NCP1054P44 ON Semiconductor, NCP1054P44 Datasheet - Page 2

• Manufacturer Part Number: NCP1054P44
• Description: Other Power Management 700V 530mA Switching
• Manufacturer: ON Semiconductor
• Type: Monolithic High Voltage Regulatorsr

Specifications of NCP1054P44

• Input Voltage Range: - 0.3 V to + 10 V
• Operating Temperature Range: - 40 C to + 150 C
• Mounting Style: Through Hole
• Package / Case: PDIP-8
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Pin Function Description
(SOT−223)
Pin
1
2
4
−
3
Control Input
(PDIP−8)
3, 7, 8
Pin
1
2
4
5
+
AC Line
Input
V
CC
1
2
No Connection
Power Switch
Control Input
Function
Ground
Drain
V
CC
Regulator Circuit
Startup & V
Fault Detector
Power Switch Circuit Output
Gating Logic
Oscillator &
This is the positive supply voltage input. During startup, power is supplied to this input
from Pin 5. When V
allowed to begin switching with 1.0 V hysteresis on the V
nected to this pin programs fault timing and frequency modulation rate.
The Power Switch Circuit is turned off when a current greater than approximately 50 mA
is drawn out of or applied to this pin. A 10 V clamp is built onto the chip to protect the
device from ESD damage or overvoltage conditions.
This pin is the control circuit and Power Switch Circuit ground. It is part of the integrated
circuit lead frame.
This pin is designed to directly drive the converter transformer primary, and internally
connects to Power Switch and Startup Circuit.
Figure 1. Typical Application
+
CC
http://onsemi.com
Ground
2
CC
reaches V
Snubber
Power
Switch
Circuit
3, 7−8
5
CC
(on), the Startup Circuit turns off and the output is
Description
+
CC
pin. The capacitance con-
Converter
DC Output
+
−