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Número de pieza | uP6209 | |
Descripción | Compact Dual-Phase Synchronous-Rectified Buck Controller | |
Fabricantes | uPI Semiconductor | |
Logotipo | ||
Hay una vista previa y un enlace de descarga de uP6209 (archivo pdf) en la parte inferior de esta página. Total 23 Páginas | ||
No Preview Available ! uP6209
Compact Dual-Phase
Synchronous-Rectified Buck Controller
General Description
Features
The uP6209 is a compact dual-phase synchronous-rectified
Buck controller specifically designed to deliver high quality
output voltage for high power applications. This part is
capable of delivering up to 60A output current thanks to its
embedded bootstrapped drivers that support 12V + 12V
driving capability. The uP6209 features configurable gate
driving voltage for maximum efficiency and optimal
performance. The built-in bootstrap diode simplifies the
circuit design and reduces external part count and PCB
space.
The output voltage is precisely regulated to internal 0.6V
or external reference voltage from 0.4V to 2.5V. The uP6209
adopts DCR current sensing technique for channel current
balance, over current protection, and output current
indication. The uP6209 offers a regulated 5V voltage with
20mA output current capability for other peripheral circuitry.
A MODE pin programs single- or two- phase operation
making the uP6209 ideally suitable for dual power input
applications like PCIE interfaced graphic cards.
This part features comprehensive protection functions
including over current protection, input/output under voltage
protection, over voltage protection and over temperature
protection.
Other features include adjustable soft start, adjustable
operation function, quick response to step load transient,
and power OK. With aforementioned functions, this part
provides customers a compact, high efficiency, well-
protected and cost-effective solutions. This part comes to
VQFN4x4-24L package.
Operate with 4.5V ~13.2V Supply Voltage
Selectable External or Internal 0.6V Reference
Support Single- and Two- Phase Operation
5VCC with 20mA Output Current Capability
±2.0% Over Line Voltage and Temperature
Simple Single-Loop Voltage-Mode Control
12V Bootstrapped Drivers with Internal
Bootstrap Diode
DCR Current Sensing
Adjustable Operation Frequency form 50kHz to
1MHz Per Phase
External Compensation
Adjustable Over Current Protection and Output
Current Indication
External Reference
Adjustable Soft Start
VQFN4x4-24L Package
RoHS Compliant and 100% Lead (Pb)-Free
Applications
Middle-High End GPU Core Power
High End Desktop PC Memory Core Power
Low Output Voltage, High Power Density DC-DC
Converters
Voltage Regulator Modules
Pin Configuration
Ordering Information
Order Number Package Type
uP6209AQAG VQFN 4x4-24L
Remark
Note: uPI products are compatible with the current IPC/
JEDEC J-STD-020 and RoHS requirements. They are 100%
matte tin (Sn) plating and suitable for use in SnPb or Pb-
free soldering processes.
18 17 16 15 14 13
PHASE2 19
LGATE2 20
NC 21
VCC 22
LGATE1 23
PHASE1 24
PGND
12 COMP
11 RT
10 NC
9 CSP2
8 CSN2
7 CSN1
123456
VQFN4x4-20
uPI Semiconductor Corp., http://www.upi-semi.com
Rev. F00, File Name: uP6209-DS-F0000
1
1 page uP6209
Functional Pin Description
No. Pin Name Pin Function
Bootstrap Supply for the floating upper gate driver of channel 2. Connect the bootstrap
17
BOOT2
capacitor between BOOT2 pin and the PHASE2 pin to form a bootstrap circuit. The bootstrap
capacitor provides the charge to turn on the upper MOSFET. Typical values for CBOOT range from
0.1uF to 0.47uF. Ensure that CBOOT is placed near the IC.
Upper Gate Driver Output for Channel 2. Connect this pin to the gate of upper MOSFET.
18 UGATE2 This pin is monitored by the adaptive shoot-through protection circuitry to determine when the
upper MOSFET has turned off.
Switch Node for Channel 2. Connect this pin to the source of the upper MOSFET and the
drain of the lower MOSFET. This pin is used as the sink for the UGATE2 driver. This pin is also
19 PHASE2 monitored by the adaptive shoot-through protection circuitry to determine when the upper
MOSFET has turned off. A Schottky diode between this pin and ground is recommended to
reduce negative transient voltage which is common in a power supply system.
Lower Gate Driver Output for Channel 2. Connect this pin to the gate of lower MOSFET.
20 LGATE2 This pin is monitored by the adaptive shoot-through protection circuitry to determine when the
lower MOSFET has turned off.
21
VCCDRV
Driver for External Linear Regulator. This pin is the drive output for that external linear
regulator. Connect this pin to the base/gate of NPN/NMOS transistor as the pass element.
Supply Voltage. This pin along with VCCDRV pin and external pass element provides a
regulated 8V bias supply for the uP6209, the lower gate drivers, and the bootstrap circuit for
22 VCC upper drivers. This pin can receive a well-decoupled 4.5~13.2V supply voltage alone if the
VCCDRV pin is left open. Ensure that this pin is bypassed by a ceramic capacitor next to the
IC.
Lower Gate Driver Output for Channel 1. Connect this pin to the gate of lower MOSFET.
23 LGATE1 This pin is monitored by the adaptive shoot-through protection circuitry to determine when the
lower MOSFET has turned off.
Switch Node for Channel 1. Connect this pin to the source of the upper MOSFET and the
drain of the lower MOSFET. This pin is used as the sink for the UGATE driver. This pin is also
24 PHASE1 monitored by the adaptive shoot-through protection circuitry to determine when the upper
MOSFET has turned off. A Schottky diode between this pin and ground is recommended to
reduce negative transient voltage which is common in a power supply system.
Exposed Pad Power Ground. Tie this pin to the ground island/plane through the lowest impedance connection
PGND
available.
uPI Semiconductor Corp., http://www.upi-semi.com
Rev. F00, File Name: uP6209-DS-F0000
5
5 Page uP6209
Absolute Maximum Rating
Supply Input Voltage, VCC (Note 1) ------------------------------------------------------------------------------------------------ -0.3V to +15V
VCCDRV --------------------------------------------------------------------------------------------------------------------------------------- -0.3V to +15V
PHASE to GND
DC ------------------------------------------------------------------------------------------------------------------------------------- -0.3V to 15V
< 200ns ---------------------------------------------------------------------------------------------------------------------------- -5V to 30V
BOOT to PHASE -------------------------------------------------------------------------------------------------------------------------------------- 15V
BOOT to GND
DC ------------------------------------------------------------------------------------------------------------------------- -0.3V to PHASE +15V
< 200ns -------------------------------------------------------------------------------------------------------------------------- -0.3V to 42V
Input, Output or I/O Voltage ---------------------------------------------------------------------------------------------------------- -0.3V to +6V
Storage Temperature Range ------------------------------------------------------------------------------------------------------------- -65OC to +150OC
Junction Temperature ------------------------------------------------------------------------------------------------------------------------------------ 150OC
Lead Temperature (Soldering, 10 sec) ------------------------------------------------------------------------------------------------------------ 260OC
ESD Rating (Note 2)
HBM (Human Body Mode) --------------------------------------------------------------------------------------------------------------------- 2kV
MM (Machine Mode) ----------------------------------------------------------------------------------------------------------------------------- 200V
Thermal Information
Package Thermal Resistance (Note 3)
VQFN4x4-24L θJA ------------------------------------------------------------------------------------------------------------------------- 40°C/W
Power Dissipation, PD @ TA = 25°C
VQFN4x4-24L --------------------------------------------------------------------------------------------------------------------------------------- 2.5W
Recommended Operation Conditions
Operating Junction Temperature Range (Note 4) ------------------------------------------------------------------------ -40°C to +125°C
Operating Ambient Temperature Range -------------------------------------------------------------------------------------- -40°C to +85°C
Supply Input Voltage, VCC ------------------------------------------------------------------------------------ +4.5V to +5.5V or 5.5V to 13.2V
(VCC = 12V, TA = 25OC, unless otherwise specified)
Electrical Characteristics
Parameter
Symbol Test Conditions
Min Typ Max Unit
Supply Input
Supply Voltage
VCC
4.5 -- 13.2 V
Supply Current
ICC UGATE and LGATE Open; VCC = 12V, Switching -- 5 -- mA
Quiescent Supply Current ICC_Q
VFB = 0.7V, No Switching, ICC5 = 0mA
-- 4 -- mA
Regulated Supply Voltage VCC
VIN = 12V, VFB = 0.7 V, No Switching, ICC5 = 0mA
8 9 10 V
VCCDRV Sink Capability I
V = 12V
VCCDRV
IN
4 -- -- mA
5VCC and Power On Reset
5VCC Accuracy
5VCC Maximum Output
Current
5VCC Tolerance
POR Threshold
POR Hysteresis
VCC5
VCC = 12V, VFB = 0.7 V, No Switching, ICC5 = 0mA 4.9 5.2 5.4 V
I V = 12V, V = 0.7 V, No Switching
CC5_MAX
CC
FB
20 -- -- mA
VCC5
VCC5RTH
VCC5HYS
VCC = 6.5V~13.2V, ICC5 = 0 ~ 20mA
4.5 -- 5.5
-- 4.0 4.4
-- 0.2 --
V
V
V
uPI Semiconductor Corp., http://www.upi-semi.com
Rev. F00, File Name: uP6209-DS-F0000
11
11 Page |
Páginas | Total 23 Páginas | |
PDF Descargar | [ Datasheet uP6209.PDF ] |
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