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參數(shù)資料
| 型號(hào)： | TEA1201TS |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 0.95 V starting basic power unit |
| 中文描述： | 5 A SWITCHING REGULATOR, 720 kHz SWITCHING FREQ-MAX, PDSO16 |
| 封裝： | 4.40 MM, PLASTIC, MO-152, SOT-369-1, SSOP-16 |
| 文件頁數(shù)： | 3/24頁 |
| 文件大?。?/td> | 108K |
| 代理商： | TEA1201TS |
2002 Jun 06
3
Philips Semiconductors
Product specification
0.95 V starting basic power unit
TEA1201TS
1
FEATURES
Complete DC-to-DC converter circuit, one current
switch and a battery low detector
Configurable for 1, 2 or 3-cell Nickel-Cadmium (NiCd)
or Nickel Metal Hydride (NiMH) batteries and 1 Lithium
Ion (Li-Ion) battery
Guaranteed DC-to-DC converter start-up from 1-cell
NiCd or NiMH battery, even with a load current
Upconversion or downconversion
Internal power MOSFETs featuring a low R
DSon
of
approximately 0.1
Synchronous rectification for high efficiency
Soft start
PWM-only operating option
Stand-alone low battery detector requires no additional
supply voltage
Low battery detection level at 0.90 V, externally
adjustable to a higher level
Adjustable output voltages
Shut-down function
Small outline package
Advanced 0.6
μ
m BICMOS process.
2
APPLICATIONS
Cellular phones
Cordless phones
Personal Digital Assistants (PDAs)
Portable audio players
Pagers
Mobile equipment.
3
GENERAL DESCRIPTION
The TEA1201TS is a fully integrated battery power unit
including a high-efficiency DC-to-DC converter which runs
from a 1-cell NiCd or NiMH battery, a current switch and a
lowbattery detector.The circuitcanbearranged in several
ways to optimize the application circuit of a power supply
system. Therefore, the DC-to-DC converter can be
arranged for upconversion or downconversion and the low
battery detector can be configured for several types of
batteries. Accurate low battery detection is possible while
all other blocks are switched off.
The DC-to-DC converter features efficient, compact and
dynamic power conversion using a digital control concept
comparable with Pulse Width Modulation (PWM) and
Pulse Frequency Modulation (PFM), integrated CMOS
power switches with a very low R
DSon
and fully
synchronous rectification.
The device operates at a switching frequency of 600 kHz
which enables the use of external components with
minimum size. The switching frequency can be
synchronized to an external high frequency clock signal.
Optionally, the device can be kept in PWM control mode
only. Deadlock is prevented by an on-chip undervoltage
lockout circuit.
Active current limiting enables efficient conversion in
pulsed-load systems such as Global System for Mobile
communication (GSM) and Digital Enhanced Cordless
Telecommunications (DECT).
The switch can be used to control the connection of (a part
of) the output load. It shows a low pin-to-pin resistance of
500 m
.
The low battery detector has a built-in detection level
which is optimum for a 1-cell NiCd or NiMH battery.
4
ORDERING INFORMATION
TYPE
NUMBER
PACKAGE
NAME
DESCRIPTION
VERSION
TEA1201TS
SSOP16
plastic shrink small outline package; 16 leads; body width 4.4 mm
SOT369-1
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