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PDF AP3598A Data sheet ( Hoja de datos )
| Número de pieza | AP3598A | |
| Descripción | COMPACT DUAL-PHASE SYNCHRONOUS-RECTIFIED BUCK CONTROLLER | |
| Fabricantes | Diodes | |
| Logotipo |  |
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Description
A Product Line of
Diodes Incorporated
AP3598A
COMPACT DUAL-PHASE SYNCHRONOUS-RECTIFIED BUCK CONTROLLER
Pin Assignments
The AP3598A is a dual-phase synchronous buck PWM controller with
integrated drivers which are optimized for high performance graphic
card and computer applications. The IC is capable of delivering up to
60A output current capability, supporting 12V MOSFET drivers with
internal bootstrap diodes.
The dynamic output voltage could be implemented by analog method
with a switching device and a resistor network. The adjustable current
balance is achieved by RDS(ON) current sensing technique.
The AP3598A provides over current protection, input/output under
voltage protection, over voltage protection and over temperature
protection.
Other features include adjustable soft start, adjustable operation
frequency and so on. With aforementioned functions, the IC adopts U-
QFN4040-24 package.
(Top View)
Pin 1 Mark
24 23 22 21 20 19
BOOT1 1
18 BOOT2
HGATE1 2
EN 3
PSI 4
VID 5
REFADJ 6
THERM/
GND
25
17 HGATE2
16 PGOOD
15 VCC
14 TALERT#
13 TSNS
7 8 9 10 11 12
Features
Operate with Single Supply Voltage
Reference Voltage Output with 1% Accuracy
Simple Single Loop Voltage Mode Control
12V Bootstrapped Drivers with Internal Boot-strap Diodes
Adjustable Current Balancing by RDS(ON) Current Sensing
Adjustable Operation Frequency from 200kHz to7500kHz Per
Phase
External Compensation
Dynamic Output Voltage Adjustment
Adjustable Soft Start
Built-in UV and OV Protection Function
Built-in Over Current Protection
Built-in Thermal Shutdown Function
U-QFN4040-24 Package
Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
Halogen and Antimony Free. “Green” Device (Note 3)
Applications
U-QFN4040-24
Middle-High End Graphic Card
Generic Desktop and Consumer Electronics
Notes:
1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant.
2. See http://www.diodes.com/quality/lead_free.html for more information about Diodes Incorporated’s definitions of Halogen- and Antimony-free, "Green"
and Lead-free.
3. Halogen- and Antimony-free "Green” products are defined as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl) and
<1000ppm antimony compounds.
AP3598A
Document number: DS37261 Rev. 2 - 2
1 of 28
www.diodes.com
November 2014
© Diodes Incorporated
1 page  
Absolute Maximum Ratings (Note 5)
A Product Line of
Diodes Incorporated
AP3598A
Symbol
VCC, VPCC
VPHASE1, VPHASE2
VBOOT1_PHASE1,
VBOOT2_PHASE2
VBOOT1, VBOOT2
Parameter
VCC, PVCC Pin Voltage
PHASE to GND Voltage
BOOT to PHASE Voltage
BOOT to GND Voltage
VHGATE1, VHGATE2
HGATE to PHASE Voltage
VLGATE1, VLGATE2
–
θJA
PD
TJ
TSTG
TLEAD
–
–
LGATE to GND Voltage
Other Input, Output or I/O Pin Voltage
Thermal Resistance
Power Dissipation (TA = +25ºC)
Operating Junction Temperature Range
Storage Temperature
Lead Temperature (Soldering, 10sec)
ESD(Machine Model)
ESD(Human Body Model)
<200ns
>200ns
Rating
-0.3 to 15
-5 to 32
-0.3 to 26
-0.3 to 15
<200ns
>200ns
<200ns
>200ns
<200ns
>200ns
-0.3 to 42
-0.3 to 30
-5 to VBOOT_PHASEx+5
-0.3 to
VBOOT_PHASEx+0.3
-5 to VIN+5
-0.3 to VIN+0.3
0 to 6
40
2.5
-40 to +150
-65 to +150
+260
200
2000
Unit
V
V
V
V
V
V
V
ºC/W
W
ºC
ºC
ºC
V
V
Note 5:
Stresses greater than those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated under “Recommended Operating Conditions” is not implied.
Exposure to “Absolute Maximum Ratings” for extended periods may affect device reliability.
Recommended Operating Conditions
Symbol
VCC, VPCC
VOUT
TA
Parameter
Supply Input Voltage
Output Voltage
Operating Ambient Temperature
Min Max Unit
4.5 13.2 V
0.3 2 V
-40 +85 ºC
AP3598A
Document number: DS37261 Rev. 2 - 2
5 of 28
www.diodes.com
November 2014
© Diodes Incorporated
5 Page 
Performance Characteristics (Cont.)
Under Voltage Protection
(VIN=12V, VOUT=1.0V)
A Product Line of
Diodes Incorporated
AP3598A
Over Voltage Protection
(VIN=12V, VOUT=1.0V)
VOUT
1V/div
VPGOOD
2V/div
VHGATE
20V/div
VLGATE
10V/div
Time 400µs/div
Over Current Protection
(VIN=12V, VOUT=1.0V)
VOUT
0.5V/div
VPGOOD
2V/div
VHGATE
20V/div
VLGATE
10V/div
Time 400µs/div
Over Temperature Protection
(VIN=12V, VOUT=1.0V)
VOUT
0.5V/div
VPHASE
10V/div
VPGOOD
2V/div
IOUT
50A/div
Time 2ms/div
Pre-bias Start-up
(VIN=12V, VOUT=2V before Power On)
VOUT
0.5V/div
VPHASE
10V/div
VPGOOD
2V/div
Time 400µs/div
VOUT
1V/div
VLGATE1
10V/div
VLGATE2
10V/div
VCC
5V/div
Time 4ms/div
AP3598A
Document number: DS37261 Rev. 2 - 2
11 of 28
www.diodes.com
November 2014
© Diodes Incorporated
11 Page | ||
| Páginas | Total 28 Páginas | |
| PDF Descargar | [ Datasheet AP3598A.PDF ] | |
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