Datasheet SP784CT, SP782CP, SP782CT, SP784CP Datasheet (Sipex Corporation)

®

SP782/784

Programmable Charge Pump

■ +5V Only Low Power Voltage Conversion

■ Programmable Between ±5V or ±10V

■ Low Power Shutdown Mode

Applications

■ RS-232/RS-423 transceiver power supplies

■ LCD BIAS Generator

■ OP-Amp Power Supplies

DESCRIPTION...

The SP782 and SP784 are monolithic programmable voltage converters that produce a positive and negative voltage from a single supply. The SP782 and SP784 are programmable such that the charge pump outputs either a ±10V voltage or a ±5V voltage by control of two pins. Both products require four (4) charge pump capacitors to support the resulting output voltages. The charge pump architecture (U.S. 5,760,637) is fabricated using a low power BiCMOS process technology.

The SP782 and SP784 charge pumps can be powered from a single +5V supply. The low power consumption makes these charge pumps ideal for battery operated equipment. Both offer a shutdown feature that saves battery life. A system can essentially have four (4) different supply voltages from a single battery. Typical applications are handheld instruments, notebook and laptop computers, and data acquisition systems.

+5V

10µF

+

+5V

10µF

+

6

13

LATCH

14

C1+

1µF

1

C1–

SP782

12

C2+

5

C2+

1µF

3

C2–

GND

16

4

15

V

SD

CC

V

D0

D1

8

9

1µF

DD

11

SS

2

1µF

10µF

14

C1+

1

C1–

12

C2+ (b)

5

C2+ (a)

3

C2–

D0

9

D1

8

LATCH

6

SD

15

13

V

CC

SP784

GND

16

10µF

V

DD

11

V

SS

2

10µF

4

1

ABSOLUTE MAXIMUM RATINGS

These are stress ratings only and functional operation of the device at these ratings or any other above those indicated in the operation sections of the specifications below is not implied. Exposure to absolute maximum rating conditions for extended periods of time may affect reliability.

VCC...........................................................................+7V

VDD.........................................................................+11V

VSS.........................................................................–11V

Storage Temperature..........................-65˚C to +150˚C

Power Dissipation

Package Derating: 16-pin Plastic DIP

øJA....................................................62 °C/W

16-pin Plastic SOIC

øJA....................................................62 °C/W

16-pin Plastic DIP...........................1000mW

16-pin Plastic SOIC.........................1000mW

SP782 SPECIFICATIONS

Typical @ 25°C and VCC = VCC ± 5% unless otherwise noted.

MIN. TYP. MAX. UNITS CONDITIONS

SUPPLY CURRENT CHARGE PUMP CAPACITORS: 1µF

I

CC

Shutdown I

CC

POSITIVE CHARGE PUMP OUTPUT CHARGE PUMP CAPACITORS: 1µF

VDD (2xVCC Output) +9.5 +9.8 +10.0 Volts VCC = +5V, D0 = 0V, D1 = 0V

+8.0 +8.5 Volts VCC = +5V, D0 = 0V, D1 = 0V

VDD (VCC Output) +4.2 +4.5 +5.0 Volts VCC = +5V, D0 = VCC, D1 = V

+4.2 +4.5 Volts VCC = +5V, D0 = VCC, D1 = V

NEGATIVE CHARGE PUMP OUTPUT CHARGE PUMP CAPACITORS: 1µF

VSS (2xVCC Output) –9.5 –9.8 –10.0 Volts VCC = +5V, D0 = 0V, D1 = 0V

–8.0 –8.5 Volts VCC = +5V, D0 = 0V, D1 = 0V

VSS (–VCC Output) –4.2 –4.5 –5.0 Volts VCC = +5V, D0 = VCC, D1 = V

–4.0 –4.2 Volts VCC = +5V, D0 = VCC, D1 = V

OSCILLATOR FREQUENCY

f

OSC

3 8 mA VCC = +5V, RL = ∞, VO = 2xV 1 2 mA VCC = +5V, RL = ∞, VO = V

10 25 µAVCC = +5V, SD = V

CC

RL = ∞ RL = 1kΩ RL = ∞ RL = 1kΩ

300 kHz SD = 0V

CC

VOLTAGE CONVERSION EFFICIENCY

VDD(2X VCC Output) 95 98 % RL = ∞ VDD(2X VCC Output) 80 85 % RL = 1kΩ VSS(2X VCC Output) 85 90 % RL = ∞ VSS(2X VCC Output) 80 85 % RL = 1kΩ

POWER REQUIREMENTS

V

CC

+4.75 +5.25 Volts

ENVIRONMENTAL AND MECHANICAL

Operating Temperature Range 0 +70 °C Storage Temperature Range –65 +150 °C

2

ABSOLUTE MAXIMUM RATINGS

These are stress ratings only and functional operation of the device at these ratings or any other above those indicated in the operation sections of the specifications below is not implied. Exposure to absolute maximum rating conditions for extended periods of time may affect reliability.

VCC...........................................................................+7V

VDD.........................................................................+11V

VSS.........................................................................–11V

Storage Temperature..........................-65˚C to +150˚C

Power Dissipation

Package Derating: 16-pin Plastic DIP

øJA....................................................62 °C/W

16-pin Plastic SOIC

øJA....................................................62 °C/W

16-pin Plastic DIP...........................1000mW

16-pin Plastic SOIC.........................1000mW

SP784 SPECIFICATIONS

Typical @ 25°C and VCC = VCC ± 5% unless otherwise noted.

MIN. TYP. MAX. UNITS CONDITIONS

SUPPLY CURRENT CHARGE PUMP CAPACITORS: 10µF

I

CC

Shutdown I

CC

POSITIVE CHARGE PUMP OUTPUT CHARGE PUMP CAPACITORS: 10µF

VDD (2xVCC Output) +9.0 +9.8 +10.0 Volts VCC = +5V, D0 = 0V, D1 = 0V

+8.0 +9.5 Volts VCC = +5V, D0 = 0V, D1 = 0V

VDD (VCC Output) +4.5 +4.8 +5.0 Volts VCC = +5V, D0 = VCC, D1 = V

+4.2 +4.5 Volts VCC = +5V, D0 = VCC, D1 = V

NEGATIVE CHARGE PUMP OUTPUT CHARGE PUMP CAPACITORS: 10µF

VSS (2xVCC Output) –9.0 –9.8 –10.0 Volts VCC = +5V, D0 = 0V, D1 = 0V

–8.0 –9.5 Volts VCC = +5V, D0 = 0V, D1 = 0V

VSS (–VCC Output) –4.2 –4.5 –5.0 Volts VCC = +5V, D0 = VCC, D1 = V

–4.0 –4.2 Volts VCC = +5V, D0 = VCC, D1 = V

OSCILLATOR FREQUENCY

f

OSC

510 mAV 1 5 mA VCC = +5V, RL = ∞, VO = V

10 25 µAVCC = +5V, SD = V

= +5V, RL = ∞, VO = 2xV

CC

RL = ∞ RL = 1kΩ RL = ∞ RL = 1kΩ

300 kHz SD = 0V

CC

VOLTAGE CONVERSION EFFICIENCY

VDD (2X VCC Output) 90 98 % RL = ∞ VDD (2X VCC Output) 80 95 % RL = 1kΩ VSS (2X VCC Output) 90 98 % RL = ∞ VSS (2X VCC Output) 80 95 % RL = 1kΩ

POWER REQUIREMENTS

V

CC

+4.75 +5.25 Volts

ENVIRONMENTAL AND MECHANICAL

Operating Temperature Range 0 +70 °C Storage Temperature Range –65 +150 °C

3

AC CHARACTERISTICS*

(Typical @ 25°C and nominal supply voltages unless otherwise noted)

PARAMETER MIN. TYP. MAX. UNITS CONDITIONS SP782 POWER-UP DELAY TIME ±10V OUTPUT

t

; VDD Power On Delay 1000 µsRL = 1kΩ

DVDD

t

; VSS Power-On Delay 1000 µsRL = 1kΩ

DVSS

±5V OUTPUT

t

; VDD Power On Delay 10 µsRL = 1kΩ

DVDD

t

; VSS Power-On Delay 150 µsRL = 1kΩ

DVSS

SP782 OUTPUT DELAY TIME

t

; Switching Delay 1000 µsRL = 1kΩ

SD1

from ±10V to ±5V t

; Switching Delay 500 µsRL = 1kΩ

SD2

from ±5V to ±10V

SP784 POWER-UP DELAY TIME ±10V OUTPUT

t

; VDD Power On Delay 5 ms RL = 1kΩ

DVDD

t

; VSS Power-On Delay 5 ms RL = 1kΩ

DVSS

±5V OUTPUT

t

; VDD Power On Delay 10 µsRL = 1kΩ

DVDD

t

; VSS Power-On Delay 1000 µsRL = 1kΩ

DVSS

SP784 OUTPUT DELAY TIME

t

; Switching Delay 10 ms RL = 1kΩ

SD1

from ±10V to ±5V t

; Switching Delay 2 ms RL = 1kΩ

SD2

from ±5V to ±10V

* - Using the charge pump capacitor values specified in the previous pages for each device.

+10V

C

2

+

(a)

+5V

C

GND

2

GND GND

C

2

–

(b)

GND

C

–5V

2

–10V

Figure 1. Charge Pump Waveforms

4

+

–

40.00

SP782 VDD vs IDD D0 = D1 = 0V VCC = 5.00V T = +25OC

35.00

30.00

25.00

20.00

15.00

10.00

IDD(milliamps)

5.00

0.00

5.00

5.50

6.00

6.50 7.00

VDD(volts)

8.00 8.50 9.00 9.50 10.00

7.50

10uF Curve

1uF Curve

0.1uF Curve

0.00

-5.00

-10.00

-15.00

-20.00

-25.00

-30.00

ISS(milliamps)

-35.00

-40.00

-10.00

10.00

9.00

8.00

7.00

6.00

VDD (volts)

5.00

4.00 0

SP782 VSS vs ISS D0 = D1 = 0V VCC = 5.00V T = +25OC

10uF Curve

1uF Curve

0.1uF Curve

-9.50

-9.00

-8.50

-8.00

-7.50

-7.00

-6.50

-6.00

-5.50

VSS(volts)

SP782 LOAD vs VDD D0 = D1 = 0V VCC = 5.00V T = +25OC

VDD - 10uF VDD - 1uF VDD - 0.1uF

500

1000

1500

2000

2500

3000

3500 4000

4500

LOAD (ohms)

-5.00

5000

-4.00

SP782 LOAD vs VSS D0 = D1 = 0V VCC = 5.00V T = +25OC

-5.00

-6.00

-7.00

-8.00

VSS (volts)

-9.00

VSS - 10uF VSS - 1uF VSS - 0.1uF

-10.00 500

0

1000

1500

2000

2500

3000

3500 4000

4500

5000

LOAD(ohms)

5

SP782 VDD vs IDD D0 = D1 = 5V VCC = 5.00V T = +25OC

40.00

35.00

30.00

25.00

20.00

15.00

10.00

IDD(milliamps)

5.00

0.00

4.20

SP782 VSS vs ISS D0 = D1 = 5V VCC = 5.00V T = +25OC

0.00

-5.00

-10.00

-15.00

-20.00

-25.00

-30.00

ISS(milliamps)

-35.00

-40.00

-45.00

-4.40

4.25

-4.30

4.30

-4.20

4.35 4.40

-4.00

-4.10

VDD(volts)

-3.90

VSS(volts)

4.50 4.55 4.60 4.65

4.45

-3.80

-3.70

10uF Curve

1uF Curve

0.1uF Curve

10uF Curve

1uF Curve

0.1uF Curve

-3.60

-3.50

4.50

SP782 LOAD vs VDD D0 = D1 = 5V VCC = 5.00V T = +25OC

4.40

4.30

4.20

4.10

VDD (volts)

4.00 0

500

1000

1500

2000

2500

3000

3500 4000

VDD - 10uF VDD - 1uF VDD - 0.1uF

4500

5000

LOAD(ohms)

SP782 LOAD vs VSS D0 = D1 = 5V VCC = 5.00V T = +25OC

-4.00

-4.10

-4.20

VSS - 10uF VSS - 1uF VSS - 0.1uF

-4.30

-4.40

VSS (volts)

-4.50 500

0

1000

1500

2000

2500

3000

3500 4000

4500

5000

LOAD(ohms)

6

40.00

35.00

30.00

25.00

20.00

15.00

10.00

IDD(milliamps)

5.00

0.00

5.00

SP784 VDD vs IDD D0 = D1 = 0V VCC = 5.00V T = +25OC

10uF Curve

0.1uF Curve

5.50

6.00

6.50 7.00

8.00 8.50 9.00 9.50 10.00

7.50

VDD(volts)

1uF Curve

0.00

-5.00

-10.00

-15.00

-20.00

-25.00

ISS(milliamps)

-30.00

-35.00

-40.00

-10.00

10.00

9.00

8.00

7.00

6.00

VDD (volts)

5.00

4.00 0

SP784 VSS vs ISS D0 = D1 = 0V VCC = 5.00V T = +25OC

10uF Curve

1uF Curve

0.1uF Curve

-9.50

-9.00

-8.50

-8.00

-7.50

-7.00

-6.50

-6.00

-5.50

VSS(volts)

SP784 LOAD vs VDD D0 = D1 = 0V VCC = 5.00V T = +25OC

VDD - 10uF VDD - 1uF VDD - 0.1uF

500

1000

1500

2000

2500

3000

3500 4000

4500

LOAD(ohms)

-5.00

5000

O

SP784 LOAD vs VSS D0 = D1 = 0V VCC = 5.00V T = +25

C

-4.00

-5.00

-6.00

-7.00

-8.00

VSS (volts)

-9.00

VSS - 10uF VSS - 1uF VSS - 0.1uF

-10.00 500

0

1000

1500

2000

2500

3000

3500 4000

4500

5000

LOAD(ohms)

7

SP784 VDD vs IDD D0 = D1 = 5V VCC = 5.00V T = +25OC

40.00

35.00

30.00

25.00

20.00

15.00

10.00

IDD(milliamps)

5.00

0.00

4.20

SP784 VSS vs ISS D0 = D1 = 5V VCC = 5.00V T = +25OC

0.00

-5.00

-10.00

-15.00

-20.00

-25.00

ISS(milliamps)

-30.00

-35.00

-40.00

-4.40

4.25

-4.30

4.30

-4.20

4.35 4.40

VDD(volts)

-4.00

-4.10

VSS(volts)

4.50 4.55 4.60 4.65

4.45

-3.90

-3.80

-3.70

10uF Curve

1uF Curve

0.1uF Curve

10uF Curve

1uF Curve

0.1uF Curve

-3.60

-3.50

4.50

SP784 LOAD vs VDD D0 = D1 = 5V VCC = 5.00V T = +25OC

4.40

4.30

4.20

4.10

VDD (volts)

4.00 0

500

1000

1500

2000

2500

3000

3500 4000

VDD - 10uF VDD - 1uF VDD - 0.1uF

4500

5000

LOAD(ohms)

SP784 LOAD vs VSS D0 = D1 = 5V VCC = 5.00V T = +25OC

-4.00

-4.10

-4.20

VSS - 10uF VSS - 1uF VSS - 0.1uF

-4.30

-4.40

VSS (volts)

-4.50 500

0

1000

1500

2000

2500

3000

3500 4000

4500

5000

LOAD(ohms)

8

THEORY OF OPERATION

The SP782/784's charge pump design is based on Sipex's original patented charge pump design (5,306,954) which uses a four–phase voltage shifting technique to attain symmetrical 10V power supplies. In addition, the SP782/ 784 charge pump incorporates a "programmable" feature that produces an output of ±10V or ±5V for VSS and VDD by two control pins, D0 and D1. The charge pump requires external capacitors to store the charge. Figure 1 shows the waveform found on the positive and negative side of capcitor C2. There is a free–running oscillator that controls the four phases of the voltage shifting. A description of each phase follows.

Phase 1 (±10V)

— VSS charge storage — During this phase of the clock cycle, the positive side of capacitors C1 and C2 are initially charged to +5V. C then switched to ground and the charge on C is transferred to C +5V, the voltage potential across capacitor C

–

. Since C

2

+

is connected to

2

+

is

l

is now 10V.

Phase 1 (±5V)

— VSS & VDD charge storage and transfer — With the C1 and C2 capacitors initially charged to +5V, C charge on C capacitor. Simultaneously the C to ground and 5V charge on C to the VDD storage capacitor.

+

is then switched to ground and the

l

–

is transferred to the VSS storage

1

–

is switched

2

+

is transferred

2

Phase 2 (±10V)

— VSS transfer — Phase two of the clock connects the negative terminal of C2 to the V storage capacitor and the positive terminal of

SS

C2 to ground, and transfers the generated –l0V or the generated –5V to C3. Simultaneously, the positive side of capacitor C 1 is switched to +5V and the negative side is connected to ground.

Phase 2 (±5V)

— VSS & VDD charge storage — C reconnected to VCC to recharge the C capacitor. C connected to C3. The 5V charge from Phase 1 is

+

is switched to ground and C

2

+

is

1

–

is

2

now transferred to the VSS storage capacitor.

VSS receives a continuous charge from either C or C2. With the C1 capacitor charged to 5V, the cycle begins again.

Phase 3

— VDD charge storage — The third phase of the clock is identical to the first phase — the charge transferred in C1 produces –5V in the negative terminal of C1, which is applied to the negative side of capacitor C2. Since C voltage potential across C2 is l0V. For the 5V output, C potential on C2 is only +5V.

+

is connected to ground so that the

2

Phase 4

— VDD transfer — The fourth phase of the clock connects the negative terminal of C2 to ground and transfers the generated l0V or the generated 5V across C2 to C4, the VDD storage capacitor. Again, simultaneously with this, the positive side of capacitor C1 is switched to +5V

–

and the negative side is connected to ground,

1

and the cycle begins again.

2

Since both VDD and VSS are separately generated from VCC in a no–load condition, VDD and VSS will be symmetrical. Older charge pump approaches that generate V– from V+ will show a decrease in the magnitude of V– compared to V+ due to the inherent inefficiencies in the design.

VCC = +5V

C

+

–

C

4

+

–

C

++

C

1

–5V

C

2

Figure 2. Charge Pump Phase 1 for ±10V.

VCC = +5V

++

C

1

–5V

+5V

C

2

Figure 3. Charge Pump Phase 1 for ±5V.

+5V

––

–5V

––

+

is at +5V, the

4

–

V

Storage Capacitor

DD

+

V

Storage Capacitor

SS

3

–

Storage Capacitor

V

DD

+

V

Storage Capacitor

SS

3

1

9

VCC = +5V

++

C

1

C

–10V

2

––

C

4

+

–

V

DD

+

–

V

SS

C

3

Storage Capacitor

VCC = +5V

++

C

1

C

2

––

–5V

C

4

+

–

V

DD

+

–

V

SS

C

3

Storage Capacitor

Figure 4. Charge Pump Phase 2 for ±10V.

VCC = +5V

++

C

1

–5V

+5V

C

2

––

–5V

C

4

+

–

V

DD

+

–

V

SS

C

3

Storage Capacitor

Figure 6. Charge Pump Phase 3.

The oscillator frequency or clock rate for the charge pump is designed for low power operation. The oscillator changes from a high frequency mode (400kHz) to a low frequency mode (20kHz) when the SD pin goes to a logic "1". The lower frequency allows the SP782/ SP784 to conserve power when the outputs are not being used.

EFFICIENCY INFORMATION

A charge pump theoretically produces a doubled voltage at 100% efficiency. However in the real world, there is a small voltage drop on the output which reduces the output efficiency. The SP782 and SP784 can usually run 99.9% efficient without driving a load. While driving a 1kΩ load, the SP782 and SP784 remain at least 90% efficient.

Figure 5. Charge Pump Phase 2 for ±5V.

VCC = +5V

++

C

1

+10V

C

2

––

C

4

+

–

V

DD

+

–

V

SS

C

3

Storage Capacitor

Figure 7. Charge Pump Phase 4.

save board space, lower values will reduce the output drive capability.

The output voltage ripple is also affected by the capacitors, specifically C3 and C4. Larger values will reduce the output ripple for a given load of current. The current drawn from either output is supplied by just the storage capacitor, C3 or C4, during one half cycle of the internal oscillator. Note that the output current from the postive charge pump is the load current plus the current taken by the negative charge pump. Thus the formula representation for the output ripple voltage is:

V V

RIPPLE RIPPLE

+ = {1 / (f – = {1 / (f

) * 1 / C3} * 0.5 * I

OSC

) * 1 / C3} * 0.5 * I

OSC

OUT OUT

+ –

Total Output Voltage Efficiency = [(V

+) / (2*VCC)] + [(V

OUT

V

+ = 2*VCC + V

OUT

V

– = –2*VCC + V

OUT

V

– = (I–)*(R

DROP

V

+ = (I+)*(R

DROP

Power Loss = I

OUT

*(V

OUT

DROP

–)

+)

DROP

–) / (–2*VCC)] ;

+

–

)

The efficiency changes as the external charge pump capacitors are varied. Larger capacitor values will strengthen the output and reduce output ripple usually found in all charge pumps. Although smaller capacitors will cost less and

To minimize the output ripple, the C3 and C4 storage capacitors can be increased to over 10µF whereas the pump capacitors can range from 1µF to 5µF.

Multiple SP782/784 charge pumps can be connected in parallel. However, the output resistance on both pump outputs will be reduced. The effective output resistance is the output resistance of one pump divided by the number of charge pumps connected. It is important to keep the C1 and C2 capacitors separate for each charge pump. The storage capacitors, C3 and C4, can be shared.

10

SHUTDOWN MODE

The internal oscillator of the SP782 and SP784 can be shutdown through the SD pin. In this state, the VDD and VSS outputs are inactive and the power supply current reduces to 10µA.

LATCH ENABLE PIN

The SP782 and SP784 includes a control pin (LAT) that latches the D0 and D1 control lines. Connecting this pin to a logic HIGH state will allow transparent operation of the D0 and D1 control lines. This input can be left floating since there is an internal pull-up resistor which will allow the latch to be transparent.

APPLICATIONS INFORMATION

The SP782 and SP784 can be used in various applications where ±10V is needed from a +5V source. Analog switches, op-amp power supplies, and LCD biasing are some applications where the charge pumps can be used.

The charge pump can also be used for supplying voltage rails for RS-232 drivers needing ±12V. The ±10V output from the charge pump is more than adequate to provide the proper VOH and VOL levels at the driver output.

The RS-423 driver output voltage range is ±4.0V to ±6.0V. When the SP524 transceiver is programmed to RS-423 mode (V.10), the charge pump now provides ±5V, through D0 and D1, thus allowing the driver outputs to comply with VOC ≤ 6.0V as well as the VT requirement of ±4.0V minimum with a 450Ω load to ground.

In older configurations, separate DC sources needed to be configured or regulated down from ±10V to ±5V in a given application. A typical charge pump providing VDD and VSS would require external clamping such as 5V Zener diodes. RS-423 (V.10) is usually found in RS-449, EIA-530, EIA-530A, and V.36 modes.

When the control lines D0 and D1 are both at a logic HIGH, VDD = +5V and VSS = -5V. All other inputs to the control lines result in VDD = +10V and VSS = -10V. Control of the SP784 in an application with Sipex's SP524 can be found in Figure 8.

Figure 8 shows how the SP784 can be used in conjunction with the SP524 multiprotocol transceiver IC. The programmability is ideal for RS-232 and RS-423 levels. The RS-232 driver output voltage swing ranges from ±5V to ±15V. In order to meet this requirement, the charge pump must generate ±10V to the transceiver IC.

11

14

C1+

10µF

1

C1–

12

C2+ (b)

5

10µF

D0 D1 V

C2+ (a)

3

C2–

D0

9

D1

8

EN

6

SD

15

DD

V

0 0 +10V -10V

0 1 +10V -10V

1 0 +10V -10V

1 1 +5V -5V

10µF

+

SP784

SS

+5V

13

V

CC

V

DD

V

SS

GND

16

4

10µF

11

2

10µF

+5V

10µF

+

28

14

19

V

DD

VCCV

2

29

V

SS

CC

V

CC

SP524

31

DP0

DECODER LOGIC

32

DP1

T1IN

ENT1

T2IN

ENT2

R1OUT

ENR1

R2OUT

ENR2

T3IN

ENT3

T4IN

ENT4

R3OUT

ENR3

R4OUT

ENR4

24 36

25 35

44 40

43

39

26 34

27

33

42

38

41

37

T1

T2

R1

R2

T3

T4

R3

R4

GND

121

12

LATCH_EN

30 LOOPBCK

23

T1OUTA

22

T1OUTB

20 T2OUTA

18 T2OUTB 17 R1INA 3

R1INB 4

LOOPBACK PATHS

R2INA 5

R2INB

6

T3OUTA 16

T3OUTB

15

T4OUTA

13 T4OUTB 11 R3INA 7

R3INB 8

LOOPBACK PATHS

R4INA 9

R4INB 10

GNDGND

Figure 8. SP784 Application w/ SP524 Multi-Protocol Transceiver IC.

12

+

+5V

10µF

1µF

6

LATCH

14

C1+

1

C1–

12

C2+

5

C2+

3

C2–

16

V

SP782

GND

4

13

CC

D0 9

8

SD

D1

15

V

DD

11

V

SS

2

1µF

+5V

10µF

+

13

10µF

14

12

1

5

3

C1+

C1–

C2+ (b)

C2+ (a)

C2–

V

CC

SP784

V

DD

11

D0

9

15

D1

8

LATCH

6

SD

GND

16

V

SS

2

10µF

4

Figure 9. SP782 and SP784 Block Diagrams

13

PACKAGE: PLASTIC

SMALL OUTLINE (SOIC) (WIDE)

EH

D

A

Ø

Be

A1

L

DIMENSIONS (Inches)

Minimum/Maximum

(mm)

A

A1

B

D

E

e

H

L

Ø

16–PIN

0.093/0.104

(2.352/2.649)

0.004/0.012

(0.102/0.300)

0.013/0.020

(0.330/0.508)

0.398/0.406

(10.11/10.31)

0.291/0.299

(7.402/7.600)

0.050 BSC

(1.270 BSC)

0.394/0.419

(10.00/10.64)

0.016/0.050

(0.406/1.270)

0°/8°

(0°/8°)

14

D1 = 0.005" min.

(0.127 min.)

PACKAGE:

16-PIN PLASTIC DUAL–IN–LINE (NARROW)

E1

E

A1 = 0.015" min.

D

(0.381min.)

A

e = 0.100 BSC

(2.540 BSC)

B1

B

ALTERNATE

END PINS

(BOTH ENDS)

DIMENSIONS (Inches)

Minimum/Maximum

(mm)

A

A2

B

B1

C

D

E

E1

L

Ø

A2

L

C

Ø

eA = 0.300 BSC

(7.620 BSC)

16–PIN

–/0.210

(–/5.334)

0.115/0.195

(2.921/4.953)

0.014/0.022

(0.356/0.559)

0.045/0.070

(1.143/1.778)

0.008/0.014

(0.203/0.356)

0.780/0.800

(19.812/20.320)

0.300/0.325

(7.620/8.255)

0.240/0.280

(6.096/7.112)

0.115/0.150

(2.921/3.810)

0°/ 15°

(0°/15°)

15

Model Temperature Range Package Types

ORDERING INFORMATION

SP782CP .......................................................................... 0°C to +70°C ..................................................................................... 16-pin Plastic DIP

SP784CP .......................................................................... 0°C to +70°C ..................................................................................... 16-pin Plastic DIP

SP782CT ........................................................................... 0°C to +70°C .............................................................................................. 16-pin SOIC

SP784CT ........................................................................... 0°C to +70°C .............................................................................................. 16-pin SOIC

Please consult the factory for pricing and availability on a Tape-On-Reel option.

Corporation

SIGNAL PROCESSING EXCELLENCE

Sipex Corporation Headquarters and

Sales Office

22 Linnell Circle Billerica, MA 01821 TEL: (978) 667-8700 FAX: (978) 670-9001 e-mail: sales@sipex.com

Sales Office

233 South Hillview Drive Milpitas, CA 95035 TEL: (408) 934-7500 FAX: (408) 935-7600

Sipex Corporation reserves the right to make changes to any products described herein. Sipex does not assume any liability arising out of the application or use of any product or circuit described hereing; neither does it convey any license under its patent rights nor the rights of others.

16

Datasheet SP784CT, SP782CP, SP782CT, SP784CP Datasheet (Sipex Corporation)

Specifications and Main Features

Frequently Asked Questions

User Manual