欧美成人免费电影,国产欧美一区二区三区精品酒店,精品国产a毛片,色网在线免费观看

參數(shù)資料
型號(hào): MC34065
廠商: ON SEMICONDUCTOR
英文描述: Ultra-Small Supply Voltage Supervisors 5-SC70 -40 to 85
中文描述: 雙通道電流模式控制器
文件頁(yè)數(shù): 7/16頁(yè)
文件大小: 419K
代理商: MC34065
MC34065–H, L MC33065–H, L
7
MOTOROLA ANALOG IC DEVICE DATA
Undervoltage Lockout
Two Undervoltage Lockout comparators have been
incorporated to guarantee that the IC is fully functional before
the output stages are enabled. The positive power supply
terminal (VCC) and the reference output (Vref) are each
monitored by separate comparators. Each has built–in
hysteresis to prevent erratic output behavior as their
respective thresholds are crossed. The VCC comparator
upper and lower thresholds are 14 V/10 V for –H suffix, and
8.4 V/7.6 V for –L suffix. The Vref comparator upper and lower
thresholds are 3.6 V/3.4 V respectively. The large hysteresis
and low startup current of the –H suffix version makes it
ideally suited in off–line converter applications where efficient
bootstrap startup techniques are required (Figure 28). The –L
suffix version is intended for lower voltage dc–to–dc
converter applications. The minimum operating voltage for
the –H suffix is 11 V and 8.2 V for the –L suffix.
Drive Outputs and Drive Ground
Each section contains a single totem–pole output stage
that is specifically designed for direct drive of power
MOSFETs. The Drive Outputs are capable of up to
±
400 mA
peak current with a typical rise and fall time of 50 ns with a
1.0 nF load. Additional internal circuitry has been added to
keep the outputs in a sinking mode whenever an
Undervoltage Lockout is active. This characteristic eliminates
the need for an external pull–down resistor. The totem–pole
output has been optimized to minimize cross–conduction
current in high speed operation. The addition of two 10
resistors, one in series with the source output transistor and
one in series with the sink output transistor, reduces the
cross–conduction current to minimal levels, as shown in
Figure 13.
Although the Drive Outputs were optimized for MOSFETs,
they can easily supply the negative base current required by
bipolar NPN transistors for enhanced turn–off (Figure 25).
Figure 15. Representative Block Diagram
+
+
+
+
+
+
+
12
13
14
5
4
2
3
1
15
7
6
10
11
Vref
Sync Input
RT
CT
Voltage Feedback 1
Compensation 1
Enable Input
Voltage Feedback 2
Compensation 2
Vin= 15V
VCC
16
Q2
RS
Current Sense 2
Drive Output 2
Current Sense 1
Drive Output 1
RS
Q1
10
10
10
10
Gnd
8
Drive Gnd
9
=
Sink Only
Positive True Logic
1.0V
R
S
Q
R
R
PWM
Latch 2
S
R
Q
Current Sense
Comparator 2
2R
Error
Amp 2
Error
Amp 1
Vref
250
μ
A
1.0mA
1.0V
R
1.0mA
Oscillator
3.6V
+
20k
Internal
Bias
Reference
Regulator
R
R
2.5V
PWM
Latch 1
VCC
+
Current Sense
Comparator 1
Vref
2R
相關(guān)PDF資料
PDF描述
MC34065DW Ultra-Small 3-Pin Supply Voltage Supervisor 5-SC70 -40 to 85
MC34065DWH HIGH PERFORMANCE DUAL CHANNEL CURRENT MODE CONTROLLERS
MC34065P HIGH PERFORMANCE DUAL CHANNEL CURRENT MODE CONTROLLER
MC34065P-H Enhanced Product Single Voltage Detector 5-SC70 -40 to 125
MC34065P-L Automotive Catalog Single Voltage Detectors 5-SC70 -40 to 125
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MC34065DW 制造商:MOTOROLA 制造商全稱(chēng):Motorola, Inc 功能描述:HIGH PERFORMANCE DUAL CHANNEL CURRENT MODE CONTROLLER
MC34065DWH 制造商:ONSEMI 制造商全稱(chēng):ON Semiconductor 功能描述:HIGH PERFORMANCE DUAL CHANNEL CURRENT MODE CONTROLLERS
MC34065DW-H 制造商:ONSEMI 制造商全稱(chēng):ON Semiconductor 功能描述:High Performance Dual Channel Current Mode Controllers
MC34065DW-L 制造商:MOTOROLA 制造商全稱(chēng):Motorola, Inc 功能描述:HIGH PERFORMANCE DUAL CHANNEL CURRENT MODE CONTROLLERS
MC34065-H 制造商:ONSEMI 制造商全稱(chēng):ON Semiconductor 功能描述:HIGH PERFORMANCE DUAL CHANNEL CURRENT MODE CONTROLLERS
主站蜘蛛池模板: 兴隆县| 桂林市| 花莲市| 怀柔区| 苍山县| 弋阳县| 麻城市| 高安市| 新平| 额敏县| 宁乡县| 曲阜市| 阜新市| 南木林县| 甘谷县| 肇源县| 奇台县| 义乌市| 天峻县| 大石桥市| 沙湾县| 赤城县| 永州市| 黄龙县| 大厂| 峨山| 拜泉县| 兴和县| 木兰县| 鹿泉市| 闻喜县| 三河市| 红桥区| 陆良县| 仁怀市| 齐河县| 博野县| 孝昌县| 黎城县| 南溪县| 延寿县|