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SI9166BQ-T1 Datasheet(PDF) 5 Page - Vishay Siliconix

No. de pieza SI9166BQ-T1
Descripción Electrónicos  High Frequency Programmable Topology Controller
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Fabricante Electrónico  VISHAY [Vishay Siliconix]
Página de inicio  http://www.vishay.com
Logo VISHAY - Vishay Siliconix

SI9166BQ-T1 Datasheet(HTML) 5 Page - Vishay Siliconix

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16
15
14
13
1
2
3
4
12
11
10
9
5
6
7
8
VS
MODE
N/C
SD
DH
DL
PWM/PSM
PGND
SYNC
VO
GND
VDD
VREF
ROSC
FB
COMP
TSSOP-16
Top View
Si9166
Vishay Siliconix
Document Number: 70847
S-40701—Rev. C, 19-Apr-04
www.vishay.com
5
TYPICAL CHARACTERISTICS (25_C UNLESS OTHERWISE NOTED)
50
100
150
200
250
2
3456
7
200
300
400
500
600
700
800
2
3456
7
PWM Supply Current
PSM Supply Current
VDD − (V)
VDD − (V)
PIN CONFIGURATION
ORDERING INFORMATION
Part Number
Temperature Range
Package
Si9166BQ-T1
25 to 85_C
Tape and Reel
Si9166BQ-T1—E3
−25 to 85_C
Tape and Reel
Eval Kit
Temperature Range
Board Type
Si9166DB
−25 to 85_C
Surface Mount
PIN DESCRIPTION
Pin
Symbol
Description
1
VS
Input supply voltage for the output driver section. Input voltage range is 2.7 V to 6V
2
N/C
Not Used
3
DH
The gate drive output for the high-side p-channel MOSFET. The p-channel MOSFET is the main switch for buck topology
and the synchronous rectifier for the boost topology.
4
PWM/PSM
Logic high = PWM mode, logic low = PSM mode. In PSM mode, synchronous rectification is disabled.
5
SYNC
Externally controlled synchronization signal. Logic high to low transition forces the clock synchronization. If not used, the
pin must be connected to VDD, or logic high.
6
GND
Low power controller ground
7
VREF
1.3-V reference. Decoupled with 0.1-mF capacitor
8
FB
Output voltage feedback connected to the inverting input of an error amplifier.
9
COMP
Error amplifier output for external compensation network.
10
ROSC
External resistor to determine the switching frequency.
11
VDD
Input supply voltage for the analog circuit. Input voltage range is 2.7 V to 6 V.
12
VO
Direct output voltage sense
13
PGND
Power ground for output drive stage
14
DL
The gate drive output for the low-side n-channel MOSFET. The n-channel MOSFET is the synchronous rectifier for the buck
topology and the main switch for the boost topology.
15
SD
Shuts down the IC completely and decreases current consumed by the IC to < 1 mA.
16
MODE
Determines the converter topology. Connect to AGND for Buck or VDD for Boost.


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