NTE7156 View Datasheet(PDF) - NTE Electronics

Part Name

Description

Manufacturer

NTE7156

Integrated Circuit DC–Coupled Vertical Deflection Circuit

NTE Electronics 

NTE7156

Integrated Circuit

DC–Coupled Vertical Deflection Circuit

Description:

The NTE7156 is a power circuit in a 9–Lead SIP type package designed for use in 90° and 110° color

deflection systems for field frequencies of 50Hz to 120Hz. This device provides a DC driven vertical

deflection output circuit, operating as a highly efficient class G system.

Features:

D Few External Components

D Highly Efficient Fully DC–Coupled Vertical Output Bridge Circuit

D Vertical Flyback Switch

D Guard Circuit

D Protection Aaginst:

– Short–Circuit of the Output Pins (7 and 4)

– Short–Circuit of the Output Pins to VP

D Temperature Protection

D High EMC Immunity Because of Common Mode Inputs

D A Guard Signal in Zoom Mode

Absolute Maximum Ratings:

DC Supply

Supply Voltage, VP

Non–Operating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40V

Operating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25V

Flyback Supply Voltage, VFB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50V

Note 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60V

Vertical Circuit

Output Current (Peak–to–Peak Value, Note 2), IO(P–P) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3A

Output Voltage (Pin7), VO(A) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52V

Note 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62V

Flyback Switch

Peak Output Current, IM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±15A

Thermal Data

Virtual Junction Temperature, TVJ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +150°C

Operating Ambient Temperature Range, TA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –20° to +75°C

Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –55° to +150°C

Thermal Resistance, Virtual Junction–to–Ambient, RthVJ–C . . . . . . . . . . . . . . . . . . . . . . . . . . . 40K/W

Thermal Resistance, Virtual Junction–to–Case, RthVJ–A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4K/W

Short–Circuit Time (Note 3), tsc . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Hour

Note 1. A flyback supply voltage of > 50V up to 60V is allowed in application. A 22–nF capacititor

in series with a 22Ω resistor (depending on IO and the inductance of the coil) has to be con-

nected between Pin7 and GND. The decoupling capacitor of VFB has to be connected be-

tween Pin6 and Pin3. This supply voltage line must have a resistance of 33Ω.

Note 2. IO maximum determined by current protection.

Note 3. Up to VP = 18V.

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