mic9130 Micrel Semiconductor, mic9130 Datasheet - Page 2

• Manufacturer Part Number: mic9130
• Description: High-voltage, High-speed Telecom Dc-to-dc Controller
• Manufacturer: Micrel Semiconductor

MIC9130
Ordering Information
Pin Configuration
Pin Description
M9999-040805
Standard
MIC9130BM
MIC9130BQS
Pin Number
10
11
12
13
14
15
16
1
2
3
4
5
6
7
8
9
Part Number
Pb-Free
MIC9130YM
MIC9130YQS
Pin Name
CPWR
RBIAS
COMP
VBIAS
AGND
PGND
SYNC
UVLO
ISNS
LINE
VCC
OSC
OUT
EN
FB
SS
Max. Duty Cycle Junction Temp. Range
50%
50%
CPWR
COMP
RBIAS
SYNC
VCC
LINE
OSC
FB
Pin Function
Line (Input): 180Vdc maximum supply input. May be floated if unused.
Supply (Input): MIC9130 internal supply input.
Bias Resistor (External Component): Connect 562KΩ to ground.
Oscillator RC Network (External Components): Connect external resistor-
capacitor network to set oscillator frequency.
Synchronization (Input): External oscillator input for slave operation of
controller. See OSC. Do not float.
Compensation (External Components): Error amplifier output for external
compensation network connection.
Feedback (Input): Error amplifier inverting input.
Current Limit Selection (Input): When CPWR is high, an over-current
condition at the ISNS input will terminate the gate drive and reset the
soft-start latch. If the CPWR pin is low, an over-current condition at the ISNS
input will terminate the gate drive signal, but will not cause a reset of the
soft-start circuit.
Reference (Output): Internal 5V supply. Will source 5mA maximum.
Enable (Input): Logic level enable/shutdown input; logic high = enabled (on),
logic low = shutdown (off).
Analog Ground (Return)
Soft-Start (External Components): Connect external capacitor to slowly ramp
up duty cycle during startup and over-current conditions.
Undervoltage Lockout (External Components): Connect to unbiased resistive
divider network to set controller’s minimum operating voltage. Connect to
VBIAS if not needed.
Current Sense (Input): Connect between external switching MOSFET source
and switch current sense resistor.
Power Ground (Return)
Switch Drive Output (Output): Connect to gate of external switching
MOSFET.
16-Pin QSOP (QS)
16-Pin SOP (M)
1
2
3
4
5
6
7
8
2
-40°C to +125°C
-40°C to +125°C
16
15
14
13
12
11
10
9 VBIAS
OUT
PGND
ISNS
UVLO
SS
AGND
EN
16-Pin QSOP
16-Pin SOP
Package
Micrel, Inc.
April 2005