Datasheet LTC1922-1 (Analog Devices) - 2
| Manufacturer | Analog Devices |
| Description | Synchronous Phase Modulated Full-Bridge Controller |
| Pages / Page | 24 / 2 — ABSOLUTE AXI U. RATI GS. PACKAGE/ORDER I FOR ATIO. (Note 1). ELECTRICAL … |
| File Format / Size | PDF / 316 Kb |
| Document Language | English |
ABSOLUTE AXI U. RATI GS. PACKAGE/ORDER I FOR ATIO. (Note 1). ELECTRICAL CHARACTERISTICS The
Model Line for this Datasheet
Text Version of Document
LTC1922-1
W W W U U W U ABSOLUTE AXI U RATI GS PACKAGE/ORDER I FOR ATIO (Note 1)
TOP VIEW ORDER PART VCC to GND SYNC 1 20 CT NUMBER Low Impedance Source ... –0.3V to 10V RAMP 2 19 GND (Chip Self Regulates at 10.3V) CS 3 18 OUTA LTC1922EG-1 All Other Pins to GND COMP 4 17 OUTB LTC1922IG-1 (Low Impedance Source) ... –0.3V to 5.5V R 5 16 LEB OUTC LTC1922EN-1 VCC (Current Fed).. 25mA FB 6 15 VCC LTC1922IN-1 VREF Output Current .. Self Regulated SS 7 14 OUTD Outputs (A, B, C, D, E, F) Current ... ±100mA PDLY 8 13 OUTE Operating Temperature Range (Note 5) SBUS 9 12 OUTF LTC1922E ... – 40°C to 85°C ADLY 10 11 VREF LTC1922I .. – 40°C to 85°C G PACKAGE N PACKAGE Storage Temperature Range ... – 65°C to 125°C 20-LEAD PLASTIC SSOP 20-LEAD PDIP T Lead Temperature (Soldering, 10 sec).. 300°C JMAX = 125°C, θJA = 110°C/W (G) TJMAX = 125°C,θJA = 62°C/W (N) Consult factory for parts specified with wider operating temperature ranges.
ELECTRICAL CHARACTERISTICS The
●
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at VCC = 9.5V, CT = 180pF, TA = TMIN to TMAX unless other wise noted. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS Input Supply
UVLO Undervoltage Lockout Measured on VCC 10.25 10.7 V UVHY UVLO Hysteresis Measured on VCC 3.8 4.2 V ICCST Start-Up Current VCC = VUVLO – 0.3V ● 145 250 µA ICCRN Operating Current 4 7 mA VSHUNT Shunt Regulator Voltage Current Into VCC = 10mA 10.2 10.8 V RSHUNT Shunt Resistance Current Into VCC = 7mA to 17mA –1.5 2 Ω
Delay Blocks
DTHR Delay Pin Threshold SBUS = 1.5V 1.38 1.50 1.62 V ADLY and PDLY SBUS = 2.25V 2.08 2.25 2.42 V DHYS Delay Hysteresis Current SBUS = 1.5V, ADLY/PDLY = 1.6V 1.1 1.3 1.45 mA ADLY and PDLY DTMO Delay Time-Out SBUS = 1.5V 600 ns SBUS = 2.25V 900 ns DZRT Zero Delay Threshold Measured on SBUS 3 4.15 5 V
Phase Modulator
ROS RAMP Offset Voltage Measured on COMP, RAMP = 0V 0.4 V IRMP RAMP Discharge Current RAMP = 1V, COMP = 0V 30 50 mA ISLP Slope Compensation Current Measured on CS, CT = 1.5V 35 55 75 µA CT = 3V 70 110 150 µA DCMX Maximum Phase Shift COMP = 4V ● 95 99.5 % DCMN Minimum Phase Shift COMP = 0V ● 0.1 0.6 % 2
W W W U U W U ABSOLUTE AXI U RATI GS PACKAGE/ORDER I FOR ATIO (Note 1)
TOP VIEW ORDER PART VCC to GND SYNC 1 20 CT NUMBER Low Impedance Source ... –0.3V to 10V RAMP 2 19 GND (Chip Self Regulates at 10.3V) CS 3 18 OUTA LTC1922EG-1 All Other Pins to GND COMP 4 17 OUTB LTC1922IG-1 (Low Impedance Source) ... –0.3V to 5.5V R 5 16 LEB OUTC LTC1922EN-1 VCC (Current Fed).. 25mA FB 6 15 VCC LTC1922IN-1 VREF Output Current .. Self Regulated SS 7 14 OUTD Outputs (A, B, C, D, E, F) Current ... ±100mA PDLY 8 13 OUTE Operating Temperature Range (Note 5) SBUS 9 12 OUTF LTC1922E ... – 40°C to 85°C ADLY 10 11 VREF LTC1922I .. – 40°C to 85°C G PACKAGE N PACKAGE Storage Temperature Range ... – 65°C to 125°C 20-LEAD PLASTIC SSOP 20-LEAD PDIP T Lead Temperature (Soldering, 10 sec).. 300°C JMAX = 125°C, θJA = 110°C/W (G) TJMAX = 125°C,θJA = 62°C/W (N) Consult factory for parts specified with wider operating temperature ranges.
ELECTRICAL CHARACTERISTICS The
●
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at VCC = 9.5V, CT = 180pF, TA = TMIN to TMAX unless other wise noted. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS Input Supply
UVLO Undervoltage Lockout Measured on VCC 10.25 10.7 V UVHY UVLO Hysteresis Measured on VCC 3.8 4.2 V ICCST Start-Up Current VCC = VUVLO – 0.3V ● 145 250 µA ICCRN Operating Current 4 7 mA VSHUNT Shunt Regulator Voltage Current Into VCC = 10mA 10.2 10.8 V RSHUNT Shunt Resistance Current Into VCC = 7mA to 17mA –1.5 2 Ω
Delay Blocks
DTHR Delay Pin Threshold SBUS = 1.5V 1.38 1.50 1.62 V ADLY and PDLY SBUS = 2.25V 2.08 2.25 2.42 V DHYS Delay Hysteresis Current SBUS = 1.5V, ADLY/PDLY = 1.6V 1.1 1.3 1.45 mA ADLY and PDLY DTMO Delay Time-Out SBUS = 1.5V 600 ns SBUS = 2.25V 900 ns DZRT Zero Delay Threshold Measured on SBUS 3 4.15 5 V
Phase Modulator
ROS RAMP Offset Voltage Measured on COMP, RAMP = 0V 0.4 V IRMP RAMP Discharge Current RAMP = 1V, COMP = 0V 30 50 mA ISLP Slope Compensation Current Measured on CS, CT = 1.5V 35 55 75 µA CT = 3V 70 110 150 µA DCMX Maximum Phase Shift COMP = 4V ● 95 99.5 % DCMN Minimum Phase Shift COMP = 0V ● 0.1 0.6 % 2
