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NTE7147 Integrated Circuit Full Bridge Current Driven Vertical Deflection Booster
Description: The NTE7147 is a power amplifier in a 9-Lead SIP type package designed for use in 90 degree color vertical deflection systems for frame frequencies of 50Hz to 160Hz. This device provides a high CMRR current driven differential input. Due to the bridge configuration of the two output stages, DC- coupling of the deflection coil is achieved. Features: D Pre-Amplifier with Differential High CMRR Current Mode Inputs D Low Offsets D High Linear Sawtooth Signal Amplification D High Efficient DC-Coupled Vertical Output Bridge Circuit D Powerless Vertical Shift D High Deflection Frequency up to 160Hz D Power Supply and Flyback Supply Voltage Independent Adjustable to Optimize Power Consumption and Flyback Time D Excellent Transition Behaviour Duriing Flyback D Guard Circuit for Screen Protection Absolute Maximum Ratings: (Voltage referenced to Pin5 (GND) unless otherwise specified) Supply Voltage (Pin3), VP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30V Flyback Supply Voltage (Pin7), VFB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60V Flyback Supply Current, IFB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.8A Input Voltage, V1, V2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 to VP V Input Current, I1, I2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 to 5mA Output Voltage, V4, V6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 to VP V Output Current (Note 1), I4, I6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 to 1.8A Feedback Voltage, V9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 to VP V Feedback Current, I9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 to 5mA Guard Voltage (Note 2), V8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 to VP+0.4V Guard Current, I8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 to 5mA Operating Junction Temperature Range (Note 3), TJ . . . . . . . . . . . . . . . . . . . . . . . . . . -20 to +150C Ambient Temperature Range, TA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -20 to +75C Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -20 to +150C Thermal Resistance, Junction-to-Mounting Base, RthJ-MB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4K/W Electrostatic Handling Voltage (Note 4), Ves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -500V to +500V Note Note Note Note 1. 2. 3. 4. Maximum output currents I4 and I6 are limited by current protection. For VP > 13V, the guard voltage V8 is limited to 13V. Internally limited by thermal protection; switching point +150C. Equivalent to discharging a 200pF capacitor through a 0 series resistor,
Electrical Characteristics: (VP = 15V, TA = +25C, VFB = 40V, voltage referenced to Pin5 (GND) unless otherwise specified)
Parameter Supply Voltage (Pin3) Flyback Supply Voltage (Pin7) Quiescent Feedback Current (Pin7) Input Stage Differential Input Current (Iid = I1 - I2) (Peak-to-Peak Value) Single Ended Input Current (Peak-to-Peak Value) Common Mode Rejection Ratio Input Clamp Voltage Iid(p-p) I1,2(p-p) CMRR V1 V2 Input Clamp Signal TC on Pin1 Input Clamp Signal TC on Pin2 Differential Input Voltage Feedback Current Feedback Voltage Differential Input Offset Current (Iid(offset) = I1 - I2) Input Capacity Pin1 Reference to GND Input Capacity Pin2 Reference to GND Output Stages A and B Output Current Output A Saturation Voltage to GND I4, I6 V6 V6,3 V4 V4,3 LE I6 = 0.7A I6 = 1.0A Output A Saturation Voltage to VP Output B Saturation Voltage to GND I6 = 0.7A I6 = 1.0A I4 = 0.7A I4 = 1.0A Output B Saturation Voltage to VP Linearity Error I4 = 0.7A I4 = 1.0A Idefl = 0.7A, Note 8 - - - - - - - - - - - 1.3 1.6 2.3 2.7 1.3 1.6 1.0 1.3 - 1 1.5 1.8 2.9 3.3 1.5 1.8 1.6 1.9 2 A V V V V V V V V % TCi,1 TCi,2 V1 - V2 I9 V9 Iid(offset) Ci INA Ci INB Idefl = 0, Rref = 1.5k, Rm = 1 Iid = 0 Note 6 Note 7 I1 = 300A I2 = 300A - 0 - 2.7 2.7 0 0 0 - 1 0 - - 500 300 -54 3.0 3.0 - - - 500 - - - - 600 600 - 3.3 3.3 800 800 10 600 VP-1 20 5 5 A A dB V V V/K V/K mV A V A pF pF Symbol VP VFB IFB Note 5 No Load, No Signal Test Conditions Min 8.2 VP+6 - Typ - - 7 Max 25 60 10 Unit V V mA
Note 5. Up to 60V VFB 40V a decoupling capacitor CFB = 22(between Pin7 and Pin5) and a resistor RFB = 100 (between Pin7 and VFB) are required. Note 6. Saturation voltages of output stages A and B can be increased in the event of negative input currents I1,2 < -500A. Note 7. Di = Ideflc I x id with Ideflc = common mode deflection current and Iidc = common mode Iidc Idefl input current.
Note 8. Deviation of the output slope at a constant input slope.
Electrical Characteristics (Cont'd): (VP = 15V, TA = +25C, VFB = 40V, voltage referenced to Pin5 (GND) unless otherwise specified)
Parameter Output Stages A and B (Cont'd) DC Output Voltage Open-Loop Current Gain (I4, 6/Iid) Open-Loop Current Gain (I4, 6/I9) Current Ratio (Iid/I9) Output Ripple Current as a Function of Supply Ripple Flyback Generator Voltage Drop During Flyback Reverse Forward V7, 6 Idefl = 0.7A
defl defl defl
Symbol
Test Conditions
Min
Typ
Max
Unit
V4, V6 Goi Gofb Gifb
Iid = 0A, Closed-Loop I4, 6 < 100mA, Note 9 I4, 6 < 100mA, Note 9 Closed-Loop
6.6 - - - -
7.2 100 100 -0.2 1
7.8 - - - -
V dB dB dB mA
Idefl(ripple) VP(ripple) = 0.5V, Iid = 0, Closed-Loop
- - - - VP-1 Vp-1.5 -
-2.0 -2.3 +5.6 +5.9 - - -
-3.0 -3.5 +6.1 +6.5 VP+1.5 VP+1 1 10 VP-0.4 0.4 - 1.5 13 VP+0.3
V V V V V V A
= 1.0A = 0.7A = 1.0A
Switching On Threshold Voltage Switching Off Threshold Voltagte Flyback Current During Flyback Guard Circuit Output Voltage
V6 V6 I7 V8 Guard On Guard On, VP = 8.2V Guard Off
7.5 6.9 - 5 0.5 0
8.5 - - - 1.0 - -
V V V mA mA V V
Output Current
I8 V8(ext.)
Guard On Guard Off, V8 = 5V
Allowable External Voltage on Pin8
VP 13V
0
Note 9. Frequency behaviour of Goi and Gofb. a) -3dB open-loop bandwidth (-45) at 15kHz; second pole (-135) at 1.3MHz. b) Open-loop gain at second pole (-135) 55dB.
Pin Connection Diagram (Front View)
9 8 7 6 5 4 3 2 1
Feedback Input Guard Output Flyback Supply Voltage Output A GND Output B VP Input B Input A
.945 (24.0) Max .788 (20.0) Max .130 (3.25) R .173 (4.4)
Seating Plane
.472 (12.0)
1
9
.079 (2.0)
.663 (16.85)
.100 (2.54)
.017 (0.43)

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