Datasheet LTC1693 (Linear Technology)
| Manufacturer | Linear Technology |
| Description | High Speed Single/Dual N-Channel MOSFET Drivers |
| Pages / Page | 20 / 1 — FEATURES. DESCRIPTIO. Dual MOSFET Drivers in SO-8 Package. or Single … |
| Revision | A |
| File Format / Size | PDF / 270 Kb |
| Document Language | English |
FEATURES. DESCRIPTIO. Dual MOSFET Drivers in SO-8 Package. or Single MOSFET Driver in MSOP Package. 1.5A Peak Output Current
Model Line for this Datasheet
Text Version of Document
LTC1693 High Speed Single/Dual N-Channel MOSFET Drivers
U FEATURES DESCRIPTIO
■
Dual MOSFET Drivers in SO-8 Package
The LTC®1693 family drives power N-channel MOSFETs
or Single MOSFET Driver in MSOP Package
at high speed. The 1.5A peak output current reduces ■ 1GΩ Electrical Isolation Between the Dual Drivers switching losses in MOSFETs with high gate capacitance. Permits High/Low Side Gate Drive The LTC1693-1 contains two noninverting drivers while ■
1.5A Peak Output Current
the LTC1693-2 contains one noninverting and one invert- ■ 16ns Rise/Fall Times at VCC = 12V, CL = 1nF ing driver. These dual drivers are electrically isolated and ■ Wide VCC Range: 4.5V to 13.2V independent. The LTC1693-3 is a single driver with an ■ CMOS Compatible Inputs with Hysteresis, output polarity select pin. Input Thresholds are Independent of VCC ■ Driver Input Can Be Driven Above V All MOSFET drivers offer V CC CC independent CMOS input ■ Undervoltage Lockout thresholds with 1.2V of typical hysteresis. They can level- ■ Thermal Shutdown shift the input logic signal up or down to the rail-to-rail VCC
U
drive for the external MOSFET.
APPLICATIO S
The LTC1693 contains an undervoltage lockout circuit and a thermal shutdown circuit that disable the external ■ Power Supplies N-channel MOSFET gate drive when activated. ■ High/Low Side Drivers ■ Motor/Relay Control The LTC1693-1 and LTC1693-2 come in an 8-lead SO pack- ■ Line Drivers age. The LTC1693-3 comes in an 8-lead MSOP package. ■ Charge Pumps , LTC and LT are registered trademarks of Linear Technology Corporation.
U TYPICAL APPLICATION Two Transistor Forward Converter
VIN 48VDC ±10% + C1 C2 330µF 1.5µF 63V 63V R1 RETURN 0.068Ω D1 MURS120 L1 Q1 T1 1.5µH MTD20NO6HD 13:2 12V VOUT C5 D2 C3 1.5V/15A • • LTC1693CS8-2 C4 1µF MURS120 1 8 4700pF 0.1µF IN1 VCC1 25V 17 R3 2 7 R2 GND1 OUT1 249Ω C11 D3 12V C6 IN 5.1 + 3 6 Ω 1% 0.1µF MURS120 20 IN2 V 470µF BOOST CC2 4 5 Q2 6.3V R4 C9 19 GND2 OUT2 Q4 Si4420 ×8 LT1339 TG 1.24k 1800pF 1 Si4420 ×2 C7 C8 1% 5% SYNC BAT54 Q3 NPO 2 18 1µF 1µF MTD20NO6HD 5V TS REF R5 R6 100Ω 4 11 2.49k SL/ADJ SENSE + RETURN R7 100Ω 1% 3 12 D4 C SENSE – T LTC1693CS8-2 MBRO530T1 5 16 1 8 I BG AVG IN1 VCC1 6 14 R8 2 7 SS PHASE 301k GND1 OUT1 7 13 1% 3 6 V RUN/SHDN C IN2 VCC2 10 9 4 5 V V C10 C12 REF FB GND2 OUT2 R9 0.1µF 100pF 12k SGND PGND R10 C13 C1: SANYO 63MV330GX 10k 1µF 8 C2: WIMA SMD4036/1.5/63/20/TR C14 C15 15 1% C6: KEMET T510X477M006AS (×8) 3300pF 0.1µF L1: GOWANDA 50-318 T1: GOWANDA 50-319 1693 TA01 1
U FEATURES DESCRIPTIO
■
Dual MOSFET Drivers in SO-8 Package
The LTC®1693 family drives power N-channel MOSFETs
or Single MOSFET Driver in MSOP Package
at high speed. The 1.5A peak output current reduces ■ 1GΩ Electrical Isolation Between the Dual Drivers switching losses in MOSFETs with high gate capacitance. Permits High/Low Side Gate Drive The LTC1693-1 contains two noninverting drivers while ■
1.5A Peak Output Current
the LTC1693-2 contains one noninverting and one invert- ■ 16ns Rise/Fall Times at VCC = 12V, CL = 1nF ing driver. These dual drivers are electrically isolated and ■ Wide VCC Range: 4.5V to 13.2V independent. The LTC1693-3 is a single driver with an ■ CMOS Compatible Inputs with Hysteresis, output polarity select pin. Input Thresholds are Independent of VCC ■ Driver Input Can Be Driven Above V All MOSFET drivers offer V CC CC independent CMOS input ■ Undervoltage Lockout thresholds with 1.2V of typical hysteresis. They can level- ■ Thermal Shutdown shift the input logic signal up or down to the rail-to-rail VCC
U
drive for the external MOSFET.
APPLICATIO S
The LTC1693 contains an undervoltage lockout circuit and a thermal shutdown circuit that disable the external ■ Power Supplies N-channel MOSFET gate drive when activated. ■ High/Low Side Drivers ■ Motor/Relay Control The LTC1693-1 and LTC1693-2 come in an 8-lead SO pack- ■ Line Drivers age. The LTC1693-3 comes in an 8-lead MSOP package. ■ Charge Pumps , LTC and LT are registered trademarks of Linear Technology Corporation.
U TYPICAL APPLICATION Two Transistor Forward Converter
VIN 48VDC ±10% + C1 C2 330µF 1.5µF 63V 63V R1 RETURN 0.068Ω D1 MURS120 L1 Q1 T1 1.5µH MTD20NO6HD 13:2 12V VOUT C5 D2 C3 1.5V/15A • • LTC1693CS8-2 C4 1µF MURS120 1 8 4700pF 0.1µF IN1 VCC1 25V 17 R3 2 7 R2 GND1 OUT1 249Ω C11 D3 12V C6 IN 5.1 + 3 6 Ω 1% 0.1µF MURS120 20 IN2 V 470µF BOOST CC2 4 5 Q2 6.3V R4 C9 19 GND2 OUT2 Q4 Si4420 ×8 LT1339 TG 1.24k 1800pF 1 Si4420 ×2 C7 C8 1% 5% SYNC BAT54 Q3 NPO 2 18 1µF 1µF MTD20NO6HD 5V TS REF R5 R6 100Ω 4 11 2.49k SL/ADJ SENSE + RETURN R7 100Ω 1% 3 12 D4 C SENSE – T LTC1693CS8-2 MBRO530T1 5 16 1 8 I BG AVG IN1 VCC1 6 14 R8 2 7 SS PHASE 301k GND1 OUT1 7 13 1% 3 6 V RUN/SHDN C IN2 VCC2 10 9 4 5 V V C10 C12 REF FB GND2 OUT2 R9 0.1µF 100pF 12k SGND PGND R10 C13 C1: SANYO 63MV330GX 10k 1µF 8 C2: WIMA SMD4036/1.5/63/20/TR C14 C15 15 1% C6: KEMET T510X477M006AS (×8) 3300pF 0.1µF L1: GOWANDA 50-318 T1: GOWANDA 50-319 1693 TA01 1
