SI9166DB Vishay, SI9166DB Datasheet - Page 5

• Manufacturer Part Number: SI9166DB
• Description: Power Management Modules & Development Tools SI9166 Demo Board
• Manufacturer: Vishay

Specifications of SI9166DB

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

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