CT2100-400 AEROFLEX | Alldatasheet

Document overview

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Technical content

Features

  • 4 Independent 1.0 Amp Switches
  • 600 Volts Isolation between Switches
  • Operates from a 5 Volt Logic and 15 Volt Bias
  • D.C. Trip Level 1.3 Amps
  • Switches are Designed to withstand Electro-Magnetic Pulse (EMP)
  • Functions and Operates from -55°C to +125°C in Military Environments
  • Processed and Screened to Mil-STD-883 Specifications Block Diagram Smart Switch Smart Switch Smart Switch TRIP Smart Switch

600 Volt

8 Bit

S1– S2+ S3+ S4+ S2– S3– S4– DATA 0-7 The CT2100-400 is a microprocessor controlled, quad solid state relay that incorporates fully isolated switch control and built-in test. The hybrid provides 600 Volts isolation between control inputs and switch outputs. Internal control and status registers provide analog switch function which operates via simple I/O commands. CIRCUIT TECHNOLOGY www.aeroflex.com/act1.htm QUAD SOLID STATE RELAY MICROPROCESSOR CONTROLLED CT2100-400

2Aeroflex Circuit Technology SCDCT2100 REV B 10/1/98 Plainview NY (516) 694-6700

DESCRIPTION

The CT2100-400 is a quad solid state relay. The device has been designed to provide an interface which operates as a simple computer I/O port. The switches are controlled by a single data word which the processor writes to an internal control latch. In addition to the basic switch function ON/OFF and Trip flags provide the operational status of each of the four switches. These signals are internally contained in an 8 bit status register which is accessible by an I/O read command. The switches may also be controlled asynchronously (without write strobes) by use of separate initialization pins. These may also be used for Power-Up control in a microprocessor based system. SWITCH CONTROL The CT2100-400 has four independent fully isolated switches which may be used as high side or low side drivers. The isolated design allows the user to parallel devices or place them in series as required for the specific application. Control of the switch is via I/O write (Address 0) or asynchronous control lines. The CT2100-400 has an internal switch control latch which is updated via subsystem I/O write as illustrated in Figure 2. Once the I/O write is completed the switch is latched into the OFF or ON state. The switch may also be controlled via individual PRESET and CLEAR lines. These lines asynchronously drive the switch control latch without the need for a write strobe. The PRESET/CLEAR inputs are enabled by the initializepin. SWITCH STATUS Each switch in the CT2100-400 is monitored for circuit Trip and ON/OFF. This data is contained in a 8 bit status register which is accessible via an I/O read (Address0) command. The timing for the I/O read is shown in Figure 1. The Trip and ON/OFF flags are provided to the system to assess the operational capability of the switch versus the status of the controlled load. The Trip bit is set high when the switch has conducted between 1.1 to 3 amps of current based on the time to trip curve in Figure 3. The over current DC trip point is typically 1.3 amps. Table 1 — Absolute Maximum Ratings Supply Voltage (VCC ) — Pin 20 -0.5 to +7.0 Volts DC Supply Voltage (VEE ) — Pin 1 -.5 to +18 Volts DC Logic Input Voltage — Pins 2-9, 12-19 -0.5 to VCC +.5 Volts DC Switch Point Voltage — Pins 39-40, 29-32, 21-22-600 to +600 Volts (200 ns)

80 Volts DC

Storage Temperature Range -65°C to +150 °C Table 2 — Recommended Operating Conditions Supply Voltage (VCC ) — Pin 20 +5.0 VDC ±10% Supply Voltage (VEE ) — Pin 1 +14.25 to +15.75 VDC Logic Input Maximum Voltage (High) — Pins 2-9, 12-19 +3.3 V Logic Input Minimum Voltage (Low) — Pins 2-9, 12-19 +0.8 V Switch Point Voltage — Pins 39-40, 29-32, 21-22 60 VDC Operating Temperature Range -55°C to +125 °C

4Aeroflex Circuit Technology SCDCT2100 REV B 10/1/98 Plainview NY (516) 694-6700 Table 5 — Bus Bit Definition ADDRESS = 0 BIT WRITE CYCLE READ CYCLE D0 S1 ON/OFF 0 = ON S1 ON/OFF status (Bit = 0)(When switch on) D1 Not Used S1 TRIP status (Bit = 1)(When short circuit protection active)) D2 S2 ON/OFF 0 = ON S2 ON/OFF Status D3 Not Used S2 TRIP Status D4 S3 ON/OFF 0 = ON S3 ON/OFF Status D5 Not Used S3 TRIP Status D6 S4 ON/OFF 0 = ON S4 ON/OFF Status D7 Not Used S4 TRIP Status ADDRESS = 1 (Wrap Around) D0 – D7 Bit = 1 or 0 Whatever was written in the write cycle will be read ADDRESS = 2 D0 X \\1 0 = Command On (Signal being sent from the control side to Isolation Driver) D1 X Not Used D2 X 0 = Command On (Signal being sent from the control side to Isolation Driver) D3 X Not Used D4 X 0 = Command On (Signal being sent from the control side to Isolation Driver) D5 X Not Used D6 X 0 = Command On (Signal being sent from the control side to Isolation Driver) D7 X Not Used \\1 X = Don’t care. During a write cycle (Address 2) it shall be considered as if the INIT is enabled. Table 6 —Built-in Test Status (BIT) Switch Control (Closed/OPEN) TRIP Status ON/OFF Status Conclusion 1 0 1 Normal (OFF) 0 0 0 Normal (ON) 0 1 1 Switch Tripped off due to excessive load current Note: All other TRIP and ON/OFF status combinations are indicative of switch, BIT or load failures

5Aeroflex Circuit Technology SCDCT2100 REV B 10/1/98 Plainview NY (516) 694-6700 Table 7A – Pin Numbers & Functions CT2100-400 Pin # Function Pin # Function

1 VEE 21 S4-

2 CS 22 S4+

3 INIT 23 NC

4 DB0 24 NC

5 DB1 25 NC

6 PRESET/CLEAR 1 26 A1

7 PRESET/CLEAR 2 27 A0

8 DB2 28 NC

9 DB3 29 S3-

10 VEE RETURN 30 S3+

11 VCC RETURN 31 S2-

12 DB4 32 S2+

13 DB5 33 NC

14 PRESET/CLEAR 3 34 NC

15 PRESET/CLEAR 4 35 NC

16 DB6 36 NC

17 DB7 37 NC

18 WRITE 38 NC

19 READ 39 S1-

20 VCC 40 S1+

Table 7B — Model CT2100-400 Dual In Line Package .016 .100 TYP TOP VIEW 2.140 ±.010 .020 1.900 ±.005 .900 ±.010 1.140 ±.010 .120 ±.010 .120 ±.010 .180 ±.010 Pin numbers are for reference only .300 MAX

Aeroflex Circuit Technology SCDCT2100 REV B 10/1/98 Plainview NY (516) 694-6700 Specifications subject to change without notice. Figure 3 — Nominal Time to Trip Curve 3400 3200 3000 2800 2600 2400 2200 2000 1800 1600 1400 1200 1000 800 600 1 10 100 1000 Time (ms) No Trip Region Trip Region

1.1 Amps

Ordering Information

Model No. CT2100-400 Aeroflex Circuit Technology

35 South Service Road

FAX: (516) 694-6715 Toll Free Inquiries: 1-(800) 843-1553 Telephone: (516) 694-6700