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MC44608
http://onsemi.com
4
ELECTRICAL CHARACTERISTICS
(VCC = 12 V, for typical values TA = 25
°
C, for min/max values TA = –25
°
C to +85
°
C unless otherwise
noted) (Note 1)
Characteristic
Symbol
Min
Typ
Max
Unit
DEMAGNETIZATION DETECTION SECTION
(Note 2)
Demag Comparator Threshold (Vpin1 increasing)
Demag Comparator Hysteresis (Note 3)
Vdmg–th
Hdmg
tPHL(In/Out)
Idem–lb
Vcl–neg–dem
Vcl–pos–
dem–H
Vcl–pos–
dem–L
30
50
69
mV
30
mV
Propagation Delay (Input to Output, Low to High)
300
ns
Input Bias Current (Vdemag = 50 mV)
Negative Clamp Level (Idemag = –1 mA)
Positive Clamp Level @ Idemag = 125 A
–0.6
A
–0.9
–0.7
–0.4
V
2.05
2.3
2.8
V
Positive Clamp Level @ Idemag = 25 A
1.4
1.7
1.9
V
OVERTEMPERATURE SECTION
Trip Level Over Temperature
Thigh
Thyst
160
°
C
°
C
Hysteresis
30
STAND–BY MAXIMUM CURRENT REDUCTION SECTION
Normal Mode Recovery Demag Pin Current Threshold
Idem–NM
20
25
30
A
K FACTORS SECTION FOR PULSED MODE OPERATION
ICCS / Istup
ICCS / Istup
ICCS / Istup
ICCL / Istup
(Vstup – UVLO2) / (Vstup – UVLO1)
(UVLO1 – UVLO2) / (Vstup – UVLO1)
ICS / Vcsth
Demag ratio Iovp / Idem NM
(V3 1 mA – V3 0.5 mA) / (1 mA – 0.5 mA)
Vcontrol Latch–off
SUPPLY SECTION
Minimum Start–up Voltage
MC44608P40
10 x K1
2.4
2.9
3.8
–
MC44608P75
10 x K1
2.8
3.3
4.2
–
MC44608P100
10 x K1
103 x K2
102 x Ksstup
102 x Ksl
106 x Ycstby
Dmgr
3.5
–
46
52
63
–
1.8
2.2
2.6
–
90
120
150
–
175
198
225
–
3.0
4.7
5.5
–
R3
1800
V3
4.8
V
Vilow
Vstup–th
Vuvlo1
Hstup–uvlo1
Vuvlo2
Huvlo1–uvlo2
–(ICC)
50
V
VCC Start–up Voltage
Output Disabling VCC Voltage After Turn On
Hysteresis (Vstup–th – Vuvlo1)
VCC Undervoltage Lockout Voltage
Hysteresis (Vuvlo1 – Vuvlo2)
Absolute Normal Condition VCC Start Current @ (Vi = 100 V) and
(VCC = 9 V)
Switching Phase Supply Current (no load)
12.5
13.1
13.8
V
9.5
10
10.5
V
3.1
V
6.2
6.6
7.0
V
3.4
V
7.0
9.5
12.8
mA
MC44608P40
MC44608P75
MC44608P100
ICCS
2.0
2.4
–
2.6
3.2
3.4
3.6
4.0
–
mA
Latched Off Phase Supply Current
ICC–latch
0.3
0.5
0.68
mA
Hiccup Mode Duty Cycle (no load)
Hiccup
10
%
NOTES:
(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 1 to GND.
(3) Guaranteed by design (non tested)
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| MC44608P75 | 功能描述:電壓模式 PWM 控制器 75KHz High Voltage RoHS:否 制造商:Texas Instruments 輸出端數量:1 拓撲結構:Buck 輸出電壓:34 V 輸出電流: 開關頻率: 工作電源電壓:4.5 V to 5.5 V 電源電流:600 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝 / 箱體:WSON-8 封裝:Reel |
| MC44608P75G | 功能描述:電壓模式 PWM 控制器 75KHz High Voltage SMPS PWM RoHS:否 制造商:Texas Instruments 輸出端數量:1 拓撲結構:Buck 輸出電壓:34 V 輸出電流: 開關頻率: 工作電源電壓:4.5 V to 5.5 V 電源電流:600 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝 / 箱體:WSON-8 封裝:Reel |
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