IL44608 Datasheet, PDF (4/13 Pages) IK Semicon Co., Ltd – External Components Reliable and Flexible SMPS Controller

IL44608N
ELECTRICAL CHARACTERISTICS (VCC = 12 V, for typical values TA = 25°C, for min/max values TA = –25°C to +85°C unless other-
wise noted) (Note2 )
Characteristic
Symbol
Min Typ Max Unit
DEMAGNETIZATION DETECTION SECTION (Note 3.)
Demag Comparator Threshold (V_pin1 increasing)
Demag Comparator Hysteresis (Note 4.)
Propagation Delay (Input to Output, Low to High)
Input Bias Current (V_demag = 50 mV)
Negative Clamp Level (I_demag = –1.0 mA)
Positive Clamp Level @ I_demag = 125 μA
Positive Clamp Level @ I_demag = 25 μA
OVERTEMPERATURE SECTION
V_dmg–th
30
-
69
mV
H_dmg
-
30
-
mV
t_PHL(In/Out)
-
300
-
ns
I_dem–lb
-0.6
-
-
μA
V_{cl–neg–dem}
-0.9
-
-0.4
V
V_{cl–pos–}
2.05
-
2.8
V
dem–H
V_{cl–pos–}
1.4
-
1.9
V
dem–L
Trip Level Over Temperature
T_high
Hysteresis
T_hyst
STAND–BY MAXIMUM CURRENT REDUCTION SECTION
-
160
-
ºC
-
30
-
ºC
Normal Mode Recovery Demag Pin Current Threshold
Idem–NM
20
-
30
μA
K FACTORS SECTION FOR PULSED MODE OPERATION
I_CCS / I_stup
IL44608N40
10 x K₁
2.4
-
3.8
-
I_CCS / I_stup
IL44608N75
10 x K₁
2.8
-
4.2
-
I_CCS / I_stup
I_CCL / I_stup
(V_stup – UVLO2) / (V_stup – UVLO1)
(UVLO1 – UVLO2) / (V_stup – UVLO1)
I_CS / V_csth
IL44608N100
10 x K₁
3.1
-
4.5
-
10³ x K₂
46
-
63
-
10² x K_sstup
1.8
-
2.6
-
10² x K_sl
90
-
150
-
10⁶ x Y_cstby
175
-
225
-
Demag ratio I_ovp / I_dem NM
Dmgr
3.0
-
5.5
-
(V3 _{1.0 mA} – V3 _{0.5 mA}) / (1.0 mA – 0.5 mA)
R3
-
1800
-
Ω
V_control Latch–off
V3
-
4.8
-
V
SUPPLY SECTION
Minimum Start–up Voltage
V_ilow
-
-
50
V
V_CC Start–up Voltage
V_stup–th
12.5
-
13.8
V
Output Disabling VCC Voltage After Turn On
V_uvlo1
9.5
-
10.5
V
Hysteresis (V_stup–th – V_uvlo1)
H_{stup–uvlo1}
-
3.1
-
V
V_CC Undervoltage Lockout Voltage
V_uvlo2
6.2
-
7.0
V
Hysteresis (V_uvlo1 – V_uvlo2)
H_{uvlo1–uvlo2}
-
3.4
-
V
Absolute Normal Condition V_CC Start Current @ (V_i = 100 V) and
(V_CC = 9.0 V)
–(I_CC)
7.0
-
12.8
mA
Switching Phase Supply Current (no load)
IL44608N40
2.0
-
3.6
IL44608N75
IL44608N100
I_CCS
2.4
-
4.0
mA
2.6
-
4.5
Latched Off Phase Supply Current
I_{CC–latch}
0.3
-
0.68
mA
Hiccup Mode Duty Cycle (no load)
_H_iccup
-
10
-
%
NOTE 2 : Adjust VCC above the start–up threshold before setting to 12 V. Low duty cycle pulse techniques are used during test to maintain junction
temperature as close to ambient as possible.
NOTE 3 : This function can be inhibited by connecting pin 1 to GND.
NOTE 4 : Guaranteed by design (non tested).
2011, February, Rev. 01