View AP450_245584.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

AP450
2 Channel Linear Controller with Enable Function
Features
- 2 Channel Linear Control Circuitries - Operating voltage can be up to 20V - Under voltage Lockout (UVLO) Protection - Current Limit - Over Voltage Protection - Power Good Function - 1.25V/0.8V internal voltage reference - 8-pin PDIP and SOP Pb-Free packages
General Description
The AP450 series integrates two channel linear controllers into a single chip, mainly designs for power-supply regulator. All the functions included an on-chip 1.25V/0.8V reference output, error amplifier, UVLO, current limit. During low VCC situation, the UVLO makes sure that the outputs are off until the internal circuit is operational normally.
Applications
- Backlight inverter - LCD Monitor - XDROM, XDSL Product
Pin Assignment
(Top View) GND 1 EN1/2 2 OUT1 3 FB1 4 8 AP450 7 6 5 Vcc VREF OUT2 FB2
Pin Descriptions
Pin Name GND EN1/2 OUT1 FB1, 2 OUT2 VREF Vcc Pin No. 1 2 3 4, 5 6 7 8 Description Signal Ground Channel 1/2 Enable Pin Linear Controller CH1output Voltage Feedback Linear Controller CH2 output 1.25V/0.8V Output Supply Voltage
SOP-8L/PDIP-8L
Ordering Information
AP450 X X X
Bandgap Version A: 1.25VBG B: 0.8VBG
Package N: PDIP-8L S: SOP-8L
Packing Blank: Tube A : Taping
This datasheet contains new product information. Anachip Corp. reserves the rights to modify the product specification without notice. No liability is assumed as a result of the use of this product. No rights under any patent accompany the sale of the product.
Rev. 1.1 Sep 7, 2004 1/6
AP450
2 Channel Linear Controller with Enable Function
Block Diagram
+
FB2
Amp _
LPF Buffer
Current Limit
OUT2
+
FB1
EN1/2
_
Amp
LPF Buffer
Current Limit
OUT1
VREF
2.5V
Bandgap Reference 1.25V/0.8V
UVLO
Vcc GND
Absolute Maximum Ratings
Symbol VCC VI VO1 / VO2 TOP TST TLEAD Supply voltage Amplifier input voltage CH1 / CH1Linear driver voltage to ground Operating temperature range Storage temperature range Lead temperature 1.6 mm(1/16 inch) from case for 10 seconds Parameter Rating 22 20 -0.3V20 -20 to +85 -65 to +150 260 Unit V V V
o o o
C C C
Recommended Operating Conditions
Symbol VCC VI VO1 / VO2 IFB RF TOP Supply voltage Amplifier input voltage CH1 / CH2 Linear driver voltage to ground Current into feedback terminal Feedback resistor Operating free-air temperature Parameter Min. 3.6 1.05 100 -20 Max. 20 1.45 Vcc-1.5 45 85 Unit V V V A k C
Anachip Corp. www.anachip.com.tw 2/6
Rev. 1.1 Sep 7, 2004
AP450
2 Channel Linear Controller with Enable Function
Electrical Characteristics (T =25C, V
A
CC
=6V)
Reference (REF) Symbol VOUT1/2
Parameter
VO1 / VO2 connect to FB1 / FB2 Output voltage change with temperature Under voltage lockout (UVLO) VUT Upper threshold voltage (VCC) VLWT Lower threshold voltage (VCC) VHT Hysteresis (VCC) Output section CH1 Current Limit ICL1 ICL2 CH2 Current Limit Enable function VIL EN pin logic input threshold voltage for EN1/2 VIH IIL IIH Total device Average supply current ICCA Thermal Resistor JA Thermal Resistor Junction to Ambient EN pin logic input current for EN1/2
Conditions AP450A AP450B TA = -20C ~ 25C TA = 25C ~ 85C IO(REF) = 0.1mA TA = 25C VCC=5V, VNOUT2=VFB2=0V VCC=5V, VNOUT3=VFB3=0V Low (regulator ON) High (regulator OFF) Low (regulator ON) High (regulator OFF)
Min. 1.225 0.784 25 25 2.0 -
Typ. 1.25 0.800 -0.1 -0.2 2.9 2.4 500 -
Max. 1.275 0.816 1 1 0.6 7 -
Unit V % % V V mV mA mA V V A A mA
O O
1.3 -0.03 0.3 5 90 60
SOP8 PDIP8
-
C/W C/W
Typical Application Circuit
Vcc=12V
220F
1
OFF ON
GND EN1/2 OUT1 FB1 V
Vcc
8 7 6 5
390 220F 180
3.3V
2 3
REF
0.1F 3.3V VOUT2=2.5V
VOUT3=1.8V 270 220F 220
OUT2 FB2
4
AP450B
Anachip Corp. www.anachip.com.tw 3/6
Rev. 1.1 Sep 7, 2004
AP450
2 Channel Linear Controller with Enable Function
Typical Characteristics
REFERENCE OUTPUT VOLTAGE v.s. POWER-SUPPLY VOLTAGE
Icc-Average Supply Current (mA)
0.805
AVERAGE SUPPLY CURRENT v.s. POWER-SUPPLY VOLTAGE
5 4 3 2 1 0 0 4 8 12 16 20
Vref- Reference Output Voltage (V)
0.8025 0.8
0.7975 0.795 4 6 8 10 12 14 16 18 20
Vcc-Power Supply Voltage (V)
Vcc - Power-Supply Voltgae (V)
AVERAGE SUPPLY CURRENT v.s. AMBIENT TEMPERATRUE
7 6 5 4 3 2 -50 -25 0 25 50 75 100
ICC - Average Supply Current (mA)
TA - Ambient Temperatrure()
Marking Information
(Top View)
8 5
Logo Part No.
AP450 X YY WW X
1 4
Bandgap version A: 1.25VBG B: 0.8VBG ID code: internal Xth week: 01~52 Year: "01" =2001 "02" =2002
~
SOP-8L/PDIP-8L
Anachip Corp. www.anachip.com.tw 4/6
Rev. 1.1 Sep 7, 2004
AP450
2 Channel Linear Controller with Enable Function
Package Information
(1) PDIP-8L (Plastic Dual-in-line Package )
D
E-PIN O0.118 inch
E1
E 15 (4X) PIN #1 INDENT O0.025 DEEP 0.006-0.008 inch
7 (4X) eB A2 A
C
L
B S e B1 B2
Symbol A A1 A2 B B1 B2 C D E E1 e L eB S
Dimensions in millimeters Min. Nom. Max. 5.33 0.38 3.1 3.30 3.5 0.36 0.46 0.56 1.4 1.52 1.65 0.81 0.99 1.14 0.20 0.25 0.36 9.02 9.27 9.53 7.62 7.94 8.26 6.15 6.35 6.55 2.54 2.92 3.3 3.81 8.38 8.89 9.40 0.71 0.84 0.97
A1
Dimensions in inches Min. Nom. Max. 0.210 0.015 0.122 0.130 0.138 0.014 0.018 0.022 0.055 0.060 0.065 0.032 0.039 0.045 0.008 0.010 0.014 0.355 0.365 0.375 0.300 0.313 0.325 0.242 0.250 0.258 0.100 0.115 0.130 0.150 0.330 0.350 0.370 0.028 0.033 0.038
Anachip Corp. www.anachip.com.tw 5/6
Rev. 1.1 Sep 7, 2004
AP450
2 Channel Linear Controller with Enable Function
Package Information (Continued)
(2) SOP- 8L(JEDEC Small Outline Package)
E
H
L VIEW "A" D 7 (4X) A2 A 0.015x45
7 (4X)
A1
e
B y
C
VIEW "A"
Symbol A A1 A2 B C D E e H L y
Dimensions In Millimeters Min. Nom. Max. 1.40 1.60 1.75 0.10 0.25 1.30 1.45 1.50 0.33 0.41 0.51 0.19 0.20 0.25 4.80 5.05 5.30 3.70 3.90 4.10 1.27 5.79 5.99 6.20 0.38 0.71 1.27 0.10 0O 8O
Dimensions In Inches Min. Nom. Max. 0.055 0.063 0.069 0.040 0.100 0.051 0.057 0.059 0.013 0.016 0.020 0.0075 0.008 0.010 0.189 0.199 0.209 0.146 0.154 0.161 0.050 0.228 0.236 0.244 0.015 0.028 0.050 0.004 0O 8O
Anachip Corp. www.anachip.com.tw 6/6
Rev. 1.1 Sep 7, 2004

▲Up To Search▲

Price & Availability of AP450

	To Download AP450 Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .