34063A芯片引脚定义引脚图及功能IC贸易商引脚图技术参数-中国IC网-芯三七

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产品型号34063A的概述

芯片34063A的概述芯片34063A是一款广泛应用的直流-直流转换器，其主要功能是提供稳定的电压输出。该集成电路以其良好的性能和可靠性，成为电子设计中常用的电源管理方案之一。34063A可以工作在升压、降压或反向转换模式，具有灵活的应用场景，尤其是在电池供电的系统中。此外，其封装设计小巧，适用于空间受限的设备中，深受开发者和工程师的喜爱。芯片34063A的详细参数 34063A的参数包括其工作电压范围、输出电流能力、开关频率及功率效率等。主要的技术参数如下： - 输入电压范围：3V至40V - 输出电流：最大可达1.5A - 开关频率：可达到100kHz - 效率：在适当的条件下，可以达到80%以上 - 温度范围：工作温度范围为-40°C至+125°C - 封装类型：一般采用TO-220、DIP-8和SOIC-8等封装形式由于这些性能参数，34063A能够满足多种应用要求，包括...

产品型号34063A的Datasheet PDF文件预览

34063

Description

The MC34063

These devices consis

wi h an active rrent li

incorpo in Ste own and Ste

componen

ies is

of an interna

ci ui dr

monolithic con

mperatur

er and hig

and Volta

ol ci

compensa

rrent output switc

Invertin appl at

con

aining th

primary functi

comparator

This series was s

ns wi mini

ns re

cont

ecific

num

d fo

olled du

lly designed to be

of ex nal

DC-t

DC con

referenc

cycl osc

llato

ts.

ter

Features

•

Operation from 3.0 V to 40 V Input

Low Standby Current

Current Limiting

Output Switch Current to 1.5 A

Output Voltage Adjustable

Frequency Operation to 100 kHz

Precision 2% Reference

Plastic Package

Pin Connections

Internal Block Digram

Driver

llector

Switch

llector

nse

100

Swit

Em tt

Tim

C_T

Oscilla

tor

Capacitor

om arator

1.25

Ref

rence

Com

ara

tor

Inp

Gnd

BEIJING ESTEK ELECTRONICS CO.,LTD

34063

Absolute Maximum Ratings

Symbol

Parameter

Maximum

Units

Vdc

V_CC

V_IR

Power Supply Voltage

-0.3 to +40

Comparator Input Voltage Range

Switch Collector Voltage

V_C(switch)

V_E(switch)

V_CE(switch)

V_C(driver)

I_C(driver)

I_SW

Switch Emitter Voltage (V_PIN1= 40 V)

Switch Collector to Emitter Voltage

Driver Collector Voltage

Driver Collector Current (Note 1)

Switch Current

100

1.5

T_J

Operating Junction Temperature

Operating Ambient Temperature Range

Storage Temperature Range

+150

0 to +70

-65 to +150

°C

T_A

°C

Tstg

°C

Electrical Characteristics

(Vcc=5.0V, Ta=Tlow to Thigh , unless otherwise

Characteristics

OSCILLATOR

Symbol

Min

Typ

Max Units

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

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

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

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

OSC

chg

dischg

kHz

µA

–

140

5.2

220

6.5

260

7.5

dischg

I_chg

Current Limit Sense Voltage (I_chg= I_dischg, T_A= 25°C)

OUTPUT SWITCH (NOTE 2)

ipk(sence)

250

300

350

Saturation Voltage, Darlington Connection (I_SW= 1.0 A, Pins 1, 8 connected)

Saturation Voltage, Darlington Connection (I_SW= 1.0 A, R_{pin 8}= 82Ω to V_CC, Forced

DC Current Gain (I_SW= 1.0 A, V_CE= 5.0 V, T_A= 25°C)

Collector Off-State Current (V_CE= 40 V)

V_CE(sat)

–

1.0

0.45

1.3

0.7

–

≅

20)

CE(sat)

–

I_C(off)

Vth

100

µA

COMPARATOR

Threshold Voltage

(T_A=25°C)

1.225 1.25 1.275

1.21

–

1.29

5.0

(T_A=T_lowto T_high

)

Threshold Voltage Line Regulation

(Vcc=3.0 V to 40 V)

Input Bias Current

(Vin=0 V)

Reg_line

I_IB

1.4

–

-20

–

-400

4.0

TOTAL DEVICE

Supply Current (Vcc = 5.0 V to 40 V, C_T= 1.0 nF, Pin 7 = V_CC, Vpin 5 > Vth, Pin 2 =

Gnd, remaining pins open)

I_CC

NOTES : 1.Maximum package power dissipation limits must be observed.

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

as close to ambient temperature as possible

BEIJING ESTEK ELECTRONICS CO.,LTD

34063

Typical Performance Characteristics

1. Outpu

Os ll

ff Ti

ver

sus

Timi

Capa

Figure 2. Timing Capacitor Waveform

tter

Follo

urat

n Outpu

4. Commo

tter

uration

Saturation Volta

versus

versus Emitte

Curren

Output Sw

Saturation Voltage

5. Current Limi

ve sus Te

Sense Volta

ure

6. Stand

by Supply Current versus

Sup ly Voltage

BEIJING ESTEK ELECTRONICS CO.,LTD

34063

Typical Applications Circuit

Figure 1. Step-Up Converte r.

Note: R to 0 for constant V_in

Figure 2b. External NPN Saturated Switch.

eak Greater than

Figure 2a. External NPN Switch.

Figure 2. External Current Boost Connections for I

BEIJING ESTEK ELECTRONICS CO.,LTD

34063

Figure 3. Step-Down Converte r.

Figure 4a. External NPN Switch.

Figure 4. External Current Boost Connections for I

Figure 4b. External PNP Suturated Switch.

eak Greater than

BEIJING ESTEK ELECTRONICS CO.,LTD

34063

Figure 5. Voltage Inverting Converte r.

Figure 6a. External NPN Switch.

Figure 6b. External PNP Saturated Switch.

eak Greater than

Figure 6. External Current Boost Connections for I

BEIJING ESTEK ELECTRONICS CO.,LTD

34063

Design Formula Table

Calculatio

Step-Up

Step-Down

Voltage-Inverting

t_on/t_of

−

_iV_n

out

_iV_n

V_F

out

+V_F

−

V_sat

−

(min)

V_sat

−

_saV_t

_ouV_t

(t_on+t_of)m

min

-5

₁

₀

t_on

C_T

l_pk(

10 t_on

10^-5



__ot_n



ch)

_t



2I_out(max)

1_



1_

(max)



R_SC

0.3/l_pk(

ch)

L_(m

)



−

in(min)



−

V_sat



−

V_sat



sat

_iV_n

in(min)



V_out



t_on

(max)

t_on(max)



on(max)



I _pk

I_{pk (switch)}

I _{pk (switch )}

(

switch

)



C_O

I_outt_on

I_{pk (switch )}

V_{ripple( pp)}

)

V_{ripple( pp)}

8V_{ripple( pp )}

TERMS AND DEFINITIONS

V_sat

V_F-

Saturation voltage of the output switch.

Forward voltage drop of the output rectifier.

The following power supply characteristics must be chosen:



V_out



V_in

V_out

I_out

Nominal input voltage.

Desired output voltage,

Desired output current.

f_min

Minimum desired output switching frequency at the selected values of V_inand I_O.

V_ripple(p-p)–Desired peack-to-peack output ripple voltage. In practice, the calculated capacitor value will need to be increased due to its

equivalent series resistance and board layout. The ripple voltage should be kept to a low value since it will directly affect the

line and load regulation.

Ordering Information

ORDERING NUMBER

PACKAGE

MARKING

MC34063A

34063A

SOP-8 /DIP-8

Address :

6A06--6A07

Rm 6A07,Changyin Office Building ,No.88,Yong Ding Road,Hai Dian District ,Beijing

Postalcode:100039

Tel: 86-010-58895780 / 81 / 82 / 83 / 84

Http://www.estek.com.cn

Fax : 010-58895793

Email:sales@estek.com.cn

REV No:01-060810

BEIJING ESTEK ELECTRONICS CO.,LTD

34063A相关文章

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34067产品参数

型号:	34067
Brand Name：	AMP
是否无铅：	不含铅
是否Rohs认证：	符合
生命周期：	Active
IHS 制造商：	TE CONNECTIVITY LTD
Reach Compliance Code：	compliant
ECCN代码：	EAR99
HTS代码：	8536.90.40.00
Factory Lead Time：	13 weeks
风险等级：	1.74
Samacsys Description：	PG BUTT SPLC 22-16COMM22-18MIL
端子和端子排类型：	WIRE TERMINAL
线规：	16 AWG

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产品型号34063A的概述

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