Microchip MCP1664 Bruksanvisning
Microchip
Ikke kategorisert
MCP1664
Les nedenfor 📖 manual på norsk for Microchip MCP1664 (30 sider) i kategorien Ikke kategorisert. Denne guiden var nyttig for 2 personer og ble vurdert med 5.0 stjerner i gjennomsnitt av 1.5 brukere
Side 1/30
2015-2022 Microchip Technology Inc. and its subsidiaries DS20005408B-page 1
MCP1664
Features
• 36V, 400 m Integrated Switch
• Passes automotive AEC-Q100 reliability testing
• Up to 92% Efficiency
• Drive LED Strings in Constant Current
• 1.8A Peak Input Current Limit:
-I
LED
up to 200 mA at 3.3V V
IN
, 4 White LEDs
-I
LED
up to 300 mA at 5.0V V
IN
, 4 White LEDs
-I
LED
up to 150 mA at 4.2V V
IN
, 8 White LEDs
• Input Voltage Range: 2.4V to 5.5V
• Undervoltage Lockout (UVLO):
- UVLOatV
IN
Rising: 2.3V, typical
- UVLOatV
IN
Falling: 1.85V, typical
• Shutdown Current (EN = GND): 40 nA Typical
• PWM Operation: 500 kHz Switching Frequency
• Cycle-by-Cycle Current Limiting
• Internal Compensation
• Open Load Protection (OLP) in the event of:
- Feedback Pin Shorted to GND (Prevents
Excessive Current into LEDs)
- Disconnected LED String (Prevents
Overvoltage to the Converter’s Output and
SW Pin)
• Overtemperature Protection
• Available Packages:
- 5-Lead SOT-23
- 8-Lead2mmx3mmTDFN
Applications
• Two and Three-Cell Alkaline or NiMH/NiCd White
LED Driver for Backlighting Products
• Li-Ion Battery LED Lightning Application
• Camera Flash
• LED Flashlights and Backlight Current Source
• Medical Equipment
• Portable Devices:
- Hand-Held Gaming Devices
- GPS Navigation Systems
- LCD Monitors
- Portable DVD Players
General Description
The MCP1664 is a compact, space-efficient,
fixed-frequency, non-synchronous step-up converter
optimized to drive multiple strings of LEDs with
constant current powered from two and three-cell
alkaline or NiMH/NiCd as well as from one-cell Li-Ion or
Li-Polymer batteries.
The device integrates a 36V, 400 m low-side switch,
which is protected by the 1.8A cycle-by-cycle inductor
peak current limit operation. The MCP1664 starts up
without high inrush current or output overshoot. All
compensation and protection circuitry is integrated to
minimize the number of external components.
The internal feedback (V
FB
) voltage is set to 300 mV for
low power dissipation when sensing and regulating the
LED current. A single resistor sets the LED current.
The device features an UVLO which avoids start-up
with low inputs or discharged batteries for two
cell-powered applications.
The MCP1664 features an open load protection (OLP)
which turns off the operation in situations when the
LED string is accidentally disconnected or the feedback
pin is short-circuited to GND.
While in Shutdown mode (EN = GND), the device stops
switching, and consumes 40 nA typical of input current.
The MCP1664 is AEC-Q100 qualified for automotive
applications.
Package Types
* Includes Exposed Thermal Pad (EP); see Table 3-1.
SW
EN
V
IN
1
GND
2
P
GND
V
IN
NC
EN
V
FB
S
GND
SW
NC
MCP1664 SOT-23
V
FB
3
4
5
MCP1664 2mmx3mm TDFN*
1
2
3
4
8
7
6
5
EP
9
High-Voltage Step-Up LED Driver with UVLO and Open Load Protection
Produkspesifikasjoner
| Merke: | Microchip |
| Kategori: | Ikke kategorisert |
| Modell: | MCP1664 |
Trenger du hjelp?
Hvis du trenger hjelp med Microchip MCP1664 still et spørsmål nedenfor, og andre brukere vil svare deg
Ikke kategorisert Microchip Manualer
30 September 2025
30 September 2025
30 September 2025
30 September 2025
30 September 2025
30 September 2025
30 September 2025
30 September 2025
30 September 2025
30 September 2025
Ikke kategorisert Manualer
- Fortinet
- ARC
- Onkyo
- Eden
- Bushnell
- Cigweld
- Jenn-Air
- Nexa
- Geneva
- Metabo
- Viomi
- Jotul
- PAG
- Hawke
- VARI-LITE
Nyeste Ikke kategorisert Manualer
23 Oktober 2025
23 Oktober 2025
23 Oktober 2025
23 Oktober 2025
23 Oktober 2025
23 Oktober 2025
23 Oktober 2025
23 Oktober 2025
23 Oktober 2025
23 Oktober 2025