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TSI206A

Description
Power Supply Management Circuit, PQFP32, LQFP-32
CategoryPower/power management    The power supply circuit   
File Size286KB,28 Pages
ManufacturerTundra Semiconductor Corp
Download Datasheet Parametric Compare View All

TSI206A Overview

Power Supply Management Circuit, PQFP32, LQFP-32

TSI206A Parametric

Parameter NameAttribute value
package instructionLQFP-32
Reach Compliance Codeunknown
Analog Integrated Circuits - Other TypesPOWER SUPPLY MANAGEMENT CIRCUIT
JESD-30 codeS-PQFP-G32
Number of terminals32
Package body materialPLASTIC/EPOXY
Package shapeSQUARE
Package formFLATPACK
Certification statusNot Qualified
surface mountYES
Terminal formGULL WING
Terminal locationQUAD
Base Number Matches1
Datasheet
Tsi206 Primary Side Monitor with Inrush
Control
Features
Input voltage measurement (24 V or 48 V)
10-bit analog-to-digital converter (ADC)
Input voltage measurement accuracy 0.5%
Control of inrush current
Fuse status monitoring, high and low side
Primary current sensing and measurement
Primary side undervoltage, overvoltage and
brownout detection
Electronic circuit breaker function
Enable control for intermediate bus power
converter
Isolated PI-Link interface to secondary side
controller transmits primary voltage, current,
fuse status and input status data
Input UV shutdown accuracy <1%
Self-powered from 24 V or 48 V nominal
Industrial controllers
Single board computers
Description
The Tsi206 is designed to monitor parameters on
the high voltage primary side of an on-card power
system in a distributed power architecture.
In a typical 24 V or 48 V application, the Tsi206
measures input voltage and current and transmits
the digitized values through the PI-Link interface to
the secondary side controller (Tsi257). It also
controls an external MOSFET to limit card inrush
current at startup. Programmable input overvoltage
(OV) and undervoltage (UV) detection are provided.
The Tsi206 provides on-off control for an isolated
power converter that supplies the intermediate bus
voltage for the card. It monitors the status of up to
four input fuses, both high side and low side. Fuse
status information is transmitted to the secondary
side through the serial PI-Link interface.
Applications
Telecom and datacom cards
ATCA (Advanced Telecom Compute
Architecture) systems
Figure 1 — Typical application circuit
+
+
0V
(Battery
return
)
R5
R3
R4
R17
Tsi206
OP1
ENABLE
VDD
VDDO
TX_H
Power connections
shown as
C4
R19
EMI
filter
Enable
Intermediate
bus (IB) brick
IB rail
-
-
Card connector pins
R1 R2
Seat
(short pins
)
SHUNT
SEAT
CT
R16
TX_L
BUSOFF
R21
VCTRL
FETA
C7
C6
OP2
R13
Q2
UV
VBATT
FUSE_H
SENSE_P
SENSE_OUT
SENSE_IN
Brick
shutdown
signal
from
Tsi257
C11
FUSE_L
R15
R22
R14
Monitor
signal
to
Tsi257
T1
C2
R20
Q1
R18
C5
Isolation
circuit
(see Fig. 7)
R8
R6
R7
R9
-48 V A
Fuse A
Fuse B
NC
VBG
VSS
SENSE_N
POR
BIAS
R12
R10
VSSO
AUX
D1
C3
C1
R11
Primary
Secondary
-48 V B
D2
MD533J
Note:
High-side fuse monitoring is not shown – refer to Figure 8.
80C7000_MA001_01 April 2006
© Tundra Semiconductor Corporation
-1-

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TSI206A TSI206-SIPAV TSI206-SIPV TSI206
Description Power Supply Management Circuit, PQFP32, LQFP-32 Power Management Circuit, Power Management Circuit, Power Supply Management Circuit, PQFP32, LQFP-32
Reach Compliance Code unknown unknown unknown unknown
Maker - Tundra Semiconductor Corp Tundra Semiconductor Corp Tundra Semiconductor Corp
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