參數(shù)資料
型號： MC44604
廠商： ON SEMICONDUCTOR
英文描述： High Safety Pulsed Mode Stanby GreenLine PWM Controller
中文描述： 高安全性脈沖模式Stanby二七二三六七六七PWM控制器
文件頁數(shù)： 4/24頁
文件大?。?/td> 341K
代理商： MC44604
MC44604
http://onsemi.com
4
ELECTRICAL CHARACTERISTICS
(VCC and VC = 12 V [Note 1.], Rref = 10 k
, CT = 820 pF, for typical values TA = 25
°
C,
for min/max values TA = –25
°
to +85
°
C [Note 2.], unless otherwise noted.)
Characteristic
Pin #
Symbol
Min
Typ
Max
Unit
ERROR AMPLIFIER SECTION (continued)
Output Current
Sink (VE/A out = 1.5 V, VFB = 2.7 V)
TA = –25
°
to +85
°
C
Source (VE/A out = 5.0 V, VFB = 2.3 V)
TA = –25
°
to +85
°
C
Output Voltage Swing
High State (IE/A out (source) = 0.5 mA, VFB = 2.3 V)
Low State (IE/A out (sink) = 0.33 mA, VFB = 2.7 V)
REFERENCE SECTION
13
mA
ISink
2.0
12
–
ISource
–2.0
–
–0.2
13
V
VOH
VOL
5.5
–
6.5
1.0
7.5
1.1
Reference Output Voltage (VCC = 10 V to 15 V)
Reference Current Range (Iref = Vref/Rref, R = 5.0 k to 25 k
)
Reference Voltage Over Iref Range
OSCILLATOR SECTION
16
Vref
Iref
Vref
2.4
2.5
2.6
V
16
–500
–
–100
μ
A
–40
–
40
mV
Frequency
TA = 0
°
to +70
°
C
TA = –25
°
to +85
°
C
Frequency Change with Voltage (VCC = 10 V to 15 V)
Frequency Change with Temperature (TA = –25
°
to +85
°
C)
Oscillator Voltage Swing (Peak–to–Peak)
FOSC
kHz
40.5
40
46
–
48.5
49
FOSC/
V
FOSC/
T
VOSC(P–P)
Icharge/Iref
D
–
0.05
–
%/V
–
0.05
–
%/
°
C
10
–
2.0
–
V
Ratio Charge Current/Reference Current (TA = –25
°
to +85
°
C)
Fixed Maximum Duty Cycle = Idischarge/(Idischarge + Icharge)
UNDERVOLTAGE LOCKOUT SECTION
0.35
–
0.43
–
78
80
82
%
Start–up Threshold
1
Vstup–th
Vdisable1
13.6
14.5
15.4
V
Disable Voltage After Threshold Turn–On
TA = 0
°
to +70
°
C
TA = –25
°
to +85
°
C
Disable Voltage After Threshold Turn–On
1
V
8.6
8.3
9.0
–
9.4
9.6
1
Vdisable2
Vstup–th
–Vdisable2
7.0
7.5
8.0
V
Delta VCC During Standby (Vstup–th –Vdisable2)
(TA = –25
°
C to 85
°
C)
DEMAGNETIZATION DETECTION SECTION
Demagnetization Detect Input
Demagnetization Comparator Threshold (Vpin8 Decreasing)
Propagation Delay (Input to Output, Low to High)
Input Bias Current (Vdemag = 65 mV)
Negative Clamp Level (Idemag = –2.0 mA)
Positive Clamp Level (Idemag = +2.0 mA)
SOFT–START SECTION
Ratio Charge Current/Iref
TA = 0
°
to +70
°
C
TA = –25
°
to +85
°
C
Discharge Current (Vsoft–start = 1.0 V)
Clamp Level
1
1.8
2.0
2.2
V
8
Vdemag–th
–
Idemag–lb
CL(neg)
CL(pos)
50
–
–0.5
65
0.25
–
80
–
–
mV
μ
s
μ
A
–
–0.38
–
V
–
0.72
–
V
Iss(ch)/Iref
–
0.37
0.36
0.4
–
0.43
0.44
11
Idischarge
Vss(CL)
Dsoft–start 12k
Dsoft–start
1.5
5.0
–
mA
2.2
2.4
2.6
V
Duty Cycle (Rsoft–start = 12 k
)
Duty Cycle
(Vsoft–start (pin11) = 0.1 V)
1. Adjust VCC above the start–up threshold before setting to 12 V.
2. Low duty cycle pulse techniques are used during test to maintain junction temperature as close to ambient as possible.
36
–
42
–
49
0
%
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相關代理商/技術參數(shù)
參數(shù)描述
MC44604_05 制造商:ONSEMI 制造商全稱:ON Semiconductor 功能描述:High Safety Pulsed Mode Standby GreenLine TM PWM Controller
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