Electronic Components Datasheet Search
  English  ▼

Delete All
ON OFF
ALLDATASHEET.COM

X  

Preview PDF Download HTML

ADP3207C Datasheet(PDF) 4 Page - ON Semiconductor

Part No. ADP3207C
Description  7-Bit Programmable, Multi-Phase Mobile, CPU Synchronous Buck Controller
Download  32 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  ONSEMI [ON Semiconductor]
Direct Link  http://www.onsemi.com
Logo ONSEMI - ON Semiconductor

ADP3207C Datasheet(HTML) 4 Page - ON Semiconductor

  ADP3207C Datasheet HTML 1Page - ON Semiconductor ADP3207C Datasheet HTML 2Page - ON Semiconductor ADP3207C Datasheet HTML 3Page - ON Semiconductor ADP3207C Datasheet HTML 4Page - ON Semiconductor ADP3207C Datasheet HTML 5Page - ON Semiconductor ADP3207C Datasheet HTML 6Page - ON Semiconductor ADP3207C Datasheet HTML 7Page - ON Semiconductor ADP3207C Datasheet HTML 8Page - ON Semiconductor ADP3207C Datasheet HTML 9Page - ON Semiconductor Next Button
Zoom Inzoom in Zoom Outzoom out
 4 / 32 page
background image
ADP3207C
http://onsemi.com
4
PIN FUNCTION DESCRIPTIONS
Pin No
Mnemonic
Description
1
EN
Power Supply Enable Input. Pulling this pin to GND disables the PWM outputs and pulls the PWRGD
output low.
2
PWRGD
Power−Good Output. Open−drain output that signals when the output voltage is outside of the proper
operating range. The pull−high voltage on this pin cannot be higher than VCC.
3
IMON
Current Monitor Output. This pin sources a current proportional to the output load current. A resistor to
FBRTN sets the current monitor gain.
4
CLKEN
Clock Enable Output. The pull−high voltage on this pin cannot be higher than VCC.
5
FBRTN
Feedback Return. VID DAC and error amplifier reference for remote sensing of the output voltage.
6
FB
Feedback Input. Error amplifier input for remote sensing of the output voltage.
7
COMP
Error Amplifier Output and Compensation Point.
8
NC
Not Connected.
9
RPM
RPM Mode Timing Control Input. A resistor between this pin to ground sets the RPM mode turn−on
threshold voltage.
10
DPRSLP
Deeper Sleep Control Input.
11
IREF
This pin sets the internal bias currents. A 80kW resistor is connected from this pin to ground.
12
ILIMP
Current Limit Set. An external resistor from ILIMN to ILIMP sets the current limit threshold of the converter.
13
ILIMN
Current Limit Set. An external resistor from ILIMN to ILIMP sets the current limit threshold of the converter.
14
RT
Multi−phase Frequency Setting Input. An external resistor connected between this pin and GND sets the
oscillator frequency of the device when operating in multi−phase PWM mode.
15
RAMPADJ
PWM Ramp Current Input. An external resistor from the converter input voltage to this pin sets the internal
PWM ramp.
16
LLSET
Output Load Line Programming Input. The center point of a resistor divider between CSREF and
CSCOMP is connected to this pin to set the load line slope.
17
CSREF
Current Sense Reference Voltage Input. The voltage on this pin is used as the reference for the current
sense amplifier and the power−good and crowbar functions. This pin should be connected to the common
point of the output inductors.
18
CSSUM
Current Sense Summing Node. External resistors from each switch node to this pin sum the inductor
currents together to measure the total output current.
19
CSCOMP
Current Sense Compensation Point. A resistor and capacitor from this pin to CSSUM determine the gain of
the current sense amplifier and the positioning loop response time.
20
GND
Ground. All internal biasing and the logic output signals of the device are referenced to this ground.
21 to
23
SW3 to SW1
Current Balance Inputs. Inputs for measuring the current level in each phase. The SW pins of unused
phases should be left open.
24 to
26
PWM3 to
PWM1
Logic−Level PWM Outputs. Each output is connected to the input of an external MOSFET driver, such as
the ADP3611. Connecting the PWM2 and/or PWM3 outputs to VCC causes that phase to turn off, allowing
the ADP3207C to operate as a 1−, 2−, or 3−phase controller.
27
OD
Multi−phase Output Disable Logic Output. This pin is actively pulled low when the ADP3207C enters
single−phase mode or during shutdown. Connect this pin to the SD inputs of the Phase 2 and Phase 3
MOSFET drivers.
28
DCM
Discontinuous Current Mode Enable Output. This pin is actively pulled low when the single−phase inductor
current crosses zero.
29
VRTT
Voltage Regulator Thermal Throttling Logic Output. This pin goes high if the temperature at the monitoring
point connected to TTSENSE exceeds the programmed VRTT temperature threshold.
30
TTSENSE
Thermal Throttling Sense Input and OVP Disable. The center point of a resistor divider (where the lower
resistor is an NTC thermistor) between VCC and GND is connected to this pin to remotely sense the
temperature at the desired thermal monitoring point. Connect TTSENSE VCC if Thermal Throttling is not used.
31
VCC
Supply Voltage for the Device.
32
PSI
Power State Indicator Input. Pulling this pin to GND forces the ADP3207C to operate in single−phase
mode.
33
DRPSTP
Deeper Stop Control Input.
34 to
40
VID6 to VID0
Voltage Identification DAC Inputs. When in normal operation mode, the DAC output programs the FB
regulation voltage from 0.3 V to 1.5 V (see Table 3).


Html Pages

1  2  3  4  5  6  7  8  9  10  11  12  13  14  15  16  17  18  19  20  21  22  23  24  25  26  27  28  29  30  31  32 


Datasheet Download

Go To PDF Page


Link URL




Privacy Policy
ALLDATASHEET.COM
Does ALLDATASHEET help your business so far?  [ DONATE ] 

About Alldatasheet   |   Advertisement   |   Datasheet Upload   |   Contact us   |   Privacy Policy   |   Link Exchange   |   Manufacturer List
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn