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LTC1729CS8-4.2 Datasheet

  • LTC1729CS8-4.2

  • Li-Ion Battery Charger Termination Controllers

  • 12頁

  • LINER

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Final Electrical Specifications
LTC1729 Series
Li-Ion Battery Charger
Termination Controllers
October 1999
FEATURES
s
s
s
s
s
s
s
s
s
DESCRIPTION
The LTC
廬
1729 series is a family of smart termination
controllers for lithium-ion battery chargers. These ICs
provide trickle charge preconditioning, temperature charge
qualification, time or charge current termination, auto-
matic charger and battery detection and status output.
Combining the LTC1729 series part with the LT
廬
1510
(1.5A), LT1769 (2A), LT1511 (3A) and LT1505 (> 4A)
step-down chargers is a simple operation. Connecting six
pins from the LTC1729 series part to the step-down
chargers completes the integration. The LTC1729 termi-
nation controllers are also compatible with step-down/
step-up (SEPIC) chargers, including the LT1512 (2A switch)
and LT1513 (3A switch).
The LTC1729 series is available in the 8-pin MSOP and SO
packages.
, LTC and LT are registered trademarks of Linear Technology Corporation.
s
Trickle Charge Preconditioning If Cell < 2.7V
Charging Enabled When 0擄C < T < 50擄C
Built-In Termination: 3-Hour Time-Out
C/10 Detection with Status Indicator
Automatic Charger Present Detection
Automatic Battery Present Detection
1- or 2-Cell, 4.1V/Cell or 4.2V/Cell Options
Precision Internal 0.2% Voltage Feedback Divider
Compatible with LT1505/LT1510/LT1511/
LT1512/LT1513/LT1769
Small Footprint/Low Profile
APPLICATIONS
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Cellular Phones
PDAs
Cradle Chargers
Camcorders
TYPICAL APPLICATION
MBRM120T3
SW
0.22碌F
L1**
10碌H
MMBD914L
LT1510-5
PROG
BOOST
GND
OVP
SENSE
BAT
V
C
0.1碌F
C
OUT
***
22碌F
8
7
6
1729 F01
V
CC
1碌F
300鈩?/div>
6.19k
+
1k
+
4.2V
1
2
200鈩?/div>
1碌F
OVP
V
CC
0.1碌F
BAT
V
C
LTC1729-4.2
3
SENSE STATUS
4
GND
NTC
5
10k NTC THERMISTOR, NTHS1206N02 VISHAY/DALE
NOTE: EITHER A THERMISTOR OR 10k RESISTOR MUST BE PRESENT
OPTION: TIE RESISTOR TO STATUS FOR
CHARGE TERMINATION AT
LOW CHARGING CURRENT
* TOKIN OR MARCON SURFACE MOUNT
** COILTRONICS TP3-100, 10碌H, 2.2mm HEIGHT
(0.8A CHARGING CURRENT)
COILTRONICS TP1 SERIES, 10碌H, 1.8mm
HEIGHT (<0.5A CHARGING CURRENT)
*** PANASONIC EEFCD1B220
鈥?/div>
LUMEX SML-LX0805GW-TR
Figure 1. 500kHz Li-Ion Cell Phone Charger (0.8A)
Information furnished by Linear Technology Corporation is believed to be accurate and reliable.
However, no responsibility is assumed for its use. Linear Technology Corporation makes no represen-
tation that the interconnection of its circuits as described herein will not infringe on existing patent rights.
U
U
U
MBRM120T3
INPUT POWER
8.2V TO 20V
C
IN
*
10碌F
1.4k
D1
鈥?/div>
CHARGE STATUS
1

LTC1729CS8-4.2 產品屬性

  • LTC1729

  • 100

  • 集成電路 (IC)

  • PMIC - 電池管理

  • -

  • 充電管理

  • 鋰離子（Li-Ion）

  • -

  • 0°C ~ 70°C

  • 表面貼裝

  • 8-SOIC（0.154"，3.90mm 寬）

  • 8-SOIC

  • 管件

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