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ZSPM1501ZA1W0 Datasheet(PDF) 25 Page - Integrated Device Technology

Part # ZSPM1501ZA1W0
Description  True-Digital PWM Controller
Download  101 Pages
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Manufacturer  IDT [Integrated Device Technology]
Direct Link  http://www.idt.com
Logo IDT - Integrated Device Technology

ZSPM1501ZA1W0 Datasheet(HTML) 25 Page - Integrated Device Technology

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ZSPM15xx Datasheet
© 2016 Integrated Device Technology, Inc.
25
January 27, 2016
2
Product Summary
2.1.
Overview
The ZSPM15xx is a configurable true-digital single-phase PWM controller for high-current, non-isolated DC/DC
supplies. It incorporates a pre-configured digital control loop, which is optimized for different power stages,
bundled with output voltage sensing, average inductor current sensing, and extensive fault monitoring and
handling options.
Several different functional units are incorporated in the device. A dedicated digital control loop is used to provide
fast loop response and optimal output voltage regulation. This includes output voltage sensing, average inductor
current sensing, a digital control law, and a digital pulse-width modulator (DPWM). In parallel, a dedicated,
configurable error handler allows fast detection of error signals and their appropriate handling. A housekeeping
analog-to-digital converter (HKADC) ensures the reliable and efficient measurement of environmental signals,
such as input voltage and temperature.
An application-specific, low-power integrated microcontroller is used to control the overall system. It manages
configuration of the various logic units according to the preprogrammed configuration look-up tables and the
external configuration resistors connected to the CONFIG0 and CONFIG1 pins. These pin-strapping resistors
expedite configuration of the over-current protection threshold, compensation, and output voltage slew rate. A
high-reliability, high-temperature one-time programmable memory (OTP) is used to store configuration
parameters. All required bias and reference voltages are internally derived from the external supply voltage.
Figure 2.1
Typical Application Circuit with a 5V Supply Voltage
DrMOS
+5V
+Vout
PGND
Vin
C1,C2,C3
C4,C5,C6
R1
R2,R3
R4
R7,C8
R9
C10,
R8
R5
R6, C9
C7
ZSPM15xx
CONTROL
PGOOD
CONFIG1
CONFIG0
AGND
ADCVREF
VREFP
AVDD18
VDD18
VDD50
VDD33
GND
VIN
TEMP
PWM
DRVEN
ISNSP
ISNSN
VFBP
VFBN
Cout
Cin
D1
L1
C11
THSHDN


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