Supply voltage VCC 35 V
OVP terminal allowable application voltage VOVP VCC V
CLM terminal allowable application voltage VCLM - 0.3 to +7.0 V
SS terminal allowable application voltage VSS - 0.3 to +7.0 V
Constant output current IO ±150 mA
Peak output current IOP ±1 000 mA
IFB terminal allowable application voltage IFB -5 mA
Power dissipation AN8021L PD 658 mW
AN8021SB 340
Operating ambient temperature * Topr -30 to +85 °C
Storage temperature * Tstg -55 to +150 °C



Description

Pin No. Symbol Description Pin No. Symbol Description
1 PGND Grounding pin 10 N.C. N.C.
2 VOUT Power MOSFET direct drive pin 11 SS Soft start pin
3 PVCC Power supply voltage pin 12 RT Charge and discharge current of
triangular wave determining resistance
connection pin
4 SVCC Power supply voltage pin
5 TIM/OVP Pin for overvoltage protection and
timer latch combined use
13 CT Triangular wave generating capacitor
connection pin
6 IFB Power supply output photocoupler
current feedback signal input pin
14 N.C. N.C.
7 N.C. N.C. 15 CLM(-) Pulse-by-pulse overcurrent protection
input pin
8 N.C. N.C.
9 N.C. N.C. 16 SGND Grounding pin



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