1CY1032Z PDF 데이터시트 ( Data ) - Sharp Microelectronics

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1CY1032Z 기능

기능

TO-263 Surface Mount Type Chopper Regulator

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Sharp Microelectronics

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PQ1CY1032Z

TO-263 Surface Mount Type

Chopper Regulator

s Features

1. Maximum switching current:3.5A

2. Built-in ON/OFF control function

3. Built-in soft start function to suppress overshoot of output

voltage in power on sequence or ON/OFF control sequence

4. Built-in oscillation circuit

(Oscillation frequency:TYP. 150kHz)

5. Built-in overheat protection function

6. Built-in overcurrent shut-down function

7. TO-263 package

8. PQ1CY1032ZZ:Sleeve-packaged product

PQ1CY1032ZP:Tape-packaged product

9. Variable output voltage

(Output variable range:Vref to 35V/−Vref to −30V)

[Possible to select step-down output/inversing output

s Applications

1. LCD monitors

2. Car navigation systems

3. Switching power supplies

s Absolute Maximum Ratings

(Ta=25°C)

Parameter

*1 Input voltage

Error input voltage

Input-output voltage

*2 Output to COM voltage

*3 Vsoft terminal voltage

Switching current

*4 Power dissipation

Symbol

VIN

VADJ

VI-O

VOUT

Vsoft

ISW

Rating

−1

−0.3 to +40

3.5

Unit

*5 Junction temperature Tj 150 ˚C

Operating temperature

Storage temperature

Topr −20 to +85 ˚C

Tstg −40 to +150 ˚C

*6Soldering temperature

Tsol

260

˚C

*1 Voltage between VIN terminal and COM terminal

*2 Voltage between VOUT terminal and COM terminal

*3 Voltage between VSOFT terminal and COM terminal

*4 PD:With infinite heat sink

*5 Over heat protection may operate at the condition Tj=125˚C to 150˚C

*6 For 10s

s Outline Dimensions

10.6MAX.

3.28±0.5

(Unit : mm)

3.5±0.5

(0.6)

1 C Y 1 0 3 2 Z ±2

(0.6)

(0.45)

1.05−+00..12

3−0.9−+00..12

Epoxy resin

(0.6)

(0.45)

1.05−+00..12

4−(1.7)

(0.6)

(0 to 0.25)

12345

1 VIN

2 VOUT

3 COM (Common to heat sink)

4 Oadj

5 Vsoft

❈ ( ) : Typical dimensions

Notice In the absence of confirmation by device specification sheets, SHARP takes no responsibility for any defects that may occur in equipment using any SHARP

devices shown in catalogs, data books, etc. Contact SHARP in order to obtain the latest device specification sheets before using any SHARP device.

Internet Internet address for Electronic Components Group http://www.sharp.co.jp/ecg/

Fig.8 Load Regulation vs. Output Current

1.5

Tj=25˚C

VIN=12V

VO=5V

PQ1CY1032Z

Fig.9 Line Regulation vs. Input Voltage

1.5

0.5 0.5

−0.5

0 0.5 1 1.5 2 2.5 3

Output current IO (A)

Fig.10 Oscillation Frequency Fluctuation vs.

Junction Temperature

VIN=12V

VO=5V

−2

−4

−6

−25

0 25 50 75 100

Junction temperature Tj (°C)

125

Fig.12 On Threshold Voltage vs. Junction

Temperature

VIN=12V

VTHH

2.5

VTHL

1.5

0.5

−25

VTH (ON)

0 25 50 75 100

Junction temperature Tj (°C)

125

Tj=25°C

VO=5V

IO=0.5A

−0.5

0 5 10 15 20 25 30 35 40

Input voltage VIN (V)

Fig.11 Overcurrent Detection Level Fluctuation vs.

Junction Temperature

−2

−4

−6

−8

−25

25 50 75 100 125

Junction temperature Tj (°C)

Fig.13 Overcurrent Shutdown Threshold

Voltage vs. Junction Temperature

VIN=12V

5.5

4.5

3.5

−25 0

25 50 75 100 125

Junction temperature Tj (°C)

4페이지

PQ1CY1032Z

s Thermal Protection Design

Internal power dissipation(P)of device is generally obtained by the following equation.

P=ISW(Average.) × VSAT × D' + VIN(voltage between VIN to COM terminal) × IQ'(consumption current)

Step down type

––––––––––––––

D'(Duty)= –T–(–pT–e–roni–o–d–)= ––V–I–NV––V–O–+SA–VT–F+–V–F––

ISW(Average)= IO(Output current.)

Polarity inversion type

––––––––––––––––––––

D'(Duty)=

–T–(–p–Te–ro–nio–d–)=

––––––––|–V–O–|+–V––F––––––

VIN+|VO|–VSAT+VF

ISW(Average)= –––1––1–D–'–– × IO(Output current.)

VF : Forward voltage of the diode

When ambient temperature Ta and power dissipation PD(MAX)during operation are determined, use Cu plate which allows the

element to operate within the safety operation area specified by the derating curve. Insufficient radiation gives an unfavorable

influence to the normal operation and reliability of the device.

s ON/OFF Control Terminal

1. In the following circuit,when Vsoft terminal 5 becomes low (loss than VTHON) by switching transistor Tr on, output voltage may be

turned OFF and the device becomes stand-by mode. Dissipation current at stand-by mode becomes Max.400µA.

When transistor Tr becomes OFF, output voltage can be ON.

External resistor Rs should be leaded to avold discharge current of CS, and not to break the transistor Tr.

2. Soft startup

When capacitor CS is loaded, output pulse gradually expanded and output voltage will start softly.

3. Over current protection

When the voltage of Vsoft 5 is more than VTHIL, over current shut down function will operate. And when the voltage of Vsoft 5 is

less than VTHIL, over current protection function will operate. Since the PQ1CY1032Z must use an capacitor CS, Vsoft 5 should be

more than VTHIL, over current shut down function will operate.

L IO

PQ1CY1032Z

VIN

CIN

Load

Tr R1

ON/OFF control signal

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Sharp Microelectronics에서 제조한 전자 부품 1CY1032Z은 전자 산업 및 응용 분야에서
광범위하게 사용되는 반도체 소자입니다.

1CY1032Z의 기능 및 특징 중 하나는 "TO-263 Surface Mount Type Chopper Regulator" 입니다.

일반적으로, Sharp Microelectronics에서 제조되는 전자부품들은 우수한 성능과
품질에 대한 신뢰성을 갖추고 있습니다.

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1CY1032Z	TO-263 Surface Mount Type Chopper Regulator	Sharp Microelectronics