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NTE7156 Datasheet, PDF (1/4 Pages) NTE Electronics – Integrated Circuit DC-Coupled Vertical Deflection Circuit | |||
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NTE7156
Integrated Circuit
DCâCoupled Vertical Deflection Circuit
Description:
The NTE7156 is a power circuit in a 9âLead 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 DCâCoupled Vertical Output Bridge Circuit
D Vertical Flyback Switch
D Guard Circuit
D Protection Aaginst:
â ShortâCircuit of the Output Pins (7 and 4)
â ShortâCircuit 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
NonâOperating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40V
Operating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25V
Flyback Supply Voltage, VFB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50V
Note 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60V
Vertical Circuit
Output Current (PeakâtoâPeak Value, Note 2), IO(PâP) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . â20° to +75°C
Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . â55° to +150°C
Thermal Resistance, Virtual JunctionâtoâAmbient, RthVJâC . . . . . . . . . . . . . . . . . . . . . . . . . . . 40K/W
Thermal Resistance, Virtual JunctionâtoâCase, RthVJâA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4K/W
ShortâCircuit Time (Note 3), tsc . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Hour
Note 1. A flyback supply voltage of > 50V up to 60V is allowed in application. A 22ânF capacititor
in series with a 22⦠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 33â¦.
Note 2. IO maximum determined by current protection.
Note 3. Up to VP = 18V.
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