Datasheet LTM4636 (Analog Devices) - 7
| Hersteller | Analog Devices |
| Beschreibung | 40A DC/DC μModule Regulator |
| Seiten / Seite | 36 / 7 — pin FuncTions. PACKAGE ROW AND COLUMN LABELING MAY VARY. RUNC (E2):. … |
| Dateiformat / Größe | PDF / 1.2 Mb |
| Dokumentensprache | Englisch |
pin FuncTions. PACKAGE ROW AND COLUMN LABELING MAY VARY. RUNC (E2):. AMONG µModule PRODUCTS. REVIEW EACH PACKAGE
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LTM4636
pin FuncTions PACKAGE ROW AND COLUMN LABELING MAY VARY RUNC (E2):
Run Control Pin. A voltage above 1.35V will
AMONG µModule PRODUCTS. REVIEW EACH PACKAGE
turn on the control section of the module. A 10k resistor
LAYOUT CAREFULLY.
to ground is internal to the module for setting the RUN
VOUT (A1-A12, B1-B12, C1-C12, D1-D2, D11-D12):
Power pin threshold with a resistor to 5V, and allowing a pull- Output Pins. Apply output load between these pins and GND up resistor to PVCC for enabling the device. See Figure 1 pins. Recommend placing output decoupling capacitance Block Diagram. between these pins and GND pins. Review Table 4.
TRACK/SS (E3):
Output Voltage Tracking Pin and Soft-Start
MODE_PLLIN (H3):
Forced Continuous Mode, Burst Mode Inputs. The pin has a 1.25µA pull-up current source. A Operation, or Pulse-Skipping Mode Selection Pin and capacitor from this pin to ground will set a soft-start ramp External Synchronization Input to Phase Detector Pin. rate. In tracking, the regulator output can be tracked to a Connect this pin to INTVCC to enable pulse-skipping mode different voltage. The different voltage is applied to a voltage of operation. Connect to ground to enable forced continuous divider then to the slave output’s track pin. This voltage mode of operation. Floating this pin will enable Burst Mode divider is equal to the slave output’s feedback divider for operation. A clock on this pin will enable synchronization coincidental tracking. Default soft-start of 750µs with with forced continuous operation. See the Applications TRACK/SS pin connected to INTVCC pin. See the Applica- Information section. tions Information section. In PolyPhase® applications tie
V –
the TRACK/SS pins together.
OUTS1 (D3):
VOUT Sense Ground for the Remote Sense Amplifier. This pin connects to the ground remote sense
VFB (E4):
The Negative Input of the Error Amplifier. Inter- point. Connect to ground when not used. See the Applica- nally, this pin is connected to VOUTS1 with a 4.99k precision tions Information section. resistor. Different output voltages can be programmed –
V +
with an additional resistor between V . In
OUTS1 (D4):
This pin should connect to VOUT and is FB and VOUTS1 connected to V PolyPhase operation, tying the V FB through a 4.99k resistor. This pin is FB pins together allows for used to connect to a remote sense point of the load for parallel operation. See the Applications Information section. accurate voltage sensing. Either connect to remote sense
COMPA (E5):
Current Control Threshold and Error Amplifier point or directly to VOUT. See the Applications Information Compensation Point. The current comparator threshold section for details. increases with this control voltage. Tie all COMPA pins
COMPB (D5):
Internal compensation network provided that together for parallel operation. This pin allows external coincides with proper stability utilizing the values in Table compensation. See the Applications Information section. 5. Just connect this pin to COMPA for internal compensa-
SNSP2 (F1):
Current Sense Signal Path. Connect this pin tion. In parallel operation with other LTM4636 devices, to SNSP1 (F2). connect COMPA and COMPB pins together for internal compensation, then connect all COMPA pins together.
SNSP1 (F2):
Current Sense Signal Path. Connect this pin to SNSP2 (F1). Both pins are used to calibrate current
GND (D6-D10, E6-E10, E12, F7, F8, F10-F12, G1-G2, G6
sense matching and current limit at final test.
G10, H1, H10-H12, J1-J3, J8-J12, K1-K3, K9-K10, K12, L1-L3, L9-L10, L12, M1-M3, M9-M12):
Ground Pins for
HIZREG (F3):
When this pin is pulled low the power stage Both Input and Output Returns. is disabled into high impedance. Tie this pin to VIN or in TVCC for normal operation.
PGOOD (E1):
Output Voltage Power Good Indicator. Open- drain logic output is pulled to ground when the output voltage exceeds a ±7.5% regulation window. 4636f For more information www.linear.com/LTM4636 7 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Decoupling Requirements Operation Applications Information Typical Applications Package Description Package Photo Typical Application Design Resources Related Parts
pin FuncTions PACKAGE ROW AND COLUMN LABELING MAY VARY RUNC (E2):
Run Control Pin. A voltage above 1.35V will
AMONG µModule PRODUCTS. REVIEW EACH PACKAGE
turn on the control section of the module. A 10k resistor
LAYOUT CAREFULLY.
to ground is internal to the module for setting the RUN
VOUT (A1-A12, B1-B12, C1-C12, D1-D2, D11-D12):
Power pin threshold with a resistor to 5V, and allowing a pull- Output Pins. Apply output load between these pins and GND up resistor to PVCC for enabling the device. See Figure 1 pins. Recommend placing output decoupling capacitance Block Diagram. between these pins and GND pins. Review Table 4.
TRACK/SS (E3):
Output Voltage Tracking Pin and Soft-Start
MODE_PLLIN (H3):
Forced Continuous Mode, Burst Mode Inputs. The pin has a 1.25µA pull-up current source. A Operation, or Pulse-Skipping Mode Selection Pin and capacitor from this pin to ground will set a soft-start ramp External Synchronization Input to Phase Detector Pin. rate. In tracking, the regulator output can be tracked to a Connect this pin to INTVCC to enable pulse-skipping mode different voltage. The different voltage is applied to a voltage of operation. Connect to ground to enable forced continuous divider then to the slave output’s track pin. This voltage mode of operation. Floating this pin will enable Burst Mode divider is equal to the slave output’s feedback divider for operation. A clock on this pin will enable synchronization coincidental tracking. Default soft-start of 750µs with with forced continuous operation. See the Applications TRACK/SS pin connected to INTVCC pin. See the Applica- Information section. tions Information section. In PolyPhase® applications tie
V –
the TRACK/SS pins together.
OUTS1 (D3):
VOUT Sense Ground for the Remote Sense Amplifier. This pin connects to the ground remote sense
VFB (E4):
The Negative Input of the Error Amplifier. Inter- point. Connect to ground when not used. See the Applica- nally, this pin is connected to VOUTS1 with a 4.99k precision tions Information section. resistor. Different output voltages can be programmed –
V +
with an additional resistor between V . In
OUTS1 (D4):
This pin should connect to VOUT and is FB and VOUTS1 connected to V PolyPhase operation, tying the V FB through a 4.99k resistor. This pin is FB pins together allows for used to connect to a remote sense point of the load for parallel operation. See the Applications Information section. accurate voltage sensing. Either connect to remote sense
COMPA (E5):
Current Control Threshold and Error Amplifier point or directly to VOUT. See the Applications Information Compensation Point. The current comparator threshold section for details. increases with this control voltage. Tie all COMPA pins
COMPB (D5):
Internal compensation network provided that together for parallel operation. This pin allows external coincides with proper stability utilizing the values in Table compensation. See the Applications Information section. 5. Just connect this pin to COMPA for internal compensa-
SNSP2 (F1):
Current Sense Signal Path. Connect this pin tion. In parallel operation with other LTM4636 devices, to SNSP1 (F2). connect COMPA and COMPB pins together for internal compensation, then connect all COMPA pins together.
SNSP1 (F2):
Current Sense Signal Path. Connect this pin to SNSP2 (F1). Both pins are used to calibrate current
GND (D6-D10, E6-E10, E12, F7, F8, F10-F12, G1-G2, G6
sense matching and current limit at final test.
G10, H1, H10-H12, J1-J3, J8-J12, K1-K3, K9-K10, K12, L1-L3, L9-L10, L12, M1-M3, M9-M12):
Ground Pins for
HIZREG (F3):
When this pin is pulled low the power stage Both Input and Output Returns. is disabled into high impedance. Tie this pin to VIN or in TVCC for normal operation.
PGOOD (E1):
Output Voltage Power Good Indicator. Open- drain logic output is pulled to ground when the output voltage exceeds a ±7.5% regulation window. 4636f For more information www.linear.com/LTM4636 7 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Decoupling Requirements Operation Applications Information Typical Applications Package Description Package Photo Typical Application Design Resources Related Parts