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NCP1052

Monolithic High Voltage Gated Oscillator Power Switching Regulator

ON Semiconductor 

NCP1050, NCP1051, NCP1052, NCP1053, NCP1054, NCP1055

ELECTRICAL CHARACTERISTICS (VCC = 8.0 V, for typical values TJ = 25°C, for min/max values, TJ is the operating junction

temperature range that applies (Note 1), unless otherwise noted.)

Characteristics

Symbol

Min

Typ

Max

Unit

OSCILLATOR

Frequency (VCC = 7.5 V)

TJ = 25°C:

44 kHz Version

100 kHz Version

136 kHz Version

TJ = Tlow to Thigh

44 kHz Version

100 kHz Version

136 kHz Version

fOSC(low)

kHz

38

42.5

47

87

97

107

119

132

145

37

−

47

84

−

107

113

−

145

Frequency (VCC = 8.5 V)

TJ = 25°C:

44 kHz Version

100 kHz Version

136 kHz Version

TJ = Tlow to Thigh

44 kHz Version

100 kHz Version

136 kHz Version

fOSC(high)

kHz

41

45.5

50

93

103

113

126

140

154

39

−

50

90

−

113

120

−

154

Frequency Sweep (VCC = 7.5 V to 8.5 V, TJ = 25°C)

Maximum Duty Cycle

%fOSC

−

5.0

−

%

D(max)

74

77

80

%

CONTROL INPUT

Lower Window Input Current Threshold

Switching Enabled, Sink Current Increasing

Switching Disabled, Sink Current Decreasing

Upper Window Input Current Threshold

Switching Enabled, Source Current Increasing

Switching Disabled, Source Current Decreasing

Control Window Input Voltage

Lower (Isink = 25 mA)

Upper (Isource = 25 mA)

1. Tested junction temperature range for the NCP105X series:

Tlow = −40°C

Thigh = +125°C

mA

Ioff(low)

Ion(low)

−58 −47.5 −37

−50 −37.5 −25

Ioff(high)

Ion(high)

37

47.5

58

25

37.5

50

V

Vlow

Vhigh

1.1

1.35

1.6

4.2

4.6

5.0

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