Datasheet LS7315-S, LS7315, LS7314-S, LS7314 Datasheet (LSI)

Page 1

AC POWER CONTROLLERS

DESCRIPTION:

The LS7314 - LS7315 are MOS integrated circuits specifically designed for appliance motor speed control, lighting control, etc. I/Os (PLs) are provided for selecting/indicating from one to ten power levels. The LS7315 is designed for pushbutton control. The LS7314 is designed for touch control. (See Figures 4A and 4B)

INPUT/OUTPUT DESCRIPTION: PL1-PL10 (Pins 1-8, 15, 16)

Ten inputs/outputs for selecting ten output phase angles (power levels). When no power level is selected (such as after system power-up) PL1-PL10 all act as inputs. When a power level is selected by applying a logic zero at one of these inputs for TH time (See Dynamic Characteristics), the output (TRIG) is turned on at the phase angle selected and the PL input switches status to become an output in order to drive a display, such as an LED. It switches back to the input state when another PL input is activated or when OFF is selected. (See Note 1)

OFF (Pin 10)

If TRIG is on, a logic 0 applied to the OFF input for TH time turns TRIG output off and switches the selected PL back to the input state. If TRIG is off, activating OFF leaves the circuit unaffected. Following an OFF activation, TRIG can be turned on by applying any PL input. (See Note 1)

SYNC (Pin 12)

Input for PLL reference frequency (50Hz/60Hz). All internal clock frequencies are synchronized with the SYNC input.

CAP (Pin 11)

Input for component connection for the PLL filter capacitor.

4 5

PL3

PL4 PL5

PL6

PL7

PL8 PL9

PL10

PL2

TRIG

Vss (+V)

SYNC

CAP

OFF VDD (-V)

LSI

CONNECTION DIAGRAM - TOP VIEW

LS7314

FIGURE 1

PL1

7314-040197-1

APPLICATIONS:

• Universal and shaded-pole motor speed control for modern appliance designs. Eliminates awkward mechanical switch assemblies and multi-tapped motor windings. (See Fig. 4C)

• Multi-level light switches. (See Fig. 4D)

TRIG (Pin 13)

This output is designed to drive a triac in series with the load and control its firing angle with respect to the AC line. A 1ms output pulse width is provided to enable the triac to fire even with inductive loads which cause significant phase delays between voltage and current.

Vss (Pin 14)

Supply voltage positive terminal.

VDD (Pin 9)

Supply voltage negative terminal (ground). NOTE 1: LS7315 has an internal pullup resistor on this in-

put and LS7314 does not. (See DC Electrical Characteristics.)

LSI/CSI

LSI Computer Systems, Inc. 1235 Walt Whitman Road, Melville, NY 11747 (631) 271-0400 FAX (631) 271-0405

LS7314-7315

A3800

FIGURE 2. TRIG PHASE ANGLE Ø

SYNC

TRIG

FEATURES:

• 10 I/Os to Select/Indicate up to ten Power Levels

• Inputs activated by Touch or Pushbutton Switch

• Output switches pure and precise AC Power to Load

• Operates with 50Hz/60Hz line frequency

• Rugged, latchup-free process technology

• +10V to +14V operation (Vss-VDD)

• LS7314, LS7315 (DIP;

LS7314-S, LS7315-S (SOIC) - See Figure 1

Page 2

7314-033197-2

*LS7314 & LS7315 **LS7315-51

(1) The TRIG Phase Angles shown in TABLE 1 are referenced

to the SYNC input. Ø values are mask programmable.

(2) The percentage of Full Power delivered to a resistive load

by the Triac Switch.

FIGURE 4C VALUE TABLE CONDITION C2(µF)

(1), (3) 0.47

(1), (4) 0.33 (2), (3) 0.68 (2), (4) 0.47

(1) No LEDs (2) 5mA LEDs (3) 115VAC, C2 = 200V (4) 220VAC, C2 = 400V

FIGURE 4C and 4D NOTES

NOTE 1: Value for 5mA LEDs. NOTE 2: Use zener which produces 6.2V ±5% at 500µA or

less, i. e. P/N MZ4627. NOTE 3: R6-C6 Snubber Network may be required for large inductive loads. NOTE 4: Tie all unused touch inputs together and return to Vss through 100k Ohm, 1/4W resistor. NOTE 5: The AC Mains Polarity shown is required for Touch Control applications.

DRIVER

CONTROL

LOGIC

DRIVER

DIGITAL

COMPARATOR

POWER

LEVEL

ROM

PHASE

ANGLE

POINTER

PHASE-LOCKED

LOOP

AND

CLOCK

GENERATOR

LEVEL 1

LEVEL 10

VSS

VDD

TRIG

CAP

OFF

PL1

PL10

FIGURE 3. LS7314-LS7315 BLOCK DIAGRAM

VSS

VDD

SYNC

TABLE 1. TRIG PHASE ANGLES, Ø (1) PL Ø * % PWR (2) Ø ** %PWR (2)

1 43° 8 81° 40 2 55° 16 105° 67 3 68° 26 116° 77 4 81° 40 120° 80 5 95° 55 123° 83 6 108° 69 129° 87 7 122° 82 134° 90 8 134° 90 160° 99 9 147° 96 167° 99

10 160° 99 175° 99

OFFPL1PL10

FIGURE 4A. PUSHBUTTON INTERFACE FOR LS7315

VDD

R3 = 10K , 1/4W

Vss

TP TP TP

PL10 PL1 OFF

FIGURE 4B. TOUCH INTERFACE FOR LS7314

SEE NOTE 4

R7 = 1M to 5M , 1/4W (Select for Sensitivity) R8 = 2.7M , 1/4W for 115VAC Mains R8 = 4.7M , 1/4W for 220VAC Mains

Page 3

MT2

MT1

SYNC CAP

10158

VSS

OFF

PL1

PL10

LS7314 - LS7315

FIGURE 4C. MOTOR SPEED CONTROL APPLICATION

VDD

TRIG

OFF

PL1

PL10

AC MAINS

SEE NOTE 3

SEE NOTE 5

Use Fig. 4A or 4B Interface Circuits

C1 = 0.15µF, 200V (400V) R1 = 82Ω C2 = See Figure 4 Value Table R2 = 1.5MΩ C3 = 0.047µF R4 = 560Ω (See Note 1) C4 = 470pF R5 = 10kΩ C5 = 220uF R6 = 1.8kΩ, 1W (2W) C6 = 0.47µF, 200V (400V) R9 = 100Ω L = 100µH (200µH) Z1 = 13V ± 5%, 1W D1 = 1N4148 Z2 = 6.2V, 1/4W (See Note 2) T = Q4004L4 (Q5004L4) Typical

All resistors 1/4W, all capacitors 25V unless otherwise specified. Indicates component change for 220VAC Mains.

7314-033197-3

100µH

MT2

MT1

200V

13V

220µF

1N4148

470pF

SYNC CAP

10158

6.2V, 1/4W (See Note 2)

10K

VSS

OFF

PL1

PL10

LS7314 - LS7315

FIGURE 4D. MULTI-LEVEL WALL SWITCH DIMMER APPLICATION

VDD

TRIG

OFF

PL1

PL10

115V AC MAINS

Q40044L4

0.15µF

INCANDESCENT LAMP LOAD

2W 200V

0.68µF

.047µF

Use Fig. 4A or Fig. 4B Interface Circuits

1.5M

All Resistors 1/4W, all Capacitors 25V unless otherwise specified. Component Values are for use with 115VAC Mains and 2.5mA LEDs.

Page 4

Input Pull-up Resistance:

For LS7315

PL, OFF RIN 50 100 200 kΩ - Output Voltage:

TRIG, HI VOH Vss - - V - TRIG, LO VOL - Vss - 8 - V -

Output Current: TRIG, Sink IOS 25 - - mA Vss = +12V

VOL = Vss - 4V

PL Source IOPL 5 - - mA VOP L= Vss - 1V

DYNAMIC CHARACTERISTICS:

SYMBOL MIN TYP MAX UNIT CONDITION

SYNC frequency fS 40 - 70 Hz - PL, OFF hold time TH 50 - infinite ms 60Hz SYNC

TH 60 - infinite ms 50Hz SYNC

TRIG Pulse Width Tw - 1.0 - ms 60Hz SYNC

Tw - 1.2 - ms 50Hz SYNC

MAXIMUM RATINGS:

PARAMETER SYMBOL VALUE UNIT

Storage Temperature TSTG -65 to +150 °C

Operating Temperature TA 0 to +80 °C DC Supply Voltage Vss - VDD +20 V Any Input Voltage VIN Vss - 20 to Vss + 0.5 V

DC ELECTRICAL CHARACTERISTICS:

(TA = 25˚C, all voltages referenced to VDD)

SYMBOL MIN TYP MAX UNIT CONDITION

Supply Voltage VSS +10 +12 +14 V Supply Current IDD - 1.2 2 mA Vss = 12V, outputs off

Input Voltage: SYNC, LO VISL 0 - 1/3Vss V - SYNC, HI VISH 2/3Vss - Vss V - All other inputs, LO VIL 0 - 1/4Vss V - All other inputs, HI VIH 1/2Vss - Vss V -

Input Current: SYNC Input IH - - 110 µA With Series 1.5MΩ

Resistor to 115VAC

7310-032597-4

The information included herein is believed to be accurate and reliable. However, LSI Computer Systems, Inc. assumes no responsibilities for inaccuracies, nor for any infringements of patent rights of others which may result from its use.