SOLID STATE POWER CONTROLLER HYBRID MICROELECTRONICS PRODUCTS DIV

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SOLID STATE POWER CONTROLLER HYBRID MICROELECTRONICS PRODUCTS DIV

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53248-102
SOLID STATE POWER CONTROLLER
HYBRID MICROELECTRONICS PRODUCTS DIVISION
Features: Isolated Control Isolated Status Output Latched Fault Protection Thermal Shutdown Undervoltage Overvoltage Shutdown Current Limit Short Circuit Protection
Applications: Power Distribution Land/Air/Launch Vehicles Motor Switch Displays/Lamps/Controls Industrial Automation Switching Heaters Test Equipment Machine Control Equipment Medical Equipment
DESCRIPTION 53248-102 Solid State High Side Power Controller (SSPC) that designed replace electromagnetic circuit breakers rated amperes. high side switch utilizing N-channel vertical power technology with integral charge pump. SSPC provides status output that signals variety conditions including over temperature shutdown, overvoltage undervoltage, over-current short circuit. will trip latch above conditions until reset recycling control input. Using vertical MOSFET technology, SSPC offers extremely "ON" resistance. This results very power dissipation, which allows operation over temperature range -40°C +85°C with minimal heat sinking.
ABSOLUTE MAXIMUM RATINGS 25°C unless otherwise specified) Input Control Current Reverse Input Voltage (Control Signal Ground) Pins Case Isolation .1000 Input-Output Isolation .1000 Lead Temperature seconds). +300°C Junction Temperature. +150°C Blocking Voltage
Micropac Industries cannot assume responsibility circuits shown represent that they free from patent infringement. Micropac reserves right make changes time order improve design supply best product possible. MICROPAC INDUSTRIES, INC. HYBRID MICROELECTRONICS PRODUCTS DIVISION Walnut St., Garland, 75040 (972) 272-3571 (972) 494-2281 www.micropac.com E-MAIL: hybridsales@micropac.com 02/15/01
PRELIMINARY DATA SHEET 53248-102 SOLID STATE POWER CONTROLLER
Package Configuration
FUNCTION CONTROL STATUS SIGNAL OUTPUT OUTPUT POWER POWER POWER POWER
Dimensions: inches
Functional Block Diagram
POWER
VOLTAGE REGULATOR
CURRENT LIMIT
GATE PROTECTION
CONTROL
ISOLATION/ CONTROL
LOGIC
CHARGE PUMP
OUTPUT DETECTION
OUTPUT
STATUS SIGNAL
TEMP SENSE ISOLATION/ STATUS LOAD
(POWER GND)
Micropac Industries cannot assume responsibility circuits shown represent that they free from patent infringement. Micropac reserves right make changes time order improve design supply best product possible. MICROPAC INDUSTRIES, INC. HYBRID MICROELECTRONICS PRODUCTS DIVISION Walnut St., Garland, 75040 (972) 272-3571 (972) 494-2281 www.micropac.com E-MAIL: hybridsales@micropac.com 02/15/01
53248-102 28VDC SOLID STATE POWER CONTROLLER
SPECIFICATIONS 25°C unless otherwise specified) Control Function Input Type .1.5 resistor series with drop Turn-on Control Current (min) Turn-off Control Current (max) Status Function Open Collector transistor, (max) Output High Output +0.4 (max) (max) Status output transistor (logic high) indicates unit off. Status output transistor VDC) indicates unit Power Circuit Supply Voltage (for normal operation).5 (min), (typ), (max) Continuous Current. On-state Resistance, 25°C 5A).38 On-state Resistance, 150°C Minimum Output Voltage Drop 0.5A) Power Dissipation 25°C Full Load Power Output Leakage Through Load (off state, supply 28VDC) Quiescent Current load) supply 28VDC) (typ), (max)
Temperature Range Operating (Case) .-40°C +85°C Storage.-55°C +150°C
Thermal Resistance Junction Case °C/W
Physical Characteristics Package Configuration
Timing =1A) Turn-on Time µsec (max) Status Turn-on Delay. µsec (max) Turn-off Time µsec (max) Status Turn-off Delay. µsec (max)
Micropac Industries cannot assume responsibility circuits shown represent that they free from patent infringement. Micropac reserves right make changes time order improve design supply best product possible. MICROPAC INDUSTRIES, INC. HYBRID MICROELECTRONICS PRODUCTS DIVISION Walnut St., Garland, 75040 (972) 272-3571 (972) 494-2281 www.micropac.com E-MAIL: hybridsales@micropac.com 02/15/01
PRELIMINARY DATA SHEET 53248-102 28VDC SOLID STATE POWER CONTROLLER
FUNCTIONAL DESCRIPTION 53248-102 SSPC offers wide range features. These include overvoltage undervoltage shutdown, overcurrent short circuit protection provided temperature sensing, built transient protection fully optically isolated control status lines. overcurrent short circuit protection achieved through temperature sensing feature controller. Overcurrent sensed through increasing RDS(ON) causing increase power dissipation pass element, which additionally causes further increase RDS(ON). junction temperature approaches +150°C, drive pass element decreased, causing increase. When pass element temperature between +150°C +175°C, drive pass element removed current flow ceases. When control recycled fault condition been removed device will resume operations. Status will indicate fault condition until fault removed.
Peak Current Limits Junction Temperature* Junction Temperature Unit -40°C +25°C +150°C *Peak Duration
Overvoltage Undervoltage Limits Overvoltage Undervoltage +2.4 +4.5 Overvoltage hysteresis Typical +0.2 Undervoltage hysteresis Typical +0.2
-40°C +150°C)
Typical Waveform 53248-102 Short Circuit Protection: Short-while-On 25°C
Output Load Current, -200
1000
1200
1400
1600
1800
2000
Time, microseconds
Micropac Industries cannot assume responsibility circuits shown represent that they free from patent infringement. Micropac reserves right make changes time order improve design supply best product possible. MICROPAC INDUSTRIES, INC. HYBRID MICROELECTRONICS PRODUCTS DIVISION Walnut St., Garland, 75040 (972) 272-3571 (972) 494-2281 www.micropac.com E-MAIL: hybridsales@micropac.com 02/15/01
PRELIMINARY DATA SHEET 53248-102 28VDC SOLID STATE POWER CONTROLLER
APPLICATION INFORMATION
cable harness occupies important position total network protected. wide variety some cases considerable length packing density used makes them particularly susceptible persistent overloads and/or overheating. maximum current carrying capacity cable depends resistance, type insulation material ambient temperature. cable, including insulation, generally consists least materials with different thermal capacitance thermal resistance. maximum temperatures most cables least +150°C (depending insulation properties) which very close maximum junction temperature SSPC (Shutdown). Since under overcurrent short circuit conditions, unit resistance unit length cable much less than SSPC, unit heating cable will also much less. Under these conditions, apparent that SSPC adequately protect properly selected cabling. following formulas provide methods calculating primary parameters.
Trip Current
Itrip {(Tj Ta)/[R ][RON max)]}
Maximum Trip Temperature Ambient Temperature
Thermal Resistance, Junction Ambient max) On-state resistance Trip Temperature
On-state Resistance
0.006
on-state resistance 25°C 2.718282 (natural logarithm) temperature interest
With above information, temperature current trip determined based upon type mounting chosen ambient temperatures operation.
Precaution When short circuit causes turn-off SSPC, precautions must taken limit transient voltages generated inductance load less than voltage blocking SSPC (i.e. 63V). External protection recommended, either across switch across load, limit voltage transients levels less than insure SSPC maximum blocking voltage exceeded. Isolation Control Status SSPC designed utilize optical isolation both input/control status feed back. only input power required that necessary drive control provide pull power open collector status transistor. SSPC derives energy operation from load supply. result, power power completely isolated.
Micropac Industries cannot assume responsibility circuits shown represent that they free from patent infringement. Micropac reserves right make changes time order improve design supply best product possible. MICROPAC INDUSTRIES, INC. HYBRID MICROELECTRONICS PRODUCTS DIVISION Walnut St., Garland, 75040 (972) 272-3571 (972) 494-2281 www.micropac.com E-MAIL: hybridsales@micropac.com 02/15/01
PRELIMINARY DATA SHEET 53248-102 28VDC SOLID STATE POWER CONTROLLER
Truth Table Control Normal Operation Current Overload Over-Temperature Undervoltage Overvoltage Note: Control Output: "Low" Level Voltage "High" Level Voltage Loads 53248-102 SSPC designed handle side loads from VDC. Combinations inductive, resistive capacitive used. This includes lamps motors. Inductive loads require protecting SSPC from voltage transients pointed precaution section above. capacitive loads, user must assure that junction temperature body exceeded. turn off, drops below voltage charge capacitor, current flow through body diode switch with inherent capability limit this spike reverse current. Incandescent lamps must treated much like capacitive loads that inrush currents turn-on cause overcurrent condition. motors must treated like capacitive loads because in-rush currents very high. Should machine continue rotate after power removed, reverse currents back need addressed. Heatsinking SSPC designed take advantage relationship between junction temperatures heat sink thermal impedance. described section discussing current trip characteristics, thermal impedance heat sink utilized determine magnitude time over current short circuit current expected system. Offset voltage Power MOSFETs used Micropac's SSPC have very resistance therefore power dissipation. Typical on-state resistance 25°C only internal design typical This stays relatively constant until current reaches approximately amperes when higher currents, constant +25°C. Maximum +150°C Since design SSPC current limit temperature dependent, there need current sensing resistor therefore additional voltage drop which would RDS. Status Open Collector Current Sink Output Status
Micropac Industries cannot assume responsibility circuits shown represent that they free from patent infringement. Micropac reserves right make changes time order improve design supply best product possible. MICROPAC INDUSTRIES, INC. HYBRID MICROELECTRONICS PRODUCTS DIVISION Walnut St., Garland, 75040 (972) 272-3571 (972) 494-2281 www.micropac.com E-MAIL: hybridsales@micropac.com 02/15/01

SOLID STATE POWER CONTROLLER HYBRID MICROELECTRONICS PRODUCTS DIV

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