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© System General Corp.  www.sg.com.tw  •  www.fairchildsemi.com  
Version 1.3.1 (IRO33.0028.B6) 

 

September 24, 2007 

Part Number 

Pb-Free 

Package 

SG6961SZ 

 

8-Pin SOP  

SG6961DZ 

 

8-Pin DIP  

Pin No. 

Symbol 

Description 

1 INV 

Inverting input of the error amplifier. INV is connected to the converter output via a resistive divider. This pin 
is also used for over-voltage clamping and open-loop feedback protection. 

2 COMP 

The output of the error amplifier. To create a precise clamping protection, a compensation network between 
this pin and GND is suggested. 

3 MOT 

A resistor from MOT to GND is used to determine the maximum on-time of the external power MOSFET. The 
maximum output power of the converter is a function of the maximum on-time. 

4 CS 

Input to the over-current protection comparator. When the sensed voltage across the sense resistor reaches 
the internal threshold (0.82V), the switch is turned off to activate cycle-by-cycle current limiting.  

5 ZCD 

Zero Current Detection. This pin is connected to an auxiliary winding via a resistor to detect the zero crossing 
of the switch current. When the zero crossing is detected, a new switching cycle is started. If it is connected 
to GND, the device is disabled. 

6 GND 

The power ground and signal ground. Placing a 0.1µF decoupling capacitor between the VCC

 

and GND pins 

is recommended. 

7 

GD 

Totem-pole driver output to drive the external power MOSFET. The clamped gate output voltage is 16.5V. 

8 

VCC 

Driver and control circuit supply voltage. 

T

: D=DIP, S=SOP

P : 

Z=Lead Free + ROHS 

Compatible 

     Null=regular package 

XXXXXXXX

: Wafer Lot 

Y

: Year; 

WW

: Week

 

V

: Assembly Location 

CS

MOT

VCC 

GD 

GND 

ZCD 

INV

COMP

SG6961TP

 

XXXXXXXXYWWV 

23

The AZ431-A series ICs are three-terminal adjustable
shunt regulators with guaranteed thermal stability over a
full operation range. These ICs feature sharp turn-on char-
acteristics, low temperature coefficient and low output
impedance, which make them ideal substitutes for Zener
diodes in applications such as switching power supply,
charger and other adjustable regulators.
 
The AZ431-A series ICs are of 40V voltage type. Its out-
put voltage can be set to any value between V

REF

(2.5V)

and 36V. 

The AZ431-A precision reference is offered in two band-
gap tolerance: 0.4% and 0.8%.

· Programmable Precise Output Voltage from 2.5V to

36V

· Very Accurate Reference Voltage: 0.15% Typical 
· High Stability under Capacitive Load
· Low Temperature Deviation: 4.5mV Typical
· Low Equivalent Full-range Temperature Coefficient

with 20PPM/

o

C Typical

· Low Dynamic Output Resistance: 0.2Ω Typical
· Sink Current Capacity from 1mA to 100 mA
· Low Output Noise
· Wide Operating Range of -40 to 125

o

C

· Charger
· Voltage Adapter
· Switching Power Supply
· Graphic Card
· Precision Voltage Reference

· Easier to Stabilize
· Ultra Low Temperature Coefficient
· Higher V

REF

 Accuracy

· Wider Operating Temperature Range
· Very Competitive Price

AZ431A-A

AZ431B-A

I

KA

 (Max) (mA)

100

100

I

KA

 (Min) (mA)

0.4

0.4

V

OUT

 / V

REF

 Initial 

Tol. (%)

0.4

0.8

V

OUT

 (Max) (V)

36

36

V

OUT

 (Min) (V)

2.5

2.5

Z

KA

 (Typ) (

Ω)

0.15

0.15

Temp Coeff. (Typ) 

(PPM/

o

C

)

20

20

Operating Temperature 

(Min) (

o

C

)

-40

-40

Operating Temperature 

(Max) (

o

C

)

+125

+125

· Samples
· Datasheet
· Reliability Report
· ESD Report

Nov. 2004

  BCD Semiconductor Manufacturing Limited

                Product Brief

SOT-23-3

SOT-89

ANODE

REF

CATHODE

REF

ANODE CATHODE

1

2

3

1

2

3

24

SLOS080D – SEPTEMBER 1978 – REVISED AUGUST 1996

1

POST OFFICE BOX 655303 

•

 DALLAS, TEXAS 75265

D

D

D

D

D

D

√

D

D

D

D

µ

D

     

The JFET-input operational amplifiers in the TL07_ series are designed as low-noise versions of the TL08_
series amplifiers with low input bias and offset currents and fast slew rate. The low harmonic distortion and low
noise make the TL07_ series ideally suited for high-fidelity and audio preamplifier applications. Each amplifier
features JFET inputs (for high input impedance) coupled with bipolar output stages integrated on a single
monolithic chip.

The C-suffix devices are characterized for operation from 0

°

C to 70

°

C. The I-suffix devices are characterized

for operation from – 40

°

C to 85

°

C. The M-suffix devices are characterized for operation over the full military

temperature range of  – 55

°

C to 125

°

C.

°

10 mV

TL071CD

TL071CP

TL071CPWLE

10 mV

6 mV

TL071CD
TL071ACD

—

—

—

—

TL071CP
TL071ACP

TL071CPWLE

—

—

3 mV

TL071BCD

TL071BCP

—

0

°

C to

10 mV

TL072CD

TL072CP

TL072CPWLE

0

°

C to

70

°

C

10 mV

6 mV

TL072CD
TL072ACD

—

—

—

—

TL072CP
TL072ACP

TL072CPWLE

—

—

70

°

C

3 mV

TL072BCD

TL072BCP

—

10 mV

TL074CD

TL074CN

TL074CPWLE

10 mV

6 mV

TL074CD
TL074ACD

—

—

—

TL074CN
TL074ACN

—

TL074CPWLE

—

—

3 mV

TL074BCD

TL074BCN

—

40

°

C to

TL071ID

—

TL071IP

– 40

°

C to

85

°

C

6 mV

TL071ID
TL072ID

—

—

—

—

TL071IP
TL072IP

—

—

85

°

C

TL074ID

TL074IN

—

55

°

C to

6 mV

TL071MFK

—

TL071MJG

—

—

—

– 55

°

C to

125

°

C

6 mV

—

TL072MFK

—

TL072MJG

—

TL072MP

—

—

125 C

9 mV

TL074MFK

TL074MJ

—

TL074MN

—

TL074MW

† The D package is available taped and reeled. Add the suffix R to the device type (e.g., TL071CDR). The PW package is only available left-ended

taped and reeled (e.g., TL072CPWLE).

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

Copyright 



 1996, Texas Instruments Incorporated

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