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PDF XC6216 Data sheet ( Hoja de datos )
| Número de pieza | XC6216 | |
| Descripción | Voltage Regullators | |
| Fabricantes | Torex Semiconductor | |
| Logotipo |  |
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Preliminary
◆Input Voltage Range : 2.0V~25.0V
◆Output Voltage Range : 2.0V~12.0V
(XC6216B/XE6216B)
2.0V~23.0V
(XC6216C/XE6216C)
2.0v~12.0V
(XC6216D/XE6216D)
◆Output Current
: 150mA~(VOUT(T)≧3.0V)
: 100mA~(VOUT(T)<3.0V)
(VIN=VOUT(T)+3.0V)
◆Current Limit Circuit Built-In
◆Thermal Shutdown Circuit Built-In
◆Ceramic Capacitor Compatible
* XC6216B and C types are preliminary.
■APPLICATIONS
●Car audio, Car navigation systems
●Note book computers, PDAs
●Home appliances
●AV equipment (Cameras, VCRs, etc.)
●Wireless communication equipment
(Cordless phones, etc.)
■GENERAL DESCRIPTION
XC6216/XE6216 series are highly precise, low noise, positive
regulator ICs. The series consists of a voltage reference, an
error amplifier, a current limiter, a thermal shutdown circuit and
awww.DataSheet4U.com phase compensation circuit plus a driver transistor.
The output voltage is selectable in 100mV increments within
the range of 2.0V to 12V using laser trimming technologies
(XC6216B/XE6216B series). Furthermore, with external
resistors, the output voltage can be set from 2.0V to 23V
(XC6216C/XE6216E series). The series’ output stabilization
capacitor (CL) is also compatible with low ESR ceramic
capacitors.
The over current protection circuit and the thermal shutdown
circuit are built-in. These two protection circuits will operate
when the output current reaches current limit level or the
junction temperature reaches temperature limit level.
The CE function enables the output to be turned off and the IC
becomes a stand-by mode resulting in greatly reduced power
consumption.
■FEATURES
Maximum
Output Current
Dropout Voltage
Input Voltage Range
Output Voltage
Setting Range
High Accuracy
Low
Power Consumption
Stand-by Current
High Ripple Rejection
: More than 150mA (Up to 200mA)
(VIN=VOUT(T)+3.0V)
: 300mV@IOUT=20mA
: 2.0V~25.0V
: 2.0V~12.0V (100mV increments)
(With external resistors:
2.0V~23.0V)
: Setting Voltage Accuracy±2%
(Setting Voltage Accuracy±1%
Possible)
: 5μA
: Less than 0.1μA
: 40dB@1kHz
Operating
: -40℃~+85℃
Temperature Range
External Capacitor
: 0.1uF~1.0uF capacitor
recommended
(Internal phase compensation)
Packages
: SOT-25, SOT-89, SOT-89-5,
USP-6C, SOT-223, TO-252
* XE series is the series corresponding to automotive
applications, and is assuring all temperature between
– 40℃ to +85 ℃.
■ TYPICAL APPLICATION CIRCUITS
●XC6216B/XE6216BSeries
(Fixed Output Voltage)
●XC6216C/XE6216CSeries
(Output VoltageExternally Set)
V IN V OUT
CIN C E
1uF VSS
CL
1uF
VIN V OUT
R21
CIN C E
V OFB
CL
1uF
V SS
R22 1uF
XC6216_XE6216 ETR0321_004
1/12
1 page  
■PACKAGING INFORMATION (Continued)
●SOT-223
.
XC6216/XE6216
Series
●TO-252
6. 55±0. 2
5. 3±0. 2
.
0. 75±0. 15
0. 75±0. 15
0. 75±0. 15
（2. 28） （2. 28）
0. 5 ±0. 1
0. 5 ±0. 1
.
5/12
5 Page 
XC6216/XE6216
Series
■ OPERATIONAL EXPLANATION
<Output Voltage Control>
The voltage divided by resistors R11 & R12 is compared with the internal reference voltage by the error amplifier. The
P-channel MOSFET, which is connected to the VOUT pin, is then driven by the subsequent output signal. The output
voltage at the VOUT pin is controlled and stabilized by a system of negative feedback. The current limit circuit and short
protect circuit operate in relation to the level of output current and heat dissipation. Further, the IC’s internal circuitry
can be shutdown via the CE pin’s signal.
V IN
CE
V SS
ON/OFF
Control
- Error
+ A mp
Current
Limit
Thermal
Pr otec tion
V oltage
Ref erence
V OUT
R11
R12
<Current Limiter, Short-Circuit Protection>
The XC6216/XE6216 series includes a current limit circuit, which aid the operations of the current limiter and circuit
protection. When the load current reaches the current limit level, the fixed current limiter circuit operates and output voltage
drops. The output voltage drops further and output current decreases. When the output pin is shorted, a current of about
30mA flows.
<CE Pin>
The IC’s internal circuitry can be shutdown via the signal from the CE pin with the XC6216/XE6216 series. In shutdown
mode, output at the VOUT pin will be pulled down by R11 and R12 to the VSS level. Note that as the standard
XC6216/XE6216 series is ‘High Active/No pull down’, operations will become unstable with the CE pin open. We suggest
that you use this IC with either a VIN voltage or a VSS voltage input at the CE pin. If this IC is used with the correct
specifications for the CE pin, the operational logic is fixed and the IC will operate normally. However, supply current may
increase as a result of through current in the IC’s internal circuitry if a medium voltage is applied.
<Thermal Shutdown>
When the junction temperature of the built-in driver transistor reaches the temperature limit level (150℃ TYP.), the thermal
shutdown circuit operates and the driver transistor will be set to OFF. The IC resumes its operation when the thermal
shutdown function is released and the IC’s operation is automatically restored because the junction temperature drops to the
level of the thermal shutdown release voltage.
<Minimum Operating Voltage>
For the stable operation of the IC, over 2.0V of input voltage is necessary. The output voltage may not be generated
normally if the input voltage is less than 2.0V.
■ NOTES ON USE
1． Please use this IC within the stated absolute maximum ratings. The IC is liable to malfunction should the ratings be
exceeded.
2． Where wiring impedance is high, operations may become unstable due to the noise and/or phase lag depending on
output current. Please strengthen VIN and VSS wiring in particular.
3. Phase compensation inside the IC is performed in the XC6216/XE6216 series. Therefore, an abnormal oscillation does
not occur even if there is no output capacitor CL. An input capacitor CIN around 0.1uF~1.0uF between the VIN pin and
the VSS pin is required for input stability. Also, the output voltage fluctuation such as under shoot or over shoot, which
occurs because of the load change can be controlled by placing the output capacitor CL around 0.1uF~1.0uF between
the VOUT pin and VSS pin. The input capacitor (CIN) and the output capacitor (CL) should be placed to the IC as close as
possible with a shorter wiring.
11/12
11 Page | ||
| Páginas | Total 12 Páginas | |
| PDF Descargar | [ Datasheet XC6216.PDF ] | |
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