Details, datasheet, quote on part number: SM610R
PartSM610R
Category
DescriptionSwitching Regulator Power Output Stages
CompanyMicrosemi Corporation
DatasheetDownload SM610R datasheet
Quote
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Features, Applications
DESCRIPTION

The SM600/601/602 and SM610/611/612 series of Power Output Stages are especially designed to be driven with standard PWM integrated circuits to form an efficient switching power supply. The SM600, SM601 and SM602 are optimized for non-isolated Buck and Buck-Boost application, where SM610, SM611 and SM612 are best suited for DC-DC Boost type applications as well as negative output Buck Converters. The hybrid circuit construction utilizes thick film resistors on a beryllia substrate for maximum thermal conductivity and resultant low thermal impedance. All of the active elements in the hybrid are fully passivated.

FEATURES

Equivalent to the Unitrode PIC 5A current capability Designed and characterized for switching regulator applications such as Buck, Boost, and Buck-Boost type Cost saving design reduces size, improves efficiency, reduces noise and RFI High operating efficiency at 2A typical performance Rise and fall time < 75ns Efficiency > 85% Electrically isolated, 4-pin, TO-66 hermetic case

Input Voltage, - 2........................................ Output Voltage, - 2..................................... Drive Input Reverse Voltage, - 4............... Output Current, I1......................................... Drive Current, -5A 0.2A

Thermal Resistance Power Switch, J - C................................................... 4.0C/W Commutating Diode.................................................. 4.0C/W Case to Ambient, C - A............................................ 60.0 C/W

Note 1. Exceeding these ratings could cause damage to the device.

Operating Junction Temperature Hermetic (R Package).................................................. 150 C Storage Temperature Range............................. to 150C Lead Temperature (Soldering, 10 Seconds)................... 300 C

R Package: Thermal Resistance-Junction to Case, JC.................. 4.0C/W Thermal Resistance-Junction to Ambient, JA.............. 40C/W

Note A. Junction Temperature Calculation: TA + (PD x JA). Note B. The above numbers for JC are maximums for the limiting

thermal resistance of the package in a standard mounting configuration. The JA numbers are meant to be guidelines for the thermal performance of the device/pcboard system. All of the above assume no ambient airflow.

SM600 Input Voltage, 2......................................... 50V Output Voltage, 2...................................... 50V Drive Input Reverse Voltage, 4................. 3V Output Current, I1........................................... 4A Drive Current, -4A 0.1A

Note 2. Range over which the device is functional.

(Unless otherwise specified, these specifications apply for the operating ambient temperature = 25C. Low duty cycle pulse testing techniques are used which maintains junction and case temperatures equal to the ambient temperature.)

Parameter On-State Voltage (Note 3) Diode Forward Voltage (Note 3) Off-State Current Diode Reverse Current

Test Conditions V4 = Rated input voltage V4 = Rated input voltage, V1 = Rated output voltage V1 = Rated output voltage, 125 C

Note 3. Pulse test: Duration = 300s, Duty Cycle 2%.

Dynamic Characteristics (See Figures & 2) (Notes & 5) Current Delay Time Current Rise Time Voltage Rise Time Voltage Storage Time Voltage Fall Time Current Fall Time Efficiency (Note 5)

AC TEST CIRCUIT AND SWITCHING TIME WAVEFORMS (Note 6)

Note 4. In switching an inductive load, the current will lead the voltage on turn-on and lag the voltage on turn-off (see Figure 2). Therefore, Voltage Delay Time (tDV) tdi + tri and Current Storage Time (t si) tsv + tfv. Note 5. The efficiency is a measure of internal power losses and is equal to Output Power divided by Input Power. The switching speed circuit of Figure 1, in which the efficiency measured, is represenative of typical operating conditions for the SM600 series switching regulators. Note 6. SM610/611/612 Test Circuit and waveforms are identical but of opposite polarity = -25V, VOUT = -5V, IDRIVE = +20mA).

FIGURE 4 - NEGATIVE OUTPUT DOWN/UP (BUCK-BOOST) CONVERTER

 

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