NTE7147.pdf 데이터시트 (총 4 페이지) - 파일 다운로드 NTE7147 데이타시트 다운로드

No Preview Available !

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 +150°C
Ambient Temperature Range, TA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –20° to +75°C
Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –20° to +150°C
Thermal Resistance, Junction–to–Mounting Base, RthJ–MB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4K/W
Electrostatic Handling Voltage (Note 4), Ves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –500V to +500V
Note 1. Maximum output currents I4 and I6 are limited by current protection.
Note 2. For VP > 13V, the guard voltage V8 is limited to 13V.
Note 3. Internally limited by thermal protection; switching point +150°C.
Note 4. Equivalent to discharging a 200pF capacitor through a 0series resistor,

No Preview Available !

Electrical Characteristics: (VP = 15V, TA = +25°C, VFB = 40V, voltage referenced to Pin5 (GND)
unless otherwise specified)
Parameter
Symbol
Test Conditions
Min Typ Max Unit
Supply Voltage (Pin3)
Flyback Supply Voltage (Pin7)
Quiescent Feedback Current (Pin7)
Input Stage
VP
VFB Note 5
IFB No Load, No Signal
8.2
VP+6
7
25 V
60 V
10 mA
Differential Input Current (Iid = I1 I2)
(PeaktoPeak Value)
Iid(pp)
±500 ±600 µA
Single Ended Input Current
(PeaktoPeak Value)
I1,2(pp) Note 6
0 ±300 ±600 µA
Common Mode Rejection Ratio
CMRR Note 7
– –54 dB
Input Clamp Voltage
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
V1
V2
TCi,1
TCi,2
V1 V2
I9
V9
Iid(offset)
I1 = 300µA
I2 = 300µA
Iid = 0
Idefl = 0, Rref = 1.5k, Rm = 1
Ci INA
Ci INB
2.7 3.0 3.3
V
2.7 3.0 3.3
V
0 ±800 µV/K
0 ±800 µV/K
0 ±10 mV
±500 ±600 µA
1 VP1 V
0 ±20 µA
– – 5 pF
– – 5 pF
Output Current
Output A Saturation Voltage to GND
Output A Saturation Voltage to VP
Output B Saturation Voltage to GND
Output B Saturation Voltage to VP
Linearity Error
I4, I6
V6
V6,3
V4
V4,3
LE
I6 = 0.7A
I6 = 1.0A
I6 = 0.7A
I6 = 1.0A
I4 = 0.7A
I4 = 1.0A
I4 = 0.7A
I4 = 1.0A
Idefl = ±0.7A, Note 8
– – ±1 A
1.3 1.5 V
1.6 1.8 V
2.3 2.9 V
2.7 3.3 V
1.3 1.5 V
1.6 1.8 V
1.0 1.6 V
1.3 1.9 V
– – 2%
Note 5. Up to 60V VFB 40V a decoupling capacitor CFB = 22µ(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 < 500µA.
Note
7.
Di =
Ideflc
Iidc
x
Iid
Idefl
with Ideflc = common mode deflection current and Iidc = common mode
input current.
Note 8. Deviation of the output slope at a constant input slope.

No Preview Available !

Electrical Characteristics (Cont’d): (VP = 15V, TA = +25°C, VFB = 40V, voltage referenced to
Pin5 (GND) unless otherwise specified)
Parameter
Symbol
Test Conditions
Min Typ Max Unit
Output Stages A and B (Cont’d)
DC Output Voltage
OpenLoop Current Gain (I4, 6/Iid)
OpenLoop Current Gain (I4, 6/I9)
Current Ratio (Iid/I9)
Output Ripple Current as a Function
of Supply Ripple
V4, V6
Goi
Gofb
Gifb
Idefl(ripple)
Iid = 0A, ClosedLoop
I4, 6 < 100mA, Note 9
I4, 6 < 100mA, Note 9
ClosedLoop
VP(ripple) = ±0.5V, Iid = 0,
ClosedLoop
6.6 7.2 7.8
V
100 dB
100 dB
– –0.2
dB
±1 mA
Flyback Generator
Voltage Drop During Flyback
Reverse
Forward
Switching On Threshold Voltage
Switching Off Threshold Voltagte
Flyback Current During Flyback
Guard Circuit
V7, 6
V6
V6
I7
Idefl = 0.7A
defl = 1.0A
defl = 0.7A
defl = 1.0A
– –2.0 3.0
– –2.3 3.5
+5.6 +6.1
+5.9 +6.5
VP1 VP+1.5
Vp1.5 VP+1
– – ±1
V
V
V
V
V
V
A
Output Voltage
V8 Guard On
Guard On, VP = 8.2V
Guard Off
7.5 8.5 10
V
6.9 VP0.4 V
– – 0.4 V
Output Current
Allowable External Voltage on Pin8
I8
V8(ext.)
Guard On
Guard Off, V8 = 5V
VP 13V
5 – – mA
0.5 1.0 1.5 mA
0 13 V
0 VP+0.3 V
Note 9. Frequency behaviour of Goi and Gofb.
a) 3dB openloop bandwidth (45°) at 15kHz; second pole (135°) at 1.3MHz.
b) Openloop gain at second pole (135°) 55dB.
Pin Connection Diagram
(Front View)
9 Feedback Input
8 Guard Output
7 Flyback Supply Voltage
6 Output A
5 GND
4 Output B
3 VP
2 Input B
1 Input A

No Preview Available !

.945 (24.0) Max
.788 (20.0) Max
.130 (3.25) R
.173 (4.4)
1
.100 (2.54)
.472
(12.0)
9
.079
(2.0)
.663
(16.85)
.017 (0.43)