SI8251-IM Silicon Laboratories Inc, SI8251-IM Datasheet - Page 3
![IC DIGITAL PWR CONTROLLER 32LQFP](/photos/16/12/161268/qfn-24_sml.jpg)
SI8251-IM
Manufacturer Part Number
SI8251-IM
Description
IC DIGITAL PWR CONTROLLER 32LQFP
Manufacturer
Silicon Laboratories Inc
Type
SMPS Controllerr
Specifications of SI8251-IM
Applications
Digital Power Controller
Voltage - Supply
2.25 V ~ 2.75 V
Current - Supply
26mA
Operating Temperature
-40°C ~ 125°C
Mounting Type
Surface Mount
Package / Case
28-QFN
Product
MOSFET Gate Drivers
Mounting Style
SMD/SMT
For Use With
336-1323 - KIT REFERENCE DESIGN FOR SI825X
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Voltage - Input
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
SI8251-IM
Manufacturer:
Silicon Laboratories Inc
Quantity:
10 000
Company:
Part Number:
SI8251-IMR
Manufacturer:
Silicon Laboratories Inc
Quantity:
10 000
T
Section
1. Electrical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
2. Benefits of Digital Power Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
3. Product Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
4. Design Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
5. Example Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
6. Layout Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
7. Pin Descriptions: Si8250/1/2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
8. Ordering Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
9. Package Outline: 32LQFP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
10. Package Outline: 28QFN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Document Change List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30
Contact Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32
A B L E O F
3.1. System Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
3.2. Control Processor Functional Block Descriptions (Figure 1) . . . . . . . . . . . . . . . . . . . 16
3.3. System Management Processor Functional Block Descriptions . . . . . . . . . . . . . . . . 17
5.1. Isolated DC/DC Converter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
5.2. Single-Phase Point of Load (POL) Converter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
7.1. Pin Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
C
O N T E N TS
Rev. 1.0
Si8250/1/2
Page
3