Topologie | Aufwärtswandler |
Schaltfrequenz | 100-600 kHz |
IC-Revision | D |
The TPS9260x-Q1 family of devices is a single-channel and dual-channel high-side-current LED driver. With full protection and diagnostics, this family of devices is dedicated for and ideally suited to automotive front lighting. The base of each independent driver is a peak-current-mode boost controller. Each controller has two independent feedback loops, a current-feedback loop with a high-side current-sensing shunt and a voltage-feedback loop with an external resistor-divider network. The controller delivers a constant output voltage or a constant output current. The connected load determines whether the device regulates a constant output current (if the circuit reaches the current set-point earlier than voltage set-point) or a constant output voltage (if the circuit reaches the voltage set-point is reached first, for example, in an open-load condition).
Each controller supports all typical topologies such as boost, boost-to-battery, SEPIC, or flyback.
Uses of the high-side PMOS FET driver are for PWM dimming of the LED string and for cutoff in case of an external short circuit to GND to protect the circuit.
Remarks:
Artikel Nr. | Datenblatt | Simulation | Downloads | Produktserie | L (µH) | IRP,40K (A) | ISAT (A) | RDC max. (mΩ) | fres (MHz) | Bauform | Version | ISAT1 (A) | ISAT,30% (A) | RDC (mΩ) | Material | Muster | |
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7447709220 | SPEC | 8 Dateien | WE-PD Speicherdrossel | 22 | 7 | 6.5 | 28 | – | 1210 | Standard | – | – | – | – | |||
74435572200 | SPEC | 8 Dateien | WE-HCI SMT-Hochstrominduktivität | 22 | 10.9 | – | 15.77 | 10.5 | 1890 | SMT | 9 | 11 | 14.6 | MnZn |
Artikel Nr. | Datenblatt | Simulation | |
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7447709220 | SPEC | ||
74435572200 | SPEC |
Muster |
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Artikel Nr. | Datenblatt | Simulation | Downloads | Produktserie | L (µH) | IRP,40K (A) | ISAT (A) | RDC max. (mΩ) | fres (MHz) | Bauform | Version | ISAT1 (A) | ISAT,30% (A) | RDC (mΩ) | Material | Muster |
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