ISL1902FAZ-T7A Intersil, ISL1902FAZ-T7A Datasheet - Page 12

• 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

Typical Performance Curves
Test Waveforms and Circuits
1.001
1.000
0.999
0.998
0.997
0.996
2.5
2.0
1.5
1.0
0.5
0
FIGURE 3. REFERENCE VOLTAGE vs TEMPERATURE
8V*
0.1µF
-40 -25 -10
0
FIGURE 7. RISE/FALL TIME TEST CIRCUIT
FIGURE 5. DELAY vs DELADJ RESISTANCE
*VDD set to 8V after exceeding UVLO start threshold
25
50
10
11
12
1
2
3
4
5
6
7
8
9
VDD
PRELOAD
OFFREF
VREF
IOUT
CS+
CS-
REFIN
OC
FB2
FB1
LPOUT
5
DELAY RESISTANCE (kΩ)
54k
ISL1902
5kΩ
75
Ω
TEMPERATURE (°C)
PWMOUT
INRUSH
DELADJ
20
RAMP
VERR
LOUT
LREF
GND
OUT
OVP
LFB
12
AC
24
23
22
21
20
19
18
17
16
15
14
13
100
35
0 TO 1V
120Hz
470pF
125
50
65
150
1nF
80
175
95
2.2nF
200
110 125
ISL1902
225
100
500
400
300
200
100
80
60
40
20
0
0
0
0
FIGURE 4. LPOUT vs AC SIGNAL DUTY CYCLE
FIGURE 6. PWMOUT DUTY CYCLE vs REFIN
AC CONDUCTION ANGLE (% DUTY CYCLE 120Hz)
50
10
t
R
100
FIGURE 8. RISE/FALL TIMES
20
150
30
200
40
REFIN (mV)
250
50
300
60
t
350
F
70
400
80
10%
90%
March 20, 2013
450
90
FN7981.2
500
100