ISL8840AABZ 데이터 시트보기 (PDF) - Renesas Electronics

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ISL8840AABZ

High Performance Industry Standard Single-Ended Current Mode PWM Controller

Renesas Electronics 

ISL8840A, ISL8841A, ISL8842A, ISL8843A, ISL8844A, ISL8845A

Electrical Specifications

ISL884xAM - Recommended operating conditions unless otherwise noted. Refer to Block Diagram and

Typical Application schematic. VDD = 15V, RT = 10k, CT = 3.3nF, TA = -55 to +125°C (Note 7), Typical values

are at TA = +25°C

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNITS

UNDERVOLTAGE LOCKOUT

START Threshold (ISL8840A, ISL8841A)

6.5

7.0

7.5

V

START Threshold (ISL8843A, ISL8845A)

8.0

8.4

9.0

V

START Threshold (ISL8842A, ISL8844A)

(Note 10)

13.3

14.3

15.3

V

STOP Threshold (ISL8840A, ISL8841A)

6.1

6.6

6.9

V

STOP Threshold (ISL8843A, ISL8845A)

7.3

7.6

8.0

V

STOP Threshold (ISL8842A, ISL8844A)

8.0

8.8

9.6

V

Hysteresis (ISL8840A, ISL8841A)

-

0.4

-

V

Hysteresis (ISL8843A, ISL8845A)

-

0.8

-

V

Hysteresis (ISL8842A, ISL8844A)

-

5.4

-

V

Startup Current, IDD

Operating Current, IDD

Operating Supply Current, ID

REFERENCE VOLTAGE

VDD < START Threshold

(Note 8)

Includes 1nF GATE loading

-

90

125

A

-

2.9

4.0

mA

-

4.75

5.5

mA

Overall Accuracy

Over line (VDD = 12V to 30V), load, 4.900

5.000

5.050

V

temperature

Long Term Stability

Current Limit, Sourcing

TA = +125°C, 1000 hours (Note 9)

-

5

-20

-

-

mV

-

mA

Current Limit, Sinking

5

-

-

mA

CURRENT SENSE

Input Bias Current

CS Offset Voltage

COMP to PWM Comparator Offset Voltage

Input Signal, Maximum

VCS = 1V

VCS = 0V (Note 9)

VCS = 0V (Note 9)

-1.0

-

1.0

A

95

100

105

mV

0.80

1.15

1.30

V

0.97

1.00

1.03

V

Gain, ACS = VCOMP/VCS

CS to OUT Delay

0 < VCS < 910mV, VFB = 0V

2.5

3.0

3.5

V/V

-

35

60

ns

ERROR AMPLIFIER

Open Loop Voltage Gain

(Note 9)

60

90

-

dB

Unity Gain Bandwidth

(Note 9)

1.0

1.5

-

MHz

Reference Voltage

FB Input Bias Current

COMP Sink Current

COMP Source Current

COMP VOH

COMP VOL

PSRR

VFB = VCOMP

2.460

2.500

2.535

V

VFB = 0V

-1.0

-0.2

1.0

A

VCOMP = 1.5V, VFB = 2.7V

1.0

-

-

mA

VCOMP = 1.5V, VFB = 2.3V

-0.4

-

-

mA

VFB = 2.3V

4.80

-

VREF

V

VFB = 2.7V

0.4

-

1.0

V

Frequency = 120Hz, VDD = 12V to

60

80

-

dB

30V (Note 9)

OSCILLATOR

Frequency Accuracy

Frequency Variation with VDD

Temperature Stability

Initial, TA = +25°C

TA = +25°C, (f30V - f10V)/f30V

(Note 9)

48

51

53

kHz

-

0.2

1.0

%

-

-

5

%

FN6320 Rev 3.00

April 18, 2007

Page 8 of 15

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