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PDF 73S8009C Data sheet ( Hoja de datos )
| Número de pieza | 73S8009C | |
| Descripción | Versatile Power Management and Smart Card Interface IC | |
| Fabricantes | Teridian Semiconductor | |
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73S8009C
Versatile Power Management
and Smart Card Interface IC
Simplifying System Integration™
DS_8009C_025
DESCRIPTION
The Teridian 73S8009C is a versatile power
management and single smart card interface circuit
that is ideally suited for smart card reader products
that are battery and/or USB bus-powered. In
addition to its EMV 4.1 and ISO-7816-3 compliant
smart card-to-host interface circuitry; it provides
control, conversion, and regulation of power for a
companion host processor circuit and power for the
smart card. The 73S8009C can operate from a
single 2.7 V to 6.5 V source supply, or a
combination of battery power (4.0 V to 6.5 V) and
USB power (4.4 V to 5.5 V).
The 73S8009C supports 5 V, 3 V, and 1.8 V smart
cards. The smart card signals for RST, CLK, IO,
and auxiliary signals AUX1 and AUX2 are
level-shifted to the selected VCC value. Although
the host controller is required to handle the
detailed signal timing for activation and de-
activation under normal conditions, the 73S8009C
blocks any spurious signals on CLK, RST and IO
during power-up (as VCC rises) and power-down.
The 73S8009C contains two handshaking signals
for the controller: OFF indicates that a card is
present, and RDY indicates that VCC is at an
acceptable value. The 73S8009C will perform
emergency deactivation upon card removal,
voltage faults, or over-current events
The power management circuitry of the 73S8009C
allows operation from a wide range of voltages
from multiple sources. VPC is converted by using
an inductive, step-up power converter to the
intermediate voltage, VP. VP is used by linear
voltage regulators and switches to create the
voltages VDD and as required, VCC. VDD is used by
the 73S8009C and is also made available for the
companion controller circuit or other external
circuits. The VBAT and VBUS pins provide inputs
from alternate power sources as required. An
internal switch in the 73S8009C acts as a
single-pole, double-throw switch that selects either
VBAT or VBUS to be connected to VPC. When the
voltage on VBUS is zero, VBAT is connected to VPC.
When voltage is applied to VBUS, the switch selects
VBUS as the source for power.
DATA SHEET
February 2010
When power is supplied by VPC or VBAT, the
73S8009C is controlled by the ON_OFF pin in the
manner of a “push-on/push-off” button action. The
OFF_REQ and OFF_ACK signals provide
handshaking and control of the power “off”
function by the controller. A SPST momentary
switch to ground connected to ON_OFF is all that
is required for power control. Alternatively, the
“off” state can be initiated from the host controller
through OFF_ACK. When the 73S8009C is “off,”
the current is less than 1 µA.
When power is supplied via the VBUS pin, the
73S8009C is unconditionally in the “power-on”
state regardless of the action of the ON/OFF
switch or OFF_ACK signal. Power supply current
operating from the VBUS power when VCC is off is
less than 500 µA to conform to USB “SUSPEND”
requirements.
APPLICATIONS
• Handheld PINpad smart card readers for
e-commerce, secure login, e-health, Gov’t ID
and loyalty
• Point of Sales & Transaction Terminals
• General Purpose Smart Card Readers
ADVANTAGES
• Ideally suited to USB bus-powered
applications
Ideal for combo bus-powered and/or
self-powered systems
Automatic battery switchover in bus
powered systems
• Very low-power mode (sub-µA) with
push-button ON/OFF switch input with
de-bounce
• Provides 3.3 V / 40 mA power to external
circuitry (host processor or peripheral circuits)
• The inductor-based DC-DC converter provides
higher current and efficiency than usual
charge-pump capacitor-based converters:
Ideal for battery-powered applications
Rev. 1.5
© 2010 Teridian Semiconductor Corporation
1
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DS_8009C_025
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Figures
Figure 1: 73S8009C Block Diagram......................................................................................................... 3
Figure 2: 73S8009C 32-Pin QFN Pinout .................................................................................................. 6
Figure 3: Typical 73S8009C Application Schematic ............................................................................... 17
Figure 4: 73S8009C Logical Block Diagram........................................................................................... 19
Figure 5: Activation Sequence ............................................................................................................... 21
Figure 6: Deactivation Sequence ........................................................................................................... 22
Figure 7: OFF Activity ............................................................................................................................ 22
Figure 8: CS Timing Definitions.............................................................................................................. 23
Figure 9: I/O and I/OUC State Diagram.................................................................................................. 24
Figure 10: I/O – I/OUC Delays - Timing Diagram.................................................................................... 25
Figure 11: On_Off Pin............................................................................................................................ 26
Figure 12: Open Drain type – OFF and RDY.......................................................................................... 26
Figure 13: Power Input/Output Circuit, VDD, LIN, VPC, VCC, VP........................................................... 26
Figure 14: Smart Card CLK Driver Circuit .............................................................................................. 27
Figure 15: Smart Card RST Driver Circuit .............................................................................................. 27
Figure 16: Smart Card IO, AUX1, and AUX2 Interface Circuit................................................................. 28
Figure 17: Smart Card I/OUC, AUX1UC and AUX2UC Interface Circuit.................................................. 28
Figure 18: General Input Circuit ............................................................................................................. 29
Figure 19: OFF_REQ Interface Circuit ................................................................................................... 29
Figure 20: 32-Pin QFN Package Dimensions ......................................................................................... 30
Tables
Table 1: 73S8009C Pin Definitions .......................................................................................................... 7
Table 2: Absolute Maximum Device Ratings .......................................................................................... 10
Table 3: Recommended Operating Conditions....................................................................................... 11
Table 4: DC Smart Card Interface Requirements ................................................................................... 11
Table 5: Digital Signals Characteristics .................................................................................................. 14
Table 6: DC Characteristics ................................................................................................................... 15
Table 7: Voltage / Temperature Fault Detection Circuits......................................................................... 15
Table 8: Thermal Characteristics ........................................................................................................... 15
Table 9: Order Numbers and Packaging Marks...................................................................................... 31
Rev. 1.5
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DS_8009C_025
73S8009CwwDwa.DtaataSShheeete4Ut .com
2.2 Recommended Operating Conditions
Function operation should be restricted to the recommended operating conditions specified in Table 3.
Table 3: Recommended Operating Conditions
Parameter
Supply voltage VPC
Supply Voltage VBUS
Supply Voltage VBAT
Ambient operating temperature
Rating
2.7 to 6.5 VDC
4.4 to 5.5 VDC
4.0 to 6.5 VDC
-40 °C to +85 °C
2.3 Smart Card Interface Requirements
Table 4 lists the 73S8009C Smart Card interface requirements.
Table 4: DC Smart Card Interface Requirements
Symbol Parameter
Condition
Card Power Supply (VCC) Regulator
General Conditions: -40C < 85C, 2.7 V < VPC < 6.6 V
Inactive mode
Inactive mode ICC = 1 mA
Active mode; ICC <65 mA; 5 V
Active mode; ICC < 65 mA; 3 V
Active mode; ICC < 40 mA; 1.8 V
Active mode; single pulse of
100 mA for 2 µs; 5 V, fixed load
= 25 mA
Active mode; single pulse of
VCC
Card supply voltage
100 mA for 2 µs; 3 V, fixed load
including ripple and noise = 25 mA
Active mode; current pulses of
40nAs with peak |ICC | <200
mA, t <400 ns; 5 V
Active mode; current pulses of
40nAs with peak |ICC | <200
mA, t <400 ns; 3 V
Active mode; current pulses of
20nAs with peak |ICC | <100
mA, t <400 ns; 1.8 V
VCCrip
ICCmax
VCC ripple
Card supply output
current
fRIPPLE = 20 kHz – 200 MHz
Static load current, VCC>1.65
Static load current, VCC>4.6 or
2.7 volts as selected
ICCF ICC fault current
Class A, B (5 V and 3 V)
Class C (1.8 V)
ISC Maximum current prior to Load current limit prior to Vcc
shut-down
shut-down
Load current limit prior to Vcc
shut-down for Vcc=1.8 V
VS Vcc slew rate, rise and C = 0.5 µF
fall
Min
-0.1
-0.1
4.65
2.85
1.68
4.6
2.76
4.6
2.7
1.62
75
55
80
60
0.10
Nom
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
0.30
Max Unit
0.1 V
0.4 V
5.25 V
3.15 V
1.92 V
5.25 V
3.15 V
5.25 V
3.15 V
1.92 V
350 mV
40 mA
65 mA
150 mA
130 mA
150 mA
130 mA
0.70 V/μs
Rev. 1.5
11
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| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet 73S8009C.PDF ] | |
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