参数资料
型号: MC34063ADR2
厂商: ON Semiconductor
文件页数: 4/15页
文件大小: 0K
描述: IC REG BUCK BOOST INV ADJ 8SOIC
产品变化通告: LTB Notification 03/Jan/2008
标准包装: 1
类型: 降压(降压),升压(升压),反相
输出类型: 可调式
输出数: 1
输出电压: 1.25 V ~ 40 V
输入电压: 3 V ~ 40 V
频率 - 开关: 100kHz
电流 - 输出: 1.5A
同步整流器:
工作温度: 0°C ~ 70°C
安装类型: 表面贴装
封装/外壳: 8-SOIC(0.154",3.90mm 宽)
包装: 剪切带 (CT)
供应商设备封装: 8-SOICN
其它名称: MC34063ADR2OSCT
MC34063A, MC33063A, SC34063A, SC33063A, NCV33063A
18
180
16
14
12
10
8
V CC = 5.0 V, Pin 7 = V CC
Pin 5 = GND, T A = 25 ° C
ON TIME ( m s)
160
140
120
100
80
6
4
2
OFF TIME ( m s)
FREQUENCY (kHz)
60
40
20
V CC = 5.0 V
Pin 7 = V CC
Pin 2 = GND
Pins 1, 5, 8 = Open
C T = 1.0 nF
T A = 25 ° C
0
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
0
5.0
10 m s/DIV
1.8
Ct, TIMING CAPACITOR CAPACITANCE (nF)
Figure 3. Oscillator Frequency
1.1
Figure 4. Timing Capacitor Waveform
1.7
1.6
1.5
1.0
0.9
0.8
0.7
Darlington Connection
1.4
1.3
1.2
1.1
V CC = 5.0 V
Pins 1, 7, 8 = V CC
Pins 3, 5 = GND
T A = 25 ° C
(See Note 7)
0.6
0.5
0.4
0.3
0.2
0.1
V CC = 5.0 V
Pin 7 = V CC
Pins 2, 3, 5 = GND
T A = 25 ° C
(See Note 7)
Forced b = 20
1.0
0
0
0.2
0.4
0.6 0.8 1.0 1.2
1.4
1.6
0
0.2
0.4
0.6 0.8 1.0 1.2
1.4
1.6
400
380
I E , EMITTER CURRENT (A)
Figure 5. Emitter Follower Configuration Output
Saturation Voltage versus Emitter Current
3.6
3.2
I C , COLLECTOR CURRENT(A)
Figure 6. Common Emitter Configuration Output
Switch Saturation Voltage versus
Collector Current
360
340
320
300
280
V CC = 5.0 V
I chg = I dischg
2.8
2.4
2.0
1.6
260
240
220
1.2
0.8
0.4
C T = 1.0 nF
Pin 7 = V CC
Pin 2 = GND
200
-55
-25
0 25 50 75
100
125
0
0
5.0
10
15 20 25 30
35
40
T A , AMBIENT TEMPERATURE ( ° C)
Figure 7. Current Limit Sense Voltage
versus Temperature
V CC , SUPPLY VOLTAGE (V)
Figure 8. Standby Supply Current versus
Supply Voltage
7. Low duty cycle pulse techniques are used during test to maintain junction temperature as close to ambient temperature as possible.
http://onsemi.com
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