参数资料
型号: MC44608P40G
厂商: ON Semiconductor
文件页数: 4/15页
文件大小: 0K
描述: IC REG CTRLR FLYBK ISO PWM 8-DIP
产品变化通告: Product Obsolescence 01/Jul/2009
标准包装: 50
PWM 型: 电压模式
输出数: 1
频率 - 最大: 44kHz
占空比: 86%
电源电压: 6.6 V ~ 13 V
降压:
升压:
回扫:
反相:
倍增器:
除法器:
Cuk:
隔离:
工作温度: -25°C ~ 85°C
封装/外壳: 8-DIP(0.300",7.62mm)
包装: 管件
其它名称: MC44608P40GOS
MC44608
ELECTRICAL CHARACTERISTICS (V CC = 12 V, for typical values T A = 25 ? C, for min/max values T A = --25 ? C to +85 ? C unless
otherwise noted) (Note 2)
Characteristic
Symbol
Min
Typ
Max
Unit
DEMAGNETIZATION DETECTION section (note 3)
Demag Comparator Threshold (V pin1 increasing)
Demag Comparator Hysteresis (Note 4)
Propagation Delay (Input to Output, Low to High)
Input Bias Current (V demag = 50 mV)
Negative Clamp Level (I demag = --1.0 mA)
Positive Clamp Level @ I demag = 125 m A
Positive Clamp Level @ I demag = 25 m A
V dmg--th
H dmg
t PHL(In/Out)
I dem--lb
V cl--neg--dem
V cl--pos--dem--H
V cl--pos--dem--L
30
--
--
--0.6
--0.9
2.05
1.4
50
30
300
--
--0.7
2.3
1.7
69
--
--
--
--0.4
2.8
1.9
mV
mV
ns
m A
V
V
V
OVERTEMPERATURE section
Trip Level Over Temperature
Hysteresis
T high
T hyst
--
--
160
30
--
--
? C
? C
STANDBY MAXIMUM CURRENT REDUCTION section
Normal Mode Recovery Demag Pin Current Threshold
I dem--NM
20
25
30
m A
K FACTORS SECTION FOR PULSED MODE OPERATION
I CCS / I stup
I CCS / I stup
I CCL / I stup
(V stup -- UVLO2) / (V stup -- UVLO1)
(UVLO1 -- UVLO2) / (V stup -- UVLO1)
MC44608P40
MC44608P75
10 x K1
10 x K1
10 3 x K2
10 2 x K sstup
10 2 x K sl
2.4
2.8
46
1.8
90
2.9
3.3
52
2.2
120
3.8
4.2
63
2.6
150
--
--
--
--
--
I CS / V csth
10 6
x Y cstby
175
198
225
--
Demag ratio I ovp / I dem NM
(V3 1.0 mA -- V3 0.5 mA ) / (1.0 mA -- 0.5 mA)
V control Latchoff
Dmgr
R3
V3
3.0
--
--
4.7
1800
4.8
5.5
--
--
--
Ω
V
SUPPLY SECTION
Minimum Startup Voltage
V CC Startup Voltage
Output Disabling V CC Voltage After Turn On
Hysteresis (V stup--th -- V uvlo1 )
V CC Undervoltage Lockout Voltage
Hysteresis (V uvlo1 -- V uvlo2 )
Absolute Normal Condition V CC Start Current @ (V i = 100 V) and
(V CC = 9.0 V)
V ilow
V stup--th
V uvlo1
H stup--uvlo1
V uvlo2
H uvlo1--uvlo2
--(I CC )
--
12.5
9.5
--
6.2
--
7.0
--
13.1
10
3.1
6.6
3.4
9.5
50
13.8
10.5
--
7.0
--
12.8
V
V
V
V
V
V
mA
Switching Phase Supply Current (no load)
Latched Off Phase Supply Current
Hiccup Mode Duty Cycle (no load)
MC44608P40
MC44608P75
I CCS
I CC--latch
δ Hiccup
2.0
2.4
0.3
--
2.6
3.2
0.5
10
3.6
4.0
0.68
--
mA
mA
%
2. Adjust V CC above the startup threshold before setting to 12 V. Low duty cycle pulse techniques are used during test to maintain junction
temperature as close to ambient as possible.
3. This function can be inhibited by connecting pin 1 to GND.
4. Guaranteed by design (non tested).
http://onsemi.com
4
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