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PDF TD8215 Data sheet ( Hoja de datos )
| Número de pieza | TD8215 | |
| Descripción | Step-up DC/DC Controller | |
| Fabricantes | Techcode | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de TD8215 (archivo pdf) en la parte inferior de esta página. Total 16 Páginas | ||
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T echcode®
Step-up DC/DC Controller
DATASHEET
TD8215
General Description
Features
The TD8215 is a single PWM, step‐up DC‐DC controller with
low operating voltage application integrating softstart and
short circuit detection function. The oscillator switching
frequency on chip can be operated by terminating OSC pin to
connect capacitor and resistor for adjustable operating
frequency. Soft‐start is adjusted with the external capacitor,
which sets the input current ramp. Besides, the external
compensation FB pin will apply the flexibility in the dynamic
loop status, which allows using small and low equivalent
series resistance (ESR) ceramic output capacitors.
The TD8215 is available in a Pb‐free, SOP‐8 and
TSSOP‐8package.
2.5 to 5.5V Input Voltage Range
Adjustable Frequency: Maximum 1MHZ
Incorporates Soft‐Start Function
Built‐in Short‐Circuit Detection Circuit (SCP)
Low Operating Current: Maximum to 1mA
Low Shutdown Current: Maximum to 1µA
Under‐Voltage Lockout
Package: SOP‐8 and TSSOP‐8
Lead Free and Green Devices Available (RoHS
Compliant)
Applications
LCD Display Power Source
PDA, PMP, MP3
Digital Camera
Pin Configurations
INV 1
8 FB
SCP
VDD
CTL
27
TD8215
36
45
OSC
GND
OUT
Figure1 Pin Configuration of TD8215(Top View)
March, 20, 2013. Techcode Semiconductor Limited www.techcodesemi.com
1
1 page  
T echcode®
Step-up DC/DC Controller
ERROR AMPLIFIER
Reference Voltage
VREF
VFB=INV
VREF Stability
VREF Variation with Temperature
Transconductance
Input Bias Current
Output Voltage Range
Output Source Current
Output Sink Current
PWM CONTROLLER DRIVER
Output Source Current
Output Sink Current
CONTROL BLOCK
Control Voltage
VDD=2.5V to 5.5V
TA =‐40°C to 85°C
gm
IB INV=0V
VOH ‐
VOL
INV=0V,FB=0.5V
INV=1V,FB=0.5V
ISOURCE
ISINK
Duty<5%, OUT=0V
Duty>5%, OUT=5V
VIL Active mode
VIH Switch‐off mode
DATASHEET
TD8215
0.490
‐
‐
1000
‐
1.6
‐
‐150
140
0.5
5
1
1300
‐
1.8
‐
‐180
170
0.510 V
20
‐
1600
1
‐
0.01
‐210
200
mV
%
µA/V
µA
V
V
µA
µA
‐150
150
‐200
200
‐ mA
‐ mA
‐ ‐ 0.2VDD
0.8VDD
‐
‐
March, 20, 2013. Techcode Semiconductor Limited www.techcodesemi.com
5
5 Page 
T echcode®
Step-up DC/DC Controller
Typical Performance Characteristics(Cont.)
(TA=25,VDD=3.3V,unless otherwise specified)
DATASHEET
TD8215
March, 20, 2013. Techcode Semiconductor Limited www.techcodesemi.com
11
11 Page | ||
| Páginas | Total 16 Páginas | |
| PDF Descargar | [ Datasheet TD8215.PDF ] | |
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