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MC34063AB の電気的特性と機能

MC34063ABのメーカーはSTMicroelectronicsです、この部品の機能は「DC-DC converter control circuits」です。


製品の詳細 ( Datasheet PDF )

部品番号 MC34063AB
部品説明 DC-DC converter control circuits
メーカ STMicroelectronics
ロゴ STMicroelectronics ロゴ 




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MC34063AB Datasheet, MC34063AB PDF,ピン配置, 機能
DIP-8
SO-8
Features
Output switch current in excess of 1.5 A
2 % reference accuracy
Low quiescent current: 2.5 mA (typ.)
Operating from 3 V to 40 V
Frequency operation to 100 kHz
Active current limiting
MC34063AB, MC34063AC,
MC34063EB, MC34063EC
DC-DC converter control circuits
Datasheet - production data
Description
The MC34063A/E series is a monolithic control
circuit which delivers the main functions for DC-
DC voltage converting.
The device contains an internal temperature
compensated reference, comparator, duty cycle
controlled oscillator with an active current limit
circuit, driver and high current output switch.
Output voltage is adjustable through two external
resistors with a 2% reference accuracy.
Employing a minimum number of external
components, the MC34063A/E device series is
designed for step-down, step-up and voltage-
inverting applications.
DIP-8
MC34063ABN
MC34063ACN
MC34063EBN
MC34063ECN
Table 1. Device summary
Order codes
SO-8
MC34063ABD-TR
MC34063ACD-TR
MC34063EBD-TR
MC34063ECD-TR
April 2013
This is information on a product in full production.
DocID5257 Rev 11
1/23
www.st.com
23

1 Page





MC34063AB pdf, ピン配列
MC34063AB, MC34063AC, MC34063EB, MC34063EC
1 Diagram
Figure 1. Block diagram
Diagram
DocID5257 Rev 11
3/23


3Pages


MC34063AB 電子部品, 半導体
Electrical characteristics
MC34063AB, MC34063AC, MC34063EB, MC34063EC
4 Electrical characteristics
Refer to the test circuits, VCC = 5 V, TA = TLOW to THIGH, unless otherwise specified. (a)
Symbol
Parameter
Table 5. Oscillator
Test conditions
fOSC
Frequency
ICHG
Charge current
IDISCHG Discharge current
IDISCHG/ICHG
Discharge to charge
current ratio
VPIN5 = 0V, CT = 1 nF, TA = 25°C
VCC = 5 to 40V, TA = 25°C
VCC = 5 to 40V, TA = 25°C
PIN 7 = VCC, TA = 25°C
VIPK(sense) Current limit sense voltage ICHG = IDISCHG, TA = 25°C
Min. Typ. Max. Unit
24 33 42 kHz
24 33 42 µA
140 200 260 µA
5.2 6.2 7.5 µA
250 300 350 mV
Symbol
Parameter
Table 6. Output switch
Test conditions
VCE(sat)
Saturation voltage, Darlington
connection
ISW = 1 A, PIN 1, 8 connected
VCE(sat) Saturation voltage
ISW = 1 A, RPIN8 = 82 to VCC
Forced ~ 20
hFE
IC(off)
DC current gain
Collector off-state current
ISW = 1 A,VCE = 5 V, TA = 25°C
VCE = 40 V
Min. Typ. Max. Unit
1 1.3 V
0.45 0.7
V
50 120
0.01 100 µA
Symbol
Parameter
VTH Threshold voltage
Regline
IIB
Threshold voltage line
regulation
Input bias current
Table 7. Comparator
Test conditions
TA = 25°C
TA = TLOW to THIGH
VCC = 3 to 40 V
VIN = 0 V
Min.
1.225
1.21
Typ.
1.25
Max.
1.275
1.29
Unit
V
1 5 mV
-5 -400 nA
6/23
a. TLOW = 0 °C, THIGH = 70 °C (AC and EC series); TLOW = -40 °C, THIGH = 85 °C (AB series); TLOW = -40 °C,
THIGH = 125 °C (EB series)
DocID5257 Rev 11

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共有リンク

Link :


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