MCP1790T-5002E/EB Microchip Technology, MCP1790T-5002E/EB Datasheet

MCP1790T-5002E/EB

Manufacturer Part Number

MCP1790T-5002E/EB

Description

High Voltage, LDO, 70 MA 3 DDPAK T/R

Manufacturer

Microchip Technology

Datasheet

1.MCP1791T-3302EDC.pdf (34 pages)

Specifications of MCP1790T-5002E/EB

Regulator Topology

Positive Fixed

Voltage - Output

Voltage - Input

6 ~ 30 V

Voltage - Dropout (typical)

0.7V @ 70mA

Number Of Regulators

Current - Output

70mA (Min)

Operating Temperature

-40°C ~ 125°C

Mounting Type

Surface Mount

Package / Case

TO-263-3, D²Pak (3 leads + Tab), TO-263AA

Number Of Outputs

Polarity

Positive

Input Voltage Max

30 V

Output Voltage

5 V

Output Type

Fixed

Dropout Voltage (max)

1.3 V at 70 mA

Output Current

70 mA

Line Regulation

+/- 0.0002 % / V

Load Regulation

+/- 0.2 %

Voltage Regulation Accuracy

2.5 %

Maximum Operating Temperature

+ 125 C

Mounting Style

SMD/SMT

Minimum Operating Temperature

- 40 C

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

Current - Limit (min)

Lead Free Status / Rohs Status

Lead free / RoHS Compliant

Other names

MCP1790T-5002E/EBTR

Available stocks

Company

Part Number

Manufacturer

Quantity

Price

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

MCP1790T-5002E/EB

Manufacturer:

MICROCHIP

Quantity:

12 000

Current page: 1 of 34
Download datasheet (991Kb)

Features

• 48V (43.5V ±10%) load dump protected for 180ms

• Wide steady state supply voltage, 6.0V - 30.0V

• Extended Junction Temperature Range:

• Fixed output voltages: 3.0V, 3.3V, 5.0V

• Low quiescent current: 70 µA typical

• Low shutdown quiescent current: 10 µA typical

• Output Voltage Tolerances of ±2.5% over the

• Maximum output current of 70 mA @ +125°C

• Maximum continuous input voltage of 30V

• Internal thermal overload protection, +157°C

• Internal short circuit current limit, 120 mA (typical)

• Short Circuit Current Foldback

• Shutdown Input option (MCP1791)

• Power Good Output option (MCP1791)

• High PSRR, -90 dB@100 Hz (typical)

• Stable with 1 µF to 1000 µF Tantalum and

• Stable with 4.7 µF to 1000 µF Ceramic Capacitors

Applications

• Low Voltage A/C powered (24VAC) Fire Alarms,

• Automotive Electronics

• Automotive Accessory Power Adapters

• Electronic Thermostat Controls

• Microcontroller power

with a 30 second repetition rate (FORD Test Pulse

G Loaded)

-40 to +125°C

temperature range

Junction Temperature

(typical) Junction Temperature

for +5V option.

Electrolytic Capacitors

Sensors, HVAC Controls

70 mA, High Voltage Regulator

MCP1790/MCP1791

General Description

The MCP1790/MCP1791 regulator provides up to 70 mA

of current. The input operating voltage range is specified

from 6.0V to 30V continuous, 48V absolute max, making

it ideal for automotive and commercial 12/24 VDC

systems.

The MCP1790/MCP1791 has a tight tolerance output

voltage load regulation of ±0.2% (typical) and a very

good line regulation at ±0.0002%/V (typical). The regu-

lator output is stable with ceramic, tantalum, and elec-

trolytic capacitors. The MCP1790/MCP1791 regulator

incorporates both thermal and short circuit protection.

The MCP1790 is the 3-pin version of the MCP1790/

MCP1791 family. The MCP1791 is the 5-pin version

and incorporates a Shutdown input signal and a Power

Good output signal.

The regulator is specifically designed to operate in the

automotive environment and will survive +48V (43.5V

±10%) load dump transients and double-battery jumps.

The device is designed to meet the stringent quiescent

current requirements of the automotive industry. The

device is also designed for the commercial low voltage

fire alarm/detector systems which use 24 VDC to sup-

ply the required alarms throughout buildings. The low

ground current, 110 µA (typ.), of the CMOS device will

provide a power cost savings to the end users over

similar bipolar devices. Typical buildings using hun-

dreds of 24V powered fire and smoke detectors can

see substantial savings on energy consumption and

wiring gage reduction compared to bipolar regulators.

The MCP1790 device will be offered in the 3-pin

DD-PAK, and SOT-223 packages.

The MCP1791 device will be offered in the 5-pin

DD-PAK, and SOT-223 packages.

The MCP1790/MCP1791 will have a junction tempera-

ture operating range of -40°C to +125°C.

DS22075A-page 1

Related parts for MCP1790T-5002E/EB

MCP1790T-5002E/EB Summary of contents

Page 1

... Automotive Electronics • Automotive Accessory Power Adapters • Electronic Thermostat Controls • Microcontroller power © 2008 Microchip Technology Inc. General Description The MCP1790/MCP1791 regulator provides current. The input operating voltage range is specified from 6.0V to 30V continuous, 48V absolute max, making it ideal for automotive and commercial 12/24 VDC systems ...

Page 2

... MCP1790/MCP1791 Package Types MCP1790 DDPAK-3 SOT-223 Pin GND (TAB OUT 4 GND (TAB) DS22075A-page 2 DDPAK MCP1791 SOT-223 Pin 1 SHDN GND (TAB OUT 5 PWRGD 6 GND (TAB) © 2008 Microchip Technology Inc. ...

Page 3

... TYPICAL APPLICATION On SHDN Off 30V 4.7 µ 8.0V to 16V IN 5Ω © 2008 Microchip Technology Inc. MCP1790/MCP1791 MCP1791 R 100 kΩ OUT GND MCP1790 OUT C 1 1.0 µF GND PWRGD 5. OUT µF Tantalum OUT C 2 1.0 µF Tantalum DS22075A-page 3 ...

Page 4

... SHDN = GND µ %/V 6.0V < V < 30V OUT (Note 3) < 0.1 Ω LOAD Peak Current V 6.0V < V < 30V IN ppm/°C Note 9 V Rising OUT(MAX) DROPOUT(MAX). ). Exceeding the maximum allowable power . = highest voltage measured over the tem- © 2008 Microchip Technology Inc. ...

Page 5

... Short Circuit Recovery Time will depend upon the thermal dissipation properties of the package and circuit board. 9: TCV = ( OUT OUT-HIGH OUT-LOW peraturerange lowest voltage measured over the temperature range. OUT-LOW © 2008 Microchip Technology Inc. MCP1790/MCP1791 = OUT(MAX) DROPOUT(MAX), = +25°C, SHDN > 2.4V. A (Note 5) of -40°C to +125°C. J ...

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... mA kHz OUT 7.0V µ mA, OUT V = 400 mVpp INAC f = 100 kHz 5. kHz < 5.0V R °C Rising Temperature °C Falling Temperature (Note 8) ms ≥ OUT(MAX) DROPOUT(MAX). ). Exceeding the maximum allowable power . = highest voltage measured over the tem- © 2008 Microchip Technology Inc. ...

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... Temperature Ranges Specified Temperature Range Operating Temperature Range Storage Temperature Range Package Thermal Resistances Thermal Resistance, 3LD DDPAK Thermal Resistance, 3LD SOT-223 Thermal Resistance, 5LD DDPAK Thermal Resistance, 5LD SOT-223 © 2008 Microchip Technology Inc. MCP1790/MCP1791 Symbol Min Typ Max T -40 +125 ...

Page 8

... OUT V = 3.3V OUT V = 5.0V OUT - 105 130 Junction Temperature (°C) Quiescent Current vs 3.3V OUT V = 3.0V OUT V = 5.0V OUT Load Current (mA) Ground Current vs. Load V = 3.0V REG SHDN = 10V, 30V - 105 130 Temperature (° Temperature. SHDN © 2008 Microchip Technology Inc. ...

Page 9

... V =3.3V REG -0.20 V =3.0V REG -0.25 -0.30 -45 - Temperature (°C) FIGURE 2-9: Load Regulation vs. Temperature. © 2008 Microchip Technology Inc. MCP1790/MCP1791 = 10.0 µF Ceramic (X7R and device is MCP1790. SHDN IN, 5.04 = 3.3V 5. 30V 5.02 5.01 5.00 4.99 4.98 4.97 4.96 -45°C -45° ...

Page 10

... OUT 100 1000 FIGURE 2-17: (MCP1791). 100 1000 FIGURE 2-18: (MCP1791 mA, Temperature = +25°C, OUT =5.0V R =7. 400 mV p-p INAC =0 μF IN = 100 1000 Frequency (kHz) Power Supply Ripple Startup from V IN Startup from Shutdown © 2008 Microchip Technology Inc. ...

Page 11

... Ceramic (X7R), C OUT V = 6.0V kΩ PWRGD_PULLUP OUT FIGURE 2-19: Dynamic Line Response. FIGURE 2-20: Dynamic Line Response. FIGURE 2-21: Dynamic Load Response. © 2008 Microchip Technology Inc. MCP1790/MCP1791 = 10.0 µF Ceramic (X7R and device is MCP1790. SHDN IN, FIGURE 2-22: 5.0 4.5 4.0 3.5 3 ...

Page 12

... Note: Unless otherwise indicated 4.7 uF Ceramic (X7R), C OUT V = 6.0V kΩ PWRGD_PULLUP OUT 3.3V OUT Input Voltage (V) FIGURE 2-25: Startup Ground Current. DS22075A-page 12 = 10.0 µF Ceramic (X7R and device is MCP1790. SHDN IN OUT V = 5.0V OUT mA, Temperature = +25°C, OUT © 2008 Microchip Technology Inc. ...

Page 13

... The MCP1790 is stable with ceramic, tantalum, and electrolytic capacitors. See Section 4.7 “Output Capacitor” for output capacitor selection guidance. © 2008 Microchip Technology Inc. MCP1790/MCP1791 Table 3-1 and Table 3-2. ...

Page 14

... REVERSE BATTERY PROTECTION temperature An external reverse battery blocking diode may be used to provide polarity protection. Soft Start - Error Amplifier en + Short Circuit Protection en VIN Monitoring VOUT VIN T1 T2 Temp Sensor VOUT 510k 490k PWRGD Delay GND © 2008 Microchip Technology Inc. ...

Page 15

... OUT C = 1.0 µF LOAD FIGURE 4-2: Shutdown Input Timing Diagram. © 2008 Microchip Technology Inc. MCP1790/MCP1791 4.6 Low Voltage Shutdown The MCP1790/MCP1791 incorporates a Low Voltage Shutdown circuit that turns off the output of the regula- tor whenever the input voltage, V specified turn off voltage, V ...

Page 16

... Tantalum or Electrolytic cap. Stable Tantalum, Electrolytic and Ceramic cap. Instable 1 10 Load Capacitor [uF] is lower than 3.5V, I REG OUT REG is near 0 volts. REG is lower than 2.5V, I REG OUT REG is near 0 volts. REG with 1000 100 © 2008 Microchip Technology Inc. ...

Page 17

... Therefore, when pulling PWRGD to VIN instead the designer must be OUT aware of the PWRGD signal going high while the input voltage is rising at startup. Pulling PWRGD to V removes the startup pulse. © 2008 Microchip Technology Inc. MCP1790/MCP1791 V PWRGD_TH V OUT ) level ...

Page 18

... Thermal resistance from junction to ambient. × Rθ MAX JA = Rise in device junction temperature over the ambient temperature. = Maximum device power dissipation. = Thermal resistance from junction-to-ambient RISE A = Junction Temperature. = Rise in device junction temperature over the ambient temperature. = Ambient temperature. © 2008 Microchip Technology Inc. ...

Page 19

... C/Watt ° JRISE T = 59.2 C ° JRISE © 2008 Microchip Technology Inc. MCP1790/MCP1791 5.3.1.2 Junction Temperature Estimate To estimate the internal junction temperature, the calculated temperature rise is added to the ambient or offset temperature. For this example, the worst-case junction temperature is estimated below. T ...

Page 20

... Note: In the event the full Microchip part number cannot be marked on one line, it will be carried over to the next line, thus limiting the number of available characters for customer-specific information. DS22075A-page 20 Example: MCP1790 e 50EEB^^ 3 0730256 Example: 179050 EDB0730 256 © 2008 Microchip Technology Inc. ...

Page 21

... Note: In the event the full Microchip part number cannot be marked on one line, it will be carried over to the next line, thus limiting the number of available characters for customer-specific information. © 2008 Microchip Technology Inc. MCP1790/MCP1791 Example: MCP1791 e ...

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... Microchip Technology Inc. MCP1790/MCP1791 DS22075A-page 27 ...

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Page 31

... PART NO Device Output Feature Tolerance Voltage Code Device: MCP1790 High Voltage Regulator MCP1790T High Voltage Regulator Tape and Reel MCP1791 High Voltage Regulator MCP1791T High Voltage Regulator Tape and Reel Output Voltage *: 30 = 3.0V “Standard” 3.3V “Standard” 5.0V “Standard” ...

Page 32

Page 33

... PowerMate, PowerTool, REAL ICE, rfLAB, Select Mode, Total Endurance, UNI/O, WiperLock and ZENA are trademarks of Microchip Technology Incorporated in the U.S.A. and other countries. SQTP is a service mark of Microchip Technology Incorporated in the U.S.A. All other trademarks mentioned herein are property of their respective companies. ...

Page 34

... Fax: 886-3-572-6459 Taiwan - Kaohsiung Tel: 886-7-536-4818 Fax: 886-7-536-4803 Taiwan - Taipei Tel: 886-2-2500-6610 Fax: 886-2-2508-0102 Thailand - Bangkok Tel: 66-2-694-1351 Fax: 66-2-694-1350 © 2008 Microchip Technology Inc. EUROPE Austria - Wels Tel: 43-7242-2244-39 Fax: 43-7242-2244-393 Denmark - Copenhagen Tel: 45-4450-2828 Fax: 45-4485-2829 France - Paris Tel: 33-1-69-53-63-20 ...

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