AN5757S

AN5757S PANASONIC

Document overview

• Manufacturer or author: Provided By digicamel.com
• PDF pages: 8

Technical content

CRT horizontal deflection voltage control IC n Overview The AN5757S is an IC for PWM-system CRT horizontal deflection voltage control. It can be used for horizontal frequency from 20 kHz to 140 kHz and applicable from a popular type monitor to high precision monitor. Its SO-16-pin package enables the users to desigh the sets simple and efficient. n Features

• PWM output
• Built-in thermal protection circuit (cut off both upper and lower push-pull output transistor)
• Soft start function
• Built-in error amp. n Applications
• CRT monitors SOP016-P-0225A Unit: mm n Block Diagram 0.3 (0° to 10°) (0.15) 10.1±0.3 4.2±0.3 6.5±0.3 16 9 1.27(0.605) Seating plane Seating plane 0.40±0.25 0.1±0.1 1.5±0.2 GND2 HD in N.C. GND1 SW1 N.C. Control V CC1 V CC2 V CC1 SW2 Sync. inGND2 V CC2 Duty adjustment DTC Ramp generator

Parameter Symbol Range Unit Supply voltage V CC1 , VCC2 11.0 to 13.0 V HD input V 3 0 to V10 V SW1 input V I15 0 to V10 V SW2 input V I9 0 to V10 V Max. duty adjustment voltage V 5 0 to 6 V Error amp. positive input V 11 0 to 6 V Error amp. negative input V 12 0 to 6 V Max. output current of PWM output I 1(max) -150 to +150 mA n Recommended Operating Range n Pin Descriptions Parameter Symbol Rating Unit Supply voltage V CC1 13.2 V V CC2 13.2 Supply current I CC1 6.3 mA ICC2 15.0 Output current I 1 –150 mA Power dissipation *2 PD 198 mW Operating ambient temperature *1 T opr -20 to +70 °C Storage temperature *1 Tstg -55 to +125 °C n Absolute Maximum Ratings Note) *1: Except for the power dissipation, operating ambient temperature, and storage temperature, all ratings are for Ta = 25°C. *2: The power dissipation shown is for the IC package in free air at Ta = 70°C. Pin No. Description

1 PWM output

2 Power supply for output (V CC2 )

3 Horizontal synchronous input (HD in)

4 Duty adjustment (capacitor)

5 Duty adjustment (resistor)

6N . C .

7 GND1

8N . C . Pin No. Description

9 On/off SW input2 (SW2)

10 Power supply (V CC1 )

11 IN +

12 IN -

14 Capacitor for DTC

15 On/off SW input1 (SW1)

16 GND2

Note) '+' denotes current flowing into the IC, and '-' denotes current flowing out of the IC. tIN tOUT 5 V 0 V 11.6 V 0.2 V HD input Minimum width (tOUT min ) of the tOUT can be adjusted at pin 5. Use it to get t OUT min < tIN Output stops at tOUT min ‡ tIN PWM output

n Electrical Characteristics at Ta = 25°C Parameter Symbol Conditions Min Typ Max Unit Power supply current I CC1 V CC = 12 V, V9, 15 = 5 V, 2.0 4.0 6.0 mA V 3 = 5 V, V11 = 0 V Power supply current for output ICC2 V CC = 12 V, V9, 15 = 5 V, 6.0 10.0 14.0 mA V 3 = 5 V, V11 = 0 V Duty Pin voltage of duty adjustment V5-7 V CC = 12 V, 2.0 3.0 4.0 V resistor pin V 3 = 0 V Pin current (for discharge) of duty 14D V CC = 12 V, 3.0 ¾¾ mA adjustment capacitor pin V 3 = 0 V, V4 = 1 V Pin current (for charge) of duty 14C V CC = 12 V, -60 -45 -30 mA adjustment capacitor pin V 3 = 5 V, V4 = 1 V High-level of duty adjustment V4-7H V CC = 12 V, 3.2 3.7 4.2 V capacitor pin V 3 = 5 V Low-level of duty adjustment V4-7L V CC = 12 V, 0 ¾ 0.15 V capacitor pin V 3 = 0 V DTC SW2 pin current H I 9H V CC = 12 V, V3 = 5 V, 200 300 400 mA V 9 = 12 V SW2 pin current M I 9M V CC = 12 V, V3 = 5 V, 45 70 95 mA V 9 = 5 V SW2 pin current L I 9L V CC = 12 V, V3 = 5 V, -5 ¾ 0 mA V 9 = 0 V SW1 pin current H I 15H V CC = 12 V, V3 = 5 V, 200 300 400 mA V 15 = 12 V SW1 pin current M I 15M V CC = 12 V, V3 = 5 V, 45 70 95 mA V 15 = 5 V SW1 pin current L I 15L V CC = 12 V, V3 = 5 V, -5 ¾ 0 mA V 15 = 0 V Pin current (discharge) of DTC I14D V CC = 12 V, V14 = 5 V, 60 90 120 mA capacitor pin V 9, 15 = 12 V Pin current (charge) of DTC I 14C V CC = 12 V, V14 = 10 V, -15 -8 -1m A capacitor pin V 9, 15 = 0 V High-level of DTC capacitor pin V14-7H V CC = 12 V, 11.5 ¾¾ V V 9, 15 = 0 V Low-level of DTC capacitor pin V14-7L V CC = 12 V, 0 ¾ 0.15 V V 9, 15 = 12 V

n Electrical Characteristics at Ta = 25°C (continued) Parameter Symbol Conditions Min Typ Max Unit PWM output High-level of PWM output pin V1-16H1 V CC = 12 V, V3 = 0 V, 11.0 ¾¾ V (no load) pin 1: Open Low-level of PWM output pin V1-16L1 V CC = 12 V, V3 = 5 V, 0 ¾ 1.0 V (no load) pin 1: Open High-level of PWM output pin V1-16H2 V CC = 12 V, V3 = 0 V, 8.0 10.0 11.5 V (with load) I 1 = -150 mA Low-level of PWM output pin V1-16L2 V CC = 12 V, V3 = 5 V, 0.5 1.5 2.5 V (with load) I 1 = +150 mA

• Design reference data Note) The characteristics listed below are theoretical values based on the IC design and are not guaranteed. Parameter Symbol Conditions Min Typ Max Unit HD input frequency f 3 V CC = 12 V, 20 ¾ 140 kHz V 9, 15 = 12 V, V11 = 0 V HD input threshold value V 3TH V CC = 12 V, 0.6 1 1.4 V V 9, 15 = 12 V, V11 = 0 V Open gain of error amp. A V CC = 12 V ¾ 80 ¾ dB Current capability of PWM I 1 V CC = 12 V -150 ¾+ 150 mA output pin Operation start voltage V 10-7N V 11 = 0 V, V3 = 5 V 8.1 8.5 8.9 V Operation stop voltage V 10-7F V 11 = 0 V, V3 = 5 V 6.1 6.5 6.9 V SW1 threshold value V S15 V CC = 12 V, V11 = 0 V, 1.1 1.5 1.9 V V 3 = 5 V SW2 threshold value V S9 V CC = 12 V, V11 = 0 V, 1.1 1.5 1.9 V V 3 = 5 V Pin No. Equivalent circuit Description Waveform

1 PWM output:

2 Power supply for output: DC 12 V

Power supply for PWM output Apply DC 12 V. n Terminal Equivalent Circuits V CC1 V CC2 11 V 1 V V CC2

Pin No. Equivalent circuit Description Waveform

3 Horizontal synchronizing signal

input: Input pin of horizontal synchro- nizing signal Detection level is 1 V.

4 For duty adjustment (capacitor):

attaching a capacitor between the pin and GND. If capacitance is raised, duty becomes small.

5 Duty adjustment (resistor): DC

Duty can be adjusted by 0.5 V to 5.0 V variable attaching a resistor between the pin and GND. If resistance is lowered, duty becomes large. 6 ¾ N.C.: ¾ Pin for N.C.

7 GND1: 0 V

8 ¾ N.C.: ¾ Pin for N.C.

9 Switch input2 for on/off: Pin 9 Pin 1

On/off switch pin for PWM 0 V fi High (11 V) output 2 V or morefi Low (1 V) On at 2 V or more and off at 0 V. (Threshold level: 1.5 V)

10 Power supply: DC 12 V

Apply DC 12 V. n Terminal Equivalent Circuits (continued) V CC1V CC1 100 mA 20 kW 1 V 5 V 0 V 1 V V CC1 V CC1 50 mA 20 pF HD Pin 4 V CC1 V CC1 45 kW 15 kW V th V CC1 V CC1 1.5 V 2.2 V 50 mA 30 kW V CC1

Pin No. Equivalent circuit Description Waveform

11 IN +: ¾

Input pin for + side input pin for error amp.

12 IN -:

Input pin for - side input pin for error amp.

13 NF: ¾

Output pin for error amp.

14 Capacitor for DTC: ¾

Capacitor pin to determine a soft start time If capacitance is raised, time becomes long.

15 Switch input1 for on/off: Pin 15 Pin 1

On/off switch pin for PWM 0 V fi High (11 V) output. 2 V or morefi Low (1 V) On at 2 V or more and off at 0 V. (Threshold level: 1.5 V)

16 GND2 0 V

Pin for GND. n Terminal Equivalent Circuits (continued) V CC1 V CC1 50 mA Pin 11, 12 V CC1 V CC2 V CC1 V CC1V CC1 100 mA 10 kW 60 kW V CC1 V CC1 1.5 V 2.2 V 50 mA 30 kW

• Allowable mode of short-circuit between pins Short circuit allowable pins are marked with l symbol. It has been confirmed that a typical IC sample does not break down even if pins are short-circuitted for one second. It has been confirmed that a typical IC sample does not emitting smoke and fire even if pins are short-circuitted for ten seconds. This is not inspected for all ICs. The mark · shows that a breakdown may be caused if the pins are short-circuitted. Full care must be taken on using the IC. Pin No. 123456789 1 0 1 1 1 2 1 3 1 4 1 5 1 6 l · lllllll · lllll llllllllllllll lllllllllllll llllllllllll lllllllllll llllllllll llllll · ll llllllll lllllll l · llll lllll llll lll ll l

n Application Circuit Example Note) When both of the pin 4 and the pin 5 are open, minimum pulse width of PWM output is 2.0 ms. HD input 0 V 5 V PWM output 75 kW 10 kW B 1.82 kW 68 kW 2.7 kW 5 kW 50 pF 0.1 mF 0.047 mF 47 mF 12 V 33 W 33 nF 10 kW 190 V P-ch. To +B Sync. inGND2 V CC2 Duty adjustment DTC Ramp generator