AP3845S8 Anachip Corporation, AP3845S8 Datasheet - Page 2

• Manufacturer Part Number: AP3845S8
• Description: High Performance Current Mode PWM Controller
• Manufacturer: Anachip Corporation

High Performance Current Mode PWM Controller
*Notes: 1. All voltages are with respect to pin 5, all currents are positive into the specified terminal.
(Unless otherwise stated, these specifications apply for 0≦T
REFERENCE SECTION
Anachip Corp.
www.anachip.com.tw
Symbol
∆V
Symbol
T
P
P
Block Diagram
Absolute Maximum Ratings
Electrical Characteristics
∆V
∆V
E
T
V
V
I
V
stg
o
tot
tot
REF/
L
o
I
i
i
e
REF
SC
REF
REF
N
∆T
CURRENT
Supply Voltage (low impedance source)
Supply Voltage (li < 30mA)
Output Current
Output Energy (capacitive load)
Analog Inputs (pins2,3)
Error Amplifier Output Sink Current
Power Dissipation at T
Power Dissipation at T
Storage Temperature Range
Lead Temperature (soldering 10s)
GROUND
SENSE
COMP
RT/CT
VFB
Vi
Output Short Circuit current
Total Output Variation
Temperature Stability
Output Noise Voltage
Long Term Stability
Load Regulation
7
5
4
2
1
3
Line Regulation
Output Voltage
Parameter
36V
( toggle flip flop used only in AP3844 and AP3845 )
16V
ERROR AMP.
OSC.
2.50V
Parameter
amb
amb
UVLO
≦50
≦25
0
0
C (PDIP8)
C (SOP8)
S/R
2R
10Hz≦f≦10KHz Tj=25
Line, Load, Temperature (Notes 2) 4.82
T
REF
R
5V
VREF GOOD
amb
LOGIC
amb
=125
≦70
Tj = 25
Test Conditions
1V
1mA≦I
2/8
12V≦V
0
o
C, 1000Hrs (Notes 2)
COMPARATOR
C for AP384X ; V
(Notes 2)
CURRENT
SENSE
0
C I
2)
o
≦20mA
i
≦25V
INTERNAL
S
R
T
0
BIAS
=1mA
Self Limiting
LATCH
-0.3 to 5.5
-65 to 150
PWM
0
C (Notes
i
Value
= 15V(note 5); R
±0.7
1.25
800
260
36
10
5
AP384X
AP3842/3/4/5
Min. Typ. Max.
4.90 5.00 5.10
T
= 10KΩ;C
AP384X
8
6
0.2
-85
50
2
3
5
OUTPUT
5V 50mA
Rev.1.0 Oct.11, 2004
VREF
T
Unit
-120
5.18
mW
mA
= 3.3nF)
0.4
µJ
o
o
W
20
25
25
V
A
V
C
C
mV/
Unit
mV
mV
mV
mA
µV
V
V
0
C