IR1110 International Rectifier Corp., IR1110 Datasheet - Page 27

• Manufacturer Part Number: IR1110
• Description: Soft Start Controller Ic In A 64-lead Mqfp Package
• Manufacturer: International Rectifier Corp.

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L N L S L E D
IR1110)
(PIN40
T O
T 0 T 1
1.0msec < T0 - T1 < 80msec
100msec < T1 - T2
T3 - T4 < 40msec
VSS should track VDD within +/-10% during rise/fall time
Note: T4 is the event of Undervoltage Lockout
T 2
2 2 0 K 5 % 1 / 1 6 W
N O T E S :
(1) If Pin14 to VDD, use CUVLO=.1uF and omit D1,R2
( 2 ) I f P i n 1 4 t o V SS , u s e CU V L O =. 2 2 u F a n d om i t C 1,D 1 ,R 2
(3) If power supply rise time < 80msec (Figure 11), connect pin 14 to VSS, use CUVLO=.22uF, and omit C1,D1,R2.
(4) If Figure 13 circuit is used. Connect pin 14 to VDD. Use CUVLO=0.22uF and R1=0.
(5) Set RLS1, RLS2 for LNLED low above 85% of min operating voltage
S H U T D O W N
.1uF
C 1
Figure 12 Loss of Line and Low Line Shutdown Circuits
L O S S O F
CIRCUIT
L I N E
1 / 1 6 W
2 7 K
-4.0V
4.0V
R 1
5 %
Figure 11 Power Supply Requirement
2 N 4 4 0 1
Q 1
ADVANCE INFORMATION
11.0V min
2 N 4 4 0 1
Q 2
S H U T D O W N
T 3
L O W L I N E
CIRCUIT
4 7 K 5 % 1 / 1 6 W
T 4
1 N 4 1 4 8
D 1
1 / 1 6 W
2 4 K
R 2
5 %
V O L T A G E
A C L I N E
S C R D r i v e r
S u p p l y
V S S
T O L N L E D
V D D
IR1110)
U V L O C A P
(PIN42
1 P H L E D
IR1110)
IR1110)
(PIN24
(PIN41
IR1110
T O
T O
< 0 >
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