MCP1631HV-500E/ST Microchip Technology, MCP1631HV-500E/ST Datasheet - Page 15

• Manufacturer Part Number: MCP1631HV-500E/ST
• Description: IC INTEGRATED PWM HS 20TSSOP
• Manufacturer: Microchip Technology

Specifications of MCP1631HV-500E/ST

• Package / Case: 20-TSSOP
• Pwm Type: Current Mode
• Number Of Outputs: 1
• Frequency - Max: 2MHz
• Duty Cycle: 10%
• Voltage - Supply: 3.5 V ~ 16 V
• Buck: Yes
• Boost: No
• Flyback: No
• Inverting: No
• Doubler: No
• Divider: No
• Cuk: No
• Isolated: Yes
• Operating Temperature: -40°C ~ 125°C
• Frequency-max: 2MHz
• Output Voltage: 3.3 V to 5 V
• Output Current: 250 mA
• Input Voltage: 3 V to 5.5 V
• Switching Frequency: 2 MHz
• Operating Temperature Range: - 40 C to + 125 C
• Mounting Style: SMD/SMT
• Frequency: 1MHz
• Digital Ic Case Style: TSSOP
• No. Of Pins: 20
• Peak Reflow Compatible (260 C): Yes
• Rohs Compliant: Yes
• Leaded Process Compatible: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: MCP1631RD-DCPC1 - REF DES BATT CHARG OR LED DRIVERMCP1631RD-MCC2 - REFERENCE DESIGN MCP1631HV
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

3.0
The descriptions of the pins are listed in
TABLE 3-1:
3.1
Connect power ground return pin to power ground
plane, high peak current flows through the P
the turn on and turn off the external MOSFET devices.
3.2
Shutdown input logic low disables device and lowers I
to minimum value, amplifier A3 (VS) remains functional
for battery voltage sense applications.
3.3
External Oscillator Input, used to set power train
switching frequency and maximum duty cycle, V
enabled while low and disabled while high.
© 2008 Microchip Technology Inc.
TSSOP/SSOP
MCP1631/MCP1631V
8,9,10
11
12
13
14
15
16
17
18
19
20
—
—
—
1
2
3
4
5
6
7
PIN DESCRIPTIONS
Power Ground (P
Shutdown Input (SHDN)
Oscillator Input (OSC
PIN FUNCTION TABLE
2,4,12
QFN
4x4
15
16
17
18
19
20
10
11
13
14
21
—
—
1
3
5
6
7
8
9
MCP1631VHV
TSSOP/SSOP
MCP1631HV/
GND
8,9
10
11
12
13
14
15
16
17
18
19
20
—
—
1
2
3
4
5
6
7
)
IN
)
Table
GND
CS/V
A
3-1.
OSC
A
VDD_OUT
VS
OSC
COMP
SHDN
IS
P
A
P
OV
V
VDD_IN
V
MCP1631/HV/MCP1631V/VHV
Sym
VS
during
IS
NC
V
FB
EP
GND
GND
VDD
REF
EXT
OUT
OUT
IN
RAMP
IN
EXT
IN
IN
DIS
IN
Q
Power ground return
Shutdown input
External oscillator input
Oscillator disable input
Overvoltage comparator input
External voltage reference input
Quiet or analog ground
No connection
High voltage input
Analog bias voltage input
Regulated V
Voltage sense amplifier (A3) input
Current sense input
Voltage sense amplifier output
Current sense amplifier output
Error amplifier (A1) output
Error amplifier inverting input (A1)
CS - current sense input; V
Power V
External driver output
Exposed Thermal Pad (EP); must be connected to A
3.4
Oscillator disable input, used to asycnronously
terminate the V
modulate current for LED driver applications.For
minimum shutdown I
3.5
Overvoltage Comparator input, connect to voltage
divider, internal comparator terminates V
50 ns to limit output voltage to predetermined value.
3.6
External Voltage Reference input, connect fixed or
variable external reference to V
as an error amplifier, the power supply output variable
(voltage or current) will follow this input.
DD
input
DD
Oscillator Disable (OSC
Overvoltage Input (OV
External Reference Voltage Input
(V
output
REF
)
EXT
Description
Q
RAMP
duty cycle. Commonly used to
, connect OSC
voltage ramp input
REF
, with A1 configured
DS22063B-page 15
DIS
IN
DIS
)
to SHDN.
EXT
)
output in
GND