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| 型號(hào)： | 73S8009C-32IM/F |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 電源管理 |
| 英文描述： | POWER SUPPLY SUPPORT CKT, QCC32 |
| 封裝： | ROHS COMPLAINT, QFN-32 |
| 文件頁(yè)數(shù)： | 1/32頁(yè) |
| 文件大?。?/td> | 348K |
| 代理商： | 73S8009C-32IM/F |
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73S8009C
Versatile Power Management
and Smart Card Interface IC
Simplifying System Integration
DATA SHEET
DS_8009C_025
February 2010
Rev. 1.5
2010 Teridian Semiconductor Corporation
1
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.
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
A.
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
A 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-
A) 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
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| 73S8009C-32IMR/F | POWER SUPPLY SUPPORT CKT, QCC32 |
| 73S8009R-ILR | SPECIALTY ANALOG CIRCUIT, PDSO28 |
| 73S8009R-IMR | SPECIALTY ANALOG CIRCUIT, QCC20 |
| 73S8009R-IM | SPECIALTY ANALOG CIRCUIT, QCC20 |
| 73S8009R-IMR | SPECIALTY ANALOG CIRCUIT, QCC20 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 73S8009C-32IMR/F | 功能描述:輸入/輸出控制器接口集成電路 Smart Card Interface IC RoHS:否 制造商:Silicon Labs 產(chǎn)品: 輸入/輸出端數(shù)量: 工作電源電壓: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-64 封裝:Tray |
| 73S8009C-32IMR/F1 | 功能描述:輸入/輸出控制器接口集成電路 Smart Card Interface IC RoHS:否 制造商:Silicon Labs 產(chǎn)品: 輸入/輸出端數(shù)量: 工作電源電壓: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-64 封裝:Tray |
| 73S8009C-DB | 功能描述:界面開(kāi)發(fā)工具 73S8009C Demo Brd RoHS:否 制造商:Bourns 產(chǎn)品:Evaluation Boards 類型:RS-485 工具用于評(píng)估:ADM3485E 接口類型:RS-485 工作電源電壓:3.3 V |
| 73S8009CN | 制造商:TERIDIAN 制造商全稱:TERIDIAN 功能描述:Combo ISO-7816 and USB Universal Smart Card Interface IC |
| 73S8009CN-32IM/F | 功能描述:輸入/輸出控制器接口集成電路 ISO7816 & USB Unvrsl Smart Card Interface RoHS:否 制造商:Silicon Labs 產(chǎn)品: 輸入/輸出端數(shù)量: 工作電源電壓: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-64 封裝:Tray |
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