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Anachip
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AP2001 Datasheet Preview

AP2001 Datasheet

Monolithic Dual Channel PWM Controller

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AP2001 pdf
Monolithic Dual Channel PWM Controller
AP2001
Features
- Dual PWM Control Circuitry
- Operating voltage can be up to 50V
- Adjustable Dead Time Control (DTC)
- Under voltage Lockout (UVLO) Protection
- Short Circuit Protection (SCP)
- Variable Oscillator Frequency...... 500Khz Max
- 2.5V voltage reference Output
- 16-pin PDIP and SOP packages
Applications
- Backlight inverter
- DC/DC converts in computers, etc.
General Description
The AP2001 integrates Pulse-width-Modulation
(PWM) control circuit into a single chip, mainly
designs for power-supply regulator. All the functions
included an on-chip 2.5V reference output, two
error amplifiers, an adjustable oscillator, two
dead-time comparators, UVLO, SCP, DTC circuitry,
and dual common-emitter(CE) output transistor
circuit.
Recommend the output CE transistors as pre-driver
for Driving externally. The DTC can provide from
0% to 100%. Switching frequency can be
adjustable by trimming RT and CT. During low VCC
situation, the UVLO makes sure that the outputs
are off until the internal circuit is operational
normally.
Pin Assignments
( Top View )
CT
RT
EA1+
EA1-
FB1
DTC1
OUT1
GND
1
2
3
4
5
6
7
8
16 REF
15 SCP
14 EA2+
13 EA2-
12 FB2
11 DTC2
10 OUT2
9 VCC
PDIP/SOP
Pin Descriptions
Name
CT
RT
EA+
EA -
FB
DTC
OUT
GND
VCC
SCP
REF
Description
Timing Capacitor
Timing Resistor
Error Amplifier Input(+)
Error Amplifier Input(-)
Feedback Loop Compensation
Dead Time Control
Pre-driver Output
Ground
Supply Voltage
Short Circuit Protection
Voltage Reference
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. 0.3 Feb 20, 2004
1/8



Anachip
Anachip

AP2001 Datasheet Preview

AP2001 Datasheet

Monolithic Dual Channel PWM Controller

No Preview Available !

AP2001 pdf
Monolithic Dual Channel PWM Controller
AP2001
Ordering Information
AP2001 X X X
Package
N: PDIP-16L
S: SOP-16L
Block Diagram
VCC
Lead Free
Blank : Normal
L : Lead Free Package
Packing
Blank: Tube
A : Taping
SCP
RT CT
DTC1
REF
Bandgap
Reference
EA1 +
EA1 -
FB1
EA2+
EA2 -
FB2
Error Amplifier 1
1.18V
Error Amplifier 2
+
-
+
Oscillator
MAX.500KHz
170K
VREF
UVLO
R
R
S
+
+ OUT1
-
PWM Amplifier 1
-
+
+
PWM Amplifier 2
OUT2
GND
DTC2
Anachip Corp.
www.anachip.com.tw
Rev. 0.3 Feb 20, 2004
2/8


Part Number AP2001
Description Monolithic Dual Channel PWM Controller
Maker Anachip
Total Page 8 Pages
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