LTC1473LCGN Linear Technology, LTC1473LCGN Datasheet - Page 16

• Manufacturer Part Number: LTC1473LCGN
• Description: IC SWITCH DVR PWRPATH DUAL16SSOP
• Manufacturer: Linear Technology
• Series: PowerPath™r

Specifications of LTC1473LCGN

• Applications: Handheld/Mobile Devices
• Fet Type: N-Channel
• Number Of Outputs: 2
• Internal Switch(s): No
• Delay Time - On: 22µs
• Delay Time - Off: 1µs
• Voltage - Supply: 2.8 V ~ 9 V
• Current - Supply: 100µA
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 16-SSOP
• Power Switch Family: LTC1473L
• Mounting: Surface Mount
• Supply Current: 100uA
• Package Type: SSOP N
• Operating Temperature (min): 0C
• Operating Temperature (max): 70C
• Operating Temperature Classification: Commercial
• Pin Count: 16
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

RELATED PARTS
LTC1473L
TYPICAL APPLICATIO
PART NUMBER
LTC1155
LTC1161
LTC1735
LTC1473
LTC1479
LT1505
LT1510
LT1511
LTC1558/LTC1559
LTC1622
LTC1628
LT1769
16
SUPPLY V1
SUPPLY V2
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
[phone] FAX: [phone] www.linear-tech.com
10k
10k
*1812LS-105XKBC, COILCRAFT
1M
3
2
+
–
DESCRIPTION
Dual High Side Micropower MOSFET Driver
Quad Protected High Side MOSFET Driver
Single High Efficiency Synchronous DC/DC Controller
Dual PowerPath Switch Driver
PowerPath Controller for Dual Battery Systems
Synchronous Battery Charger with Adapter Current Limit
Constant-Voltage/Constant-Current Battery Charger
3A Constant-Voltage/Constant-Current Battery Charger
Backup Battery Controller with Programmable Output
Current Mode Step-Down DC/DC Converter
Dual High Efficiency Synchronous Buck DC/DC Controller
2A Constant-Voltage/Constant-Current Battery Charger
1M
8
4
1
5V
1M
1M
5
6
+
–
U
Protected Automatic Switchover Between Two Supplies
1
1 F
LT1490
LT1121-5
3
7
8
C6
2600pF
BAT54C
C7
1 F
C5
1 F
COMMENTS
Internal Charge Pump Requires No External Components
Rugged, Designed for Harsh Environment
Constant Frequency, 3.5 V
V
Designed to Interface with a Power Management P
High Efficiency, Up to 8A Charge Current, End-of-Charge Flag,
28-Pin SSOP, 0.5V Dropout Voltage
Up to 1.5A Charge Current for Lithium-Ion, NiCd and NiMH Batteries
High Efficiency, Minimal External Components to Fast Charge
Lithium, NiMH and NiCd Batteries
Power Supply Backup Using a Single NiCd Cell
550kHz Operation, 100% Duty Cycle, V
2-Phase Switching, 5V Standby in Shutdown, Fault Protection
Charges Lithium, NiCd and NiMH Batteries, 28-Lead SSOP
+
L1*, 1mH
Range from 4.75V to 30V
1
2
3
4
5
6
7
8
IN1
IN2
DIODE
TIMER
V
V
SW
GND
GG
+
LTC1473L
SENSE
SENSE
SAB1
SAB2
GA1
GB1
GA2
GB2
IN
+
–
16
15
14
13
12
11
10
9
36V, Fault Protection
LINEAR TECHNOLOGY CORPORATION 1999
1473lf LT/TP 1099 4K • PRINTED IN USA
IN
Si9926DY
Si9926DY
from 2V to 10V
Q1
Q2
0.033
1473 • TA02
R3
OUT