MC44605(2000) データシートの表示（PDF） - ON Semiconductor
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MC44605
(Rev.:2000)
(Rev.:2000)
ON Semiconductor
MC44605 Datasheet PDF : 20 Pages
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MC44605
ELECTRICAL CHARACTERISTICS (VCC and VC = 12 V, Rref = 10 kΩ, CT = 2.2 nF, for typical values TA = 25°C, for min/max
values TA = –25° to +85°C unless otherwise noted.) (Note 1.)
Characteristic
Pin #
Symbol
Min
Typ
Max
Unit
REFERENCE SECTION
Reference Output Voltage (VCC = 10 V to 15 V)
16
Reference Current Range (Iref = Vref/Rref, R = 5.0 k to 25 kΩ)
16
Reference Voltage Over Iref Range
DEMAGNETIZATION DETECTION SECTION (Note 2.)
Vref
Iref
∆Vref
2.4
2.5
2.6
V
–500
–
–100
µA
–40
–
40
mV
Demagnetization Detect Input
Demagnetization Comparator Threshold (Vpin9 Decreasing)
Propagation Delay (Input to Output, Low to High)
Input Bias Current (Vdemag = 65 mV)
Minimum Off–Time when the pin 8 is grounded
Negative Clamp Level (Idemag = –2.0 mA)
Positive Clamp Level (Idemag = +2.0 mA)
SOFT–START SECTION (Note 3.)
8
Vdemag–th
50
65
tPLH(In/Out)
–
0.5
Idemag–lb
–0.5
–
80
mV
–
µs
–
µA
TDEM–GND
1.5
3.0
4.5
µs
CLVL–neg –0.50 –0.38 –0.25
V
CLVL–pos
0.50
0.72
0.85
V
Ratio Charge Current/Iref (TA = –25° to +85°C)
Iss–ch/Iref
0.37
–
0.43
–
Discharge Current (Vsoft–start = 1.0 V)
Idischarge
1.5
5.0
–
mA
Clamp Level
VSS–CLVL
2.2
2.4
2.6
V
Circuit Inhibition Threshold*
VSSinhi
30
–
150
mV
VCS Soft–Start Clamp Level (Rsoft–start = 5 kΩ)
VCSsoft–start 0.45
0.5
0.55
V
*The circuit is shutdown if the Soft–Start pin voltage is lower than this level.
1. Adjust VCC above the start–up 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.
2. This function can be inhibited by connecting pin 8 to GND. In this case, there is a minimum off–time equal to TDEM–GND.
3. The MC44605 can be shut down by connecting Soft–Start pin (pin 11) to Ground.
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