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PDF TD62651F Data sheet ( Hoja de datos )
| Número de pieza | TD62651F | |
| Descripción | 5V POWER SUPPLY & SUPPLY MONITORING+COMMUNICATIONS IC | |
| Fabricantes | Toshiba | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de TD62651F (archivo pdf) en la parte inferior de esta página. Total 17 Páginas | ||
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TD62650,651,652F
TOSHIBA BIPOLAR DIGITAL INTEGRATED CIRCUIT SILICON MONOLITHIC
TD62650F,TD62651F,TD62652F
5V POWER SUPPLY & SUPPLY MONITORING + COMMUNICATIONS IC
The TD62650F series covers products developed for use in
microcomputer systems applicable to automatic vending
machines. They produce an output voltage of 5 V ± 0.5 V without
need for adjustment, through their accurate reference voltage and
amplifier circuit.
The 5V section can reset the system by outputting reset signals at
power−on, and also output a reset signal when the 5 V output
voltage drops below the specified 92% (TD62650F / 652F) or 85%
(TD62651F) because of external disturbances or other problem.
It also incorporates a watchdog timer for self−diagnosing the
system. When the system malfunctions, the IC generates reset
pulses intermittently to prevent the system from running away.
The interface section incorporates three serial ports
corresponding to the typical 24−V 4800 bps system in
microcomputers.
Weight: 0.63 g (Typ.)
FEATURES
l Accurate output
: 5V ± 0.25 V
l Output PNP Tr incorporated : Current capacity ; 300 mA (max)
l Power−on Reset timer incorporated
l Watchdog timer incorporated
l Small flat package sealing : SSOP30 pin (1 mm pitch)
l Difference 1
CHARACTERISTIC
Reset Detecting
Voltage
TD62650 / 652F
5V / 92%
TD62651F
5V / 85%
PIN CONNECTION
l Difference 2
Time setting resistance 22 kΩ for power−on reset /
watchdog timer, and PULL resistance of 4.7 kΩ for
RESET pin.
TD62650F
TD62651F
TD62652F
Built−in
None
None
1 2001-07-04
1 page  
PIN FUNCTION
PIN No.
PIN NAME
1 GND
2 COMP
3 VCCIN
4 VCCOUT
5 OUT
6 BIAS
7 VCC2
8 SLSYN
9 50 / 60
10 MSSYN
11 CPUOUT
12 LED
13 TXD
14 RXD
15 PG
16 SLTXD
17 MSRXD
18 MSTXD
19 TXDOUT
20 SYNIN
21 MS50 / 60
22 SL50 / 60
23 SYN
24 HNSYN
25 CCK
TD62650,651,652F
PIN FUNCTION
GND pin for 5 V power supply and supply monitoring.
Phase compensation pin for output stabilization.
Power supply pin for internal circuit. The output voltage can also be detected at this pin.
Output pin for built−in Power Tr, having a current capacitance of 300 mA (max). It is also used
as an output pin for 5 V constant power supply through shorting with VCCIN pin.
Connected to the base of an external PNP transistor so that the output voltage is stabilized.
Current design suitable for load capacities is thus possible.
Since the recommended IOUT current is 5 mA, an output current of 300 mA is assured if the
external transistor has an hFE of 60.
When the internal transistor is used, it can be opened.
Power supply starting pin. The starting current is supplied through a resistor to which the input
voltage is applied.
When VCCIN rises above 3.0 V, the starting current is absorbed in the internal circuit ; instead,
IOUT is supplied via VCCIN.
Power supply pin for the 24−V system.
Input pin for the 24−V system interface. Pull−up resistor 47 kΩ is incorporated at VCC2 pin.
Input pin for 24−V system interface. Pull−up resistor 47 kΩ is incorporated at VCC2 pin.
Output pin for the 24−V system open collector.
Input pin for the 5−V system Push / Pull inverter. Pull−up resistor 30 kΩ is incorporated at
VCCIN pin.
LED lighting pin for the 8 system open collector. 680 Ω limiting resistor is incorporated.
Output pin for the 24−V system open collector.
Input pin for the 24−V system interface. Pull−up resistor 47 kΩ is incorporated at the VCC2 pin.
GND pin for the 5−V / 24−V system interfaces.
Output pin for the 5−V system open collector. Pull−up resistor 4.7 kΩ is incorporated at the
VCCIN pin.
Output pin for the 5−V system Push−Pull buffer.
Input pin for the 5−V system interface, for input at LED (12 pin) and TXD (13 pin) pins.
Output pin for the 5−V system Push / Pull inverter (CPUOUT : 11 pin).
Input pin for the 5−V system interface.
Output pin for the 5−V system open collector. Pull−up resistor 4.7 kΩ is incorporated at VCCIN
pin.
Output pin for the 5−V system Push / Pull buffer.
Output pin for the 5−V system Push−Pull buffer.
Output pin for the 5−V system open collector. Pull−up resistor 4.7 kΩ incorporated at VCCIN
pin.
Output pin for the 5−V system Push−Pull buffer.
5 2001-07-04
5 Page 
TD62650,651,652F
CHARACTERISTIC
Clock Input Pulse width
Maximum Response Frequency 1
Maximum Response Frequency 2
Msck Pin Input Signal Rise Time
Minimum Input / Output Voltage
Difference
SYMBOL
TW CK
fMAX MSCK
fMAX CK
tr MSCK
TEST
CIR−
CUIT
―
―
―
―
TEST CONDITION
MIN TYP. MAX UNIT
(Note 9)
3
2
10
―
― ― µs
― ― kHz
― ― kHz
― 500 ns
VOH VCCOUT ― IVCCOUT = 0.1 A
― ― 1.5 V
Note 1: 4 V ÷ (@IOH (VOH = 0 V) − @IOH (VOH = 4 V)
Note 2: VBIAS = 8 V, VCCIN − VCCOUT Short
Open Collector I / O : Open
Push−Pull I / O
: Open
MSCK Input
: Open
Note 3: Reset Timer (1)
: Power On Reset Time
Reset Timer (2) : Watchdog Reset Time
Note 4: MSCK, CK Pins
Note 5: HNSYN, MS50 / 60, MSRXD Pull / UP Resistance + CCK, SYN, SL50 / 60, TXDOUT, SLTXD Driving Current
Note 6: CT Unit (µF)
Note 7: VCCIN, VCCOUT Open
Note 8: Only TD62651F, TD62652F
Note 9: Input Condition 5 V : 0 to 100%
11 2001-07-04
11 Page | ||
| Páginas | Total 17 Páginas | |
| PDF Descargar | [ Datasheet TD62651F.PDF ] | |
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