ISL8840AABZ 查看數據表（PDF） - Renesas Electronics

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产品描述 (功能)

生产厂家

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 (Continued)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNITS

Amplitude, Peak to Peak

Static Test

-

1.75

-

V

RTCT Discharge Voltage (Valley Voltage)

Static Test

-

1.0

-

V

Discharge Current

RTCT = 2.0V

6.2

8.0

8.5

mA

OUTPUT

Gate VOH

Gate VOL

Peak Output Current

Rise Time

Fall Time

GATE VOL UVLO Clamp Voltage

PWM

VDD - OUT, IOUT = -200mA

OUT - GND, IOUT = 200mA

COUT = 1nF (Note 9)

COUT = 1nF (Note 9)

COUT = 1nF (Note 9)

VDD = 5V, ILOAD = 1mA

-

1.0

2.0

V

-

1.0

2.0

V

-

1.0

-

A

-

20

40

ns

-

20

40

ns

-

-

1.2

V

Maximum Duty Cycle

(ISL8840A, ISL8842A, ISL8843A)

COMP = VREF

94.0

96.0

-

%

Maximum Duty Cycle

(ISL8841A, ISL8844A, ISL8845A)

COMP = VREF

47.0

48.0

-

%

Minimum Duty Cycle

COMP = GND

-

-

0

%

NOTES:

7. Specifications at -55°C and +125°C are guaranteed by +25°C test with margin limits.

8. This is the VDD current consumed when the device is active but not switching. Does not include gate drive current.

9. These parameters, although guaranteed, are not 100% tested in production.

10. Adjust VDD above the start threshold and then lower to 15V.

Typical Performance Curves

1.01

1.00

0.99

0.98

-60 -40 -20

0 20 40 60 80 100 120 140

TEMPERATURE (°C)

FIGURE 1. FREQUENCY vs TEMPERATURE

1.001

1.000

0.999

0.998

0.997

0.996

0.995-60 -40 -20 0 20 40 60 80 100 120 140

TEMPERATURE (°C)

FIGURE 2. REFERENCE VOLTAGE vs TEMPERATURE

FN6320 Rev 3.00

April 18, 2007

Page 9 of 15

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