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ISL8115 PDF Data sheet ( 特性 )

部品番号 ISL8115
部品説明 High Voltage Synchronous Buck PWM Controller
メーカ Intersil Corporation
ロゴ Intersil Corporation ロゴ 



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ISL8115 Datasheet, ISL8115 PDF,ピン配置, 機能
High Voltage Synchronous Buck PWM Controller with
Integrated Gate Driver and Current Sharing Capability
ISL8115
The ISL8115 is a synchronous buck PWM controller with
current sharing capability. The current sharing function allows
multiple modules to be connected in parallel to achieve higher
output current and to reduce input and output ripple current,
resulting in fewer components and reduced output dissipation.
Utilizing voltage-mode control with input voltage feed-forward
compensation, the ISL8115 maintains a constant loop gain for
optimal transient response, especially for applications with a
wide input voltage range.
The ISL8115 protects against overcurrent conditions by
inhibiting the PWM operation while monitoring the current
with DCR of the output inductor, or a precision resistor. It also
has a pre-POR overvoltage protection option, which provides
some protection to the load if the upper MOSFET(s) is shorted.
The ISL8115 features remote ground sensing, programmable
input voltage UVLO, output under/overvoltage protection,
power-good indication, and fault Hand Shake capability.
Applications
• Power supply for datacom/telecom and POL
• Wide input voltage range buck regulators
• High current density power supplies RF power amplifier bias
compensation
Features
• Wide VIN range operation: 2.97V to 36V; up to 5.5V output
and 30A load current per phase
• Fast transient response
- Voltage-mode PWM leading-edge modulation with
non-linear control
- Input voltage feed-forward
• Integrated 5V high speed 4A MOSFET gate drivers
- Internal bootstrap diode
• Excellent output voltage regulation
- 0.6V ±1.0% internal reference (-40°C ~ 125°C)
- 0.6V ±0.7% internal reference (-40°C ~ 105°C)
- Differential voltage sensing
• Excellent current balancing and overcurrent protection
- Peak and average overcurrent protection
- Output current monitor on the ISET pin
• Oscillator programmable from 150kHz to 1.5MHz
- Frequency synchronization to external clock signal
• Diode emulation mode for light load efficiency improvement
• Power-good open drain output
• Pre-bias start-up function
• Output OVP, UVP; OTP
• Adjustable Soft-Start
CPLL
2.2nF
RPLL
5.11k
ROS1
2k
RFB3 3k
CFB2
33nF
RFB2
787
CFB3 RFB3
8.2nF 49.9
CFB1
2.2nF
ROS
2k
3k
RFB1
C
0.22µF
1.27k
RISET
10k
CISET
1nF
CPLL_H
390pF
RCONF
11.8k
RSS
18.2k
RFSET
113k
REN_L
10k
25 GND
19 ISET
20 ISHARE
21 PLL_COMP
U1
22 CONF ISL8115FRTZ
23 CLKOUT
24 SS
12
LGATE
PVCC 11
PHASE 10
CPVCC
4.7µF
QL
4
RPCC 2*RJK0301
2.2
UGATE 9
BOOT 8
VIN 7
CBOOT
0.22µF
CVIN 2.2µF
4
QH
2*RJK0305
REN_U
68.1k
CVCC
2.2µF
140k
RFF_L
4.12k
RVIN
2
RFF_H
33.2k
R
2.8k
CVIN1
4*10µF
12
LOUT
320nH, 0.53m, PA1513-321
FIGURE 1. TYPICAL APPLICATION CIRCUIT, 10V-15V INPUT, 1.5V/30A OUTPUT
2*6TPF330M9L;
4*100µF; 4*1µ
COUT
VOUT
1.5V/30A
10V-15V
VIN
September 23, 2013
FN8272.1
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774 | Copyright Intersil Americas LLC 2013. All Rights Reserved
Intersil (and design) is a trademark owned by Intersil Corporation or one of its subsidiaries.
All other trademarks mentioned are the property of their respective owners.

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