ISL1902FAZ-T7A Intersil, ISL1902FAZ-T7A Datasheet - Page 13

• Manufacturer Part Number: ISL1902FAZ-T7A
• Description: LED Lighting Drivers Dimmable AC Mains LED Driver PFC
• Manufacturer: Intersil

Specifications of ISL1902FAZ-T7A

• Rohs: yes
• Input Voltage: 4 V
• Operating Frequency: 320 Hz
• Maximum Supply Current: 14.5 mA
• Output Current: 1 A
• Maximum Operating Temperature: + 125 C
• Mounting Style: SMD/SMT
• Package / Case: QSOP-24
• Minimum Operating Temperature: - 40 C

Test Waveforms and Circuits
OUT
OC
FIGURE 9. OC +LEB TO OUT DELAY
13
LEADING EDGE BLANKING
OC PROPAGATION DELAY
OC + LEB TO OUT DELAY
OC THRESHOLD
FIGURE 11. ERROR AMPLIFER INPUT OFFSET TEST CIRCUIT
0.1µF
90/140µA
(Continued)
ISL1902
VDD
0.4V
90/140µA
10
11
12
1
2
3
4
5
6
7
8
9
VDD
PRELOAD
OFFREF
VREF
IOUT
CS+
CS-
REFIN
LPOUT
OC
FB2
FB1
INRUSH
MAINS
ISL1902
AC
10k
54k
5k
PWMOUT
DELADJ
INRUSH
Ω
Ω
Ω
RAMP
LOUT
VERR
LREF
GND
OUT
OVP
LFB
AC
24
23
22
21
20
19
18
17
16
15
14
13
PLACEHOLDER
FIGURE 10. AC MAINS TO INRUSH TIMING
470pF
t
DELAY
March 20, 2013
t
DELAY
FN7981.2