SC1205CS.TR Semtech, SC1205CS.TR Datasheet

no-image

SC1205CS.TR

Manufacturer Part Number
SC1205CS.TR
Description
Manufacturer
Semtech
Datasheet

Specifications of SC1205CS.TR

Number Of Drivers
2
Driver Configuration
Inverting/Non-Inverting
Driver Type
High and Low Side
Input Logic Level
CMOS/TTL
Rise Time
24ns
Fall Time
21ns
Propagation Delay Time
32ns
Frequency (max)
1MHz
Operating Supply Voltage (max)
6V
Peak Output Current
3A
Power Dissipation
660mW
Output Resistance
1.2/1Ohm
Operating Supply Voltage (min)
4.15V
Operating Supply Voltage (typ)
5V
Operating Temp Range
0C to 125C
Operating Temperature Classification
Commercial
Mounting
Surface Mount
Pin Count
8
Package Type
SOIC
Lead Free Status / Rohs Status
Not Compliant

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
SC1205CS.TR
Manufacturer:
LT
Quantity:
22
Part Number:
SC1205CS.TR
Manufacturer:
SEMTECH/美国升特
Quantity:
20 000
Part Number:
SC1205CS.TR
Manufacturer:
SEMTECH
Quantity:
3 487
The SC1205 is a cost effective Dual MOSFET Driver de-
signed for switching High and Low side Power MOSFETs.
Each driver is capable of driving a 3000pF load in 20ns
max rise/fall time and has a 20ns max propagation de-
lay from input transition to the gate of the power FET’s.
An internal Overlap Protection circuit prevents shoot-
through from Vin to GND in the main and synchronous
MOSFET’s. The Adaptive Overlap Protection circuit en-
sures the Bottom FET does not turn on until the Top FET
source has reached a voltage low enough to prevent
cross-conduction.
The high current drive capability (3A peak) allows fast
switching, thus reducing switching losses at high (up to
1MHz) frequencies without overheating the driver. The
high voltage CMOS process allows operation from 5-25
Volts at top MOSFET drain, thus making SC1205 suit-
able for battery powered applications. Connecting En-
able pin (EN) to logic low shuts down both drives and
reduces operating current to less than 10uA.
An Under-Voltage-Lock-Out circuit is included to guaran-
tee that both driver outputs are low when the 5V logic
level is less than or equal to 4.4V (typ) at supply ramp up
(4.35V at supply ramp down). An Internal temperature
sensor shuts down all drives in the event of
overtemperature. SC1205 is fabricated utilizing Bi-CMOS
technology for low quiescent current. The SC1205 is of-
fered in a standard SO-8 package.
POWER MANAGEMENT
Revision: September 22, 2004
Typical Application Circuit
Description
Rf
Ri
Vin 5-12V
2200uf
1
2
3
4
5
6
7
8
Rref
VID4
VID3
VID2
VID1
VID0
ERROUT
FB
RREF
SC2422A
BGOUT
2.5m
UVLO
OUT1
OUT2
GND
VCC
OC+
OC-
16
15
14
13
12
11
10
9
10nf
10
+5V
1
Features
Applications
Fast rise and fall times (15ns typical with 3000pf
load)
3 Amp peak drive current
14ns max Propagation delay (BG going low)
Adaptive Non-overlapping Gate Drives provide
shoot-through protection
Floating top drive switches up to 25V
Under-Voltage lock-out
Overtemperature protection
Less than 10
High Density sunchronous power supplies
Motor Drives/Class-D amps/Half bridge drivers
High frequency (to 1.2 MHz) operation allows use
of small inductors and low cost caps in place of
High efficiency portable computers
Battery powered applications
Low cost
electrolytics
VS
EN
CO
SC1205
VS
EN
CO
SC1205
DRN
High Speed Synchronous
BG
TG
DRN
µ
BG
TG
A supply current when EN is low
Power MOSFET Driver
70N03
70N03
70N03
70N03
Vcore, 1.7v,40A
10u,CER
SC1205
www.semtech.com

Related parts for SC1205CS.TR

SC1205CS.TR Summary of contents

Page 1

... High efficiency portable computers Battery powered applications 2.5m 10nf 10 16 VCC +5V 15 BGOUT OUT1 CO SC1205 12 OUT2 11 OC- 10 UVLO 9 GND SC1205 1 SC1205 High Speed Synchronous Power MOSFET Driver A supply current when EN is low µ 10u,CER 70N03 TG DRN 70N03 BG 70N03 TG DRN 70N03 BG Vcore, 1.7v,40A www.semtech.com ...

Page 2

... Exceeding the specifications below may result in permanent damage to the device, or device malfunction. Operation outside of the parameters specified in the Electrical Characteristics section is not implied NOTE: (1) Specification refers to application circuit in Figure 1. Electrical Characteristics Unless specified: -0 < < 125° 5V; 4V < 2004 Semtech Corp < 26V BST < ° ° ° ° www.semtech.com SC1205 ° ° ° C ° C ° µ ...

Page 3

... POWER MANAGEMENT Electrical Characteristics (Cont Operating Specifications Note: (1) This device is ESD sensitive. Use of standard ESD handling precautions is required. 2004 Semtech Corp < < ° < < ° ° ° ° ° µ µ SC1205 ° C ° www.semtech.com ...

Page 4

... POWER MANAGEMENT AC Operating Specifications (Cont Timing Diagrams 2004 Semtech Corp ° ° ° SC1205 www.semtech.com µ s µ s ...

Page 5

... Pin Descriptions NOTE: (1) All logic level inputs and outputs are open collector TTL compatible. 2004 Semtech Corp. Ordering Information Notes: (1) Only available in tape and reel packaging. A reel contains 2500 devices. (2) Lead free product. This product is fully WEEE and RoHS compliant ...

Page 6

... PWM controller that regulates the power supply out- put. (See Application Evaluation Schematic, Figure 4). The timing diagram demonstrates the sequence of events 2004 Semtech Corp. by which the top and bottom drive signals are applied. The shoot-through protection is implemented by holding the bottom FET off until the voltage at the phase node (intersection of top FET source, the output inductor and the bottom FET drain) has dropped below 1V ...

Page 7

... BG driver to hold the bottom gate voltage low. It 2004 Semtech Corp. does this at the expense of increased switching times (and switching losses) for the top FET. ...

Page 8

... Use of SO-8 or other surface mount MOSFETs while increasing thermal resistance, will reduce lead inductance as well as radi- ated EMI. Typical Performance Plots 2004 Semtech Corp. Over Temp Shutdown The SC1205 will shutdown by pulling both driver if its junction temperature exceeds 165 °C. ...

Page 9

... POWER MANAGEMENT Typical Performance Plots 2004 Semtech Corp. Figure 3: PWM input and Gate drive and phase node switching waveforms with time scale expanded. The MOSFETs driven are FDB7030BL . See Figure 4 (Evaluation Board Schematic) Ch1: PWM input signal Ch2: Top Gate Drive ...

Page 10

... POWER MANAGEMENT Evaluation Board Schematic - 3SC1205 Figure 4- Microprocessor Core Supply 820uf,16V 820uf,16V 820uf,16V 1u,16V 2004 Semtech Corp. BST GND BST SC1205 GND 8 * www.semtech.com ...

Page 11

... POWER MANAGEMENT Evaluation Board Bill of Materials 2004 Semtech Corp SC1205 www.semtech.com ...

Page 12

... REFERENCE JEDEC STD MS-012, VARIATION AA. 4. Land Pattern - SO-8 X (C) P NOTES: 1. THIS LAND PATTERN IS FOR REFERENCE PURPOSES ONLY. CONSULT YOUR MANUFACTURING GROUP TO ENSURE YOUR COMPANY'S MANUFACTURING GUIDELINES ARE MET. 2. REFERENCE IPC-SM-782A, RLP NO. 300A. Contact Information 2004 Semtech Corp. DIMENSIONS INCHES A DIM MIN NOM .053 ...

Related keywords