KA1L0380B/KA1L0380RB/KA1M0380RB/KA1H0380RB

4

Electrical Characteristics (CONTROL part)

(Ta=25

°C unless otherwise specified)

Notes:

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

2. These parameters, although guaranteed, are tested in EDS (wafer test) process

Parameter

Symbol

Condition

Min.

Typ.

Max.

Unit

REFERENCE SECTION

Vref

Ta=25

°C

4.80

5.00

5.20

V

Vref/

∆T

−25°C≤Ta≤+85°C-

0.3

0.6

mV/

°C

OSCILLATOR SECTION

Initial accuracy

KA1L0380B

45

50

55

kHz

KA1L0380RB

45

50

55

KA1M0380RB

61

67

73

KA1H0380RB

90

100

110

∆F/∆T

−25°C≤Ta≤+85°C-

±5

±10

%

PWM SECTION

Maximum duty cycle

Dmax

KA1L0380B

74

77

80

%

KA1L0380RB

74

77

80

KA1M0380RB

74

77

80

KA1H0380RB

64

67

70

FEEDBACK SECTION

Feedback source current

Ta=25

°C, 0V≤Vfb≤3V

0.7

0.9

1.1

mA

Shutdown delay current

Idelay

Ta=25

4.0

5.0

6.0

µA

OVER CURRENT PROTECTION SECTION

Over current protection

Max. inductor current

1.89

2.15

2.41

A

UVLO SECTION

Start threshold voltage

Vth(H)

-

14

15

16

V

Minimum operating voltage

Vth(L)

After turn on

9

10

11

V

TOTAL STANDBY CURRENT SECTION

Start current

0.1

0.3

0.45

mA

Operating supply current

(control part only)

Ta=25

°C

6

12

18

mA

30

32.5

35

V

SHUTDOWN SECTION

Shutdown Feedback voltage

-6.9

7.5

8.1

V

-

140

160

-

°C

Over voltage protection voltage

-23

25

28

V