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mA78S40

PinoutSpecifications Rating Symbol Value Unit Power Supply Voltage VCC 40 V Op Amp Power Supply Voltage VCC (Op Amp) 40 V Common Mode Input Range(Comparator and Op Amp) VICR 0.3 to VCC V Differential Input Voltage (Note 2) VID ± 30...

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SeekIC No. : 004407999 Detail

mA78S40: PinoutSpecifications Rating Symbol Value Unit Power Supply Voltage VCC 40 V Op Amp Power Supply Voltage VCC (Op Amp) 40 V Common Mode Input Range(Comp...

mA78S40 Data Sheet

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Part Number:
mA78S40
Supply Ability:
5000

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  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Upload time: 2024/11/27

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Product Details

Description



Pinout

Connection Diagram


Specifications

Rating
Symbol
Value
Unit
Power Supply Voltage
VCC
40
V
Op Amp Power Supply Voltage
VCC (Op Amp)
40
V
Common Mode Input Range
(Comparator and Op Amp)
VICR
0.3 to VCC
V
Differential Input Voltage (Note 2)
VID
± 30
V
Output Short Circuit Duration (Op Amp)
Continuous
Reference Output Current
Iref
10
mA
Voltage from Switch Collectors to Gnd
40
V
Voltage from Switch Emitters to Gnd
40
V
Voltage from Switch Collectors to Emitter
40
V
Voltage from Power Diode to Gnd
40
ReversePower Diode Voltage
VDR
40
V
Current through Power Switch
ISW
1.5
A
Current through Power Diode
ID
1.5
A
Power Dissipation and Thermal Characteristics:
Plastic Package (TA = + 25°C)
Derate above + 25°C (Note 1)
PD
1/RqJA
1500
14
mW
mW/°C
Storage Temperature Range
Tstg
65 to + 150
°C
Operating Temperature Range
mA78S40V
mA78S40C
TA
40 to +85
0 to +70
°C
NOTES: 1. Tlow = 40° for mA78S40PV Thigh = +85° for mA78S40PV = 0° for mA78S40PC = +70° for mA78S40PC
             2. For supply voltages less than 30 V the maximum differential input voltage (Error Amp and Op Amp) is equal
                 to the supply voltage.


Description

The  mA78S40 is a switching regulator subsystem, consisting of a temperature compensated voltage reference, controlledduty cycle oscillator with an active current limit circuit, comparator, highcurrent and highvoltage output switch, capable of 1.5 A and 40 V, pinnedout power diode and an uncommitted operational amplifier, which can be powered up or down independent of the IC supply. The switching output can drive external NPN or PNP transistors when voltages greater the 40 V, or currents in excess of 1.5 A, are required. Some of the features are widesupply voltage range, low standby current, high efficiency and low drift. The mA78S40 is available in commercial (0° to + 70°C), and automotive (40° to + 85°C) temperature ranges.

Some of the applications include use in stepup, stepdown, and inverting regulators, with extremely good results obtained in batteryoperated systems.
• Output Adjustable from 1.25 V to 40 V
• Peak Output Current of 1.5 A Without External Transistor
• 80 dB Line and Load Regulation
• Operation from 2.5 V to 40 V Supply
• Low Standby Current Drain
• High Gain, High Output Current, Uncommitted Op Amp




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