Data Sheet

KA7552A/KA7553A
Electrical Characteristics (Continued)
(V
CC
= 18V, F
OSC
= 135kHz, T
A
= 25°C, unless otherwise specified)
Note :
1. These parameters, although guaranteed, are not 100% tested in production.
2. Recommend operating condition :
- Vcc(min) = 12V
-R
T
= 3.3kΩ ~ 10kΩ
- Oscillation frequency = 5kHz ~ 600kHz
- Soft start capacitor(C
S
) = 0.1uF ~ 1uF
Parameter Symbol Conditions Min. Typ. Max. Unit
UNDER VOLTAGE LOCKOUT SECTION
Start-up threshold voltage V
TH(ST)
- 15.5 16.0 16.5 V
Minimum operating voltage V
OPR(Min)
- 8.20 8.70 9.20 V
Hysteresis V
HYS
- 6.40 7.30 8.20 V
ON/OFF CONTROL SECTION
Source current(pin8) I
SOURCE(CS)
V
PIN8
= 0V -15 -10 -5 uA
On threshold voltage V
TH(ON)
V
PIN8
: OFF->ON 0.45 0.56 0.70 V
Off threshold voltage V
TH(OFF)
V
PIN8
: ON -> OFF 0.30 0.42 0.55 V
OUTPUT SECTION
Low output voltage V
OL
I
O
= 100mA, V
CC
= 18V - 1.3 1.8 V
High output voltage V
OH
I
O
= -100mA, V
CC
= 18V 16.0 16.5 18.0 V
Rise time
(Note1)
T
R
No load - 50 - ns
Fall time
(Note1)
T
F
No load - 50 - ns
OVERALL
Stand-by current I
SB
V
CC
= 14V - 90 150 uA
Operating current I
CC(OPR)
V
PIN2
= 0V - 9 15 mA
Power supply current off I
CC(OFF)
V
PIN8
= 0V - 1.1 1.8 mA
Power supply current shutdown I
CC(SD)
V
PIN8
= 7.6V - 1.1 1.8 mA
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