SI9978DW-E3 ics components Configurable H Bridge Driver electronic chip board
ic programmer circuit
,programmable audio chip
Configurable H-Bridge Driver
FEATURES
• H-Bridge or Dual Half-Bridge Operation
• 20- to 40-V Supply
• Static (dc) Operation
• Cross-Conduction Protected
• Current Limit
• Undervoltage Lockout
• ESD Protected
• Fault Output
DESCRIPTION
The Si9978DW is an integrated driver for an n-channel MOSFET H-bridge.
The mode control allows operation as either a full H-bridge driver or as two independent half-bridges. The DIR/PWM input configuration allows easy implementation of either sign/magnitude or anti-phase PWM drive schemes for full H-bridges.
Schmitt triggers on the inputs provide logic signal compatibility and hysteresis for increased noise immunity. An internal low-voltage regulator allows the device to be powered directly from a system supply of 20 to 40 volts. All n-channel gates are driven directly from low-impedance outputs.
The addition of one external capacitor per half-bridge allows internal circuitry to level shift both the power supply and logic signal for the high-side n-channel gate drives.
Internal charge pumps replace leakage current lost in the high-side driver circuits to provide “static” (dc) operation in any output condition.
Protection features include an undervoltage lockout, cross-conduction prevention logic, and overcurrent monitors.
The Si9978DW is available in the 24-pin wide-body SOIC (surface mount) package, specified to operate over the industrial (-40 to +85°C) temperature range.
STOCK LIST
| 2SD1975-P | 3000 | PANASONIC | 15+ | TO-3PL |
| 2N5551G | 3000 | ON | 16+ | TO-92 |
| ADA4938-1ACPZ | 2450 | AD | 16+ | LFCSP |
| BC858B | 12000 | 15+ | SOT-23 | |
| 30CPF04 | 1020 | IR | 16+ | TO-247 |
| 3224G-1-103E | 3000 | BOURNS | 15+ | SMD |
| AT91SAM9G45B-CU | 2500 | ATMEL | 14+ | BGA |
| 74HCT4051D | 7500 | 15+ | SOP | |
| CAT706SVI-GT3 | 1380 | ON | 15+ | SOP-8 |
| AT91M40800-33AU | 2500 | ATMEL | 14+ | QFP100 |
| 50WQ10FNTRPBF | 1200 | IR | 15+ | TO-252 |
| 74HCT08PW | 7500 | 16+ | TSSOP | |
| DS1629S+T | 5880 | MAXIM | 16+ | SOP-8 |
| 1N4148W-7-F | 9000 | DIODES | 15+ | SOD123 |
| HR601680 | 1520 | HANRUN | 13+ | SOP |
| FDN302P | 2200 | FSC | 13+ | SOT-23 |
| CD4013BCN | 1640 | FSC | 13+ | DIP |
| 2SD1415A | 3000 | TOSHIBA | 16+ | TO-220F |
| DS32ELX0124SQE | 4710 | NSC | 13+ | LLP48 |
| HEF4541BT | 1520 | 15+ | SOP | |
| 4N37 | 3000 | FSC | 14+ | DIP-6 |
| ADS1251U | 2000 | TI | 16+ | SOP-8 |
| IKW40N120H3 | 1780 | 16+ | TO-247 | |
| 74HCT244D | 7500 | 15+ | SOP | |
| CPC5622A | 4075 | CLARE | 14+ | SSOP-32 |
| DIT4096IPW | 8220 | TI | 16+ | TSSOP28 |
| AT24C256C-SSHL-T | 2300 | ATMEL | 16+ | SOP |
| DSPIC33FJ128GP306-I/PT | 3720 | MICROCHIP | 16+ | QFP |
| CA3140EZ | 1380 | INTERSIL | 15+ | DIP |
| ADA4899-1YCPZ | 2450 | AD | 15+ | LFCSP8 |
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