HA17384 datasheet(7/31 Pages) HITACHI

Part #	HA17384

Description	High Speed Current Mode PWM Control IC for Switching Power Supply

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Manufacturer	HITACHI [Hitachi Semiconductor]

Direct Link	http://www.renesas.com/eng

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7 / 31 page

HA17384SPS/SRP, HA17384HPS/HRP, HA17385HPS/HRP

7

Electrical Characteristics

(The condition is: Ta = 25°C, V

IN = 15 V, CT = 3300 pF, RT = 10 kΩ without notice)

Reference Part

Item

Symbol

Min

Typ

Max

Unit

Test Condition

Note

Reference output voltage

Vref

4.9

5.0

5.1

V

Io = 1 mA

Line regulation

Regline

—

20

50

mV

12 V

≤ V

IN ≤ 25 V

Load regulation

Regload

—

10

25

mV

–1 mA

≥ Io ≥ –20 mA

Output short current

los

–30

–100

–180

mA

Vref = 0V

Temperature stability

∆Vref

—

80

—

ppm/

°C

Io = –1 mA,

–20

°C ≤ Ta ≤ 105°C

1

Output noise voltage

V

N

—

100

—

µV

10 Hz

≤ fnoise ≤ 10 kHz

1

Notes: 1. Reference value for design.

Triangular Wave Oscillator Part

Item

Symbol

Min

Typ

Max

Unit

Test Condition

Note

Typical oscillating frequency

fosc Typ

47

52

57

kHz

C

T = 3300 pF,

R

T = 10 kΩ

Maximum oscillating

frequency

fosc Max

500

—

kHz

Supply voltage dependency of

oscillating frequency

∆fosc 1

—

±0.5

±2.0

%

12 V

≤ V

IN ≤ 25 V

Temperature dependency of

oscillating frequency

∆fosc 2

—

±5.0

—

%

–20

°C ≤ Ta ≤ 105°C1

Discharge current of C

T

Isink

CT

7.5

8.4

9.3

mA

V

CT = 2.0 V

Low level threshold voltage

V

TLCT

—

1.2

—

V

1

High level threshold voltage

V

THCT

—

2.8

—

V

1

Triangular wave amplitude

∆V

CT

—

1.6

—

V

∆V

CT = VTHCT – VTLCT

1

Notes: 1. Reference value for design.

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HA17384 Datasheet(PDF) 7 Page - Hitachi Semiconductor

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