S6520 AUK | Alldatasheet

Document overview

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Technical content

Features

  • Complete Dual PWM Power Control Circuitry
  • Internal Soft Start for Soft Lamp lgnition
  • Enable Function to lock the output off until Out Signal is Operational
  • Analog Dimming Function
  • Internal Stable 5V Reference Supply
  • Open Lamp Protection
  • Internal Short Circuit Protection

Ordering Information

Type NO. Marking Package Code S6520 S6520 SOP-16 O u t l i n e D i m e n s i o n s u n i t : mm SSeemmiiccoonndduuccttoorr

Pin Number Symbol I/O Pin Function Description

1 CT1 I Frequency Trimming Capac itor for Main Frequency Setting 1

2 SS I Initial Soft Start

3 OLR1 I Open Lamp Regulation 1

4 FB1 I Feedback 1 (Error Amplifier Negative Input)

5 CMP1 - Error Amplifier Output 1

6 ENA I ON/OFF Control Pin. TTL Signal is Applicable.

7 OUT1 O Output Drive1

8 GND - Ground

9 VCC I Supply V oltage

10 OUT2 O Output Drive 2

11 ADIM - Analog Dimming Input

12 CMP2 - Error Amplifier Output 2

13 FB2 I Feedback 2 (Error Amplifier Negative Input)

14 OLR2 I Open Lamp Regulation 2

15 CT2 I Frequency Trimming Capac itor for Main Frequency Setting 2

16 REF O Reference V oltage (VREF) = 5V

1.4V ena 6 Enable Switch Vcc9 Ct1 1 Ct2 15 Vref Oscillator1 FB1 4 ADIM 11 CMP1 5 Comparator 1 7V Vz Vref Amplifier 1 OUT2 Short Circuit Protection GND 8 Shut Down Signal to Output Output 2 n*Vref OLR13 OLR214 FB2 13 Amplifier 2 CMP2 12 SS 2 Comparator 2 Vref reset signal from bias SQ R iss Vref Oscillator2 from FB1 from FB2 Vref regulation signal to COMP1, COMP2 Open Lamp Regulation REF16 delay timer 10us PIN Collection

CHARACTERISTICS SYMBOL V ALUE UNITS Supply V oltage V CC 22 V Power Dissipation P D 1 W Operating Temperature T OPR -25~+85 Storage Temperature T STG -40~+125

Electrical Characteristics

Ta=25℃, VCC = 10V , unless otherwise specified. Characteristic Symbol Test Condition Min. Typ. Max. Unit REFERENCE SECTION Reference V oltage V ref - 4.925 5.0 5.075 V Line Regulation △Vref. LINE 8 ≤Vcc≤20 - 2.0 25 mV Load Regulation △Vref. LOAD 0mA ≤Iref≤5mA - 1.0 15 mV Temperature Coefficient (note 1) △Vref/△T -25 ℃≤Ta≤85℃ - 0.01 - %/℃ ERROR AMPLIFIER SECTION (EA1, EA2) Inverting Reference V oltage V ref(EA) - 2.4 2.5 2.6 V Input Bias Current I B(EA) V CMP=2.5V - -0.1 -1.0 uA Output Sink Current I SINK V CMP=2.5V 0.3 2 - mA Output Source Current I SOURCE V CMP=2.5V -0.3 -2 - mA Dimming Input V oltage Range V DIM - 0 - 2.5 V SOFT START SECTION Initial Soft Start Current I SS - 7.5 12.5 17 uA Soft Start Limit V oltage V SSL - 4.1 4.7 5.3 V PROTECTION SECTION (SCP1, SCP2 & OLR1, OLR2) SCP Threshold V oltage V SCP - 2.55 2.7 2.85 V OLR Threshold V oltage V OLR - 2.35 2.5 2.65 V On/Off Threshold V oltage V ENA - 1.1 1.4 1.7 V OSCILLATOR SECTION (OSC1, OSC2) Oscillator Frequency F O R t=50k, Ct=680pF 45 50 55 kHz

Electrical Characteristics(Continued) Ta=25℃, VCC = 10V , unless otherwise specified. Characteristic Symbol Test Condition Min. Typ. Max. Unit OUTPUT SECTION (OUT1, OUT2) P-CH Output High V oltage V POH I SINK=10mA Vcc- 0.9 Vcc- 0.7 Vcc- 0.4 V P-CH Output Low V oltage V POL I SOURCE=10mA Vcc- 7.5 Vcc- 6.0 Vcc- 4.5 V Output Rising Time (Note1) t R C OUT=0.5nF - 200 300 nsec Output Falling Time (Note1) t F C OUT=0.5nF - 100 200 nsec START SECTION Stand by Current 8V I SB8 - - 10 30 uA Stand by Current 20V I SB20 - - 20 60 uA Operating Current I CC - - 4 6 mA * Note 1. These parameters, although guaranteed, are not 100% tested in production

Electrical Characteristic Curves Fig. 1 V CC - ISB Fig. 3 V CC - Vref Fig. 4 V ref(EA) - VCMP Fig. 2 V CC - ICC Fig. 7 V SCP - VOUT Fig. 8 V ENA - ICC Fig. 2 V CC - ICC

These AUK products are intended for usage in general electronic equipments(Office and communication equipment, measuring equipment, domestic electrification, etc.). Please make sure that you consult with us before you use these AUK products in equipm- ents which require high quality and/or reliabi lity, and in equipments which could have major impact to the welfare of human life(atomic energy control, airplane, spaceship, traffic signal, combustion central, all types of safety device, etc.). AUK cannot accept liability to any damage which may occur in case these AUK products were used in the mentioned equipments without prior consultation with AUK.