Datasheet LTM4653 (Analog Devices) - 10
| Hersteller | Analog Devices |
| Beschreibung | EN55022B Compliant 58V, 4A Step-Down DC/DC µModule Regulator |
| Seiten / Seite | 34 / 10 — PIN FUNCTIONS IMONb (C1):. TEMP– (J2, J7):. TEMP+ (J1, J6):. SW (H4):. NC … |
| Revision | A |
| Dateiformat / Größe | PDF / 3.5 Mb |
| Dokumentensprache | Englisch |
PIN FUNCTIONS IMONb (C1):. TEMP– (J2, J7):. TEMP+ (J1, J6):. SW (H4):. NC (A6-7, B2, B6-7, C6-7, D6-7, E6-7, F6-7, G6-7, H6-7,
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LTM4653
PIN FUNCTIONS IMONb (C1):
Power Inductor Analog Indicator Current
TEMP– (J2, J7):
Temperature Sensor, Negative Input. Default Termination R-C Network. A 10kΩ resistor in Collector and base of a 2N3906-genre PNP bipolar junc- parallel with a 10nF capacitor and terminating to SGND tion transistor (BJT). Optionally interface to tempera- connect to this pin. Connect IMONb to IMONa to achieve ture monitoring circuitry such as LTC2997, LTC2990, default power inductor analog indicator current charac- LTC2974 or LTC2975. Otherwise leave electrically open. teristics: 1V at full scale (4A) load current. (See IMONa.) Pins J2 and J7 are electrically connected together internal
TEMP+ (J1, J6):
Temperature Sensor, Positive Input. to the LTM4653, and thus it is only necessary to connect Emitter of a 2N3906-genre PNP bipolar junction transistor one TEMP– pin to monitoring circuitry. The remaining (BJT). Optionally interface to temperature monitoring cir- TEMP– pin can be used for redundant connectivity or cuitry such as LTC®2997, LTC2990, LTC2974 or LTC2975. routed to an ICT test point for design-for-test consider- Otherwise leave electrically open. Pins J1 and J6 are elec- ations, as desired. trically connected together internal to the LTM4653, and
SW (H4):
Switching Node of Switching Converter Stage. thus it is only necessary to connect one TEMP+ pin to Used for test purposes. May be routed a short distance monitoring circuitry. The remaining TEMP+ pin can be with a thin trace to a local test point to monitor switch- used for redundant connectivity or routed to an ICT test ing action of the converter, if desired, but do not route point for design-for-test considerations, as desired. near any sensitive signals; otherwise, leave electrically open circuit.
NC (A6-7, B2, B6-7, C6-7, D6-7, E6-7, F6-7, G6-7, H6-7, K6-7, L6-7):
No connect pins, i.e., pins with no internal connection. The NC pins predominantly serve to provide improved mounting of the module to the board. In one’s layout, NC pins are permitted to remain electrically uncon- nected or can be connected as desired, e.g., connected to a GND plane for heat-spreading purposes and/or to facilitate routing. Rev. A 10 For more information www.analog.com Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Pin Configuration Electrical Characteristics Typical Performance Characteristics Pin Functions Test Circuit Decoupling Requirements Operation Operation Operation Applications Information Typical Applications Package Photograph Package Description Typical Application Related Parts
PIN FUNCTIONS IMONb (C1):
Power Inductor Analog Indicator Current
TEMP– (J2, J7):
Temperature Sensor, Negative Input. Default Termination R-C Network. A 10kΩ resistor in Collector and base of a 2N3906-genre PNP bipolar junc- parallel with a 10nF capacitor and terminating to SGND tion transistor (BJT). Optionally interface to tempera- connect to this pin. Connect IMONb to IMONa to achieve ture monitoring circuitry such as LTC2997, LTC2990, default power inductor analog indicator current charac- LTC2974 or LTC2975. Otherwise leave electrically open. teristics: 1V at full scale (4A) load current. (See IMONa.) Pins J2 and J7 are electrically connected together internal
TEMP+ (J1, J6):
Temperature Sensor, Positive Input. to the LTM4653, and thus it is only necessary to connect Emitter of a 2N3906-genre PNP bipolar junction transistor one TEMP– pin to monitoring circuitry. The remaining (BJT). Optionally interface to temperature monitoring cir- TEMP– pin can be used for redundant connectivity or cuitry such as LTC®2997, LTC2990, LTC2974 or LTC2975. routed to an ICT test point for design-for-test consider- Otherwise leave electrically open. Pins J1 and J6 are elec- ations, as desired. trically connected together internal to the LTM4653, and
SW (H4):
Switching Node of Switching Converter Stage. thus it is only necessary to connect one TEMP+ pin to Used for test purposes. May be routed a short distance monitoring circuitry. The remaining TEMP+ pin can be with a thin trace to a local test point to monitor switch- used for redundant connectivity or routed to an ICT test ing action of the converter, if desired, but do not route point for design-for-test considerations, as desired. near any sensitive signals; otherwise, leave electrically open circuit.
NC (A6-7, B2, B6-7, C6-7, D6-7, E6-7, F6-7, G6-7, H6-7, K6-7, L6-7):
No connect pins, i.e., pins with no internal connection. The NC pins predominantly serve to provide improved mounting of the module to the board. In one’s layout, NC pins are permitted to remain electrically uncon- nected or can be connected as desired, e.g., connected to a GND plane for heat-spreading purposes and/or to facilitate routing. Rev. A 10 For more information www.analog.com Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Pin Configuration Electrical Characteristics Typical Performance Characteristics Pin Functions Test Circuit Decoupling Requirements Operation Operation Operation Applications Information Typical Applications Package Photograph Package Description Typical Application Related Parts