APW8703 Datasheet, PDF (1/18 Pages) Anpec Electronics Coropration – High-Performance, High-Current DrMOS Power Module

APW8703/6/7
High-Performance, High-Current DrMOS Power Module
Features
• 4.5V ~ 5.5V Input Range for VCC & PVCC
• 4.5V ~ 25V Input Range for VIN
• Power-On-Reset Monitoring on VCC Pin
• APW8703-Up to 10A (peak), 8A (continuous) output
current scale
• APW8706-Up to 8A (peak), 6A (continuous) output
current scale
• APW8707-Up to 25A (peak), 13A (continuous)
output current scale
• Adjustable Over-Current Protection Threshold
• Up to 1.5MHz PWM operation
• Built-in Tri-State PWM input Function
• Built in EN Timing Control function
• Build in N-CH MOSFET for high side, N-CH MOSFET
for low side
• Skip Mode Operation
• Over-Temperature Protection
• TQFN 4x4-23P package and TQFN 5x5-30
packages
• Lead Free and Green Devices Available (RoHS
Compliant)
General Description
The APW8703/6/7 integrates a high-side N-channel
MOSFET and a low-side N-channel MOSFET with adap-
tive dead-time control. The APW8703/6/7 have a built-in
tri-state PWM input function which can support a number
of PWM controllers. When the PWM input signal stays tri-
state, the tri-state function shuts off the high-side MOSFET
and turns on the low-side MOSFET without consider ZC
function. The device is also equipped with Power-On-
Reset(POR) and enable control functions into a single
package and accurate current limit. The device over-cur-
rent protection monitors the output current by using the
voltage drop across the R_DS(ON) of low-side MOSFET, elimi-
nating the need for a current sensing resistor that fea-
tures high efficiency and low cost. The POR circuit with
hysteresis monitors VCC supply voltage to start up/shut-
down the IC at power-on/off. The APW8703/6/7 also can
be enabled or disabled by other power system. Pulling
the EN pin high or low will turn on or shut off the device.
Applications
• Desktops
• Graphics Cards
• Severs
• Portable/Notebook Regulators
Simplified Application Circuit
VCC
C VCC
1uF
VCC
PWM
CONTROLLER
VCC
VIN
PVCC
APW8703
APW8706
APW8707
LX
PWM
EN
AGND
PGND
VIN
CIN
L
VOUT
COUT
ANPEC reserves the right to make changes to improve reliability or manufacturability without notice, and
advise customers to obtain the latest version of relevant information to verify before placing orders.
Copyright © ANPEC Electronics Corp.
1
Rev. A.2 - Jan, 2016
www.anpec.com.tw