Datasheet > AV34063S

AV34063S

更新时间： 2022-12-17 01:59:51

品牌	Logo	应用领域
AVICTEK		稳压器开关
页数	文件大小	规格书
8页	258K
描述
1.5A,Step-Up/Down Inverting Switching Regulators

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AV34063S 数据手册

@vic

AV34063

ELECTRICAL CHARACTETRISTICS

(V_CC=5.0V,T_A=T_lowto T_high[Note1],unless otherwise specified.)

Characteristics

Symbol

Min

Typ

Max Unit

OSCILLATOR

F_OSC

I_chg

I_dischg

140

5.2

250

220

6.5

300

260

7.5

350

KHz

µA

Frequency(V_pin5=0V, C_T=1.0nF, T_A=25

Charge Current (V_CC=5.0V to 40V, T_A=25

)

Discharge Current (V_CC=5.0V to 40V, T_A=25

)

_dischg/I_chg

Discharge to Charge Current Ratio (Pin 7 to V_CC,T_A=25

)

V_ipk(sence)

Current Limit Sense Voltage (I_chg=I_dischg,T_A=25

)

OUTPUT SWITCH (NOTE 2)

Saturation Voltage, Darlington Connection (Note 3)

(I_SW=1.0A, Pins 1,8 connected)

1.0

1.3

0.7

V^CE(sat)

Saturation Voltage, Darlington Connection

0.45

(I_SW=1.0A, R_pin8=82Ω to V_CC,Forced β≈20)

H_EF

I_C(Off)

0.01

DC Current Gain (I_SW=1.0A, V^CE=5.0V, T_A=25

)

100

µA

Collector Off-State Current (V^CE=40V)

COMPARATOR

Threshold Voltage

1.238 1.25 1.262

(T_A=25

)

V^th

1.225

1.275

5.0

-400

(T_A= T_lowto T_high

)

Threshold Voltage Line Regulation (V_CC=3.0V to 40V)

Input Bias Current (V_in=0V)

1.4

-20

Reg^line

I^IB

TOTAL DEVICE

Supply Current ((V_CC=5.0V to 40V, C_T=1.0nF, (Pin 7 to

4.0

I^CC

_CC,(Pin 5> V^th(Pin 2=Gnd, remaining pins open)

Notes: 1. T_low=0

T_high=+70

2. Low duty cycle pulse techniques are used during test to maintain junction temperature as close

to ambient temperature as possible.

3. If the output switch is driven into hard saturation (non-Darlington) at low switch current

(≤300mA) and high driver currents (≥30mA),it may take up to 2.0 µs for it to come out of

saturation. This condition will shorten the off time at frequencies ≥30KHz, and is magnified at

high temperature. This condition does not occur with a Darlington configuration, since the

output switch cannot saturate. If a non-Darlington configuration is used, the following output

drive condition is recommended :

Forced β of output switch : ( I_Coutput/( I_Cdriver - 7.0mA) ≥10 )

*The 100Ω resister in the emitter of the driver device requires about 7.0mA before the output

switch conducts.

Website: http://www.avictek.com

1 234 5 6 7 8

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